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Iowa State University
1.
Sun, Bo.
Modeling heat and mass transfer in reacting gas-solid flow using particle-resolved direct numerical simulation.
Degree: 2016, Iowa State University
URL: https://lib.dr.iastate.edu/etd/15818
► Reacting gas-solid flows occur in nature and many industrial applications. Emerging carbon-neutral and sustainable energy generation technologies such as CO2 capture and biofuel production from…
(more)
▼ Reacting gas-solid flows occur in nature and many industrial applications. Emerging carbon-neutral and sustainable energy generation technologies such as CO2 capture and biofuel production from fast pyrolysis of biomass are examples of reacting gas-solid flows in industry. Fundamental scientific understanding of reacting gas-solid flows is needed to overcome technological barriers for the successful development of these technologies. Multiphase computational fluid dynamics (CFD) simulations are increasingly being used for scale-up of reactors from laboratory to pilot to full-scale plants, and also for evaluation of different design options. Device-scale CFD simulations of reacting gas-solid flow are based on statistical descriptions that require closure models for interphase exchange of momentum, heat, and species. The predictive capability of multiphase CFD simulations depends on the accuracy of the models for the interphase exchange terms. Therefore, multiphase CFD simulations require accurate physics-based multiphase flow models of heat and mass transfer as well as chemical reaction rates. Particle-resolved direct numerical simulation (PR-DNS) is a first-principles approach to provided transformative insights into multiphase flow physics for model development. PR-DNS of reacting gas-solid flows can provide accurate quantification of gas-solid interactions.
The primary objective of this work is to develop improved closure models for CFD simulations in reacting gas-solid flows using the PR-DNS approach. A computational tool called particle-resolved uncontaminated-fluid reconcilable immersed boundary method (PUReIBM) has been developed as a part of this work to perform PR-DNS of heat and mass transfer in reacting gas-solid flows. A pseudo-spectral (PS) version of the PUReIBM simulation of flow past a fixed homogeneous particle assembly and freely evolving suspension of particles with heat transfer has provided PR-DNS data that are used to develop closure models in the Eulerian-Eulerian two-fluid average fluid temperature equation and probability density function transport equation, and validate the assumptions in multiphase flow statistical theories.
A fully finite-difference (FFD) version of PUReIBM is also developed to account for wall-bounded flow. The FFD PR-DNS is validated by a suite of test cases and used to perform a detailed comparison with experimental data by using the same setup. In order to extend unclosed models to account for wall effect, wall effect on drag and heat transfer of particle assemblies are studied using FFD PR-DNS. In order to validate the assumption of the isothermal particle in the case of flow past a fixed bed of particles, a preliminary study of the transient heat transfer from a single particle is performed by FFD PR-DNS. A better understanding of the role of heat and mass transfer in reacting gas-solid flow is gained by using FFD PR-DNS to simulate mass transfer in flow past a sphere with a first-order chemical reaction on the particle surface for low and high Reynolds number. These…
Subjects/Keywords: Computational Fluid Mechanics; Direct Numerical Simulation; Heat and Mass Transfer; Multiphase Flow; Multiphase Flow modeling; Engineering Mechanics; Mechanical Engineering
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APA (6th Edition):
Sun, B. (2016). Modeling heat and mass transfer in reacting gas-solid flow using particle-resolved direct numerical simulation. (Thesis). Iowa State University. Retrieved from https://lib.dr.iastate.edu/etd/15818
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Sun, Bo. “Modeling heat and mass transfer in reacting gas-solid flow using particle-resolved direct numerical simulation.” 2016. Thesis, Iowa State University. Accessed March 06, 2021.
https://lib.dr.iastate.edu/etd/15818.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Sun, Bo. “Modeling heat and mass transfer in reacting gas-solid flow using particle-resolved direct numerical simulation.” 2016. Web. 06 Mar 2021.
Vancouver:
Sun B. Modeling heat and mass transfer in reacting gas-solid flow using particle-resolved direct numerical simulation. [Internet] [Thesis]. Iowa State University; 2016. [cited 2021 Mar 06].
Available from: https://lib.dr.iastate.edu/etd/15818.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Sun B. Modeling heat and mass transfer in reacting gas-solid flow using particle-resolved direct numerical simulation. [Thesis]. Iowa State University; 2016. Available from: https://lib.dr.iastate.edu/etd/15818
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Rochester Institute of Technology
2.
Perez-Raya, Isaac Bernabe.
Numerical Investigation of Heat and Mass Transfer Phenomena in Boiling.
Degree: PhD, Microsystems Engineering, 2018, Rochester Institute of Technology
URL: https://scholarworks.rit.edu/theses/9829
► Applications boiling are found in heat sinks for electronics cooling, nuclear and fossil fuel powered steam generators, distillation columns, concentrated solar power systems, glass…
(more)
▼ Applications boiling are found in
heat sinks for electronics cooling, nuclear and fossil fuel powered steam generators, distillation columns, concentrated solar power systems, glass melting furnaces, desalination chambers, and
heat and
mass exchangers. In order to increase the performance and safety margins of these applications, there is a need to develop tools that predict the thermal and fluid behavior during bubble growth. The analysis of boiling has been addressed by computer simulations, which employ methods for approximating
mass and
heat transfer at the interface.
However, most simulations make assumptions that could adversely affect the prediction of the thermal and dynamic fluid behavior near the bubble-edge. These assumptions include: (i) computation of
mass transfer with local temperature differences or with temperature gradients at cell-centers rather than with temperature gradients at the interface, (ii) modified discretization schemes at neighboring-cells or a transition region to account for the interface saturation temperature, and (iii) interface smearing or distribution of
mass transfer into multiple cells around the interface to prevent interface deformations.
The present work proposes methods to perform a simulation of nucleate boiling. The proposed methods compute
mass transfer with temperature gradients at the interface, account for the interface saturation temperature, and
model a sharp interface (interface within one cell) with
mass transfer only at interface-cells. The proposed methods lead to a more realistic representation of the
heat and
mass transfer at the interface. Results of the simulation are in excellent agreement with theory on planar interface evaporation and growth of spherical bubbles in superheated liquid. In addition,
numerical bubble growth rates compare well with experimental data on single bubble nucleation over a heated surface. The simulation of nucleate boiling with water and a 6.2 K wall superheat reveals large
heat transfer coefficients over a 200 um distance from the interface. In addition, analyses of the wall shear stress indicate an influence region of two-times the departure bubble diameter.
Advisors/Committee Members: Satish G. Kandlikar.
Subjects/Keywords: Boiling; Heat transfer; Interface; Mass transfer; Multiphase; Simulation
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Chicago ·
MLA ·
Vancouver ·
CSE |
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APA (6th Edition):
Perez-Raya, I. B. (2018). Numerical Investigation of Heat and Mass Transfer Phenomena in Boiling. (Doctoral Dissertation). Rochester Institute of Technology. Retrieved from https://scholarworks.rit.edu/theses/9829
Chicago Manual of Style (16th Edition):
Perez-Raya, Isaac Bernabe. “Numerical Investigation of Heat and Mass Transfer Phenomena in Boiling.” 2018. Doctoral Dissertation, Rochester Institute of Technology. Accessed March 06, 2021.
https://scholarworks.rit.edu/theses/9829.
MLA Handbook (7th Edition):
Perez-Raya, Isaac Bernabe. “Numerical Investigation of Heat and Mass Transfer Phenomena in Boiling.” 2018. Web. 06 Mar 2021.
Vancouver:
Perez-Raya IB. Numerical Investigation of Heat and Mass Transfer Phenomena in Boiling. [Internet] [Doctoral dissertation]. Rochester Institute of Technology; 2018. [cited 2021 Mar 06].
Available from: https://scholarworks.rit.edu/theses/9829.
Council of Science Editors:
Perez-Raya IB. Numerical Investigation of Heat and Mass Transfer Phenomena in Boiling. [Doctoral Dissertation]. Rochester Institute of Technology; 2018. Available from: https://scholarworks.rit.edu/theses/9829
3.
Sagadin, Gregor.
Večfazni numerični model razpršilnega sušenja suspenzije zeolit - voda.
Degree: 2014, Univerza v Mariboru
URL: https://dk.um.si/IzpisGradiva.php?id=44859
;
https://dk.um.si/Dokument.php?id=65141&dn=
;
https://plus.si.cobiss.net/opac7/bib/18010390?lang=sl
► V nalogi je obravnavan proces sušenja poroznega delca, sestavljenega iz omočenih kristalov zeolita 4A v razmerah, ki prevladujejo v razpršilnem sušilniku. Obstoječi numerični modeli v…
(more)
▼ V nalogi je obravnavan proces sušenja poroznega delca, sestavljenega iz omočenih kristalov zeolita 4A v razmerah, ki prevladujejo v razpršilnem sušilniku. Obstoječi numerični modeli v inženirskih programskih paketih obravnavajo vso vlago v delcu kot površinsko sušenje pa kot enostopenjsko, kar lahko vodi do netočnih in nepopolnih rezultatov. V želji po nadgradnji obstoječih numeričnih modelov je bil razvit model za večstopenjsko sušenje poroznega delca. Le-ta upošteva tudi kristalno vezano vlago, ki v procesu sušenja mokrega jedra prehaja skozi osušeno skorjo. Za opis prehoda vlage skozi osušeno skorjo v drugi stopnji sušenja je bil uporabljen model enostranske Stefanove difuzije, med tem ko je bila tretja stopnja sušenja razvita na osnovi karakteristik materiala, določenih s termo gravimetrično analizo. S pridobljenimi rezultati iz numeričnih simulacij je bila pripravljena primerjava z eksperimentalno pridobljenimi rezultati, ki je pokazala uporabnost ter fizikalno pravilnost uporabljenega numeričnega modela večstopenjskega sušenja.
The contribution deals with drying of a porous particle, composed of wet zeolite 4A crystals, in the conditions prevailing inside a spray dryer. The existing numerical models within the engineering codes consider the moisture as a surface attached liquid and drying as one stage drying, which are leading to possible inaccuracies and incompleteness of computational results. Therefore, In view of upgrading the existing numerical models, a multi-phase drying model for drying of a porous particle was developed. It includes also the crystalline moisture, which in the drying process diffuses through the dried outer core of the particle. In the latter case, the Stefan type of mass transfer in form of one sided diffusion is used in second stage of drying while third stage of drying was developed on the basis of material characteristics, set by thermo gravimetric analyses. The results obtained from the numerical model were compared with experimental results, which show the applicability and physical correctness of the proposed model.
Advisors/Committee Members: Hriberšek, Matjaž.
Subjects/Keywords: Zeolit; Razpršilno sušenje; Večfazni numerični model; Računalniška dinamika tekočin; Prenos toplote in snovi; Zeolite; Spray drying; Multiphase numerical model; Computer fluid dynamics; Heat and mass transfer; info:eu-repo/classification/udc/519.6:[532.72:536.24]:66.074(043.3)
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Sagadin, G. (2014). Večfazni numerični model razpršilnega sušenja suspenzije zeolit - voda. (Doctoral Dissertation). Univerza v Mariboru. Retrieved from https://dk.um.si/IzpisGradiva.php?id=44859 ; https://dk.um.si/Dokument.php?id=65141&dn= ; https://plus.si.cobiss.net/opac7/bib/18010390?lang=sl
Chicago Manual of Style (16th Edition):
Sagadin, Gregor. “Večfazni numerični model razpršilnega sušenja suspenzije zeolit - voda.” 2014. Doctoral Dissertation, Univerza v Mariboru. Accessed March 06, 2021.
https://dk.um.si/IzpisGradiva.php?id=44859 ; https://dk.um.si/Dokument.php?id=65141&dn= ; https://plus.si.cobiss.net/opac7/bib/18010390?lang=sl.
MLA Handbook (7th Edition):
Sagadin, Gregor. “Večfazni numerični model razpršilnega sušenja suspenzije zeolit - voda.” 2014. Web. 06 Mar 2021.
Vancouver:
Sagadin G. Večfazni numerični model razpršilnega sušenja suspenzije zeolit - voda. [Internet] [Doctoral dissertation]. Univerza v Mariboru; 2014. [cited 2021 Mar 06].
Available from: https://dk.um.si/IzpisGradiva.php?id=44859 ; https://dk.um.si/Dokument.php?id=65141&dn= ; https://plus.si.cobiss.net/opac7/bib/18010390?lang=sl.
Council of Science Editors:
Sagadin G. Večfazni numerični model razpršilnega sušenja suspenzije zeolit - voda. [Doctoral Dissertation]. Univerza v Mariboru; 2014. Available from: https://dk.um.si/IzpisGradiva.php?id=44859 ; https://dk.um.si/Dokument.php?id=65141&dn= ; https://plus.si.cobiss.net/opac7/bib/18010390?lang=sl

New Jersey Institute of Technology
4.
Patel, Rajeshkumar.
Modeling of non-uniform hydrodynamics and catalytic reaction in a solids-laden riser.
Degree: PhD, Mechanical and Industrial Engineering, 2011, New Jersey Institute of Technology
URL: https://digitalcommons.njit.edu/dissertations/261
► The riser reactors are widely used in a variety of industrial applications such as polymerization, coal combustion and petroleum refinery because of the strong…
(more)
▼ The riser reactors are widely used in a variety of industrial applications such as polymerization, coal combustion and petroleum refinery because of the strong mixing of gas and solids that yields high
heat and
mass transfer rates, and reaction rates. In a Fluid Catalytic Cracking (FCC) process, the performance of riser reactor is strongly dependent on the interaction between the fluid and catalysts, since the reaction takes place on the active surface of the catalysts. This is why, the local coupling between hydrodynamics and reaction kinetics is critical to the development of riser reaction models. The local gas-solids flow structure in riser reactors is highly heterogeneous both in axial and radial direction with back-mixing of catalyst. The radial non-uniform gas-solid flow structure is presented as core-annulus regime, with up-flow of dilute suspension of fresh catalyst and hydrocarbon vapor in the core regime, which is surrounded by dense down-flow of deactivated catalyst in the wall regime. As a result, the reaction characteristics in core and wall regions are strikingly different. The performance of the riser reactor is also strongly dependent on the vaporization and reaction characteristics in the feed injection regime of the riser reactors. From the modeling point of view, to predict the reaction characteristics in riser reactors, there is a need to develop hydrodynamics
model, which can predicts both axial and radial nonuniform distribution of hydrocarbon vapor and catalyst and back-mixing of catalyst. There is also need for reasonable description of mechanistic coupling between nonuniform flow hydrodynamics and the cracking kinetics.
