subject:(heat dissipation)

University of New South Wales

1. Ahmed, Abdulla. Manipulation of Heat Dissipation from Sides of Electrolytic Cells.

Degree: Chemical Sciences & Engineering, 2015, University of New South Wales

URL: http://handle.unsw.edu.au/1959.4/55345 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:37330/SOURCE02?view=true

► Increasing amperage in aluminium reduction cells enhances production but introduces the risk of causing significant disturbance to the thermal balance of the electrolytic cells which… (more)

▼ Increasing amperage in aluminium reduction cells enhances production but introduces the risk of causing significant disturbance to the thermal balance of the electrolytic cells which will cause early failure. This can cause production losses and generate considerable waste material that is toxic and expensive to dispose. There are many approaches adopted in Aluminium industry for amperage increase varying from constant power to constant anode cathode distance. However operating the cells with higher heat input (or out of the cell’s thermal operating window) at one stage is encountered in many smelters. Hence, various cell design modifications are required to cope with such extra heat input to maintain cell thermal balanceThe objective of this thesis is to determine design criteria that will enable optimum manipulation of heat dissipation from the sides of the electrolytic cells in order to have better side ledge freeze and to build a model to represent the experimental results. Both selective controlled air faced cooling and different cooling fins designs to the electrolytic cells shells were tested. Design features of a controlled air forced cooling network in term of nozzle diameters, distance from end of nozzles to the shell plate, nozzle angles and air velocity at the nozzle outlet (nozzle Reynolds number) were determined through extensive experiments on an industrial electrolytic cell. The optimum combinations of these manipulated parameters reduced the shell temperature by around 120 °C and improved the side ledge of the tested cell. This contributed to an increased life of the tested cell by 300 days. A two dimensional (2D) model was developed to represent the results of the experiments using the theoretical equations from the literature. The results of the model were found to be in agreement with actual results. The specific energy consumption of the cell increased by 132 kWhr due to the power required to operate the air supply (blower) to the network. Nevertheless, the selective air forced cooling can be considered as an option to enable electrolytic cells to operate beyond its thermal balance window. Extensive experiments were carried out as well to manipulate the impact of cooling fins design i.e. Fins thickness, height, spacing and thermal conductivity on the heat dissipation from the sides of electrolytic cells and the reduction in shell temperature. This reduction in shell temperature in turn enables better side ledge protection. It was found that the temperature of the steel plate could be reduced by up to 50 °C.

Subjects/Keywords: Heat Dissipation; Cooling Fins

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APA (6^th Edition):

Ahmed, A. (2015). Manipulation of Heat Dissipation from Sides of Electrolytic Cells. (Doctoral Dissertation). University of New South Wales. Retrieved from http://handle.unsw.edu.au/1959.4/55345 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:37330/SOURCE02?view=true

Chicago Manual of Style (16^th Edition):

Ahmed, Abdulla. “Manipulation of Heat Dissipation from Sides of Electrolytic Cells.” 2015. Doctoral Dissertation, University of New South Wales. Accessed March 08, 2021. http://handle.unsw.edu.au/1959.4/55345 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:37330/SOURCE02?view=true.

MLA Handbook (7^th Edition):

Ahmed, Abdulla. “Manipulation of Heat Dissipation from Sides of Electrolytic Cells.” 2015. Web. 08 Mar 2021.

Vancouver:

Ahmed A. Manipulation of Heat Dissipation from Sides of Electrolytic Cells. [Internet] [Doctoral dissertation]. University of New South Wales; 2015. [cited 2021 Mar 08]. Available from: http://handle.unsw.edu.au/1959.4/55345 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:37330/SOURCE02?view=true.

Council of Science Editors:

Ahmed A. Manipulation of Heat Dissipation from Sides of Electrolytic Cells. [Doctoral Dissertation]. University of New South Wales; 2015. Available from: http://handle.unsw.edu.au/1959.4/55345 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:37330/SOURCE02?view=true

University of New South Wales

2. Zheng, YongYing. High Speed Heat Dissipation Using Flow Control.

Degree: Mechanical & Manufacturing Engineering, 2016, University of New South Wales

URL: http://handle.unsw.edu.au/1959.4/55515 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:37920/SOURCE02?view=true

► The heat dissipation for high speed vehicle is a major public and scientific concern and an area of research of high fundamental and practical significance.… (more)

▼ The heat dissipation for high speed vehicle is a major public and scientific concern and an area of research of high fundamental and practical significance. Traditional methods of heat dissipation generally rely on heat resistant materials and ablators, and so are constrained by the material temperature limits, weight penalties and subsequent lowering of vehicle aerodynamic performance and thus incur high energy costs for operation.In this dissertation, using both physical experiments and numerical simulations, the flow characteristics and merits of using passive and active flow control methodologies were examined to seek solutions to the problems associated with heat dissipation. Investigations on mechanical spike, counterflow jet, focused energy deposition and their combinations were carried out to establish their heat reduction potentials as a consequence. The studies conducted in this study have produced several interesting outcomes, such as the establishment of the crucial role of the mechanical spike length in both drag and heat dissipation, the identification of the axial and transverse counter flow jet induced fluctuations of the shock wave as novel modes of heat dispersion and the demonstration that through appropriately optimised ejection pressure ratios of the counter flow jet, substantial heat reduction may be achieved with lower energy input. Another important feature of this thesis has been the introduction and investigation of the concept of a “hybrid system” that can be developed by combining two or more flow control methods for heat dissipation. The results obtained to test the conjecture are very promising. The hybrid system appears better in performance than a single stand-alone system. Thus, apart from providing a greater insight into the overall flow mechanisms associated with the flow control techniques considered, the results obtained in this thesis have also demonstrated the enormous potential of deploying or adapting various flow control techniques, particularly the hybrid ones, into the design of heat protection systems of high speed vehicles of the future. Advisors/Committee Members: Ahmed, Noor E-Alam, Mechanical & Manufacturing Engineering, Faculty of Engineering, UNSW.

Subjects/Keywords: Heat dissipation; Flow control

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APA (6^th Edition):

Zheng, Y. (2016). High Speed Heat Dissipation Using Flow Control. (Doctoral Dissertation). University of New South Wales. Retrieved from http://handle.unsw.edu.au/1959.4/55515 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:37920/SOURCE02?view=true

Chicago Manual of Style (16^th Edition):

Zheng, YongYing. “High Speed Heat Dissipation Using Flow Control.” 2016. Doctoral Dissertation, University of New South Wales. Accessed March 08, 2021. http://handle.unsw.edu.au/1959.4/55515 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:37920/SOURCE02?view=true.

MLA Handbook (7^th Edition):

Zheng, YongYing. “High Speed Heat Dissipation Using Flow Control.” 2016. Web. 08 Mar 2021.

Vancouver:

Zheng Y. High Speed Heat Dissipation Using Flow Control. [Internet] [Doctoral dissertation]. University of New South Wales; 2016. [cited 2021 Mar 08]. Available from: http://handle.unsw.edu.au/1959.4/55515 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:37920/SOURCE02?view=true.

Council of Science Editors:

Zheng Y. High Speed Heat Dissipation Using Flow Control. [Doctoral Dissertation]. University of New South Wales; 2016. Available from: http://handle.unsw.edu.au/1959.4/55515 ; https://unsworks.unsw.edu.au/fapi/datastream/unsworks:37920/SOURCE02?view=true

University of Missouri – Columbia

3. Peng, Hao, 1989-. Nonlinear thermomechanical finite-element modeling, analysis and characterization of multi-turn oscillating heat pipes.

Degree: 2012, University of Missouri – Columbia

URL: http://hdl.handle.net/10355/33471

► [ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Oscillating heat pipes (OHPs) are promising heat dissipation devices for modern electronic systems due… (more)

Subjects/Keywords: heat dissipation; electronic systems; oscillating heat pipes

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APA (6^th Edition):

Peng, Hao, 1. (2012). Nonlinear thermomechanical finite-element modeling, analysis and characterization of multi-turn oscillating heat pipes. (Thesis). University of Missouri – Columbia. Retrieved from http://hdl.handle.net/10355/33471

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Peng, Hao, 1989-. “Nonlinear thermomechanical finite-element modeling, analysis and characterization of multi-turn oscillating heat pipes.” 2012. Thesis, University of Missouri – Columbia. Accessed March 08, 2021. http://hdl.handle.net/10355/33471.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Peng, Hao, 1989-. “Nonlinear thermomechanical finite-element modeling, analysis and characterization of multi-turn oscillating heat pipes.” 2012. Web. 08 Mar 2021.

Vancouver:

Peng, Hao 1. Nonlinear thermomechanical finite-element modeling, analysis and characterization of multi-turn oscillating heat pipes. [Internet] [Thesis]. University of Missouri – Columbia; 2012. [cited 2021 Mar 08]. Available from: http://hdl.handle.net/10355/33471.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Peng, Hao 1. Nonlinear thermomechanical finite-element modeling, analysis and characterization of multi-turn oscillating heat pipes. [Thesis]. University of Missouri – Columbia; 2012. Available from: http://hdl.handle.net/10355/33471

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

4. Zghal, Jihed. Etude du comportement en fatigue à grand nombre de cycles d'un acier à haute limite d'élasticité HC360LA : endommagement, plasticité et phénomènes dissipatifs associés : High cycle fatigue behavior of a HC360LA high-strength low-alloy steel : damage, plasticity and associated dissipative phenomena.