This dissertation is aimed to develop the mechanistic
model for nonuniform hydrodynamics and catalytic reactions in a FCC riser reactor. A mechanistic
model for
multiphase flow interactions, vaporization of droplets and reactions in the feed injection regime is developed for to decide proper input boundary conditions for FCC riser reaction models. The dissertation is divided into the three major parts: 1) development of governing mechanisms and modeling of the axial and radial nonuniform distribution of the gas-solids transport properties in riser reactors 2) development of mechanistic
model that gives a quantitative understanding of the interplay of three phase flow hydrodynamics,
heat/
mass transfer, and cracking reactions in the feed injection regime of a riser reactor 3) modeling of nonuniform hydrodynamics coupled reaction kinetics in the core and wall regime of the riser reactors.
For the modeling of the axial nonuniform distribution of gas-solids transport properties, a new controlling mechanism in terms of impact of pressure gradient along the riser on the particles transport is introduced. A correlation for inter-particle collision force is proposed which can be used for any operation conditions of riser, riser geometry and particle types. For simultaneous modeling of axial and radial nonuniform distribution of the gas-solids phase transport…
Advisors/Committee Members: Chao Zhu, Pushpendra Singh, Teh C. Ho.
Subjects/Keywords: Riser reactor; Heat transfer; Multiphase flow; Mass transfer; Fluid catalytic cracking; Spray jet; Mechanical Engineering
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Patel, R. (2011). Modeling of non-uniform hydrodynamics and catalytic reaction in a solids-laden riser. (Doctoral Dissertation). New Jersey Institute of Technology. Retrieved from https://digitalcommons.njit.edu/dissertations/261
Chicago Manual of Style (16th Edition):
Patel, Rajeshkumar. “Modeling of non-uniform hydrodynamics and catalytic reaction in a solids-laden riser.” 2011. Doctoral Dissertation, New Jersey Institute of Technology. Accessed March 06, 2021.
https://digitalcommons.njit.edu/dissertations/261.
MLA Handbook (7th Edition):
Patel, Rajeshkumar. “Modeling of non-uniform hydrodynamics and catalytic reaction in a solids-laden riser.” 2011. Web. 06 Mar 2021.
Vancouver:
Patel R. Modeling of non-uniform hydrodynamics and catalytic reaction in a solids-laden riser. [Internet] [Doctoral dissertation]. New Jersey Institute of Technology; 2011. [cited 2021 Mar 06].
Available from: https://digitalcommons.njit.edu/dissertations/261.
Council of Science Editors:
Patel R. Modeling of non-uniform hydrodynamics and catalytic reaction in a solids-laden riser. [Doctoral Dissertation]. New Jersey Institute of Technology; 2011. Available from: https://digitalcommons.njit.edu/dissertations/261

University of Texas – Austin
5.
Hubbard, Joshua Allen, 1982-.
Enhanced real-time bioaerosol detection : atmospheric dispersion modeling and characterization of a family of wetted-wall bioaerosol sampling cyclones.
Degree: PhD, Mechanical Engineering, 2009, University of Texas – Austin
URL: http://hdl.handle.net/2152/ETD-UT-2009-08-287
► This work is a multi-scale effort to confront the rapidly evolving threat of biological weapons attacks through improved bioaerosol surveillance, detection, and response capabilities. The…
(more)
▼ This work is a multi-scale effort to confront the rapidly evolving threat of biological weapons attacks through improved bioaerosol surveillance, detection, and response capabilities.
The effects of bioaerosol release characteristics, transport in the atmospheric surface layer, and implications for bioaerosol sampler design and real-time detection were studied to develop risk assessment and modeling tools to enhance our ability to respond to biological weapons attacks. A simple convection-diffusion-sedimentation
model was formulated and used to simulate atmospheric bioaerosol dispersion.
Model predictions suggest particles smaller than 60 micrometers in aerodynamic diameter (AD) are likely to be transported several kilometers from the source. A five fold increase in effective
mass collection rate, a significant bioaerosol detection advantage, is projected for samplers designed to collect particles larger than the traditional limit of 10 micrometers AD when such particles are present in the source distribution.
A family of dynamically scaled wetted-wall bioaerosol sampling cyclones (WWC) was studied to provide bioaerosol sampling capability under various threat scenarios. The effects of sampling environment, i.e. air conditions, and air flow rate on liquid recovery rate and response time were systematically studied. The discovery of a critical liquid input rate parameter enabled the description of all data with self-similar relationships. Empirical correlations were then integrated into system control algorithms to maintain microfluidic liquid output rates ideally suited for advanced biological detection technologies. Autonomous ambient air sampling with an output rate of 25 microliters per minute was achieved with open-loop control. This liquid output rate corresponds to a concentration rate on the order of 2,000,000, a substantial increase with respect to other commercially available bioaerosol samplers.
Modeling of the WWC was performed to investigate the underlying physics of liquid recovery. The set of conservative equations governing
multiphase heat and
mass transfer within the WWC were formulated and solved numerically. Approximate solutions were derived for the special cases of adiabatic and isothermal conditions. The
heat and
mass transfer models were then used to supplement empirical correlations. The resulting semi-empirical models offer enhanced control over liquid concentration factor and further enable the WWC to be deployed as an autonomous bioaerosol sampler.
Advisors/Committee Members: Haglund, John S. (advisor), Ezekoye, Ofodike A. (advisor), Hall, Matthew J. (committee member), Hidrovo, Carlos H. (committee member), Novoselac, Atila (committee member).
Subjects/Keywords: Bioaerosol sampling and detection; Atmospheric dispersion modeling; Coarse particulate transport; Wetted-wall bioaerosol sampling cyclone; Concentration factor; Numerical multiphase heat and mass transfer model
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Hubbard, Joshua Allen, 1. (2009). Enhanced real-time bioaerosol detection : atmospheric dispersion modeling and characterization of a family of wetted-wall bioaerosol sampling cyclones. (Doctoral Dissertation). University of Texas – Austin. Retrieved from http://hdl.handle.net/2152/ETD-UT-2009-08-287
Chicago Manual of Style (16th Edition):
Hubbard, Joshua Allen, 1982-. “Enhanced real-time bioaerosol detection : atmospheric dispersion modeling and characterization of a family of wetted-wall bioaerosol sampling cyclones.” 2009. Doctoral Dissertation, University of Texas – Austin. Accessed March 06, 2021.
http://hdl.handle.net/2152/ETD-UT-2009-08-287.
MLA Handbook (7th Edition):
Hubbard, Joshua Allen, 1982-. “Enhanced real-time bioaerosol detection : atmospheric dispersion modeling and characterization of a family of wetted-wall bioaerosol sampling cyclones.” 2009. Web. 06 Mar 2021.
Vancouver:
Hubbard, Joshua Allen 1. Enhanced real-time bioaerosol detection : atmospheric dispersion modeling and characterization of a family of wetted-wall bioaerosol sampling cyclones. [Internet] [Doctoral dissertation]. University of Texas – Austin; 2009. [cited 2021 Mar 06].
Available from: http://hdl.handle.net/2152/ETD-UT-2009-08-287.
Council of Science Editors:
Hubbard, Joshua Allen 1. Enhanced real-time bioaerosol detection : atmospheric dispersion modeling and characterization of a family of wetted-wall bioaerosol sampling cyclones. [Doctoral Dissertation]. University of Texas – Austin; 2009. Available from: http://hdl.handle.net/2152/ETD-UT-2009-08-287

RMIT University
6.
Vahaji, S.
Numerical and experimental investigation towards a mechanistic approach for prediction of two-phase gas-liquid flow with and without heat and mass transfer.
Degree: 2016, RMIT University
URL: http://researchbank.rmit.edu.au/view/rmit:161965
► Two-phase gas-liquid flows are prevalent in various industrial applications. In this study, flows both with and without heat and mass transfer are being considered. For…
(more)
▼ Two-phase gas-liquid flows are prevalent in various industrial applications. In this study, flows both with and without heat and mass transfer are being considered. For the former, the application of subcooled boiling flow in vertical channels in low and elevated pressures are investigated numerically. Also, the application of power generation through the expansion of single phase water to two-phase gas-liquid inside the nozzle is investigated experimentally. For the latter, the application of bubbly flow around an underwater vehicle is numerically studied. Modelling subcooled flow boiling in vertical channels requires not only the consideration of the dynamic behaviours of two-phase flow and bubbles undergoing coalescence, breakup and condensation in the bulk subcooled liquid but also the characterisation of the single-phase and local boiling heat transfer phenomena in the near-wall region. In numerical modellings of heat partitioning in the subcooled boiling flow, mostly empirical correlations have been adopted in the literature. A thorough investigation on these correlations reveals that they are mainly bound to very limited range of flow conditions in which the experiments had been carried out. Therefore, in this study, first principal models of the underlying physical phenomena are being considered to enlighten the path for having a potential generic modelling algorithm for prediction of wider range of flow conditions. The influence of pressure on the proposed method for predicting subcooled boiling flows in elevated pressures has also been investigated. Also, the evolution of the bubble size distribution caused by the coalescence and break-up processes in the bulk subcooled liquid is of main interest to numerically investigate its impact on local hydrodynamics. Subsequently, in this study, the performance of six kernels on bubble size distribution is compared to achieve a better insight of the prediction mechanisms. Then, the possibility of utilizing low temperature energy sources as a means of power generation in conversion of single phase flow to two phase flow through nozzles is investigated experimentally. The experimental data provide essential information towards understanding the complex flashing process in the nozzle. The results complement the available data on two phase nozzles for medium to high temperature applications. Finally, an Eulerian-Eulerian two-fluid model coupled with the MUSIG population balance model is adopted to predict the bubble size distribution around a DARPA SUBOFF submarine to investigate the capability of the model in this emerging application.
Subjects/Keywords: Fields of Research; Computational Fluid Dynamics; Heat and Mass Transfer; Multiphase Flow; Population Balance Modeling
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Vahaji, S. (2016). Numerical and experimental investigation towards a mechanistic approach for prediction of two-phase gas-liquid flow with and without heat and mass transfer. (Thesis). RMIT University. Retrieved from http://researchbank.rmit.edu.au/view/rmit:161965
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Vahaji, S. “Numerical and experimental investigation towards a mechanistic approach for prediction of two-phase gas-liquid flow with and without heat and mass transfer.” 2016. Thesis, RMIT University. Accessed March 06, 2021.
http://researchbank.rmit.edu.au/view/rmit:161965.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Vahaji, S. “Numerical and experimental investigation towards a mechanistic approach for prediction of two-phase gas-liquid flow with and without heat and mass transfer.” 2016. Web. 06 Mar 2021.
Vancouver:
Vahaji S. Numerical and experimental investigation towards a mechanistic approach for prediction of two-phase gas-liquid flow with and without heat and mass transfer. [Internet] [Thesis]. RMIT University; 2016. [cited 2021 Mar 06].
Available from: http://researchbank.rmit.edu.au/view/rmit:161965.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Vahaji S. Numerical and experimental investigation towards a mechanistic approach for prediction of two-phase gas-liquid flow with and without heat and mass transfer. [Thesis]. RMIT University; 2016. Available from: http://researchbank.rmit.edu.au/view/rmit:161965
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of South Carolina
7.
Saha, Sudipta.
Numerical Analysis on Convective Cooling Augmented by Evaporative Heat and Mass Transfer for Thermal Power Plant Application.
Degree: Degree ofMSin Mechanical Engineering, Mechanical Engineering, 2019, University of South Carolina
URL: https://scholarcommons.sc.edu/etd/5181
► This thesis work describes a numerical study on the effect of evaporative cooling on the augmentation of forced convective cooling. In recent years, on-demand…
(more)
▼ This thesis work describes a
numerical study on the effect of evaporative cooling on the augmentation of forced convective cooling. In recent years, on-demand phase change boosted cooling has drawn major interest where convective
heat transfer is augmented/aided by evaporative
heat and
mass transport processes. This dual mode (convection and evaporation) cooling method is envisioned to drastically enhance the
heat transfer coefficient where conventional convective cooling has already reached its maximum value and furthermore dry cooling is still a desired objective. A multi- dimensional mathematical
model has been developed to conduct simulations over a range of operating parameters to obtain insight into the ‘hybrid’ system where phase change process and convection both contribute to the
heat transfer process. The system being modeled consists of a thin liquid water film that undergoes evaporation as a result of being exposed to a prescribed
heat flux and laminar convective flow condition. The mathematical
model utilized comprises of coupled conservation equations of
mass, species, momentum and energy for the convection-evaporation domain (gaseous), and only
mass and energy conservation being resolved in the liquid film domain, together with a moving mesh to resolve the receding liquid film. Predictions from the simulations indicate that in comparison to pure forced convection cooling, under convective- evaporative conditions the overall
heat transfer coefficient is increased by a factor of ~ 5, where evaporation alone contributes to 80% - 90% of the overall performance. For a fixed
heat flux, an increase in Reynolds number was found to increase the
heat transfer coefficient and vice versa for film thickness. It has been found that overall
heat transfer coefficient can be enhanced by making the film thinner, since the conducting resistance across the liquid film diminishes as the film thickness is reduced. A critical film thickness has been identified beyond which the conductive resistance becomes dominant and starts to attenuate the thermal performance. Spatiotemporally averaged interface temperature has been found to be increasing with the increase of film thickness, as an evidence of suppressed cooling. A critical Reynolds number is identified beyond which no significant increase in overall
heat transfer coefficient is observed. Furthermore, surface enhancement studies have been conducted with view to assessing its effect on overall thermal performance of convective-evaporative dual mode
heat transfer system. To accomplish that, bottom surface of the evaporating liquid has been modified by introducing circular grooves to promote mixing. A set of parametric study based on enhanced surface structures predicts that surface modification results in a significant reduction in thermal resistance across the liquid film.
.
Advisors/Committee Members: Tanvir Farouk.