Degree: Docteur es, Mécanique-matériaux, 2016, Paris, ENSAM

URL: http://www.theses.fr/2016ENAM0004

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Cette thèse, réalisée dans le cadre du projet APSTRAM (Allègement et Performance des STRuctures Acier Marine) de l’IRT Jules Verne, s’intéresse à l’endommagement en fatigue… (more)

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Cette thèse, réalisée dans le cadre du projet APSTRAM (Allègement et Performance des STRuctures Acier Marine) de l’IRT Jules Verne, s’intéresse à l’endommagement en fatigue à grand nombre de cycles d’un acier ferritique à haute limite d’élasticité HC360LA. La première partie de ce travail est dédiée à la réalisation d’essais de fatigue à contrainte imposée avec différents rapports de charge et différentes conditions initiales (fixées à partir d’un éventuel pré-écrouissage). Ces essais montrent que le pré-écrouissage, obtenu par traction uniaxiale, permet d’augmenter significativement la résistance à la fatigue. Aussi, un effort expérimental est fait pour estimer à partir des mesures de force, d’élongation et de température comment l’énergie de déformation est soit dissipée en chaleur, soit stockée dans le matériau par écrouissage. Les résultats ainsi obtenus montrent qu’il existe à l’échelle macroscopique une corrélation entre l’énergie dissipée et le nombre de cycles à rupture indépendamment des conditions initiales et des conditions de chargement. Cela souligne donc l’importance de la plasticité dans le processus d’endommagement en fatigue de l’acier HC360LA. Un modèle polycristallin de comportement et d’endommagement en fatigue est ensuite proposé. Il repose sur la formulation d’une loi de comportement à l’échelle cristalline qui utilise les ingrédients de la mécanique de l’endommagement pour décrire la dégradation progressive des propriétés mécaniques. La loi de comportement est établie de sorte à considérer le couplage de l’endommagement avec la plasticité, le caractère anisotrope de l’endommagement et l’influence de l’anisotropie des propriétés élastiques. Elle est ensuite implémentée dans un modèle d’homogénéisation afin de prendre en compte le caractère polycristallin de l’acier HC360LA. Le modèle proposé est finalement utilisé pour étudier le comportement en fatigue à l’échelle microscopique. Il permet d’abord de montrer que l’endommagement de fatigue est un processus extrêmement localisé qui ne concerne que quelques cristaux d’orientation particulière. De ce fait, si une diminution de la rigidité est localement observée, les propriétés élastiques macroscopiques sont peu influencées par l’endommagement. Aussi, le modèle permet de souligner que la contribution de l’endommagement à la dissipation de chaleur est négligeable devant celle de la plasticité. La corrélation entre le nombre de cycles à rupture et l’énergie dissipée n’existe donc que parce que l’endommagement de fatigue est le résultat de l’accumulation de déformation plastique.

The present work, which is integrated in the IRT Jules Verne APSTRAM project, focuses on the high cycle fatigue behavior of a ferritic high-strength low-alloy steel (HC360LA). First, different stress-controlled cyclic tests are carried out to study the influence of loading conditions and pre-straining on the fatigue behavior. According to the experimental results, a uniaxial tension pre-straining allows for a significant increase of the fatigue strength. Using the…

Advisors/Committee Members: Morel, Franck (thesis director).

Subjects/Keywords: Fatigue; Plasticité; Endommagement; Acier; Dissipation d’énergie; Fatigue; Plasticity; Damage; Steel; Heat dissipation

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Zghal, J. (2016). Etude du comportement en fatigue à grand nombre de cycles d'un acier à haute limite d'élasticité HC360LA : endommagement, plasticité et phénomènes dissipatifs associés : High cycle fatigue behavior of a HC360LA high-strength low-alloy steel : damage, plasticity and associated dissipative phenomena. (Doctoral Dissertation). Paris, ENSAM. Retrieved from http://www.theses.fr/2016ENAM0004

Chicago Manual of Style (16^th Edition):

Zghal, Jihed. “Etude du comportement en fatigue à grand nombre de cycles d'un acier à haute limite d'élasticité HC360LA : endommagement, plasticité et phénomènes dissipatifs associés : High cycle fatigue behavior of a HC360LA high-strength low-alloy steel : damage, plasticity and associated dissipative phenomena.” 2016. Doctoral Dissertation, Paris, ENSAM. Accessed March 08, 2021. http://www.theses.fr/2016ENAM0004.

MLA Handbook (7^th Edition):

Zghal, Jihed. “Etude du comportement en fatigue à grand nombre de cycles d'un acier à haute limite d'élasticité HC360LA : endommagement, plasticité et phénomènes dissipatifs associés : High cycle fatigue behavior of a HC360LA high-strength low-alloy steel : damage, plasticity and associated dissipative phenomena.” 2016. Web. 08 Mar 2021.

Vancouver:

Zghal J. Etude du comportement en fatigue à grand nombre de cycles d'un acier à haute limite d'élasticité HC360LA : endommagement, plasticité et phénomènes dissipatifs associés : High cycle fatigue behavior of a HC360LA high-strength low-alloy steel : damage, plasticity and associated dissipative phenomena. [Internet] [Doctoral dissertation]. Paris, ENSAM; 2016. [cited 2021 Mar 08]. Available from: http://www.theses.fr/2016ENAM0004.

Council of Science Editors:

Zghal J. Etude du comportement en fatigue à grand nombre de cycles d'un acier à haute limite d'élasticité HC360LA : endommagement, plasticité et phénomènes dissipatifs associés : High cycle fatigue behavior of a HC360LA high-strength low-alloy steel : damage, plasticity and associated dissipative phenomena. [Doctoral Dissertation]. Paris, ENSAM; 2016. Available from: http://www.theses.fr/2016ENAM0004

Université Montpellier II

5. Benaarbia, Adil. Analyse énergétique du comportement thermomécanique du PA6.6 chargé de fibres de verre : Energy analysis of the thermomechanical behavior of PA6.6 reinforced with short glass fibres.

Degree: Docteur es, Mécanique et Génie civil, 2014, Université Montpellier II

URL: http://www.theses.fr/2014MON20196

►

Cette étude présente une analyse thermomécanique du comportement en fatigue oligocyclique du polyamide 6.6 vierge et renforcé de fibres de verre courtes. Des bilans d'énergie… (more)

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Cette étude présente une analyse thermomécanique du comportement en fatigue oligocyclique du polyamide 6.6 vierge et renforcé de fibres de verre courtes. Des bilans d'énergie sont réalisés en utilisant, de façon combinée, des techniques d'imagerie quantitative visible et infrarouge. Les champs de température sont obtenus par thermographie et les champs de déformation par corrélation d'images. Sur un cycle de chargement, on montre comment il est possible d'estimer séparément les sources de chaleurs moyennes par cycle, sources associées aux mécanismes dissipatifs et induites par les effets de couplage thermomécanique. On montre ensuite, pour différentes fréquences de chargement, l'évolution du bilan de puissance moyen par cycle sur une zone matérielle correspondant à la partie utile de l'éprouvette. Ce bilan prend en compte le taux de l'énergie de déformation, les chaleurs mises en jeu et les variations d'énergie interne. On observe que la forme du bilan de puissance est très fortement dépendante, pour un rapport de charge donné, à la fréquence de sollicitation, à la teneur en eau, à l'orientation des fibres de verre mais aussi aux niveaux de contrainte appliqués.

This study presents a thermomechanical analysis of fatigue behavior of pure and short glass- fiber reinforced polyamide 6.6. The energy balances are drew up using the combined application of visible and infrared quantitative imaging techniques. Temperature fields are obtained by thermography and strain fields by image correlation. Over one complete cycle, we show how it is possible to separately estimate the heat sources averaged over the cycle, associated with dissipative mechanisms and induced by thermomechanical coupling source effets. Then we show, for different loading rates, the time courses of the energy rate balance for a physical area corresponding to the gage part of the specimen. This balance takes into account the deformation energy rate, the heat sources and the internal energy variations. It is observed that the shape of the energy rate balance is highly dependent, for a given load ratio, to the load rate, the water content, the orientation of the glass fibers and the applied stress levels.

Advisors/Committee Members: Chrysochoos, André (thesis director).

Subjects/Keywords: Dissipation; Stockage; Thermodynamique; Sources de chaleur; Thermographie infrarouge; Dissipation; Storage; Thermodynamics; Heat sources; Infrared thermography

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APA (6^th Edition):

Benaarbia, A. (2014). Analyse énergétique du comportement thermomécanique du PA6.6 chargé de fibres de verre : Energy analysis of the thermomechanical behavior of PA6.6 reinforced with short glass fibres. (Doctoral Dissertation). Université Montpellier II. Retrieved from http://www.theses.fr/2014MON20196

Chicago Manual of Style (16^th Edition):

Benaarbia, Adil. “Analyse énergétique du comportement thermomécanique du PA6.6 chargé de fibres de verre : Energy analysis of the thermomechanical behavior of PA6.6 reinforced with short glass fibres.” 2014. Doctoral Dissertation, Université Montpellier II. Accessed March 08, 2021. http://www.theses.fr/2014MON20196.

MLA Handbook (7^th Edition):

Benaarbia, Adil. “Analyse énergétique du comportement thermomécanique du PA6.6 chargé de fibres de verre : Energy analysis of the thermomechanical behavior of PA6.6 reinforced with short glass fibres.” 2014. Web. 08 Mar 2021.

Vancouver:

Benaarbia A. Analyse énergétique du comportement thermomécanique du PA6.6 chargé de fibres de verre : Energy analysis of the thermomechanical behavior of PA6.6 reinforced with short glass fibres. [Internet] [Doctoral dissertation]. Université Montpellier II; 2014. [cited 2021 Mar 08]. Available from: http://www.theses.fr/2014MON20196.

Council of Science Editors:

Benaarbia A. Analyse énergétique du comportement thermomécanique du PA6.6 chargé de fibres de verre : Energy analysis of the thermomechanical behavior of PA6.6 reinforced with short glass fibres. [Doctoral Dissertation]. Université Montpellier II; 2014. Available from: http://www.theses.fr/2014MON20196

University of Toronto

6. FENG, CHEN. Using Thermal Spray Technology to Make Heat Spreaders for LED Cooling.

Degree: 2014, University of Toronto

URL: http://hdl.handle.net/1807/68601

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Thermal spray coating processes have been employed to create either copper wicks or zinc skins of the heat spreaders that were designed for LEDs cooling… (more)

Subjects/Keywords: composite heat spreader; heat dissipation; heat pipe; LED cooling; porous polymer; thermal spray; 0548

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APA (6^th Edition):

FENG, C. (2014). Using Thermal Spray Technology to Make Heat Spreaders for LED Cooling. (Masters Thesis). University of Toronto. Retrieved from http://hdl.handle.net/1807/68601

Chicago Manual of Style (16^th Edition):

FENG, CHEN. “Using Thermal Spray Technology to Make Heat Spreaders for LED Cooling.” 2014. Masters Thesis, University of Toronto. Accessed March 08, 2021. http://hdl.handle.net/1807/68601.