Subjects/Keywords: Mechanical Engineering; numerical study; heat transfer; mass transfer; thermal power plant application; cooling augmented
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MLA ·
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APA (6th Edition):
Saha, S. (2019). Numerical Analysis on Convective Cooling Augmented by Evaporative Heat and Mass Transfer for Thermal Power Plant Application. (Thesis). University of South Carolina. Retrieved from https://scholarcommons.sc.edu/etd/5181
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Saha, Sudipta. “Numerical Analysis on Convective Cooling Augmented by Evaporative Heat and Mass Transfer for Thermal Power Plant Application.” 2019. Thesis, University of South Carolina. Accessed March 06, 2021.
https://scholarcommons.sc.edu/etd/5181.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Saha, Sudipta. “Numerical Analysis on Convective Cooling Augmented by Evaporative Heat and Mass Transfer for Thermal Power Plant Application.” 2019. Web. 06 Mar 2021.
Vancouver:
Saha S. Numerical Analysis on Convective Cooling Augmented by Evaporative Heat and Mass Transfer for Thermal Power Plant Application. [Internet] [Thesis]. University of South Carolina; 2019. [cited 2021 Mar 06].
Available from: https://scholarcommons.sc.edu/etd/5181.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Saha S. Numerical Analysis on Convective Cooling Augmented by Evaporative Heat and Mass Transfer for Thermal Power Plant Application. [Thesis]. University of South Carolina; 2019. Available from: https://scholarcommons.sc.edu/etd/5181
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Ottawa
8.
Haelssig, Jan B.
Improving the Energy Efficiency of Ethanol Separation through Process Synthesis and Simulation
.
Degree: 2011, University of Ottawa
URL: http://hdl.handle.net/10393/20100
► Worldwide demand for energy is increasing rapidly, partly driven by dramatic economic growth in developing countries. This growth has sparked concerns over the finite availability…
(more)
▼ Worldwide demand for energy is increasing rapidly, partly driven by dramatic economic growth in developing countries. This growth has sparked concerns over the finite availability of fossil fuels and the impact of their combustion on climate change. Consequently, many recent research efforts have been devoted to the development of renewable fuels and sustainable energy systems. Interest in liquid biofuels, such as ethanol, has been particularly high because these fuels fit into the conventional infrastructure for the transportation sector.
Ethanol is a renewable fuel produced through the anaerobic fermentation of sugars obtained from biomass. However, the relatively high energy demand of its production process is a major factor limiting the usefulness of ethanol as a fuel. Due to the dilute nature of the fermentation product stream and the presence of the ethanol-water azeotrope, the separation processes currently used to recover anhydrous ethanol are particularly inefficient. In fact, the ethanol separation processes account for a large fraction of the total process energy demand.
In the conventional ethanol separation process, ethanol is recovered using several distillation steps combined with a dehydration process. In this dissertation, a new hybrid pervaporation-distillation system, named Membrane Dephlegmation, was proposed and investigated for use in ethanol recovery. In this process, countercurrent vapour-liquid contacting is carried out on the surface of a pervaporation membrane, leading to a combination of distillation and pervaporation effects. It was intended that this new process would lead to improved economics and energy efficiency for the entire ethanol production process.
The Membrane Dephlegmation process was investigated using both numerical and experimental techniques. Multiphase Computational Fluid Dynamics (CFD) was used to study vapour-liquid contacting behaviour in narrow channels and to estimate heat and mass transfer rates. Results from the CFD studies were incorporated into a simplified design model and the Membrane Dephlegmation process was studied numerically. The results indicated that the Membrane Dephlegmation process was more efficient than simple distillation and that the ethanol-water azeotrope could be broken. Subsequently, a pilot-scale experimental system was constructed using commercially available, hydrophilic NaA zeolite membranes. Results obtained from the experimental system confirmed the accuracy of the simulations.
Subjects/Keywords: Ethanol Separation;
Distillation;
Pervaporation;
Membrane Dephlegmation;
Hybrid Separation Processes;
Multiphase CFD;
VOF Interface Tracking;
DNS of Heat and Mass Transfer
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Haelssig, J. B. (2011). Improving the Energy Efficiency of Ethanol Separation through Process Synthesis and Simulation
. (Thesis). University of Ottawa. Retrieved from http://hdl.handle.net/10393/20100
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Haelssig, Jan B. “Improving the Energy Efficiency of Ethanol Separation through Process Synthesis and Simulation
.” 2011. Thesis, University of Ottawa. Accessed March 06, 2021.
http://hdl.handle.net/10393/20100.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Haelssig, Jan B. “Improving the Energy Efficiency of Ethanol Separation through Process Synthesis and Simulation
.” 2011. Web. 06 Mar 2021.
Vancouver:
Haelssig JB. Improving the Energy Efficiency of Ethanol Separation through Process Synthesis and Simulation
. [Internet] [Thesis]. University of Ottawa; 2011. [cited 2021 Mar 06].
Available from: http://hdl.handle.net/10393/20100.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Haelssig JB. Improving the Energy Efficiency of Ethanol Separation through Process Synthesis and Simulation
. [Thesis]. University of Ottawa; 2011. Available from: http://hdl.handle.net/10393/20100
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

NSYSU
9.
Hsu, Yu-lien.
The Study of Heat and Mass Transfer In The Generator For an Absorption Air Conditioning System.
Degree: Master, Mechanical and Electro-Mechanical Engineering, 2012, NSYSU
URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0807112-110320
► This thesis is aimed to study the heat and mass transfer performance of a generator for the absorption cooling system. Both aqueous lithium bromide (LiBr)…
(more)
▼ This thesis is aimed to study the
heat and
mass transfer performance of a generator for the absorption cooling system. Both aqueous lithium bromide (LiBr) and lithium chloride (LiCl) solutions are studied. The generator inlet concentration and outlet concentration are set to 55% and 60%, respectively, for aqueous lithium bromide solution, and 40% and 45%, respectively, for aqueous lithium chloride solution. Therefore, the system of falling film desorption process is studied for the simulation of the generator.
A finite-difference method is applied to numerically simulate the
heat and
mass transfer for a falling film desorption process in the generator. Parameters effects the inlet temperature, the
heat source (wall) temperature, and the vapor pressure consistent with the saturation pressure of the condenser, and the solution flow rate are studied.
The results of the present study provide important design references for absorption cooling systems.
Advisors/Committee Members: none (chair), Ru Yang (committee member), none (chair).
Subjects/Keywords: Lithium bromide; Lithium chloride; Absorption air cooling system; Numerical simulate; Heat and mass transfer; Generator
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Hsu, Y. (2012). The Study of Heat and Mass Transfer In The Generator For an Absorption Air Conditioning System. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0807112-110320
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Hsu, Yu-lien. “The Study of Heat and Mass Transfer In The Generator For an Absorption Air Conditioning System.” 2012. Thesis, NSYSU. Accessed March 06, 2021.
http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0807112-110320.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Hsu, Yu-lien. “The Study of Heat and Mass Transfer In The Generator For an Absorption Air Conditioning System.” 2012. Web. 06 Mar 2021.
Vancouver:
Hsu Y. The Study of Heat and Mass Transfer In The Generator For an Absorption Air Conditioning System. [Internet] [Thesis]. NSYSU; 2012. [cited 2021 Mar 06].
Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0807112-110320.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Hsu Y. The Study of Heat and Mass Transfer In The Generator For an Absorption Air Conditioning System. [Thesis]. NSYSU; 2012. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0807112-110320
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Michigan
10.
Huang, Zhenyu.
Application of the Fundamentals of Heat and Mass Transfer to the Investigation of Wax Deposition in Subsea Pipelines.
Degree: PhD, Chemical Engineering, 2011, University of Michigan
URL: http://hdl.handle.net/2027.42/89634
► The doctoral study focuses on the development of a rigorous understanding of wax deposition using the fundamentals of heat and mass transfer. First, a state-of-the-art…
(more)
▼ The doctoral study focuses on the development of a rigorous understanding of wax deposition using the fundamentals of
heat and
mass transfer. First, a state-of-the-art
model is developed to account for wax deposition experiments with various operating conditions. It is shown that the predicted deposit thickness can be bounded by two physical limits: no precipitation in the oil and instantaneous precipitation in the oil. The most influential input parameter for the deposition
model is the solubility curve of the wax in the oil. A rigorous method was developed to correct previous methods that have over-estimated the amount of precipitating wax molecules. Based on the corrected solubility curve, it was found that the thermal driving force, a term that is frequently highlighted in many deposition studies, is not the best parameter to characterize the driving force for wax deposition. This study found that a more appropriate candidate for predicting the thickness of the wax deposit is the
mass driving force, which reflects the interaction between the
heat transfer and the solubility curve and can cause discrepancies in the trends for the amount of wax deposit with the change of thermal driving force for different oils.
The subsequent portion of this research is devoted to the study of wax deposition in oil/water stratified flow. First, to provide insights of the effect of the presence of water, a 2D wax deposition
model for oil/water channel flow was developed. It was revealed that one had to calculate the change in the oil/water interface position for the correct
mass balances of oil and water. The effect of the presence of water is found to reduce the severity of wax deposition by acting as an additional
heat source to alleviate the cooling of the oil during its transportation in the sub-sea pipelines.
The deposition wax deposition experiments for oil/water stratified flow showed that gelation as another deposition mechanism can be significant at low oil flow rates. The degree of gelation increases with decreasing the shear stress in the oil phase, which corresponds to a thicker deposit with lower wax fraction in the deposit.
Advisors/Committee Members: Fogler, H. Scott (committee member), Kaviany, Massoud (committee member), Monroe, Charles W. (committee member), Ziff, Robert M. (committee member).
Subjects/Keywords: Wax Deposition; Heat and Mass Transfer; Numerical Study; Paraffin; Petroleum Transportation; Chemical Engineering; Engineering
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Huang, Z. (2011). Application of the Fundamentals of Heat and Mass Transfer to the Investigation of Wax Deposition in Subsea Pipelines. (Doctoral Dissertation). University of Michigan. Retrieved from http://hdl.handle.net/2027.42/89634
Chicago Manual of Style (16th Edition):
Huang, Zhenyu. “Application of the Fundamentals of Heat and Mass Transfer to the Investigation of Wax Deposition in Subsea Pipelines.” 2011. Doctoral Dissertation, University of Michigan. Accessed March 06, 2021.
http://hdl.handle.net/2027.42/89634.
MLA Handbook (7th Edition):
Huang, Zhenyu. “Application of the Fundamentals of Heat and Mass Transfer to the Investigation of Wax Deposition in Subsea Pipelines.” 2011. Web. 06 Mar 2021.
Vancouver:
Huang Z. Application of the Fundamentals of Heat and Mass Transfer to the Investigation of Wax Deposition in Subsea Pipelines. [Internet] [Doctoral dissertation]. University of Michigan; 2011. [cited 2021 Mar 06].
Available from: http://hdl.handle.net/2027.42/89634.
Council of Science Editors:
Huang Z. Application of the Fundamentals of Heat and Mass Transfer to the Investigation of Wax Deposition in Subsea Pipelines. [Doctoral Dissertation]. University of Michigan; 2011. Available from: http://hdl.handle.net/2027.42/89634

University of KwaZulu-Natal
11.
Mthethwa, Hloniphile Mildred Sithole.
A numerical study of heat and mass transfer in non-Newtonian nanofluid models.
Degree: 2019, University of KwaZulu-Natal
URL: https://researchspace.ukzn.ac.za/handle/10413/18637
► A theoretical study of boundary layer flow, heat and mass transport in non-Newtonian nanofluids is presented. Because of the diversity in the physical structure and…
(more)
▼ A theoretical study of boundary layer flow,
heat and
mass transport in non-Newtonian
nanofluids is presented. Because of the diversity in the physical structure and properties of
non-Newtonian fluids, it is not possible to describe their behaviour using a single constitutive
model. In the literature, several constitutive models have been proposed to predict the behaviour
and rheological properties of non-Newtonian fluids. The question of interest is how
the fluid physical parameters affect the boundary layer flow, and
heat and
mass transfer in
various nanofluids.
In this thesis, nanofluid models in various geometries and
subject to different boundary
conditions are constructed and analyzed. A range of fluid models from simple to complex
are studied, leading to highly nonlinear and coupled differential equations, which require
advanced
numerical methods for their solution.
This thesis is a conjoin between mathematical modeling of non-Newtonian nanofluid flows
and
numerical methods for solving differential equations. Some recent spectral techniques
for finding
numerical solutions of nonlinear systems of differential equations that
model fluid
flow problems are used. The
numerical methods of primary interest are spectral quasilinearization,
local linearization and bivariate local linearization methods. Consequently, one of
the objectives of this thesis is to test the accuracy, robustness and general validity of these
methods.
The dependency of
heat and
mass transfer, and skin friction coefficients on the physical
parameters is quantified and discussed. Results show that nanofluids and physical parameters
have an important and significant impact on boundary layer flows, and on
heat and
mass
transfer processes.
Advisors/Committee Members: Sibanda, Precious. (advisor), Motsa, Sandile Sydney. (advisor).
Subjects/Keywords: Heat and mass transfer.; Non-Newtonian fluid.; Differential equations.; Numerical analysis.; Nanofluids.; Boundary layer flow.
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Mthethwa, H. M. S. (2019). A numerical study of heat and mass transfer in non-Newtonian nanofluid models. (Thesis). University of KwaZulu-Natal. Retrieved from https://researchspace.ukzn.ac.za/handle/10413/18637
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Mthethwa, Hloniphile Mildred Sithole. “A numerical study of heat and mass transfer in non-Newtonian nanofluid models.” 2019. Thesis, University of KwaZulu-Natal. Accessed March 06, 2021.
https://researchspace.ukzn.ac.za/handle/10413/18637.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Mthethwa, Hloniphile Mildred Sithole. “A numerical study of heat and mass transfer in non-Newtonian nanofluid models.” 2019. Web. 06 Mar 2021.
Vancouver:
Mthethwa HMS. A numerical study of heat and mass transfer in non-Newtonian nanofluid models. [Internet] [Thesis]. University of KwaZulu-Natal; 2019. [cited 2021 Mar 06].
Available from: https://researchspace.ukzn.ac.za/handle/10413/18637.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Mthethwa HMS. A numerical study of heat and mass transfer in non-Newtonian nanofluid models. [Thesis]. University of KwaZulu-Natal; 2019. Available from: https://researchspace.ukzn.ac.za/handle/10413/18637
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
12.
Schiavone, Drew F.
Heat and Mass Transfer in Baled Switchgrass for Storage and Bioconversion Applications.