MLA Handbook (7^th Edition):

FENG, CHEN. “Using Thermal Spray Technology to Make Heat Spreaders for LED Cooling.” 2014. Web. 08 Mar 2021.

Vancouver:

FENG C. Using Thermal Spray Technology to Make Heat Spreaders for LED Cooling. [Internet] [Masters thesis]. University of Toronto; 2014. [cited 2021 Mar 08]. Available from: http://hdl.handle.net/1807/68601.

Council of Science Editors:

FENG C. Using Thermal Spray Technology to Make Heat Spreaders for LED Cooling. [Masters Thesis]. University of Toronto; 2014. Available from: http://hdl.handle.net/1807/68601

University of Texas – Austin

7. Jia, Qianru. Synthesis and characterization of high-surface area hexagonal boron nitride foam structures.

Degree: MSin Engineering, Mechanical Engineering, 2019, University of Texas – Austin

URL: http://dx.doi.org/10.26153/tsw/5663

► Hexagonal boron nitride (h-BN) shares a similar layered crystal structure as graphite. Graphite is a semimetal with an ultrahigh thermal conductivity. In comparison, h-BN is… (more)

▼ Hexagonal boron nitride (h-BN) shares a similar layered crystal structure as graphite. Graphite is a semimetal with an ultrahigh thermal conductivity. In comparison, h-BN is a high-thermal conductivity electrical insulator, which is more suitable than metals for a number of applications in thermal management of electronic devices. Continuous and porous foam structures of both graphitic carbon and h-BN have been synthesized for thermal management and other applications. High-thermal conductivity and light-weight graphite foams have demonstrated superior thermal performance than both metal foams and van der Waals bonded networks of carbon nanotubes and graphitic flakes. However, the volume fraction and effective thermal conductivity of existing h-BN foam structures are still limited by the large pore size and limited specific surface area of the sacrificial reticular nickel foam templates used for chemical vapor deposition (CVD) of h-BN. This thesis reports on an investigation of the use of sacrificial sintered nickel powder templates with reduced pore sizes to increase the surface area of h-BN foam grown by atmospheric pressure CVD (APCVD) on the template. The volume fraction of the obtained h-BN foam is increased by a factor of 2.8 compared to a baseline h-BN foam grown on a commercial reticular nickel foam template. With poly(methyl methacrylate) (PMMA) filled into the pore space of the h-BN foam, the room-temperature effective thermal conductivity of the composite increases from 0.31 ± 0.02 Wm⁻¹K⁻¹ for the baseline structure to 0.51 ± 0.04 Wm⁻¹K⁻¹ for the structure with increased h-BN volume fraction. The room-temperature solid thermal conductivity of the h-BN strut is determined from the effective thermal conductivity via the Lemlich model to be 380 ± 80 Wm⁻¹K⁻¹, which is comparable to literature basal-plane values for h-BN crystals and compressed pellets. For a h-BN foam structure annealed at 700°C upon growth for 48 hrs, the solid thermal conductivity is 490 ± 120Wm⁻¹K⁻¹ Advisors/Committee Members: Shi, Li, Ph. D. (advisor).

Subjects/Keywords: h-BN; Heat dissipation; Foam-like structure; APCVD; High-surface area

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Jia, Q. (2019). Synthesis and characterization of high-surface area hexagonal boron nitride foam structures. (Masters Thesis). University of Texas – Austin. Retrieved from http://dx.doi.org/10.26153/tsw/5663

Chicago Manual of Style (16^th Edition):

Jia, Qianru. “Synthesis and characterization of high-surface area hexagonal boron nitride foam structures.” 2019. Masters Thesis, University of Texas – Austin. Accessed March 08, 2021. http://dx.doi.org/10.26153/tsw/5663.

MLA Handbook (7^th Edition):

Jia, Qianru. “Synthesis and characterization of high-surface area hexagonal boron nitride foam structures.” 2019. Web. 08 Mar 2021.

Vancouver:

Jia Q. Synthesis and characterization of high-surface area hexagonal boron nitride foam structures. [Internet] [Masters thesis]. University of Texas – Austin; 2019. [cited 2021 Mar 08]. Available from: http://dx.doi.org/10.26153/tsw/5663.

Council of Science Editors:

Jia Q. Synthesis and characterization of high-surface area hexagonal boron nitride foam structures. [Masters Thesis]. University of Texas – Austin; 2019. Available from: http://dx.doi.org/10.26153/tsw/5663

8. Jacobs, Devin L. Extreme Heat: Assessing Impacts of Heat and Microclimate on Birds of the Sonoran Desert.

Degree: 2017, University of Nevada – Reno

URL: http://hdl.handle.net/11714/2016

► At high temperatures, birds can face increased levels of stress which may ultimately impose fitness costs. Average air temperatures across much of the United States… (more)

▼ At high temperatures, birds can face increased levels of stress which may ultimately impose fitness costs. Average air temperatures across much of the United States are expected to exceed thermal tolerance limits of many birds over the next 100 years. To reduce thermal pressures, birds may be able to use various physiological heat dissipation behaviors (HDB), and/or select vegetated microsites to perch within that may provide cooler environmental temperatures than the ambient surroundings. Although, both microsite selection and heat dissipating behaviors have been shown to impact bird survival during heat waves, the relative costs and benefits of performing each of these actions requires further exploration and quantification. The purpose of this study is to detail the thermal heterogeneity available in a Sonoran Desert ecosystem due to microclimatic variation, and examine the ways in which different birds use this thermal heterogeneity in combination with heat dissipating behaviors. In chapter one, I assess differences in air temperatures recorded across a range of vegetated microsite densities, and use linear models to examine how air temperature differences respond to varying weather and vegetation variables. Temperatures within densely vegetated microsites increased at a slower rate than the ambient surroundings (.97 °C for every 1 °C increase in ambient temperature), and led to an even greater proportional reduction in exposure to cumulative degree-hours above 40 °C. Differences between microsite temperatures and estimated ambient air temperatures provided by a gridded temperature product highlight the need to account for microclimatic variation when estimating thermal impacts over large areas. In chapter 2, to examine the ways in which birds use variations in their thermal environment at high temperatures, I quantify preference shifts in perch locations across time with χ2 tests, and use logistic models to examine the combined impact of microsite selections and weather conditions on different birds’ use of physiological heat dissipating behaviors. The strength of perch preference shifts varied strongly between species, and birds were observed performing HDBs more often within more heavily vegetated microsites. This implies that necessity and/or benefit of using microsite selection and HDBs may vary between species with different physiological characteristics, and that vegetated microsites are used to avoid unnecessary thermal costs at high temperatures. These studies illustrate that predictions of the thermal impacts to birds from heat waves should incorporate the range of temperatures available due to microclimatic variation, and should consider the behavioral options and preferences of birds under different weather conditions. Advisors/Committee Members: Albright, Thomas P (advisor), Hayes, Jack P (committee member), Bassett, Scott D (committee member).

Subjects/Keywords: birds; heat dissipation; microclimate; perch preference; temperature; vegetation

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APA (6^th Edition):

Jacobs, D. L. (2017). Extreme Heat: Assessing Impacts of Heat and Microclimate on Birds of the Sonoran Desert. (Thesis). University of Nevada – Reno. Retrieved from http://hdl.handle.net/11714/2016

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Jacobs, Devin L. “Extreme Heat: Assessing Impacts of Heat and Microclimate on Birds of the Sonoran Desert.” 2017. Thesis, University of Nevada – Reno. Accessed March 08, 2021. http://hdl.handle.net/11714/2016.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Jacobs, Devin L. “Extreme Heat: Assessing Impacts of Heat and Microclimate on Birds of the Sonoran Desert.” 2017. Web. 08 Mar 2021.

Vancouver:

Jacobs DL. Extreme Heat: Assessing Impacts of Heat and Microclimate on Birds of the Sonoran Desert. [Internet] [Thesis]. University of Nevada – Reno; 2017. [cited 2021 Mar 08]. Available from: http://hdl.handle.net/11714/2016.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Jacobs DL. Extreme Heat: Assessing Impacts of Heat and Microclimate on Birds of the Sonoran Desert. [Thesis]. University of Nevada – Reno; 2017. Available from: http://hdl.handle.net/11714/2016

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

NSYSU

9. Lee, Wei-Chi. The Effects of Variations of Materialâs Thermal Conductivity Coefficient on Heat Dissipation of Optical Fiber Transceiver Device.

Degree: Master, Mechanical and Electro-Mechanical Engineering, 2016, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0729116-014200

► As portable electronic devices have become widely used, both the demand for internet access and network traffic have increased hugely. The Optical Fiber Transceiver Device… (more)

▼ As portable electronic devices have become widely used, both the demand for internet access and network traffic have increased hugely. The Optical Fiber Transceiver Device is important for communication through optical fiber networks. The temperature of the device affects its lifetime, the quality of communication and the coupling efficiency of the optical fiber. Since some of the components of the Optical Fiber Transceiver Device can be made of various materials, this work constructs a threeâdimensional Optical Fiber Transceiver Device model using the ANSYS 15.0/Fluent software for implementing the finite volume method, and to investigate the effects of the thermal conductivity coefficient of the materials on heat dissipation by the device. Among five components which have alternative materials â substrate, housing, coating, SMT substrate and solder ball ââ the results revealed the dissipation of heat by the device was dominated by the variations of substrate and SMT substrateâs thermal conductivity coefficient. These critical variables were fitted using equations in terms of the maximum temperature of device and the difference between the inlet and outlet temperatures of the laser coupling. The effect of the laser power on the fitting model was considered. Then, the design rule corresponding to the critical componentsâ thermal conductivity coefficient of the Optical Fiber Transceiver Device was obtained successfully. The errors between the simulated and the fitted results which were concluding the maximum temperature of device and the difference between the inlet and outlet temperatures of the laser coupling were less than 9%. At a heat dissipation by the laser of 210mW, when the thermal conductivity coefficients of the substrate and the SMT substrateâs material were 2W/mâ and 60W/mâ, the maximum temperature of the device and the difference between the inlet and outlet temperatures were less than 85â and 12â, respectively. Advisors/Committee Members: Ting-Nung Shiau (chair), Chi-Hui Chien (committee member), Jung-Hung Sun (chair), Chung-Ting Wang (chair).

Subjects/Keywords: optical fiber transceiver device; heat dissipation; finite volume method; design rule; thermal conductivity coefficient

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Lee, W. (2016). The Effects of Variations of Materialâs Thermal Conductivity Coefficient on Heat Dissipation of Optical Fiber Transceiver Device. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0729116-014200

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Lee, Wei-Chi. “The Effects of Variations of Materialâs Thermal Conductivity Coefficient on Heat Dissipation of Optical Fiber Transceiver Device.” 2016. Thesis, NSYSU. Accessed March 08, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0729116-014200.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Lee, Wei-Chi. “The Effects of Variations of Materialâs Thermal Conductivity Coefficient on Heat Dissipation of Optical Fiber Transceiver Device.” 2016. Web. 08 Mar 2021.

Vancouver:

Lee W. The Effects of Variations of Materialâs Thermal Conductivity Coefficient on Heat Dissipation of Optical Fiber Transceiver Device. [Internet] [Thesis]. NSYSU; 2016. [cited 2021 Mar 08]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0729116-014200.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Lee W. The Effects of Variations of Materialâs Thermal Conductivity Coefficient on Heat Dissipation of Optical Fiber Transceiver Device. [Thesis]. NSYSU; 2016. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0729116-014200

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of New Mexico

10. Smith, Eric. Avian Thermoregulation in the Heat: Resting Metabolism, Evaporative Cooling and Limits to Activity in Sonoran Desert Birds.

Degree: UNM Biology Department, 2018, University of New Mexico

URL: https://digitalrepository.unm.edu/biol_etds/298

► Birds in subtropical deserts face significant thermoregulatory challenges as environmental temperatures regularly exceed avian body temperature. To understand the differing susceptibility of desert birds… (more)

▼ Birds in subtropical deserts face significant thermoregulatory challenges as environmental temperatures regularly exceed avian body temperature. To understand the differing susceptibility of desert birds to increasing temperatures, this dissertation initially examined thermoregulatory performance in seven passerine bird species varying in body mass from 10 to 70g – Lesser Goldfinch, House Finch, Pyrrhuloxia, Cactus Wren, Northern Cardinal, Abert’s Towhee and Curve-billed Thrasher – and three larger Sonoran Desert nesting bird species – Mourning Dove (104 g), White-winged Dove (147 g) and Gambel’s Quail (161 g). Daytime resting metabolism, evaporative water loss and real-time body temperature were measured using flow-through respirometry at air temperatures (T_air) from 30° to 66°C. Marked increases in resting metabolism were found at the upper critical temperature (T_uc), which for six of the seven passerine species fell within a relatively narrow range (T_air=36.2° - 39.7°C), but which was considerably higher in the largest, the Curve-billed Thrasher (42.6°C); the T_uc of the quail (41.1°C) was similar to that of the thrasher but considerably lower than in both dove species (45.9° - 46.5°C). Resting metabolism and evaporative water loss were minimal below the T_uc and increased with T_airabove the T_uc in all species to maximum values of 0.38 - 1.62 W and 0.87 - 4.02 g H₂O hr^-1, respectively, among the passerines, 0.94 W and 3.21 g H₂O hr^-1 in the Gambel’s Quail, and 0.77 - 1.17 W and 3.73 - 6.59 g H₂O hr^-1in the Mourning and White-winged Doves. The passerines maintained relatively high rates of resting metabolism and evaporative water loss and reached heat tolerance limits (HTL) that did not scale with body mass but were ~50°C for all species. Gambel’s Quail maintained low resting metabolic rates and low rates of evaporative water loss and reached their HTL at T_air of 52°C. Mourning Doves and White-winged Doves maintained low resting metabolic rates, but high rates of evaporative water loss and reached their HTL at T_air of 58° - 60°C. Body temperatures reached maximum values of 43.5° to 45.3°C in the passerines, 43.6°C in Gambel’s Quail but only 41.9° - 42.7°C in Mourning and White-winged Doves. Among the passerines the ratio of evaporative heat loss to metabolic heat production reached maximum values ranging from 1.39-2.06, similar to that found here for the quail (2.14) but much lower than that found for the doves (3.08-3.69). Desert birds reduce their activity during the heat of the day, supporting predictions that daily activities and thus fitness and survival will be increasingly impacted by climate warming. Improving confidence in these predictions requires a detailed, mechanistic understanding of functional limits on activity and variability in these limits across taxa. The Heat Dissipation Limit (HDL) theory posits that… Advisors/Committee Members: Blair O. Wolf, Alexander R. Gerson, Janet M. Ruth, Christopher C. Witt.

Subjects/Keywords: birds; body temperature; heat dissipation limit theory; resting metabolism; Sonoran Desert; evaporative cooling; Biology

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Smith, E. (2018). Avian Thermoregulation in the Heat: Resting Metabolism, Evaporative Cooling and Limits to Activity in Sonoran Desert Birds. (Doctoral Dissertation). University of New Mexico. Retrieved from https://digitalrepository.unm.edu/biol_etds/298

Chicago Manual of Style (16^th Edition):

Smith, Eric. “Avian Thermoregulation in the Heat: Resting Metabolism, Evaporative Cooling and Limits to Activity in Sonoran Desert Birds.” 2018. Doctoral Dissertation, University of New Mexico. Accessed March 08, 2021. https://digitalrepository.unm.edu/biol_etds/298.

MLA Handbook (7^th Edition):

Smith, Eric. “Avian Thermoregulation in the Heat: Resting Metabolism, Evaporative Cooling and Limits to Activity in Sonoran Desert Birds.” 2018. Web. 08 Mar 2021.

Vancouver:

Smith E. Avian Thermoregulation in the Heat: Resting Metabolism, Evaporative Cooling and Limits to Activity in Sonoran Desert Birds. [Internet] [Doctoral dissertation]. University of New Mexico; 2018. [cited 2021 Mar 08]. Available from: https://digitalrepository.unm.edu/biol_etds/298.

Council of Science Editors:

Smith E. Avian Thermoregulation in the Heat: Resting Metabolism, Evaporative Cooling and Limits to Activity in Sonoran Desert Birds. [Doctoral Dissertation]. University of New Mexico; 2018. Available from: https://digitalrepository.unm.edu/biol_etds/298

Brno University of Technology

11. Peterka, Michal. Návrh a realizace modulárního bioreaktoru s využitím odpadního tepla: Design and Implementation of Modular Bioreactor with Use of Wasted Heat.

Degree: 2019, Brno University of Technology

URL: http://hdl.handle.net/11012/68187

► The aim of the thesis is to extend the existing project of further use of waste heat from biodegradation processes and to improve bioreactor design.… (more)

Subjects/Keywords: fermentor; bioreaktor; biomasa; bioplyn; odběr tepla; fermenter; bioreactor; biomass; biogas; heat dissipation

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Peterka, M. (2019). Návrh a realizace modulárního bioreaktoru s využitím odpadního tepla: Design and Implementation of Modular Bioreactor with Use of Wasted Heat. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/68187

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Peterka, Michal. “Návrh a realizace modulárního bioreaktoru s využitím odpadního tepla: Design and Implementation of Modular Bioreactor with Use of Wasted Heat.” 2019. Thesis, Brno University of Technology. Accessed March 08, 2021. http://hdl.handle.net/11012/68187.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Peterka, Michal. “Návrh a realizace modulárního bioreaktoru s využitím odpadního tepla: Design and Implementation of Modular Bioreactor with Use of Wasted Heat.” 2019. Web. 08 Mar 2021.

Vancouver:

Peterka M. Návrh a realizace modulárního bioreaktoru s využitím odpadního tepla: Design and Implementation of Modular Bioreactor with Use of Wasted Heat. [Internet] [Thesis]. Brno University of Technology; 2019. [cited 2021 Mar 08]. Available from: http://hdl.handle.net/11012/68187.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Peterka M. Návrh a realizace modulárního bioreaktoru s využitím odpadního tepla: Design and Implementation of Modular Bioreactor with Use of Wasted Heat. [Thesis]. Brno University of Technology; 2019. Available from: http://hdl.handle.net/11012/68187

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Ohio University

12. Khosravi Khorashad, Larousse. Theoretical and Computational Study of Optical Properties of Complex Plasmonic Structures.

Degree: PhD, Physics and Astronomy (Arts and Sciences), 2017, Ohio University

URL: http://rave.ohiolink.edu/etdc/view?acc_num=ohiou150834414639462

► Research on plasmonics science and study of optical properties of photonic devices at the nanoscale have become extremely prominent and desirable among scientists over the… (more)

Subjects/Keywords: Condensed Matter Physics; Nanoscience; Nanotechnology; Optics; Physics; Plasmonics; Circular Dichroism; Metamaterials; Heat Dissipation; Nanostructures

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Khosravi Khorashad, L. (2017). Theoretical and Computational Study of Optical Properties of Complex Plasmonic Structures. (Doctoral Dissertation). Ohio University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=ohiou150834414639462

Chicago Manual of Style (16^th Edition):

Khosravi Khorashad, Larousse. “Theoretical and Computational Study of Optical Properties of Complex Plasmonic Structures.” 2017. Doctoral Dissertation, Ohio University. Accessed March 08, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou150834414639462.

MLA Handbook (7^th Edition):

Khosravi Khorashad, Larousse. “Theoretical and Computational Study of Optical Properties of Complex Plasmonic Structures.” 2017. Web. 08 Mar 2021.

Vancouver:

Khosravi Khorashad L. Theoretical and Computational Study of Optical Properties of Complex Plasmonic Structures. [Internet] [Doctoral dissertation]. Ohio University; 2017. [cited 2021 Mar 08]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=ohiou150834414639462.