Degree: 2016, University of Kentucky
URL: https://uknowledge.uky.edu/bae_etds/41
► The temperature and moisture content of biomass feedstocks both play a critical role in minimizing storage and transportation costs, achieving effective bioconversion, and developing relevant…
(more)
▼ The temperature and moisture content of biomass feedstocks both play a critical role in minimizing storage and transportation costs, achieving effective bioconversion, and developing relevant postharvest quality models. Hence, this study characterizes the heat and mass transfer occurring within baled switchgrass through the development of a mathematical model describing the relevant thermal and physical properties of this specific substrate. This mathematical model accounts for the effect of internal heat generation and temperature-induced free convection within the material in order to improve prediction accuracy. Inclusion of these terms is considered novel in terms of similar biomass models.
Two disparate length scales, characterizing both the overall bale structure (global domain) and the individual stems (local domain), are considered with different physical processes occurring on each scale. Material and fluid properties were based on the results of hydraulic conductivity experiments, moisture measurements and thermal analyses that were performed using the constant head method, TDR-based sensors and dual thermal probes, respectively. The unique contributions made by each of these components are also discussed in terms of their particular application within various storage and bioconversion operations.
Model validation was performed with rectangular bales of switchgrass (102 x 46 x 36 cm3) stored in an environmental chamber with and without partial insulation to control directional heat transfer. Bale temperatures generally exhibited the same trend as ambient air; although initial periods of microbial growth and heat generation were observed. Moisture content uniformly declined during storage, thereby contributing to minimal heat generation in the latter phases of storage.
The mathematical model agreed closely with experimental data for low moisture content levels in terms of describing the temperature and moisture distribution within the material. The inclusion of internal heat generation was found to be necessary for improving the prediction accuracy of the model; particularly in the initial stage of storage. However, the effects of natural convection exhibited minimal contribution to the heat transfer as conduction was observed as the predominate mechanism occurring throughout storage. The results of this study and the newly developed model are expected to enable the maintenance of baled biomass quality during storage and/or high-solids bioconversion.
Subjects/Keywords: drying; heat and mass transfer; numerical modeling; storage; switchgrass; thermophysical properties; Bioresource and Agricultural Engineering
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Schiavone, D. F. (2016). Heat and Mass Transfer in Baled Switchgrass for Storage and Bioconversion Applications. (Doctoral Dissertation). University of Kentucky. Retrieved from https://uknowledge.uky.edu/bae_etds/41
Chicago Manual of Style (16th Edition):
Schiavone, Drew F. “Heat and Mass Transfer in Baled Switchgrass for Storage and Bioconversion Applications.” 2016. Doctoral Dissertation, University of Kentucky. Accessed March 06, 2021.
https://uknowledge.uky.edu/bae_etds/41.
MLA Handbook (7th Edition):
Schiavone, Drew F. “Heat and Mass Transfer in Baled Switchgrass for Storage and Bioconversion Applications.” 2016. Web. 06 Mar 2021.
Vancouver:
Schiavone DF. Heat and Mass Transfer in Baled Switchgrass for Storage and Bioconversion Applications. [Internet] [Doctoral dissertation]. University of Kentucky; 2016. [cited 2021 Mar 06].
Available from: https://uknowledge.uky.edu/bae_etds/41.
Council of Science Editors:
Schiavone DF. Heat and Mass Transfer in Baled Switchgrass for Storage and Bioconversion Applications. [Doctoral Dissertation]. University of Kentucky; 2016. Available from: https://uknowledge.uky.edu/bae_etds/41

University of Alberta
13.
Ding, Dan.
Characterizing the Performance of a Single-layer Fabric
System through a Heat and Mass Transfer Model.
Degree: MS, Department of Mechanical Engineering, 2010, University of Alberta
URL: https://era.library.ualberta.ca/files/jm214q650
► A mathematical model is developed to study the coupled heat and moisture transfer through a fabric system that consists of a single layer of fabric…
(more)
▼ A mathematical model is developed to study the coupled
heat and moisture transfer through a fabric system that consists of
a single layer of fabric and an air gap. Properties of air and
moisture are sensitive to temperature and hence are assumed to be
functions of local temperature. Therefore the model is applicable
to a broad range of boundary conditions. A numerical scheme is
proposed to solve the distributions of temperature and moisture
concentration throughout the layers, from which the thermal and
evaporative resistances of the fabric system can be evaluated.
Experiments are conducted for two particular fabrics using a
sweating guarded hotplate, and the data show good agreement with
the model predictions. Using this model, the effects of parameters
in environmental conditions, air gap and material properties on the
thermal and evaporative resistances are studied. This work provides
fundamental basis for the optimization of garment fit and material
properties to achieve good performance for the clothing
system.
Subjects/Keywords: thermal resistance; heat and mass transfer model; evaporative resistance; single-layer fabric system
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Ding, D. (2010). Characterizing the Performance of a Single-layer Fabric
System through a Heat and Mass Transfer Model. (Masters Thesis). University of Alberta. Retrieved from https://era.library.ualberta.ca/files/jm214q650
Chicago Manual of Style (16th Edition):
Ding, Dan. “Characterizing the Performance of a Single-layer Fabric
System through a Heat and Mass Transfer Model.” 2010. Masters Thesis, University of Alberta. Accessed March 06, 2021.
https://era.library.ualberta.ca/files/jm214q650.
MLA Handbook (7th Edition):
Ding, Dan. “Characterizing the Performance of a Single-layer Fabric
System through a Heat and Mass Transfer Model.” 2010. Web. 06 Mar 2021.
Vancouver:
Ding D. Characterizing the Performance of a Single-layer Fabric
System through a Heat and Mass Transfer Model. [Internet] [Masters thesis]. University of Alberta; 2010. [cited 2021 Mar 06].
Available from: https://era.library.ualberta.ca/files/jm214q650.
Council of Science Editors:
Ding D. Characterizing the Performance of a Single-layer Fabric
System through a Heat and Mass Transfer Model. [Masters Thesis]. University of Alberta; 2010. Available from: https://era.library.ualberta.ca/files/jm214q650

Virginia Tech
14.
Karunarathne, Sampath Ashoka.
Compartmental Process-based Model for Estimating Ammonia Emission from Stored Scraped Liquid Dairy Manure.
Degree: PhD, Biological Systems Engineering, 2017, Virginia Tech
URL: http://hdl.handle.net/10919/86533
► The biogeochemical processes responsible for production and emission of ammonia from stored liquid dairy manure are governed by environmental factors (e.g. manure temperature, moisture) and…
(more)
▼ The biogeochemical processes responsible for production and emission of ammonia from stored liquid dairy manure are governed by environmental factors (e.g. manure temperature, moisture) and manure characteristics (e.g. total ammoniacal nitrogen concentration, pH). These environmental factors and manure characteristics vary spatially as a result of spatially heterogeneous physical, chemical, and biological properties of manure. Existing process-based models used for estimating ammonia emission consider stored manure as a homogeneous system and do not consider these spatial variations leading to inaccurate estimations. In this study, a one-dimensional compartmental biogeochemical
model was developed to (i) estimate spatial variation of temperature and substrate concentration (ii) estimate spatial variations and rates of biogeochemical processes, and (iii) estimate production and emission of ammonia from stored scraped liquid dairy manure.
A one-dimension compartmentalized modeling approach was used whereby manure storage is partitioned into several sections in vertical domain assuming that the conditions are spatially uniform within the horizontal domain. Spatial variation of temperature and substrate concentration were estimated using established principles of
heat and
mass transfer. Pertinent biogeochemical processes were assigned to each compartment to estimate the production and emission of ammonia.
Model performance was conducted using experimental data obtained from National Air Emissions Monitoring Study conducted by the United States Environmental Protection Agency. A sensitivity analysis was performed and air temperature, manure pH, wind speed, and manure total ammoniacal nitrogen concentration were identified as the most sensitive
model inputs. The
model was used to estimate ammonia emission from a liquid dairy manure storage of a dairy farm located in Rockingham and Franklin counties in Virginia. Ammonia emission was estimated under different management and weather scenarios: two different manure storage periods from November to April and May to October using historical weather data of the two counties. Results suggest greater ammonia emissions and manure nitrogen loss for the manure storage period in warm season from May to October compared to the storage period in cold season from November to April.
Advisors/Committee Members: Ogejo, Jactone Arogo (committeechair), Chung, Matthias (committee member), Easton, Zachary (committee member), Sridhar, Venkataramana (committee member).
Subjects/Keywords: Compartmental process-based model; dairy manure; ammonia; biogeochemistry; heat and mass transfer; manure storage
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Karunarathne, S. A. (2017). Compartmental Process-based Model for Estimating Ammonia Emission from Stored Scraped Liquid Dairy Manure. (Doctoral Dissertation). Virginia Tech. Retrieved from http://hdl.handle.net/10919/86533
Chicago Manual of Style (16th Edition):
Karunarathne, Sampath Ashoka. “Compartmental Process-based Model for Estimating Ammonia Emission from Stored Scraped Liquid Dairy Manure.” 2017. Doctoral Dissertation, Virginia Tech. Accessed March 06, 2021.
http://hdl.handle.net/10919/86533.
MLA Handbook (7th Edition):
Karunarathne, Sampath Ashoka. “Compartmental Process-based Model for Estimating Ammonia Emission from Stored Scraped Liquid Dairy Manure.” 2017. Web. 06 Mar 2021.
Vancouver:
Karunarathne SA. Compartmental Process-based Model for Estimating Ammonia Emission from Stored Scraped Liquid Dairy Manure. [Internet] [Doctoral dissertation]. Virginia Tech; 2017. [cited 2021 Mar 06].
Available from: http://hdl.handle.net/10919/86533.
Council of Science Editors:
Karunarathne SA. Compartmental Process-based Model for Estimating Ammonia Emission from Stored Scraped Liquid Dairy Manure. [Doctoral Dissertation]. Virginia Tech; 2017. Available from: http://hdl.handle.net/10919/86533

NSYSU
15.
Lu, Shao-Yu.
A Study of Heat and Mass Transfer In A Falling Wavy Film Generator for the Absorption Air Conditioning System.
Degree: Master, Mechanical and Electro-Mechanical Engineering, 2015, NSYSU
URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0631115-105346
► This thesis is aimed to study the heat and mass transfer performance of a generator for the absorption cooling system using lithium bromide/water solutions. A…
(more)
▼ This thesis is aimed to study the
heat and
mass transfer performance of a generator for the absorption cooling system using lithium bromide/water solutions. A two-dimensional
numerical simulation has been performed in order to investigate
heat and
mass transfer in desorption process, for a wavy film flowing down on a vertical wall in generator.
Desorption rate is depending on the parameters ,including inlet temperature,
heat source (wall) temperature, vapor pressure consistent with the saturation pressure of the condenser and solution flow rate.
Results are compared with the results of smooth film desorption process. As espected the desorption rate of the wavy film is higher. The desorption rate increases with reducing vapor pressure, increasing
heat source temperature and increasing Reynolds number. The results of the present study provide important design references for absorption cooling systems.
Advisors/Committee Members: Jen-Jyh Hwang (chair), Ru Yang (committee member), Chien-Yuh Yang (chair), Pey-Shey Wu (chair).
Subjects/Keywords: Wavy falling film; Generator; Numerical simulate; Lithium bromide; Heat and mass transfer; Absorption air cooling system
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APA (6th Edition):
Lu, S. (2015). A Study of Heat and Mass Transfer In A Falling Wavy Film Generator for the Absorption Air Conditioning System. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0631115-105346
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Lu, Shao-Yu. “A Study of Heat and Mass Transfer In A Falling Wavy Film Generator for the Absorption Air Conditioning System.” 2015. Thesis, NSYSU. Accessed March 06, 2021.
http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0631115-105346.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Lu, Shao-Yu. “A Study of Heat and Mass Transfer In A Falling Wavy Film Generator for the Absorption Air Conditioning System.” 2015. Web. 06 Mar 2021.
Vancouver:
Lu S. A Study of Heat and Mass Transfer In A Falling Wavy Film Generator for the Absorption Air Conditioning System. [Internet] [Thesis]. NSYSU; 2015. [cited 2021 Mar 06].
Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0631115-105346.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Lu S. A Study of Heat and Mass Transfer In A Falling Wavy Film Generator for the Absorption Air Conditioning System. [Thesis]. NSYSU; 2015. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0631115-105346
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Western Ontario
16.
Khan, Furqan A.
A Model for Complex Heat and Mass Transport Involving Porous Media with Related Applications.
Degree: 2016, University of Western Ontario
URL: https://ir.lib.uwo.ca/etd/3659
► Heat and mass transfer involving porous media is prevalent in, for example, air-conditioning, drying, food storage, and chemical processing. Such applications require non-equilibrium heat and…
(more)
▼ Heat and mass transfer involving porous media is prevalent in, for example, air-conditioning, drying, food storage, and chemical processing. Such applications require non-equilibrium heat and mass (or moisture) transfer modeling inside porous media in conjugate fluid/porous/solid framework. Moreover, modeling of turbulence and turbulent heat and mass transfer becomes essential for many applications. A comprehensive literature review shows a scarcity of models having such capabilities. In this respect, the objectives of the present thesis are to: i) develop a formulation that simulates non-equilibrium heat and mass transfer in conjugate fluid/porous/solid framework, ii) demonstrate the capabilities of the developed formulation by simulating complex related problems, and iii) extend the developed model to such class of problems that involve turbulence and turbulent heat and mass transfer. To develop the required formulation, we first specify transport equations for each region. In the fluid region, mass, momentum, energy, and water vapour transport equations are solved to model flow and energy of moist air-vapour mixture. The volume-averaged version of these equations form the model for the fluid-constituent of porous media, while the transport equations of energy and water mass fraction are solved inside the solid-constituent of porous media and solid region. Mathematical conditions are developed at all the interfaces to ensure smooth transport of relevant quantities across the interfaces. The developed formulation is demonstrated and validated by simulating the problems of evaporative cooling and convective drying of wet porous materials. In this respect, each simulated case demonstrates critical aspects of the developed formulation. Moreover, the simulated cases are found to be in excellent agreement with experimental data. The developed formulation is extended to turbulent flow regimes often encountered in heat and mass transfer problems related to food stacks. In this respect, the closure is obtained for the macroscopic turbulence and turbulent non-equilibrium heat and mass transfer model inside porous media composed of randomly packed spheres. The closure is obtained by simulating the problem at the pore-level scale of a bed of randomly-packed spheres. Lastly, the closure results are presented in the form of power law-based correlations to be utilized in the macroscopic model.
Subjects/Keywords: Heat transfer; mass transfer; porous media; computational fluid dynamics (CFD); conjugate domains; convective drying; turbulence modeling; model closure; Computational Engineering; Heat Transfer, Combustion; Thermodynamics
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MLA ·
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APA (6th Edition):
Khan, F. A. (2016). A Model for Complex Heat and Mass Transport Involving Porous Media with Related Applications. (Thesis). University of Western Ontario. Retrieved from https://ir.lib.uwo.ca/etd/3659
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Khan, Furqan A. “A Model for Complex Heat and Mass Transport Involving Porous Media with Related Applications.” 2016. Thesis, University of Western Ontario. Accessed March 06, 2021.
https://ir.lib.uwo.ca/etd/3659.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Khan, Furqan A. “A Model for Complex Heat and Mass Transport Involving Porous Media with Related Applications.” 2016. Web. 06 Mar 2021.
Vancouver:
Khan FA. A Model for Complex Heat and Mass Transport Involving Porous Media with Related Applications. [Internet] [Thesis]. University of Western Ontario; 2016. [cited 2021 Mar 06].
Available from: https://ir.lib.uwo.ca/etd/3659.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Khan FA. A Model for Complex Heat and Mass Transport Involving Porous Media with Related Applications. [Thesis]. University of Western Ontario; 2016. Available from: https://ir.lib.uwo.ca/etd/3659
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
17.
WU ZHONGHUA.
Mathematical Modeling of Pulse Combustion and It's applications to innovative thermal drying techniques.
Degree: 2007, National University of Singapore
URL: http://scholarbank.nus.edu.sg/handle/10635/13328
Subjects/Keywords: Heat and mass transfer; Impingement drying; Numerical model; Pulse combustion; Spray drying; Spouted bed
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
ZHONGHUA, W. (2007). Mathematical Modeling of Pulse Combustion and It's applications to innovative thermal drying techniques. (Thesis). National University of Singapore. Retrieved from http://scholarbank.nus.edu.sg/handle/10635/13328
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
ZHONGHUA, WU. “Mathematical Modeling of Pulse Combustion and It's applications to innovative thermal drying techniques.” 2007. Thesis, National University of Singapore. Accessed March 06, 2021.
http://scholarbank.nus.edu.sg/handle/10635/13328.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
ZHONGHUA, WU. “Mathematical Modeling of Pulse Combustion and It's applications to innovative thermal drying techniques.” 2007. Web. 06 Mar 2021.
Vancouver:
ZHONGHUA W. Mathematical Modeling of Pulse Combustion and It's applications to innovative thermal drying techniques. [Internet] [Thesis]. National University of Singapore; 2007. [cited 2021 Mar 06].
Available from: http://scholarbank.nus.edu.sg/handle/10635/13328.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
ZHONGHUA W. Mathematical Modeling of Pulse Combustion and It's applications to innovative thermal drying techniques. [Thesis]. National University of Singapore; 2007. Available from: http://scholarbank.nus.edu.sg/handle/10635/13328
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
18.
Ouhsaine, Lahoucine.
Modélisation et simulation de l’intégration des systèmes combinés PV-thermiques aux bâtiments basée sur une approche d’ordre réduit en représentation d’état : Modelling and simulation of buildings integrated PV/T systems : State-space-based reduced order modelling approach.
Degree: Docteur es, Énergie et mécanique, 2018, Université de Lorraine; Université Abdelmalek Essaâdi (Tétouan)
URL: http://www.theses.fr/2018LORR0259
► Cette thèse porte sur le développement d’une approche pratique de modélisation/simulation des systèmes solaires combinés Photovoltaïques/Thermiques PV/T. Il s’agit d’une approche basée sur un modèle…
(more)
▼ Cette thèse porte sur le développement d’une approche pratique de modélisation/simulation des systèmes solaires combinés Photovoltaïques/Thermiques PV/T. Il s’agit d’une approche basée sur un modèle d’ordre réduit en représentation d’état (ORRE). En effet, les systèmes solaires thermiques, électriques et combinés intégrés aux bâtiments possèdent des spécificités permettant de s’affranchir des méthodes numériques classiques (mécanique des fluides numérique et thermique numérique). Ces méthodes sont réputées dans le domaine de l’aérodynamique, de l’aéraulique…etc. Par contre, dans le domaine du mix-énergétique tels que celui considéré dans ce mémoire, l’application directe de ce modèle peut conduire à des dépassements des capacités mémoire ou des temps de calcul exorbitants. Une alternative est de développer des méthodes adaptées au problème physique considéré, en traitant l’aspect multi-physique toute en restant dans une taille de données raisonnable et du temps de calcul réduit. La méthodologie de modélisation consiste à réduire les dimensions des équations qui régissent le problème. En se basant sur la symétrie du système, puis en découpant le système en zones de contrôle basées sur une valeur moyenne gouvernée par les nombres adimensionnels de Biot (Bi) et de Fourier (Fo). Les résultats obtenus en fonctionnement dynamique pourront nous fournir des paramètres de sorties, plus particulièrement, les rendements électrique, thermique et la puissance de circulation du fluide caloporteur. L’avantage de l’approche proposée réside dans la simplification du modèle résultant, qui est représenté par un seul système d’équations algébriques en représentation d’état regroupant tous les éléments physiques du système en fonctionnement dynamique (conditions aux limites variables dans le temps). Ce modèle regroupe la variable fondamentale qui est la température, et les deux types de contrôle et de conception. De plus, le modèle d’ORRE est intégrable dans le fonctionnement en temps réel des systèmes PV/T intégrés aux bâtiments (PV/T-Bât) afin d’accompagner leurs régulation et gestion des flux mise en jeu. Le modèle ainsi proposé a fait l’objet d’une validation où les résultats numériques ont été comparés aux résultats expérimentaux. En effet, quatre configurations ont été étudiées et évoquées dans une approche linéaire. Les résultats obtenus montrent une cohérence tolérable entre les résultats expérimentaux, et numériques. Cette cohérence a été évaluée en termes d’incertitude entre les résultats du modèle et le cas étudié expérimentalement. Le cas d’un système non-linéaire a été également abordé. En effet, rares sont les travaux qui ont été publiés mettant en valeur les phénomènes non-linéaires dans les systèmes complexes PV/T-Bât, Ainsi, on a développé avec la même stratégie, des modèles bilinéaires qui modélise le mieux possible le comportement thermique dans les systèmes PV/T-Bât. Une étude d’optimisation du système multi-physique en introduisant une étude paramétrique est menée en terme afin d’étudier la sensibilité des paramètres…
Advisors/Committee Members: El Ganaoui, Mohammed (thesis director), Mimet, Abdelaziz (thesis director).
Subjects/Keywords: Systèmes d'énergie solaire; Modèle mathématique d'ordre réduit; Simulation; Optimisation; Systèmes PV/Th. combinés; Transfert de chaleur et de masse; Solar Energy Systems; Reduced order mathematical model; Numerical simulation; Optimization; PV/T combined systems; Heat and mass transfer; 621.042; 621.47; 621.312 44
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Ouhsaine, L. (2018). Modélisation et simulation de l’intégration des systèmes combinés PV-thermiques aux bâtiments basée sur une approche d’ordre réduit en représentation d’état : Modelling and simulation of buildings integrated PV/T systems : State-space-based reduced order modelling approach. (Doctoral Dissertation). Université de Lorraine; Université Abdelmalek Essaâdi (Tétouan). Retrieved from http://www.theses.fr/2018LORR0259
Chicago Manual of Style (16th Edition):
Ouhsaine, Lahoucine. “Modélisation et simulation de l’intégration des systèmes combinés PV-thermiques aux bâtiments basée sur une approche d’ordre réduit en représentation d’état : Modelling and simulation of buildings integrated PV/T systems : State-space-based reduced order modelling approach.” 2018. Doctoral Dissertation, Université de Lorraine; Université Abdelmalek Essaâdi (Tétouan). Accessed March 06, 2021.
http://www.theses.fr/2018LORR0259.
MLA Handbook (7th Edition):
Ouhsaine, Lahoucine. “Modélisation et simulation de l’intégration des systèmes combinés PV-thermiques aux bâtiments basée sur une approche d’ordre réduit en représentation d’état : Modelling and simulation of buildings integrated PV/T systems : State-space-based reduced order modelling approach.” 2018. Web. 06 Mar 2021.
Vancouver:
Ouhsaine L. Modélisation et simulation de l’intégration des systèmes combinés PV-thermiques aux bâtiments basée sur une approche d’ordre réduit en représentation d’état : Modelling and simulation of buildings integrated PV/T systems : State-space-based reduced order modelling approach. [Internet] [Doctoral dissertation]. Université de Lorraine; Université Abdelmalek Essaâdi (Tétouan); 2018. [cited 2021 Mar 06].
Available from: http://www.theses.fr/2018LORR0259.
Council of Science Editors:
Ouhsaine L. Modélisation et simulation de l’intégration des systèmes combinés PV-thermiques aux bâtiments basée sur une approche d’ordre réduit en représentation d’état : Modelling and simulation of buildings integrated PV/T systems : State-space-based reduced order modelling approach. [Doctoral Dissertation]. Université de Lorraine; Université Abdelmalek Essaâdi (Tétouan); 2018. Available from: http://www.theses.fr/2018LORR0259
19.
Moore, Bryce Kirk.
Gas-liquid flows in adsorbent microchannels.
Degree: MS, Mechanical Engineering, 2013, Georgia Tech
URL: http://hdl.handle.net/1853/47519
► A study of two the sequential displacement of gas and liquid phases in microchannels for eventual application in temperature swing adsorption (TSA) methane purification systems…
(more)
▼ A study of two the sequential displacement of gas and liquid phases in microchannels for eventual application in temperature swing adsorption (TSA) methane purification systems was performed. A
model for bulk fluid displacement in 200 m channels was developed and validated using data from an air-water flow visualization study performed on glass microchannel test sections with a hydraulic diameter of 203 m. High-speed video recording was used to observe displacement samples at two separate channel locations for both the displacement of gas by liquid and liquid by gas, and for driving pressure gradients ranging from 19 to 450 kPa m-1. Interface velocities, void fractions, and film thicknesses were determined using image analysis software for each of the 63 sample videos obtained.
Coupled 2-D
heat and
mass transfer models were developed to simulate a TSA gas separation process in which impurities in the gas supply were removed through adsorption into adsorbent coated microchannel walls. These models were used to evaluate the impact of residual liquid films on system
mass transfer during the adsorption process. It was determined that for a TSA methane purification system to be effective, it is necessary to purge liquid from the adsorbent channel. This intermediate purge phase will benefit the
mass transfer performance of the adsorption system by removing significant amounts of residual liquid from the channel and by causing the onset of rivulet flow in the channel. The existence of the remaining dry wall area, which is characteristic of the rivulet flow regime, improves system
mass transfer performance in the presence of residual liquid.
The commercial viability of microchannel TSA gas separation systems depends strongly on the ability to mitigate the presence and effects of residual liquid in the adsorbent channels. While the use of liquid
heat transfer fluids in the microchannel structure provides rapid heating and cooling of the adsorbent
mass, the management of residual liquid remains a significant hurdle. In addition, such systems will require reliable prevention of interaction between the adsorbent and the liquid
heat transfer fluid, whether through the development and fabrication of highly selective polymer matrix materials or the use of non-interacting large-molecule liquid
heat transfer fluids. If these hurdles can be successfully addressed, microchannel TSA systems may have the potential to become a competitive technology in large-scale gas separation.
Advisors/Committee Members: Garimella, Srinivas (Committee Chair), Ghiaasiaan, Seyed (Committee Member), Jeter, Sheldon (Committee Member).
Subjects/Keywords: Multiphase flow; Adsorption; Heat transfer; Mass transfer; Separation (Technology); Heat exchangers; Methane
…87
Figure 3.17 Mesh diagram for heat and mass transfer model… …75
Table 3.6
Simulation parameters and properties for heat and mass transfer
modeling… …120
Figure 4.8
Schematic of heat and mass transfer resistances in annular and rivulet
flow… …would be 0.16 m s-1.
Coupled 2-D heat and mass transfer models were developed to simulate a… …geometries desirable for these applications, namely large surface area for heat and mass
transfer…
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Moore, B. K. (2013). Gas-liquid flows in adsorbent microchannels. (Masters Thesis). Georgia Tech. Retrieved from http://hdl.handle.net/1853/47519
Chicago Manual of Style (16th Edition):
Moore, Bryce Kirk. “Gas-liquid flows in adsorbent microchannels.” 2013. Masters Thesis, Georgia Tech. Accessed March 06, 2021.
http://hdl.handle.net/1853/47519.
MLA Handbook (7th Edition):
Moore, Bryce Kirk. “Gas-liquid flows in adsorbent microchannels.” 2013. Web. 06 Mar 2021.
Vancouver:
Moore BK. Gas-liquid flows in adsorbent microchannels. [Internet] [Masters thesis]. Georgia Tech; 2013. [cited 2021 Mar 06].
Available from: http://hdl.handle.net/1853/47519.
Council of Science Editors:
Moore BK. Gas-liquid flows in adsorbent microchannels. [Masters Thesis]. Georgia Tech; 2013. Available from: http://hdl.handle.net/1853/47519
20.
Hasan, Ala Ali.
Performance Analysis of Heat Transfer Processes from Wet and Dry Surfaces: Cooling Towers and Heat Exchangers.