Council of Science Editors:

Khosravi Khorashad L. Theoretical and Computational Study of Optical Properties of Complex Plasmonic Structures. [Doctoral Dissertation]. Ohio University; 2017. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=ohiou150834414639462

University of Cincinnati

13. Zhu, Weiming. Multiscale Model of Heat Dissipation Mechanisms During Field Emission from Carbon Nanotube Fibers.

Degree: PhD, Engineering and Applied Science: Electrical Engineering, 2018, University of Cincinnati

URL: http://rave.ohiolink.edu/etdc/view?acc_num=ucin1530880336075941

► A multiscale model of field emission (FE) from a carbon nanotube fiber (CNF) is developed which takes into account Joule heating within the fiber and… (more)

Subjects/Keywords: Electrical Engineering; Carbon Nanotube Fibers; Field Emission; Multiscale Model; Numerical Simulation; Heat Dissipation Mechanism

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Zhu, W. (2018). Multiscale Model of Heat Dissipation Mechanisms During Field Emission from Carbon Nanotube Fibers. (Doctoral Dissertation). University of Cincinnati. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=ucin1530880336075941

Chicago Manual of Style (16^th Edition):

Zhu, Weiming. “Multiscale Model of Heat Dissipation Mechanisms During Field Emission from Carbon Nanotube Fibers.” 2018. Doctoral Dissertation, University of Cincinnati. Accessed March 08, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1530880336075941.

MLA Handbook (7^th Edition):

Zhu, Weiming. “Multiscale Model of Heat Dissipation Mechanisms During Field Emission from Carbon Nanotube Fibers.” 2018. Web. 08 Mar 2021.

Vancouver:

Zhu W. Multiscale Model of Heat Dissipation Mechanisms During Field Emission from Carbon Nanotube Fibers. [Internet] [Doctoral dissertation]. University of Cincinnati; 2018. [cited 2021 Mar 08]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=ucin1530880336075941.

Council of Science Editors:

Zhu W. Multiscale Model of Heat Dissipation Mechanisms During Field Emission from Carbon Nanotube Fibers. [Doctoral Dissertation]. University of Cincinnati; 2018. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=ucin1530880336075941

14. López Belchí, Alejandro. Characterisation of heat transfer and pressure drop in condensation processes within mini‐channel tubes with last generation of refrigerant fluids .

Degree: Ingeniería Térmica y de Fluidos, 2014, Universidad Politécnica de Cartagena

URL: http://hdl.handle.net/10317/4595

► [ESP] El desarrollo del intercambiador de calor es impulsado por el aumento de eficiencia energética y la reducción de emisiones. Nuevos sistemas basados en minicanales… (more)

▼ [ESP] El desarrollo del intercambiador de calor es impulsado por el aumento de eficiencia energética y la reducción de emisiones. Nuevos sistemas basados en minicanales son necesarios para alcanzar los estándares. Se pueden describir los minicanales como tubos de aluminio extruidos con uno o más puertos y con diámetro hidráulico en el intervalo de 0,2 a 3 mm. Su uso en los sistemas de refrigeración desde hace algunos años es una realidad gracias a la capacidad de desarrollar sistemas a microescala. Algunas empresas de intercambiadores tienen algunos modelos desarrollados especialmente para su uso en el sector automovilístico, el sector de refrigeración y frío industrial sin tener un conocimiento profundo de cómo estas geometrías reducidas afectan los parámetros más importantes, tales como la caída de presión y el coeficiente de transferencia de calor. Para responder a este objetivo, se ha realizado una revisión exhaustiva de la literatura de las últimas dos décadas para determinar el estado de la investigación. Varios modelos han sido seleccionados para comprobar las capacidades de predicción. La mayoría fueron desarrollados para tubos minicanal de un solo puerto. Se midieron en una instalación experimental construida en la Universidad Politécnica de Cartagena la pérdida de carga por fricción y el coeficiente de transferencia de calor. Se comparan las medidas experimentales de caída de presión y coeficiente de transferencia de calor con los modelos mencionados anteriormente. La mayoría de ellos capturan la tendencia correctamente pero otros fracasan en la predicción de los datos experimentales. Estas diferencias pueden explicarse por los parámetros experimentales considerados durante el desarrollo de estos modelos. En algunos casos, los modelos fueron desarrollados para condiciones específicas, en consecuencia, su capacidad de predicción se encuentra restringida. Como principales aportaciones, esta tesis proporciona nuevas herramientas de modelado de flujos en cambio de fase en el interior de mini-canales, para la determinación de la caída de presión y cálculo del coeficiente de transferencia de calor. En esta tesis se proporciona también un análisis comparativo de un refrigerante de reciente desarrollado. [ENG] Heat exchanger developments are driven by energetic efficiency increase and emission reduction. To reach the standards new system are required based on mini-channels. Mini-channels can be described as tubes with one or more ports extruded in aluminium with hydraulic diameter are in the range of 0.2 to 3 mm. Its use in refrigeration systems for some years ago is a reality thanks to the human ability to made micro-scale systems. Some heat exchanger enterprises have some models developed specially for their use in automotive sector, cooling sector, and industrial refrigeration without having a deep knowledge of how these reduced geometries affect the most important parameters such as pressure drop and the heat transfer coefficient. To respond to this objective, an exhaustive literature review of the last two… Advisors/Committee Members: García Cascales, José Ramón (advisor), Vera García, Francisco (advisor).

Subjects/Keywords: Transferencia de calor; Refrigeración de alimentos; Fuentes no convencioanales de calor; Heat transfer; Heat dissipation; Refrigerant fluids; Mini-channel tubes; Refrigerants

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

López Belchí, A. (2014). Characterisation of heat transfer and pressure drop in condensation processes within mini‐channel tubes with last generation of refrigerant fluids . (Thesis). Universidad Politécnica de Cartagena. Retrieved from http://hdl.handle.net/10317/4595

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

López Belchí, Alejandro. “Characterisation of heat transfer and pressure drop in condensation processes within mini‐channel tubes with last generation of refrigerant fluids .” 2014. Thesis, Universidad Politécnica de Cartagena. Accessed March 08, 2021. http://hdl.handle.net/10317/4595.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

López Belchí, Alejandro. “Characterisation of heat transfer and pressure drop in condensation processes within mini‐channel tubes with last generation of refrigerant fluids .” 2014. Web. 08 Mar 2021.

Vancouver:

López Belchí A. Characterisation of heat transfer and pressure drop in condensation processes within mini‐channel tubes with last generation of refrigerant fluids . [Internet] [Thesis]. Universidad Politécnica de Cartagena; 2014. [cited 2021 Mar 08]. Available from: http://hdl.handle.net/10317/4595.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

López Belchí A. Characterisation of heat transfer and pressure drop in condensation processes within mini‐channel tubes with last generation of refrigerant fluids . [Thesis]. Universidad Politécnica de Cartagena; 2014. Available from: http://hdl.handle.net/10317/4595

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

15. Lachhab, Abdelmonem. Caractérisation du comportement thermomécanique d'un polyuréthane compact et sous forme de mousse : application aux butées élastiques pour véhicules automobiles : Characterization of the thermomechanical behavior of a compact and foamed polyurethane : application to elastic bumpers for motor vehicles.

Degree: Docteur es, Mécanique, 2016, Rennes 1

URL: http://www.theses.fr/2016REN1S134

►

L'objectif de cette thèse est de mener une caractérisation expérimentale complète du comportement mécanique et thermomécanique d'un polyuréthane thermoplastique compact et sous forme moussée, utilisé… (more)

▼

L'objectif de cette thèse est de mener une caractérisation expérimentale complète du comportement mécanique et thermomécanique d'un polyuréthane thermoplastique compact et sous forme moussée, utilisé dans la fabrication de pièces antivibratoires dans l'industrie automobile. Cette caractérisation est effectuée en s'appuyant sur des techniques d'imagerie quantitative, la thermographie infrarouge en particulier. D'un point de vue mécanique, la dépendance des différents phénomènes - effet Mullins, hystérésis mécanique, déformation résiduelle et variation de volume - à la densité initiale et à la vitesse de chargement a été établie. Sur le plan thermique et calorimétrique, la signature de ces différents phénomènes a été caractérisée et les bilans énergétiques menés ont permis d'estimer la dissipation mécanique en fonction des conditions d'essais et de la densité initiale du matériau. Les résultats de ces travaux constituent une base de données expérimentale pour l'identification de paramètres constitutifs et l'enrichissement de lois de comportement.

This PhD thesis deals with the full mechanical and thermomechanical characterization of thermoplastic polyurethane, in its compact and foam states, dedicated to antivibratory systems for automotive. This characterization has been carried out by using quantitative imaging techniques, especially infrared thermography. From a mechanical point of view, the dependency of the different phenomena involved in the material deformation - Mullins effect, mechanical hysteresis, residual deformation and volume change - on the initial density and loading rate has been established. The thermal and calorimetric signature of these phenomena has been characterized and the mechanical dissipation was estimated from energy balances. The results obtained provide an experimental database for the identification of constitutive parameters and the enrichment of behavior laws.

Advisors/Committee Members: Le Cam, Jean-Benoît (thesis director), Robin, Éric (thesis director).

Subjects/Keywords: Polyuréthane thermoplastique compact/moussé; Thermographie infrarouge; Effets inélastiques; Variation de volume; Sources de chaleur; Dissipation mécanique; Thermoplastic polyurethane compact/foamed; Infrared thermography; Inelastic effects; Volume change; Heat sources; Mechanical dissipation

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Lachhab, A. (2016). Caractérisation du comportement thermomécanique d'un polyuréthane compact et sous forme de mousse : application aux butées élastiques pour véhicules automobiles : Characterization of the thermomechanical behavior of a compact and foamed polyurethane : application to elastic bumpers for motor vehicles. (Doctoral Dissertation). Rennes 1. Retrieved from http://www.theses.fr/2016REN1S134

Chicago Manual of Style (16^th Edition):

Lachhab, Abdelmonem. “Caractérisation du comportement thermomécanique d'un polyuréthane compact et sous forme de mousse : application aux butées élastiques pour véhicules automobiles : Characterization of the thermomechanical behavior of a compact and foamed polyurethane : application to elastic bumpers for motor vehicles.” 2016. Doctoral Dissertation, Rennes 1. Accessed March 08, 2021. http://www.theses.fr/2016REN1S134.