Degree: 2005, Helsinki University of Technology
URL: http://lib.tkk.fi/Diss/2005/isbn9512276348/
► The objective of this work is to study the thermal and hydraulic performance of evaporatively cooled heat exchangers, including closed wet cooling towers, and dry…
(more)
▼ The objective of this work is to study the thermal and hydraulic performance of evaporatively cooled
heat exchangers, including closed wet cooling towers, and dry tube
heat exchangers with various geometries. Applications utilising such equipment exist in almost every thermal process. The investigation includes theoretical analysis, computational approaches, and experimental measurements. In this work, a computational
model is presented for the thermal performance of closed wet cooling towers intended for use in conjunction with chilled ceilings in cooling of buildings. A variable spray water temperature inside the tower is assumed. A prototype tower was subjected to experimental measurements to find its characteristics. Optimisation of the tower geometry and flow rates for specified design conditions is carried out in order to achieve a high value of the coefficient of performance (COP). Results from a global simulation program (including the tower
model, a transient building
model, a chilled ceiling
model, system control etc.) show that closed wet cooling towers can be used with chilled ceilings to achieve acceptable indoor air temperatures in locations having suitable climatic conditions. This is supported by published results from a performance test of an office building using this method of cooling. Simplification of the
model is obtained by assuming a constant temperature for the spray water. The tower performance predicted by the simplified
model and the computational
model shows comparable results. The results of the simplified
model are then incorporated with Computational Fluid Dynamics (CFD) to assess the temperature distribution inside the tower. It is shown that CFD can be implemented to study the effect of air distribution inside the tower on its performance. The effect of introducing plate fins in evaporatively cooled plain circular tubes is experimentally studied. The measurement results show a 92% to 140% increase in the amount of
heat transfer for the finned tubes. This is accompanied by an increase in the pressure drop, so that an indication of the combined thermal hydraulic performance is found to be close for the two geometries. However, it shows higher
heat transfer rates per volume for the finned tubes. The performance of oval tubes in the evaporatively cooled
heat exchanger is then experimentally investigated. The measurement results for the oval tubes show good
heat and
mass transfer characteristics; its average
mass transfer Colburn factor is 89% of that for the circular tubes. Furthermore, it shows low friction factor for the air flow, which is 46% of that for the circular tubes. It is concluded that the tested oval tube is better than the circular tubes in combined thermal hydraulic performance. The features of oval tubes appear clearer in a dry
heat transfer process. Five shapes of dry oval tubes are experimentally investigated in a cross-flow of air. The measurement results for the oval tubes are compared with those for an equivalent circular tube. It is found that the Nusselt…
Advisors/Committee Members: Helsinki University of Technology, Department of Mechanical Engineering, Laboratory of Heating, Ventilating and Air Conditioning.
Subjects/Keywords: cooling tower; heat exchanger; heat transfer; mass transfer; fin; oval
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Hasan, A. A. (2005). Performance Analysis of Heat Transfer Processes from Wet and Dry Surfaces: Cooling Towers and Heat Exchangers. (Thesis). Helsinki University of Technology. Retrieved from http://lib.tkk.fi/Diss/2005/isbn9512276348/
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Hasan, Ala Ali. “Performance Analysis of Heat Transfer Processes from Wet and Dry Surfaces: Cooling Towers and Heat Exchangers.” 2005. Thesis, Helsinki University of Technology. Accessed March 06, 2021.
http://lib.tkk.fi/Diss/2005/isbn9512276348/.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Hasan, Ala Ali. “Performance Analysis of Heat Transfer Processes from Wet and Dry Surfaces: Cooling Towers and Heat Exchangers.” 2005. Web. 06 Mar 2021.
Vancouver:
Hasan AA. Performance Analysis of Heat Transfer Processes from Wet and Dry Surfaces: Cooling Towers and Heat Exchangers. [Internet] [Thesis]. Helsinki University of Technology; 2005. [cited 2021 Mar 06].
Available from: http://lib.tkk.fi/Diss/2005/isbn9512276348/.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Hasan AA. Performance Analysis of Heat Transfer Processes from Wet and Dry Surfaces: Cooling Towers and Heat Exchangers. [Thesis]. Helsinki University of Technology; 2005. Available from: http://lib.tkk.fi/Diss/2005/isbn9512276348/
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Tennessee – Knoxville
21.
Pemberton, Seth Allen.
A Novel Approach to Multiphysics Modeling of Heat and Mass Transfer in Porous Media.
Degree: MS, Mechanical Engineering, 2013, University of Tennessee – Knoxville
URL: https://trace.tennessee.edu/utk_gradthes/2634
► This thesis aims to investigate conjugate heat and mass transfer in porous media with an emphasis on textiles. Both hygroscopic materials, those that absorb…
(more)
▼ This thesis aims to investigate conjugate
heat and
mass transfer in porous media with an emphasis on textiles. Both hygroscopic materials, those that absorb water vapor, and non-hygroscopic materials are examined. A
model was developed that utilizes COMSOL’s equation-based partial differential equation (PDE) interface which allows the user to input any equation(s) to be solved. By the use of experimental and
numerical data each part of the
model, i.e. flow field, gas diffusion, convection and vapor absorption, is verified. The accuracy of the equation-based unsteady flow field is verified by modeling the flow over a circular cylinder and extracting the lift and pressure coefficients. Gaseous diffusion in a porous medium (PM) is shown to agree with volume averaging theory. Steady state convection and diffusion is modeled and reveals the importance of
mass diffusion in PM as well as how changes in material permeability, due to water vapor absorption, affect
heat and
mass transfer. Water vapor absorption yields a dynamic response under transient conditions, which results in significant temperature changes depending on textile fiber properties.
Advisors/Committee Members: Kivanc Ekici, Rao V. Arimilli, Jay I. Frankel.
Subjects/Keywords: heat and mass transfer; porous media; Heat Transfer, Combustion
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Pemberton, S. A. (2013). A Novel Approach to Multiphysics Modeling of Heat and Mass Transfer in Porous Media. (Thesis). University of Tennessee – Knoxville. Retrieved from https://trace.tennessee.edu/utk_gradthes/2634
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Pemberton, Seth Allen. “A Novel Approach to Multiphysics Modeling of Heat and Mass Transfer in Porous Media.” 2013. Thesis, University of Tennessee – Knoxville. Accessed March 06, 2021.
https://trace.tennessee.edu/utk_gradthes/2634.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Pemberton, Seth Allen. “A Novel Approach to Multiphysics Modeling of Heat and Mass Transfer in Porous Media.” 2013. Web. 06 Mar 2021.
Vancouver:
Pemberton SA. A Novel Approach to Multiphysics Modeling of Heat and Mass Transfer in Porous Media. [Internet] [Thesis]. University of Tennessee – Knoxville; 2013. [cited 2021 Mar 06].
Available from: https://trace.tennessee.edu/utk_gradthes/2634.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Pemberton SA. A Novel Approach to Multiphysics Modeling of Heat and Mass Transfer in Porous Media. [Thesis]. University of Tennessee – Knoxville; 2013. Available from: https://trace.tennessee.edu/utk_gradthes/2634
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Texas A&M University
22.
Niedbalski, Nicholas Paul.
Experimental and Theoretical Investigation of a Multiphase Reaction in a Compact Heat Exchanger-Reactor (HEX Reactor).
Degree: PhD, Mechanical Engineering, 2017, Texas A&M University
URL: http://hdl.handle.net/1969.1/165674
► Heat transfer enhancement research has long been concerned with keeping pace to the rapidly increasing cooling demands of high performance electronics. In addition to requiring…
(more)
▼ Heat transfer enhancement research has long been concerned with keeping pace to the rapidly increasing cooling demands of high performance electronics. In addition to requiring the removal of higher
heat fluxes as device miniaturization continues, the operating temperature limits remain essentially the same. The rapid removal of large quantities of low quality
heat presents a formidable challenge to thermal systems engineers. In such applications, single-phase forced convection thermal management (TM) schemes are no longer adequate. High energy density thermophysical phase change materials, such as the boiling of water, have proven capable of handling high
heat fluxes, but suffer the drawback of requiring temperatures that are outside the acceptable range for high-power electronics cooling. Recently, the use of high energy density endothermic chemical reactions as an alternative to thermophysical phase change materials has shown promise. One particularly attractive reaction for thermal management purposes is the endothermic decomposition of ammonium carbamate (AC), due to both its high energy density and comparatively low reaction temperatures that are amenable to electronics cooling.
In this study, we propose to facilitate the development of thermal management systems based on AC (or similar reactions) by a combined experimental and theoretical approach. The objective is to elucidate the combined effect of
heat transfer,
mass transfer, momentum
transfer, and chemical kinetics on the thermal management capabilities of a
heat exchanger-chemical reactor (HEX reactor) utilizing an AC-
heat transfer fluid slurry. A
model to describe the reaction kinetics in the presence of a liquid iii solvent, which is presently lacking the literature, is critical to the design and understanding of thermochemical reaction-based TM systems. Further, this
model must be rooted in a sound theoretical and empirical basis. Currently, there are no published experimental chemical kinetics data for the decomposition of AC in a
heat transfer fluid.
A systematic investigation of the reaction kinetics within the range of temperatures typical for electronics cooling was conducted to obtain real-time calorimetric and species concentration data. Fundamental insights gained from the experimental chemical kinetics study were used to develop a general reaction
model framework for AC decomposition in the presence of a solvent. This
model serves as the source term in the thermal energy conservation equation, which in turn is required to
model and predict HEX reactor performance. The reaction
model parameters were estimated from the experimental results using
numerical optimization and validated at temperature between 55°C and 70°C, concentrations between 25 g/L an 50 g/L, and particle sizes between 800μm and 100μm. A 1-dimensional, multi-phase HEX reactor
model was developed, incorporating the parameterized reaction
model and validated against data from the literature.
In this report, we demonstrate the experimental findings and the subsequent…
Advisors/Committee Members: Banerjee, Debjyoti (advisor), Adams, Marvin (committee member), Petersen, Eric (committee member), Kulatilaka, Waruna (committee member).
Subjects/Keywords: HEX Reactor; Multi-phase; Reacting Flow; Chemical Kinetics; Mathematical Model; Heat Transfer; Mass Transfer; Plate Heat Exchanger; Ammonium Carbamate; Propylene Glycol; Thermal Management
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
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APA (6th Edition):
Niedbalski, N. P. (2017). Experimental and Theoretical Investigation of a Multiphase Reaction in a Compact Heat Exchanger-Reactor (HEX Reactor). (Doctoral Dissertation). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/165674
Chicago Manual of Style (16th Edition):
Niedbalski, Nicholas Paul. “Experimental and Theoretical Investigation of a Multiphase Reaction in a Compact Heat Exchanger-Reactor (HEX Reactor).” 2017. Doctoral Dissertation, Texas A&M University. Accessed March 06, 2021.
http://hdl.handle.net/1969.1/165674.
MLA Handbook (7th Edition):
Niedbalski, Nicholas Paul. “Experimental and Theoretical Investigation of a Multiphase Reaction in a Compact Heat Exchanger-Reactor (HEX Reactor).” 2017. Web. 06 Mar 2021.
Vancouver:
Niedbalski NP. Experimental and Theoretical Investigation of a Multiphase Reaction in a Compact Heat Exchanger-Reactor (HEX Reactor). [Internet] [Doctoral dissertation]. Texas A&M University; 2017. [cited 2021 Mar 06].
Available from: http://hdl.handle.net/1969.1/165674.
Council of Science Editors:
Niedbalski NP. Experimental and Theoretical Investigation of a Multiphase Reaction in a Compact Heat Exchanger-Reactor (HEX Reactor). [Doctoral Dissertation]. Texas A&M University; 2017. Available from: http://hdl.handle.net/1969.1/165674

Texas A&M University
23.
Oh, Sung Hyuk.
Experimental and numerical investigation of turbulent flow and heat (mass) transfer in a two-pass trapezoidal channel with turbulence promoters.
Degree: PhD, Mechanical Engineering, 2009, Texas A&M University
URL: http://hdl.handle.net/1969.1/ETD-TAMU-3198
► Experiments and numerical predictions were conducted to study heat (mass) transfer characteristics in a two-pass trapezoidal channel simulating the cooling passage of a gas turbine…
(more)
▼ Experiments and
numerical predictions were conducted to study
heat (
mass)
transfer characteristics in a two-pass trapezoidal channel simulating the cooling passage of a gas turbine blade. Three different rib configurations were tested for the air entering the smaller cross section of the trapezoidal channel as well as the larger cross section of the trapezoidal channel at four different Reynolds numbers of 9,400, 16,800, 31,800, and 57,200. (+) 60º ribs, (–) 60º ribs and 60º V-shaped ribs were attached on both the top and bottom walls in parallel sequence. A naphthalene sublimation technique was used, and the
heat and
mass transfer analogy was applied to convert the
mass transfer coefficients to
heat transfer coefficients.
Numerical predictions of three-dimensional flow and
heat transfer also were performed for the trapezoidal channel with and without 90º ribs tested by Lee et al. (2007). Reynolds stress turbulence
model (RSM) in the FLUENT CFD code was used to calculate the
heat transfer coefficients and flow fields at Re = 31,800. The results showed that the combined effects of the rib angle, rib orientation, and the sharp 180° turn significantly affected the
heat (
mass)
transfer distributions. The secondary flows induced by the sharp 180° turn and the angled or V-shaped ribs played a very prominent role in
heat (
mass)
transfer enhancements. The
heat (
mass)
transfer enhancements and the pressure drops across the turn for 60° V-shaped ribs had the highest values, then came the case of (+) 60° ribs, and the
heat (
mass)
transfer enhancements and the friction factor ratios for (–) 60º ribs was the lowest. However, comparing (–) 60º ribs with the 90º ribs, (–) 60º ribs produced higher
heat (
mass)
transfer enhancements than the 90º ribs, as results of the secondary flow induced by the (–) 60º ribs. The overall average
heat (
mass)
transfer for the larger inlet cases was always higher than that for the smaller inlet cases in the ribbed trapezoidal channel. Considering the thermal performance comparisons of the (+) 60° ribs, the (–) 60º ribs, and 60° V-shaped ribs for the smaller inlet cases, the highest thermal performance was produced by the (–) 60º ribs, and the 60° V-shaped ribs and the (+) 60° ribs had almost the same levels of the thermal performance since the 60° V-shaped ribs produced the highest
heat (
mass)
transfer enhancement but also produced highest pressure drops. For the larger inlet cases, the (+) 60° ribs produced the highest values, then came the case of the 60° V-shaped ribs, and the thermal performance for the (–) 60º ribs was the lowest. The Reynolds stress
model (RSM) showed well flow fields and
heat transfer distributions but underpredicted average Nusselt number ratios.
Advisors/Committee Members: Lau, Sai Chuen (advisor), Anand, Nagamangala K (committee member), Hassan, Yassin A (committee member), Heffington, Warren M (committee member).