MLA Handbook (7^th Edition):

Lachhab, Abdelmonem. “Caractérisation du comportement thermomécanique d'un polyuréthane compact et sous forme de mousse : application aux butées élastiques pour véhicules automobiles : Characterization of the thermomechanical behavior of a compact and foamed polyurethane : application to elastic bumpers for motor vehicles.” 2016. Web. 08 Mar 2021.

Vancouver:

Lachhab A. Caractérisation du comportement thermomécanique d'un polyuréthane compact et sous forme de mousse : application aux butées élastiques pour véhicules automobiles : Characterization of the thermomechanical behavior of a compact and foamed polyurethane : application to elastic bumpers for motor vehicles. [Internet] [Doctoral dissertation]. Rennes 1; 2016. [cited 2021 Mar 08]. Available from: http://www.theses.fr/2016REN1S134.

Council of Science Editors:

Lachhab A. Caractérisation du comportement thermomécanique d'un polyuréthane compact et sous forme de mousse : application aux butées élastiques pour véhicules automobiles : Characterization of the thermomechanical behavior of a compact and foamed polyurethane : application to elastic bumpers for motor vehicles. [Doctoral Dissertation]. Rennes 1; 2016. Available from: http://www.theses.fr/2016REN1S134

16. Descombin, Alexis. Machine thermique nano-électro-mécanique : Nano electro mechanical heat engine.

Degree: Docteur es, Physique, 2019, Lyon

URL: http://www.theses.fr/2019LYSE1193

►

L'objectif de cette thèse est l'étude des échanges et de la dissipation d'énergie aux échelles mésoscopiques, à travers l'étude de nanotubes, de nanofils ou de… (more)

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L'objectif de cette thèse est l'étude des échanges et de la dissipation d'énergie aux échelles mésoscopiques, à travers l'étude de nanotubes, de nanofils ou de pointes taillées par exemple. Notre intérêt pour la dissipation d'énergie nous portera vers les NEMS (Nano Electro Mechanical Systems) et leur facteur de qualité. Pour étudier les échanges d'énergie nous nous intéresserons à la thermodynamique aux petites échelles et notamment aux machines thermiques qui exploitent ces échanges d'énergie pour extraire un travail utile (mécanique, électrique...). Ce travail se concentre dans un premier temps sur la dissipation d'énergie et plus particulièrement sur le facteur de qualité de nanotubes de carbone mono-paroi à température ambiante et sur la façon de l'augmenter par application d'une tension électrique. Cette tension électrique induit un fort tirage sur le nanotube et la modification concomitante de la forme du mode résonant modifie la dissipation d’énergie. Ce phénomène, couplé à une modification des propriétés de l’ancrage (effet d’ancrage mou ajustable en tension) résultant également de la tension, diminue drastiquement la dissipation d’énergie et on atteint alors des facteurs de qualité record. Dans un second temps, nous nous intéressons aux machines thermiques : une machine stochastique cyclique et une machine électrique continue. La machine thermique stochastique est réalisée avec un nanofil vibrant sous ultra haut vide. La thermodynamique stochastique permet de redéfinir le travail et la chaleur pour un objet qui stocke des quantités d’énergies similaires aux fluctuations du bain thermique avec lequel il est en contact. Le premier objectif est de réaliser un cycle de Carnot permettant d'atteindre le rendement du même nom, inaccessible pour les machines macroscopiques. Pour la machine thermique continue nous étudions numériquement un prototype de machine thermique électrique basé sur des effets de résonance d'effet tunnel qui pourrait être une amélioration du principe des machines thermoïoniques. L’utilisation de l’effet tunnel permet à priori de réduire la température de la source chaude de la machine puisque l’on a plus besoin de vaincre le travail de sortie des deux électrodes. Les résonances dans l’effet tunnel, obtenues par confinement dans une dimension, permettent un filtrage en énergie des électrons passant d’un réservoir thermique à l’autre, ce qui a pour effet d’améliorer le rendement de la machine

The purpose of this work is the study of energy transfer and dissipation at the mesoscopic scale, through the study of nanotubes, nanowires, or sharp tips for example. Our interest for energy dissipation will lead us to dive into Nano Electro Mechanical Systems (NEMS) and their quality factor. Energy transfers will be studied with small scale thermodynamics and stochastic heat engines which use those energy transfers to produce useful work (mechanical, electrical…). This work is focused in a first time on the energy dissipation and particularly on the quality factor of single wall carbon nanotubes at…

Advisors/Committee Members: Ayari, Anthony (thesis director).

Subjects/Keywords: Nanosciences; Physique stochastique; Dissipation d'énergie; Thermodynamique; Machines thermiques; NEMS; Emission de champ; Filtrage d'énergie; Nanotechnology; Stochastic physics; Energy dissipation; Thermodynamics; Heat engines; NEMS; Field emission; Energy filtering; 530

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Descombin, A. (2019). Machine thermique nano-électro-mécanique : Nano electro mechanical heat engine. (Doctoral Dissertation). Lyon. Retrieved from http://www.theses.fr/2019LYSE1193

Chicago Manual of Style (16^th Edition):

Descombin, Alexis. “Machine thermique nano-électro-mécanique : Nano electro mechanical heat engine.” 2019. Doctoral Dissertation, Lyon. Accessed March 08, 2021. http://www.theses.fr/2019LYSE1193.

MLA Handbook (7^th Edition):

Descombin, Alexis. “Machine thermique nano-électro-mécanique : Nano electro mechanical heat engine.” 2019. Web. 08 Mar 2021.

Vancouver:

Descombin A. Machine thermique nano-électro-mécanique : Nano electro mechanical heat engine. [Internet] [Doctoral dissertation]. Lyon; 2019. [cited 2021 Mar 08]. Available from: http://www.theses.fr/2019LYSE1193.

Council of Science Editors:

Descombin A. Machine thermique nano-électro-mécanique : Nano electro mechanical heat engine. [Doctoral Dissertation]. Lyon; 2019. Available from: http://www.theses.fr/2019LYSE1193

NSYSU

17. Tsai, Wei-Yu. Microstructures and properties of nano-grain refined 304 stainless steel and ceramic-powder inserted Al processed by ultrasonic surface mechanical attrition treatment.

Degree: PhD, Materials and Optoelectronic Science, 2017, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0426117-103718

► In this research, we used Ultrasonic shot peening equipment as the tool, conducting nano-crystallization and surface mechanical coating experiments. Detailed experimental methods, results and discussion… (more)

▼ In this research, we used Ultrasonic shot peening equipment as the tool, conducting nano-crystallization and surface mechanical coating experiments. Detailed experimental methods, results and discussion are presented separately as SMAT and UMCA parts in the manuscript. For the first part, the analytic modeling and one experimental assess of the ultrasonic surface mechanical attrition treatment (SMAT) are presented. The bombarding ball speed, induced energy, and the resulting sample hardness, experienced depth and grain size are incorporated into this model, based on harmonic longitudinal vibration motion of ultrasonic-wave-driven ball impact onto the sample surface. An experimental assessment by using a stainless steel flat sample is conducted, and the comparison of the model and experiment is reported. There appear some optimum SMAT working parameters for the best SMAT effect, locating within the ranges of 1-2 mm for the ball size, 8-10 m/s for the ball speed, 4-5x102 s-1 for the strain rate, and 70-75 mJ for the input energy. Beyond the optimum SMAT parameters, the sample surface would be subject to bombarding micro-cracking and the grain size would not be further reduced. Instead, the grain size becomes larger and the hardness becomes lower. The benefits from SMAT would become lower. We used 1050 aluminum alloys, which often serve as heat sink in light-emitting diode (LED) lighting, are inherent with a high thermal conductivity, but poor thermal total emissivity. Thus, high emissive coatings on the Al substrate can enhance the thermal dissipation efficiency of radiation. In this study, the ultrasonic mechanical coating and armoring (UMCA) technique was used to insert various ceramic combinations, such as Al2O3, SiO2, graphite and carbon nanotube to enhance thermal dissipation. Analytic models have been established to couple the thermal radiation and convection on the sample surface through heat flow equations. A promising match has been reached between the theoretical estimations and experimental measurements. With the adequate insertion of ceramic powders, the heat can be transferred to thermal radiation and emitted. The temperature of the Al plates and heat sinks can be lowered by 5â11Â°C, which is highly favorable for applications requiring cooling components. Advisors/Committee Members: Chih-Ching Huang (committee member), Che-Hsin Lin (chair), Cheng-Tang Pan (chair), Hsuan-Kai Lin (chair), Shian-Ching Jang (chair).

Subjects/Keywords: surface mechanical attrition treatment; grain refinement; fine grain strengthening; ultrasonic mechanical coating and armoring; heat dissipation coating

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APA (6^th Edition):

Tsai, W. (2017). Microstructures and properties of nano-grain refined 304 stainless steel and ceramic-powder inserted Al processed by ultrasonic surface mechanical attrition treatment. (Doctoral Dissertation). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0426117-103718

Chicago Manual of Style (16^th Edition):

Tsai, Wei-Yu. “Microstructures and properties of nano-grain refined 304 stainless steel and ceramic-powder inserted Al processed by ultrasonic surface mechanical attrition treatment.” 2017. Doctoral Dissertation, NSYSU. Accessed March 08, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0426117-103718.

MLA Handbook (7^th Edition):

Tsai, Wei-Yu. “Microstructures and properties of nano-grain refined 304 stainless steel and ceramic-powder inserted Al processed by ultrasonic surface mechanical attrition treatment.” 2017. Web. 08 Mar 2021.

Vancouver:

Tsai W. Microstructures and properties of nano-grain refined 304 stainless steel and ceramic-powder inserted Al processed by ultrasonic surface mechanical attrition treatment. [Internet] [Doctoral dissertation]. NSYSU; 2017. [cited 2021 Mar 08]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0426117-103718.

Council of Science Editors:

Tsai W. Microstructures and properties of nano-grain refined 304 stainless steel and ceramic-powder inserted Al processed by ultrasonic surface mechanical attrition treatment. [Doctoral Dissertation]. NSYSU; 2017. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0426117-103718

Universidade do Rio Grande do Sul

18. Ortiz, Paulo Rodolfo Buffon. Avaliação da geração térmica e do campo de temperatura na fermentação de cerveja artesanal.