Subjects/Keywords: heat (mass) transfer
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Oh, S. H. (2009). Experimental and numerical investigation of turbulent flow and heat (mass) transfer in a two-pass trapezoidal channel with turbulence promoters. (Doctoral Dissertation). Texas A&M University. Retrieved from http://hdl.handle.net/1969.1/ETD-TAMU-3198
Chicago Manual of Style (16th Edition):
Oh, Sung Hyuk. “Experimental and numerical investigation of turbulent flow and heat (mass) transfer in a two-pass trapezoidal channel with turbulence promoters.” 2009. Doctoral Dissertation, Texas A&M University. Accessed March 06, 2021.
http://hdl.handle.net/1969.1/ETD-TAMU-3198.
MLA Handbook (7th Edition):
Oh, Sung Hyuk. “Experimental and numerical investigation of turbulent flow and heat (mass) transfer in a two-pass trapezoidal channel with turbulence promoters.” 2009. Web. 06 Mar 2021.
Vancouver:
Oh SH. Experimental and numerical investigation of turbulent flow and heat (mass) transfer in a two-pass trapezoidal channel with turbulence promoters. [Internet] [Doctoral dissertation]. Texas A&M University; 2009. [cited 2021 Mar 06].
Available from: http://hdl.handle.net/1969.1/ETD-TAMU-3198.
Council of Science Editors:
Oh SH. Experimental and numerical investigation of turbulent flow and heat (mass) transfer in a two-pass trapezoidal channel with turbulence promoters. [Doctoral Dissertation]. Texas A&M University; 2009. Available from: http://hdl.handle.net/1969.1/ETD-TAMU-3198
24.
Irungu, Simon Maina.
Heat and mass transfer models of the University of Tennessee at Chattanooga distillation column.
Degree: 2012, University of Tennessee – Chattanooga
URL: https://scholar.utc.edu/theses/31
► The distillation column in the University of Tennessee at Chattanooga is a Pyrex glass unit with 12 separation stages, overhead receiver and a reboiler as…
(more)
▼ The distillation column in the University of Tennessee at Chattanooga is a Pyrex glass unit with 12 separation stages, overhead receiver and a reboiler as shown on figure 8. In this thesis, mathematical models that relate to
heat and
mass transfer during a binary distillation of methanol-water mixture are developed and simulated through analytical and
numerical methods [1]. Collections of these models were generated from theoretical correlations which yielded algebraic and differential equations that were solvable simultaneously. [2].
Thermal
transfer due to temperature gradient caused
heat flux through conduction, convection, and radiation respectively [3]. These
heat transfer equations facilitated approximations of the reboiler surface temperature during heating and cooling processes.
Mass transfer was considered during the binary distillation process; where dynamic and steady state
mass transfer models were derived from methanol component’s mole balance. An average relative volatility of 4.0 for the methanol water mixture promoted reparability and
mass transfer during the experimental and modeling processes. [3].
Advisors/Committee Members: Henry, Jim, Thomas, Tricia, Jones, Michael, College of Engineering and Computer Science.
Subjects/Keywords: Distillation apparatus; Heat – Transmission; Heat – Transmission – Mathematical models; Mass transfer; Mass transfer – Mathematical models
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Irungu, S. M. (2012). Heat and mass transfer models of the University of Tennessee at Chattanooga distillation column. (Masters Thesis). University of Tennessee – Chattanooga. Retrieved from https://scholar.utc.edu/theses/31
Chicago Manual of Style (16th Edition):
Irungu, Simon Maina. “Heat and mass transfer models of the University of Tennessee at Chattanooga distillation column.” 2012. Masters Thesis, University of Tennessee – Chattanooga. Accessed March 06, 2021.
https://scholar.utc.edu/theses/31.
MLA Handbook (7th Edition):
Irungu, Simon Maina. “Heat and mass transfer models of the University of Tennessee at Chattanooga distillation column.” 2012. Web. 06 Mar 2021.
Vancouver:
Irungu SM. Heat and mass transfer models of the University of Tennessee at Chattanooga distillation column. [Internet] [Masters thesis]. University of Tennessee – Chattanooga; 2012. [cited 2021 Mar 06].
Available from: https://scholar.utc.edu/theses/31.
Council of Science Editors:
Irungu SM. Heat and mass transfer models of the University of Tennessee at Chattanooga distillation column. [Masters Thesis]. University of Tennessee – Chattanooga; 2012. Available from: https://scholar.utc.edu/theses/31
25.
Liu, Hongwei.
Numerical modeling in geotechnical engineering with applications in cold regions.
Degree: Civil Engineering, 2018, University of Manitoba
URL: http://hdl.handle.net/1993/33212
► The objective of this thesis is to apply thermal analysis, coupled thermo-hydraulic analysis, and fully coupled thermo-hydro-mechanical analysis developed in this research to different engineering…
(more)
▼ The objective of this thesis is to apply thermal analysis, coupled thermo-hydraulic analysis,
and fully coupled thermo-hydro-mechanical analysis developed in this research to different
engineering designs in cold regions. The applications vary from Geothermal Snow-Melting
System Design to Structural and Thermal Integrity of Buried Infrastructure in cold regions.
A feasibility study of geothermal energy pile based snow melting systemwas performed for
six major cities in Canada. The coefficient of performance (COP) of
heat pump is derived
and the number of geothermal piles are determined for each city based on its specific local
geological condition and heating demand.Also, the structural and thermal integrity of buried
infrastructure were studied by performing an optimum design of rigid plastic foam insulations
to protect buried utilities against frost damage and reduce the excavation cost. Furthermore, the effect of frost heave on the
structural integrity of pavement structure and culverts are assessed.
Advisors/Committee Members: Maghoul, Pooneh (Civil Engineering) (supervisor), Shalaby, Ahmed (Civil Engineering) .
Subjects/Keywords: Snow melting; heat and mass transfer; Coupled thermo-hydro-mechanical model; Geothermal energy pile; Frost heave
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Liu, H. (2018). Numerical modeling in geotechnical engineering with applications in cold regions. (Masters Thesis). University of Manitoba. Retrieved from http://hdl.handle.net/1993/33212
Chicago Manual of Style (16th Edition):
Liu, Hongwei. “Numerical modeling in geotechnical engineering with applications in cold regions.” 2018. Masters Thesis, University of Manitoba. Accessed March 06, 2021.
http://hdl.handle.net/1993/33212.
MLA Handbook (7th Edition):
Liu, Hongwei. “Numerical modeling in geotechnical engineering with applications in cold regions.” 2018. Web. 06 Mar 2021.
Vancouver:
Liu H. Numerical modeling in geotechnical engineering with applications in cold regions. [Internet] [Masters thesis]. University of Manitoba; 2018. [cited 2021 Mar 06].
Available from: http://hdl.handle.net/1993/33212.
Council of Science Editors:
Liu H. Numerical modeling in geotechnical engineering with applications in cold regions. [Masters Thesis]. University of Manitoba; 2018. Available from: http://hdl.handle.net/1993/33212

Université du Luxembourg
26.
Hoffmann, Florian.
Modelling Heterogeneous Reactions In Packed Beds and Its Application to The Upper Shaft of A Blast Furnace.
Degree: 2014, Université du Luxembourg
URL: http://orbilu.uni.lu/handle/10993/16663
► Heterogeneous reactions in packed beds such as iron ore reduction or gasification of coke in a blast furnace involve various aspects of thermodynamics, fluid dynamics,…
(more)
▼ Heterogeneous reactions in packed beds such as iron ore reduction or gasification of coke in
a blast furnace involve various aspects of thermodynamics, fluid dynamics, chemistry and
physics. Unfortunately, inaccessible and hostile process environments make it very difficult
to gain insights into such reactors and to operate the industrial processes. To address this
problem extensive research has been undertaken in the past to develop
numerical methods
and models. However, little effort has been made to describe the complex thermochemical
processes inside such reactors starting from the particle and especially intra-particle scale.
The objectives of this thesis are to introduce a coupled approach which allows for the
physical and chemical interaction of a granular material with a surrounding gas phase and
to apply it to the reduction processes in the upper shaft of a blast furnace. Furthermore,
a suitable
model to investigate the gas-solid thermochemical interaction within a single
particle and within a packed bed of particles was to be established. Thus, the classical
discrete element method (DEM) was extended by thermodynamic state variables such as
temperature, composition and chemical reactions. In addition, a coupling between the
particulate phase and a continuous gas phase for convective
heat and
mass transfer was
implemented. It should be noted that the application of the presented methodology is
not only restricted to the blast furnace, but rather represents a rigorous approach that
can be applied to other packed bed reactors as well.
A validation study on the particle scale using experimental results shows that the dis-
crete particle
model accurately predicts the progress of indirect reduction of a pellet.
The particle
model is shown to be capable of resolving radial gradients on the particle
scale avoiding rigorous assumptions or mathematical fits to a specific experimental setup.
These qualities of the
model permit its usage in the presented analysis of indirect reduc-
tion within the shaft of a blast furnace where each particle is subjected to time-varying
boundary conditions.
On the packed bed scale
heat and
mass transfer from the discrete to the continuous
phase was validated using experimental data. Moreover, the
model showed accurate
results when compared to experimental reduction data from a lab scale bed of iron ore
particles.
Finally, the reduction processes in the upper shaft of a blast furnace were analysed:
Firstly, isothermal reduction of a packed bed of pellets according to ISO standards
were analysed in terms of heterogeneity in temperature and reduction degree inside the
cylindrical reactor. Results indicate that radial gradients inside the packed bed are caused
by the higher
mass flow rate close to the reactor wall. Axial gradients develop due
reduction reactions and the direction of the fluid flow. The formation of these axial
gradients is found to be inherent to the process of indirect reduction of iron oxides due
to the sequence of exothermic and endothermic reaction steps.
Secondly, a…
Advisors/Committee Members: Peters, Bernhard [superviser], Greger, Manfred [president of the jury], Senk, Dieter [member of the jury], Dziugys, Algis [member of the jury], Simoes, Jean-Paul [member of the jury].
Subjects/Keywords: chemical engineering; blast furnace; Extended Discrete Element Method (XDEM); CFD; multi-phase heat and mass transfer; heterogeneous chemical reactions; packed bed; porous medium; multi-phase modelling; metal oxide reduction; numerical modelling; thermal conversion; discrete particle model; gas flow; Engineering, computing & technology :: Chemical engineering [C03]; Ingénierie, informatique & technologie :: Ingénierie chimique [C03]
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Hoffmann, F. (2014). Modelling Heterogeneous Reactions In Packed Beds and Its Application to The Upper Shaft of A Blast Furnace. (Doctoral Dissertation). Université du Luxembourg. Retrieved from http://orbilu.uni.lu/handle/10993/16663
Chicago Manual of Style (16th Edition):
Hoffmann, Florian. “Modelling Heterogeneous Reactions In Packed Beds and Its Application to The Upper Shaft of A Blast Furnace.” 2014. Doctoral Dissertation, Université du Luxembourg. Accessed March 06, 2021.
http://orbilu.uni.lu/handle/10993/16663.
MLA Handbook (7th Edition):
Hoffmann, Florian. “Modelling Heterogeneous Reactions In Packed Beds and Its Application to The Upper Shaft of A Blast Furnace.” 2014. Web. 06 Mar 2021.
Vancouver:
Hoffmann F. Modelling Heterogeneous Reactions In Packed Beds and Its Application to The Upper Shaft of A Blast Furnace. [Internet] [Doctoral dissertation]. Université du Luxembourg; 2014. [cited 2021 Mar 06].
Available from: http://orbilu.uni.lu/handle/10993/16663.
Council of Science Editors:
Hoffmann F. Modelling Heterogeneous Reactions In Packed Beds and Its Application to The Upper Shaft of A Blast Furnace. [Doctoral Dissertation]. Université du Luxembourg; 2014. Available from: http://orbilu.uni.lu/handle/10993/16663

NSYSU
27.
Hsiao, Chih-Hao.
A Numerical Simulation for heat and mass transfer in a microchannel of a fuel cell reformer.
Degree: Master, Mechanical and Electro-Mechanical Engineering, 2003, NSYSU
URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0708103-154730
► Abstract Reformer, the most important link of fuel cell, is the main set to create the hydrogen. After the fuel passes through the catalytic reaction…
(more)
▼ Abstract
Reformer, the most important link of fuel cell, is the main set to create the hydrogen. After the fuel passes through the catalytic reaction by reformer, will produce hydrogen and chemical substances, the hydrogen will become the energy to support fuel cell. At the present day, the technology of PEM fuel cell and traditional fuel reformer has already existed, only need to reduce the volume, cost and to promote the efficiency. Catalytic layer, with the construction of microchannel, makes the adequate impact to gas and catalyst to promote the efficiency.
This research uses the Lattice Boltzmann method (LBM) to simulate the fluid field and
heat-
mass transfer of microchannel, to discuss the function influence to the different parameter such as velocity, temperature, channel length, and channel height.
The result displays, with the same inlet speed and temperature, by the increasing of the channel length, the amount of hydrogen will raise and residual methanol will reduce. When the channel length is more than 500μm, the produce rate of hydrogen will not be a big change. If fix the channel length at 500μm, under the different inlet temperature, while the maximum concentration at inlet, the speed of hydrogen at inlet is not the same. The best inlet speed will increase with the higher temperature. When fix the channel length at 500μm, raising the altitude to 500μm, the hydrogen product will not increase, on the contrary, itâll go down.
Keywordsï¼Fuel cell reformerãMicorchannel of hat and
mass transferã
Numerical simulations
Advisors/Committee Members: Chien-Yuh Yang (chair), Ru Yang (committee member), Pey-Shey Wu (chair).
Subjects/Keywords: Numerical simulations; Microchannel of heat and mass transfer; fuel cell reformer
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APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Hsiao, C. (2003). A Numerical Simulation for heat and mass transfer in a microchannel of a fuel cell reformer. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0708103-154730
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Hsiao, Chih-Hao. “A Numerical Simulation for heat and mass transfer in a microchannel of a fuel cell reformer.” 2003. Thesis, NSYSU. Accessed March 06, 2021.
http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0708103-154730.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Hsiao, Chih-Hao. “A Numerical Simulation for heat and mass transfer in a microchannel of a fuel cell reformer.” 2003. Web. 06 Mar 2021.