Degree: 2017, Universidade do Rio Grande do Sul

URL: http://hdl.handle.net/10183/172044

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O presente trabalho apresenta a análise térmica do fenômeno de fermentação de cerveja com o objetivo de quantificar a energia liberada durante o processo e… (more)

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O presente trabalho apresenta a análise térmica do fenômeno de fermentação de cerveja com o objetivo de quantificar a energia liberada durante o processo e avaliar o comportamento do campo de temperaturas do fermentando. É adotada uma metodologia que reúne abordagens teóricas e experimentais, aplicadas a um processo completo de fermentação. O calor dissipado durante a fermentação é calculado por equações presentes na literatura, tendo como entrada a taxa de conversão de glicose e produção de CO2. Essas taxas são calculadas pelas concentrações de glicose medidas de amostras retiradas durante ensaios planejados. A dissipação é usada como entrada em dois modelos térmicos para o cálculo do campo de temperaturas do fermentando. As temperaturas calculadas são superiores àquelas monitoradas experimentalmente, com diferenças de até 78%. Esse comportamento embasa a proposta de uma equação de ajuste do calor liberado durante a fermentação. A equação proposta indica que é liberado 38 kJ por mol de glicose convertido, neste estudo a taxa de dissipação térmica atinge valor máximo de 11,41 Wm-3 e a energia total dissipada é de 385 kJ para produzir 40 litros de cerveja. O ajuste mostrou-se satisfatório, as temperaturas máximas e os campos de temperaturas calculados apresentaram valores equivalentes aos valores experimentais.

The present study carry out a thermal analysis of beer fermentation process which aims to quantify the energy released during the process and evaluate the temperature field, using a methodology that brings together theoretical and experimental approaches. The heat dissipated during the fermentation is calculated by equations reported in the literature, with the conversion rates of glucose and CO2 production as input. These rates are calculated using the glucose concentrations measured of samples taken during tests. The dissipation is used as input in two thermal models for the calculation of temperature field. The calculated temperatures are higher than those monitored experimentally, with differences up to 78%. It supports the proposal of an adjusted equation for heat release of beer fermentation. The proposed equation indicates that 38 kJ per mol of converted glucose is released. In this study, the thermal dissipation rate reaches a maximum value of 11.41 Wm-3 and the total energy dissipated is 385 kJ for producing 40 liters of beer. The adjustment is satisfactory, the maximum temperatures and the temperature fields calculated are equivalent to the experimental values.

Advisors/Committee Members: Schneider, Paulo Smith.

Subjects/Keywords: Beer fermentation; Fermentação; Microbrewer; Análise térmica; Cerveja : Produção; Heat dissipation; Modelos matemáticos; Temperature field; Mathematical model

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APA (6^th Edition):

Ortiz, P. R. B. (2017). Avaliação da geração térmica e do campo de temperatura na fermentação de cerveja artesanal. (Thesis). Universidade do Rio Grande do Sul. Retrieved from http://hdl.handle.net/10183/172044

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Ortiz, Paulo Rodolfo Buffon. “Avaliação da geração térmica e do campo de temperatura na fermentação de cerveja artesanal.” 2017. Thesis, Universidade do Rio Grande do Sul. Accessed March 08, 2021. http://hdl.handle.net/10183/172044.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Ortiz, Paulo Rodolfo Buffon. “Avaliação da geração térmica e do campo de temperatura na fermentação de cerveja artesanal.” 2017. Web. 08 Mar 2021.

Vancouver:

Ortiz PRB. Avaliação da geração térmica e do campo de temperatura na fermentação de cerveja artesanal. [Internet] [Thesis]. Universidade do Rio Grande do Sul; 2017. [cited 2021 Mar 08]. Available from: http://hdl.handle.net/10183/172044.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Ortiz PRB. Avaliação da geração térmica e do campo de temperatura na fermentação de cerveja artesanal. [Thesis]. Universidade do Rio Grande do Sul; 2017. Available from: http://hdl.handle.net/10183/172044

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Delft University of Technology

19. Zenteno Montemayor, Yarai (author). Tem heat dissipation system: Increasing performance of a thermoelectrical integrated facade through the heat dissipation system.

Degree: 2020, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:f59b0053-2cca-47a8-8e67-b20df2fb7bc1

► Recent studies show an increase in energy use on buildings due to higher cooling demands, constituting an increase of 17% of the global energy consumption… (more)

▼ Recent studies show an increase in energy use on buildings due to higher cooling demands, constituting an increase of 17% of the global energy consumption by 2050. Tendencies also show that cooling degree days around the globe will also increase and this will display a greater impact on developing countries with warm climates. Subsequently, this gives interest in reducing energy demands on buildings through both innovative passive and active design strategies that can convert these buildings into energy efficient buildings whilst reaching their desired comfort values. The potential to integrate these strategies for cooling system into a building façade has been looked into by recent research. As is the case of the thermoelectric technology, which is a promising cooling technology that has gained interest from architects in the past few years, and it has a great potential for integration. This device has the advantage of generating a temperature difference between the device’s two sides when direct current is applied it and so it has been widely studied and used as coolers at small scale. There are not enough studies and experimentation of integration at façade level has been conducted with this technology, and those that exists show that the system’s performance is still much lower than traditional air-conditioning systems. Thus, this graduation project focuses on a performance-based design, where the heat dissipation system’s design and its integration with the TE is explored and investigated, what parameters affects its performance, and, subsequently, their effect on the façade and the architecture of the building within a hot-arid climate in Mexico. For this, a combination of experiments and simulations were used to determine the effect certain design parameters have on the thermal performance of the heat dissipation system. Parallel to this, an office case study was selected, and simulations performed to determine the ideal passive strategies for reduction cooling load in a hot-arid climate. A stepped methodology was used for the experiments and simulations for the heat dissipation system and a comparative evaluation on different passive design strategies for the office design was applied. A simplified heat transfer model for the heat dissipation of the thermoelectrical technology was developed, where a series of design strategies were possible to be tested. Analysing the results determined which parameters had a greater impact on the design, for the heat dissipation system its performance was evaluated through its COP, and for the office design lower cooling loads were the defining parameter. General trends were identified on both evaluated levels and each show their potential. These were then translated into design guidelines for the heat dissipation system and office building design and then visualized as a final thermoelectrical facade design. The final COP of the cooling system based on the heat dissipation designed was 1.40. An evaluation on the designed TE façade was done, its limitations and potentials… Advisors/Committee Members: Prieto Hoces, Alejandro (mentor), van den Ham, Eric (graduation committee), Delft University of Technology (degree granting institution).

Subjects/Keywords: Thermoelectric; Façade Design; Climate design; Passive Design; Active design; Integrated Facade; hot arid climate; heat dissipation

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APA (6^th Edition):

Zenteno Montemayor, Y. (. (2020). Tem heat dissipation system: Increasing performance of a thermoelectrical integrated facade through the heat dissipation system. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:f59b0053-2cca-47a8-8e67-b20df2fb7bc1

Chicago Manual of Style (16^th Edition):

Zenteno Montemayor, Yarai (author). “Tem heat dissipation system: Increasing performance of a thermoelectrical integrated facade through the heat dissipation system.” 2020. Masters Thesis, Delft University of Technology. Accessed March 08, 2021. http://resolver.tudelft.nl/uuid:f59b0053-2cca-47a8-8e67-b20df2fb7bc1.

MLA Handbook (7^th Edition):

Zenteno Montemayor, Yarai (author). “Tem heat dissipation system: Increasing performance of a thermoelectrical integrated facade through the heat dissipation system.” 2020. Web. 08 Mar 2021.

Vancouver:

Zenteno Montemayor Y(. Tem heat dissipation system: Increasing performance of a thermoelectrical integrated facade through the heat dissipation system. [Internet] [Masters thesis]. Delft University of Technology; 2020. [cited 2021 Mar 08]. Available from: http://resolver.tudelft.nl/uuid:f59b0053-2cca-47a8-8e67-b20df2fb7bc1.

Council of Science Editors:

Zenteno Montemayor Y(. Tem heat dissipation system: Increasing performance of a thermoelectrical integrated facade through the heat dissipation system. [Masters Thesis]. Delft University of Technology; 2020. Available from: http://resolver.tudelft.nl/uuid:f59b0053-2cca-47a8-8e67-b20df2fb7bc1

Brunel University

20. Ferhati, Arben. Single-phase laminar flow heat transfer from confined electron beam enhanced surfaces.

Degree: PhD, 2015, Brunel University

URL: http://bura.brunel.ac.uk/handle/2438/13827 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.701927

► The continuing requirement for computational processing power, multi-functional devices and component miniaturization have emphasised the need for thermal management systems able to maintain the temperature… (more)

▼ The continuing requirement for computational processing power, multi-functional devices and component miniaturization have emphasised the need for thermal management systems able to maintain the temperature at safe operating condition. The thermal management industry is constantly seeking for new cutting edge, efficient, cost effective heat transfer enhancement technologies. The aim of this study is to utilize the electron beam treatment for the improvement of the heat transfer area in liquid cooled plates and experimentally evaluate the performance. Considering the complexity of the technology, this thesis focuses on the design and production of electron beam enhanced test samples, construction of the test facility, testing procedure and evaluation of thermal and hydraulic characteristics. In particular, the current research presented in this thesis contains a number of challenging and cutting edge technological developments that include: (1) an overview of the semiconductor industry, cooling requirements, the market of thermal management systems, (2) an integral literature review of pin-fin enhancement technology, (3) design and fabrication of the electron beam enhanced test samples, (4) upgrade and construction of the experimental test rig and the development of the test procedure, (5) reduction of the experimental data and analysis to evaluate thermal and hydraulic performance. The experimental results show that the capability of the electron beam treatment to improve the thermal efficiency of current untreated liquid cooled plates is approximately three times. The highest heat transfer rate was observed for the sample S3; this is attributed to the irregularities of the enhanced structure, which improves the heat transfer area, mixing, and disturbs the thermal and velocity boundary layers. Enhancement of heat transfer for all three samples was characterised by an increase of pressure drop. The electron beam enhancement technique is a rapid process with zero material waste and cost effective. It allows thermal management systems to be produced smaller and faster, reduce material usage, without compromising safety, labour cost or the environment.