Vancouver:
Hsiao C. A Numerical Simulation for heat and mass transfer in a microchannel of a fuel cell reformer. [Internet] [Thesis]. NSYSU; 2003. [cited 2021 Mar 06].
Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0708103-154730.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Hsiao C. A Numerical Simulation for heat and mass transfer in a microchannel of a fuel cell reformer. [Thesis]. NSYSU; 2003. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0708103-154730
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
28.
Camila Augusto Perussello.
Estudo dos parâmetros de processo e modelagem numérica da secagem do resíduo sólido da produção do extrato hidrossolúvel de soja (Okara).
Degree: 2008, Pontifícia Universidade Católica do Paraná
URL: http://www.biblioteca.pucpr.br/tede//tde_busca/arquivo.php?codArquivo=1176
► O presente trabalho analisa experimental e numericamente a transferência conjugada de calor e de massa durante a secagem do resíduo da produção do extrato hidrossolúvel…
(more)
▼ O presente trabalho analisa experimental e numericamente a transferência conjugada de calor e de massa durante a secagem do resíduo da produção do extrato hidrossolúvel de soja (okara). O processo de secagem proposto neste trabalho consiste em submeter a okara extrusada em formato de pellets a duas etapas de processo: na primeira etapa o produto é desidratado em tubo pneumático até a perda da adesividade superficial e na segunda etapa os pellets são submetidos à secagem em tambor rotativo a temperaturas mais amenas até atingirem um teor de umidade desejado, isto é, suficiente para evitar deterioração microbiológica e/ou enzimática durante a armazenagem. Os parâmetros de processo tais como tempo, temperatura e rotação do tambor são correlacionados ao nível de escurecimento do produto final. As temperaturas testadas para a primeira etapa do processo são 170C, 150C e 130C (as maiores temperaturas que puderam ser obtidas experimentalmente para se obter uma alta taxa de secagem), as temperaturas da segunda etapa do processo são 70C, 60C e 50C (temperaturas que não causassem altas taxas de escurecimento) e as rotações testadas para o tambor são 27 rpm e 47 rpm (rotações que puderam ser utilizadas experimentalmente sem causar danos ao secador construído em laboratório). Para atingir os objetivos deste trabalho foram realizados vários processos de secagem a diferentes condições dos parâmetros de processo citados. Para cada processo foram medidos experimentalmente os perfis de temperatura e umidade nos pellets e foi avaliado visualmente o nível de escurecimento do produto. A melhor combinação de secagem, em termos de tempo de processo e grau de escurecimento, é a que utiliza a temperatura de 150C na primeira etapa e a de 70C na segunda etapa de processo. O produto submetido a este processo combinado tem um período de secagem de 27 minutos e apresenta cor clara. Para proceder a análise numérica foram discretizadas as equações governantes da secagem, que são a Lei de Fourier para a transferência de calor e a Lei de Fick para a transferência de massa, pelo Método de Diferenças Finitas Implícito. Todas as propriedades termofísicas da okara utilizadas na simulação, densidade, densidade da fração sólida, calor específico, condutividade térmica, difusividade térmica, difusividade de massa, coeficiente de transferência de calor, coeficiente de transferência de massa, assim como o calor latente de vaporização da água e o calor específico do vapor de água, foram obtidas por meio de equações da literatura que utilizam dados coletados em laboratório. Para se calcular estas propriedades, foi considerada a porosidade dentro dos pellets da okara. Os processos foram simulados numericamente usando o Matlab e os resultados numéricos foram comparados com os resultados experimentais. Os resultados mostraram boa eficiência do método de secagem proposto, ou seja, foi possível obter pellets de okara com a atividade de água desejada, de cor clara e com boa formatação, e obteve-se concordância adequada entre os resultados experimentais e numéricos (R…
Advisors/Committee Members: Viviana Cocco Mariani, Álvaro César Camargo do Amarante.
Subjects/Keywords: Okara; Massa - Transferência; Materiais - Propriedades térmicas; ENGENHARIA MECANICA; Secagem; Análise numérica; Calor - Transmissão; Engenharia mecânica - Dissertações; Mechanical engineering; Heat; Numerical analysis; Drying; Materials; Mass transfer; Okara
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Manager
APA (6th Edition):
Perussello, C. A. (2008). Estudo dos parâmetros de processo e modelagem numérica da secagem do resíduo sólido da produção do extrato hidrossolúvel de soja (Okara). (Thesis). Pontifícia Universidade Católica do Paraná. Retrieved from http://www.biblioteca.pucpr.br/tede//tde_busca/arquivo.php?codArquivo=1176
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Perussello, Camila Augusto. “Estudo dos parâmetros de processo e modelagem numérica da secagem do resíduo sólido da produção do extrato hidrossolúvel de soja (Okara).” 2008. Thesis, Pontifícia Universidade Católica do Paraná. Accessed March 06, 2021.
http://www.biblioteca.pucpr.br/tede//tde_busca/arquivo.php?codArquivo=1176.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Perussello, Camila Augusto. “Estudo dos parâmetros de processo e modelagem numérica da secagem do resíduo sólido da produção do extrato hidrossolúvel de soja (Okara).” 2008. Web. 06 Mar 2021.
Vancouver:
Perussello CA. Estudo dos parâmetros de processo e modelagem numérica da secagem do resíduo sólido da produção do extrato hidrossolúvel de soja (Okara). [Internet] [Thesis]. Pontifícia Universidade Católica do Paraná; 2008. [cited 2021 Mar 06].
Available from: http://www.biblioteca.pucpr.br/tede//tde_busca/arquivo.php?codArquivo=1176.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Perussello CA. Estudo dos parâmetros de processo e modelagem numérica da secagem do resíduo sólido da produção do extrato hidrossolúvel de soja (Okara). [Thesis]. Pontifícia Universidade Católica do Paraná; 2008. Available from: http://www.biblioteca.pucpr.br/tede//tde_busca/arquivo.php?codArquivo=1176
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
29.
Nouri, Moudhaffar.
Simulation numérique directe des transferts de chaleur et de masse dans les milieux hétérogènes : Direct numerical simulation of heat and mass transfer in heterogeneous media.
Degree: Docteur es, Génie des procédés, 2020, université Paris-Saclay
URL: http://www.theses.fr/2020UPASC032
► La caractérisation des milieux hétérogènes est au coeur de l'efficacité énergétique. De nous jours, le recours à la simulation numérique est en plein développement pour…
(more)
▼ La caractérisation des milieux hétérogènes est au coeur de l'efficacité énergétique. De nous jours, le recours à la simulation numérique est en plein développement pour se substituer partiellement au travail expérimental fastidieux requis pour la caractérisation. Pour cela, la théorie de changement d'échelle (upscaling) permet de représenter les transferts thermiques et massiques à une échelle macroscopique, un milieu fictif qui masque les hétérogénéités, par des propriétés effectives. L'ensemble ces méthodes classiques supposent la présence d'un équilibre local entre les différentes phases de milieu. Cette hypothèse est mise en défaut pour plusieurs configurations pourtant assez courantes en pratique (milieux hétérogènes à propriétés thermophysiques contrastées, structuration en phase conductrice et phase de stockage...). D'autres approches telles que la modélisation multiéchelle ou le modèle macroscopique avec effet mémoire sont nécessaires . Au-delà de ces modèles qui restent limités à certaines morphologies/propriétés, la modélisation à l'échelle de l'hétérogénéité par la simulation numérique directe (DNS) est une méthode très générique applicable pour n'importe quel milieu hétérogène, dans la limite de la taille accessible avec les outils actuels (imagerie 3D et ressources de calcul).Ce travail de thèse s'inscrit dans cette voie et propose un ensemble de travaux menés à l'échelle des hétérogénéités pour étudier les phénomènes de transfert thermique et massique. Pour l'étude des phénomènes de transfert thermique isolé, la méthode émergente Lattice Boltzmann (LBM) a été choisie. Cette méthode est connue pour sa facilité de programmation et son aptitude au calcul haute performance. Cependant, sa version thermique standard (Thermal Lattice Boltzmann-TLBM) est incapable de traiter le transfert thermique transitoire avec différentes inerties thermiques des phases du milieu. Deux méthodes sont proposées afin de l'étendre pour ce cas. Le premier modèle se base sur une correction par l'ajout d'un terme source fonction des différentes inerties des phases du milieu. Ce terme est exprimé sous la forme d'un flux thermique et discrétisé par différences finies. Dans la même démarche, un deuxième modèle a été développé afin de conserver les propriétés de la localité de la méthode LBM. Un schéma LBM modifié est proposé pour prendre en compte l'inertie thermique locale sans aucune modification de la structure de la méthode autre que l'introduction d'une deuxième fonction de distribution à une seule composante.Pour les transferts couplés multiphysiques chaleur/masse/quantité de mouvement en milieux complexes, on a choisi de travailler avec la méthode des volumes finis connue par sa fiabilité et sa robustesse. La formulation développée est basée sur les équations de Navier-Stokes en présence des phénomènes de transfert couplé : écoulement de mélange, changement de phase, sorption, conduction thermique et diffusion massique. Il s'agit donc d'une formulation très complète. Des techniques de résolution adaptées à la forte…
Advisors/Committee Members: Perré, Patrick (thesis director).
Subjects/Keywords: Simulation numérique directe; Milieux hétérogènes; Transferts de chaleur et de masse; Non-Équilibre local; Direct numerical simulation; Heterogeneous media; Heat and mass transfer
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Record Details
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Nouri, M. (2020). Simulation numérique directe des transferts de chaleur et de masse dans les milieux hétérogènes : Direct numerical simulation of heat and mass transfer in heterogeneous media. (Doctoral Dissertation). université Paris-Saclay. Retrieved from http://www.theses.fr/2020UPASC032
Chicago Manual of Style (16th Edition):
Nouri, Moudhaffar. “Simulation numérique directe des transferts de chaleur et de masse dans les milieux hétérogènes : Direct numerical simulation of heat and mass transfer in heterogeneous media.” 2020. Doctoral Dissertation, université Paris-Saclay. Accessed March 06, 2021.
http://www.theses.fr/2020UPASC032.
MLA Handbook (7th Edition):
Nouri, Moudhaffar. “Simulation numérique directe des transferts de chaleur et de masse dans les milieux hétérogènes : Direct numerical simulation of heat and mass transfer in heterogeneous media.” 2020. Web. 06 Mar 2021.
Vancouver:
Nouri M. Simulation numérique directe des transferts de chaleur et de masse dans les milieux hétérogènes : Direct numerical simulation of heat and mass transfer in heterogeneous media. [Internet] [Doctoral dissertation]. université Paris-Saclay; 2020. [cited 2021 Mar 06].
Available from: http://www.theses.fr/2020UPASC032.
Council of Science Editors:
Nouri M. Simulation numérique directe des transferts de chaleur et de masse dans les milieux hétérogènes : Direct numerical simulation of heat and mass transfer in heterogeneous media. [Doctoral Dissertation]. université Paris-Saclay; 2020. Available from: http://www.theses.fr/2020UPASC032
30.
Canhoto, Paulo.
Optimization of Heat Transfer Systems and Use of the Environmental Exergy Potential - Application to Compact Heat Exchangers and Heat Pumps.
Degree: 2012, Universidade de Évora
URL: https://www.rcaap.pt/detail.jsp?id=oai:dspace.uevora.pt:10174/7775
► In this thesis, the optimization of forced convection heat sinks and groundwater-source heat pumps is addressed with the purpose of improving energy efficiency. Parallel ducts…
(more)
▼ In this thesis, the optimization of forced convection
heat sinks and groundwater-source
heat pumps is addressed with the purpose of improving energy efficiency. Parallel ducts
heat sinks are considered under constrained (fixed) pressure drop, pumping power and
heat transfer rate. The intersection-of-asymptotes method is employed together with
numerical simulations and relationships for determining optimum hydraulic diameter are put forward. An optimal design emerges under fixed
heat transfer rate, which matches that found through the joint minimization of pressure drop and pumping power. With regard to
heat pumps optimization, the relation between coefficient-of-performance and air-to-ground exergy potential is established, showing that energy saving as compared to air-to-air systems depends on the square root of that potential. The exergy potential in the Evora region is estimated, and exergy analysis of groundwater-source systems helps identifying distinct
conditions of operation: maximum/null net exergy output and best trade-off between environmental exergy utilization and power input.
Advisors/Committee Members: Heitor Reis, António.
Subjects/Keywords: Heat and Mass Transfer; Energy; Exergy; Optimization; Heat sinks; Constructal Theory
Record Details
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Cite
Share »
Record Details
Similar Records
Cite
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❌
APA ·
Chicago ·
MLA ·
Vancouver ·
CSE |
Export
to Zotero / EndNote / Reference
Manager
APA (6th Edition):
Canhoto, P. (2012). Optimization of Heat Transfer Systems and Use of the Environmental Exergy Potential - Application to Compact Heat Exchangers and Heat Pumps. (Thesis). Universidade de Évora. Retrieved from https://www.rcaap.pt/detail.jsp?id=oai:dspace.uevora.pt:10174/7775
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Chicago Manual of Style (16th Edition):
Canhoto, Paulo. “Optimization of Heat Transfer Systems and Use of the Environmental Exergy Potential - Application to Compact Heat Exchangers and Heat Pumps.” 2012. Thesis, Universidade de Évora. Accessed March 06, 2021.
https://www.rcaap.pt/detail.jsp?id=oai:dspace.uevora.pt:10174/7775.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
MLA Handbook (7th Edition):
Canhoto, Paulo. “Optimization of Heat Transfer Systems and Use of the Environmental Exergy Potential - Application to Compact Heat Exchangers and Heat Pumps.” 2012. Web. 06 Mar 2021.
Vancouver:
Canhoto P. Optimization of Heat Transfer Systems and Use of the Environmental Exergy Potential - Application to Compact Heat Exchangers and Heat Pumps. [Internet] [Thesis]. Universidade de Évora; 2012. [cited 2021 Mar 06].
Available from: https://www.rcaap.pt/detail.jsp?id=oai:dspace.uevora.pt:10174/7775.
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
Council of Science Editors:
Canhoto P. Optimization of Heat Transfer Systems and Use of the Environmental Exergy Potential - Application to Compact Heat Exchangers and Heat Pumps. [Thesis]. Universidade de Évora; 2012. Available from: https://www.rcaap.pt/detail.jsp?id=oai:dspace.uevora.pt:10174/7775
Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation
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