Subjects/Keywords: 621.402; Electronic information management; Single/ multi-core processor architecture; Heat dissipation; Thermoelectric cooling technique; Cooling technologies

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APA (6^th Edition):

Ferhati, A. (2015). Single-phase laminar flow heat transfer from confined electron beam enhanced surfaces. (Doctoral Dissertation). Brunel University. Retrieved from http://bura.brunel.ac.uk/handle/2438/13827 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.701927

Chicago Manual of Style (16^th Edition):

Ferhati, Arben. “Single-phase laminar flow heat transfer from confined electron beam enhanced surfaces.” 2015. Doctoral Dissertation, Brunel University. Accessed March 08, 2021. http://bura.brunel.ac.uk/handle/2438/13827 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.701927.

MLA Handbook (7^th Edition):

Ferhati, Arben. “Single-phase laminar flow heat transfer from confined electron beam enhanced surfaces.” 2015. Web. 08 Mar 2021.

Vancouver:

Ferhati A. Single-phase laminar flow heat transfer from confined electron beam enhanced surfaces. [Internet] [Doctoral dissertation]. Brunel University; 2015. [cited 2021 Mar 08]. Available from: http://bura.brunel.ac.uk/handle/2438/13827 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.701927.

Council of Science Editors:

Ferhati A. Single-phase laminar flow heat transfer from confined electron beam enhanced surfaces. [Doctoral Dissertation]. Brunel University; 2015. Available from: http://bura.brunel.ac.uk/handle/2438/13827 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.701927

21. Gupta, Man Prakash. Numerical investigation of carbon nanotube thin-film composites and devices.

Degree: PhD, Mechanical Engineering, 2014, Georgia Tech

URL: http://hdl.handle.net/1853/54846

► Carbon nanotubes (CNTs) are known for their exceptional electrical, thermal, mechanical, optical, and chemical properties. With the significant progress in recent years on synthesis, purification… (more)

▼ Carbon nanotubes (CNTs) are known for their exceptional electrical, thermal, mechanical, optical, and chemical properties. With the significant progress in recent years on synthesis, purification and integration challenges, CNT network/array based thin-film transistors (TFTs) are likely to play a critical role as the building blocks of future electronics. CNT-TFTs can find applications in flexible, transparent and energy-efficient circuits, e-displays, solar cells, RFID tags, e-paper, touch screens, implantable medical devices and chemical/bio/optical sensors. CNTs in CNT-TFTs are deposited on low thermal conductivity substrates which can impede the heat dissipation resulting in high temperature. The excessive self-heating in CNT-TFTs can degrade the electrical and thermal performance and could potentially lead to failure of the devices. Therefore, the issues related to operational reliability of CNT-TFTs arising from the self-heating effects need to be examined and studied. In the present work, a computational approach is developed and employed to study the electrical and thermal transport in CNT-TFTs. The modeling framework can predict the current and temperature profile of CNT network/array and the supporting structure. The model is validated against the experimental results. In case of CNT network TFTs, the computational method allows us to examine the role of various device parameters such as network morphology (i.e., network density, CNT junction topology, and CNT length and alignment distribution) and channel geometry (i.e., channel length and width) on heat dissipation and thermal reliability. The simulation results help interpret experimental data and provide the quantitative information about the thermal boundary conductances at CNT junctions and CNT-substrate interfaces in CNT-TFTs. The findings suggest that the structure of CNT junctions on substrate can become very critical in CNT network TFTs as the lack of contact with the substrate at these junctions can lead to junction temperatures hundreds of degrees higher than the rest of the device, which will severely deteriorate the performance of these devices. High-field breakdown study of CNT network TFTs is also conducted which provides guidelines for the design and optimization with respect to aforementioned parameters in order to enhance the performance and reliability. Dense CNT arrays are preferred for better electrical performance in CNT array TFTs, but they also experience electrostatic and thermal cross-talk which can adversely affect the device performance. These effects have been studied in details. The role of trap charges in CNT array TFTs is also investigated to understand and mitigate hysteresis. Lastly, CNT-liquid crystal composites are studied using dissipative particle dynamics (DPD) technique with the aim to understand how the CNT concentration in composite affects the alignment of liquid crystals and to explore the method of CNT alignment using liquid crystals. Advisors/Committee Members: Kumar, Satish (advisor), Alexeev, Alexander (committee member), Cola, Baratunde (committee member), Tentzeris, Manos (committee member), Chatterjee, Abhijit (committee member).

Subjects/Keywords: Carbon nanotube; Transistors; Modeling; Reliability; Heat dissipation

…heat dissipation and high-field breakdown of CN-TFTs. The impact xxii of thermal boundary… …28]. 1.2 Motivation and Scope of Current Work 1.2.1 Heat Dissipation and Thermal… …have been focused on the heat dissipation and thermal reliability of these devices which is… …from the simulations. The power dissipation first increases with VSD, then eventually drops… …61 Figure 4.4 (a) Variation of power dissipation in the CN-TFT vs. VSD for…

11 more images…

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APA (6^th Edition):

Gupta, M. P. (2014). Numerical investigation of carbon nanotube thin-film composites and devices. (Doctoral Dissertation). Georgia Tech. Retrieved from http://hdl.handle.net/1853/54846

Chicago Manual of Style (16^th Edition):

Gupta, Man Prakash. “Numerical investigation of carbon nanotube thin-film composites and devices.” 2014. Doctoral Dissertation, Georgia Tech. Accessed March 08, 2021. http://hdl.handle.net/1853/54846.

MLA Handbook (7^th Edition):

Gupta, Man Prakash. “Numerical investigation of carbon nanotube thin-film composites and devices.” 2014. Web. 08 Mar 2021.

Vancouver:

Gupta MP. Numerical investigation of carbon nanotube thin-film composites and devices. [Internet] [Doctoral dissertation]. Georgia Tech; 2014. [cited 2021 Mar 08]. Available from: http://hdl.handle.net/1853/54846.

Council of Science Editors:

Gupta MP. Numerical investigation of carbon nanotube thin-film composites and devices. [Doctoral Dissertation]. Georgia Tech; 2014. Available from: http://hdl.handle.net/1853/54846

22. Ganesh, Natesh. Physical Information Theoretic Bounds on Energy Costs for Error Correction.

Degree: MS, Electrical & Computer Engineering, 2011, University of Massachusetts

URL: https://scholarworks.umass.edu/theses/677

► With diminishing returns in performance with scaling of traditional transistor devices, there is a growing need to understand and improve potential replacements technologies. Sufficient… (more)

Subjects/Keywords: Error Correction; Linear (n; k) code; Heat Dissipation; Generalized Efficacy Measures; Information Loss; Fundamental Lower Bounds; Electrical and Computer Engineering

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APA (6^th Edition):

Ganesh, N. (2011). Physical Information Theoretic Bounds on Energy Costs for Error Correction. (Masters Thesis). University of Massachusetts. Retrieved from https://scholarworks.umass.edu/theses/677

Chicago Manual of Style (16^th Edition):

Ganesh, Natesh. “Physical Information Theoretic Bounds on Energy Costs for Error Correction.” 2011. Masters Thesis, University of Massachusetts. Accessed March 08, 2021. https://scholarworks.umass.edu/theses/677.

MLA Handbook (7^th Edition):

Ganesh, Natesh. “Physical Information Theoretic Bounds on Energy Costs for Error Correction.” 2011. Web. 08 Mar 2021.

Vancouver:

Ganesh N. Physical Information Theoretic Bounds on Energy Costs for Error Correction. [Internet] [Masters thesis]. University of Massachusetts; 2011. [cited 2021 Mar 08]. Available from: https://scholarworks.umass.edu/theses/677.

Council of Science Editors:

Ganesh N. Physical Information Theoretic Bounds on Energy Costs for Error Correction. [Masters Thesis]. University of Massachusetts; 2011. Available from: https://scholarworks.umass.edu/theses/677

Washington State University

23. [No author]. Energy loss characterization of the P3 MEMS heat engine .

Degree: 2006, Washington State University

URL: http://hdl.handle.net/2376/537

Subjects/Keywords: Waste-heat engines – Design and construction.; Waste heat – Environmental aspects.; Energy dissipation.

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APA (6^th Edition):

author], [. (2006). Energy loss characterization of the P3 MEMS heat engine . (Thesis). Washington State University. Retrieved from http://hdl.handle.net/2376/537

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

author], [No. “Energy loss characterization of the P3 MEMS heat engine .” 2006. Thesis, Washington State University. Accessed March 08, 2021. http://hdl.handle.net/2376/537.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

author], [No. “Energy loss characterization of the P3 MEMS heat engine .” 2006. Web. 08 Mar 2021.

Vancouver:

author] [. Energy loss characterization of the P3 MEMS heat engine . [Internet] [Thesis]. Washington State University; 2006. [cited 2021 Mar 08]. Available from: http://hdl.handle.net/2376/537.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

author] [. Energy loss characterization of the P3 MEMS heat engine . [Thesis]. Washington State University; 2006. Available from: http://hdl.handle.net/2376/537

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Brno University of Technology

24. Sedlář, Tomáš. Simulace odvodu tepla výkonového prvku do okolí: Simulation of heat dissipation for power component.

Degree: 2018, Brno University of Technology

URL: http://hdl.handle.net/11012/59935

► The diploma thesis deals with the simulation of heat dissipation for LED Seoul SZ5-P. The heat transfer is discussed first. Further, the issue of thermal… (more)

Subjects/Keywords: Teplotní management; LED; 1W; Seoul SZ5-P; Ansys; Icepak; Odvod tepla; Chladič; Teplotní simulace; Thermal management; LED; 1W; Seoul SZ5-P; Ansys; Icepak; Heat dissipation; Cooler; Heat simulation

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APA (6^th Edition):

Sedlář, T. (2018). Simulace odvodu tepla výkonového prvku do okolí: Simulation of heat dissipation for power component. (Thesis). Brno University of Technology. Retrieved from http://hdl.handle.net/11012/59935

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Sedlář, Tomáš. “Simulace odvodu tepla výkonového prvku do okolí: Simulation of heat dissipation for power component.” 2018. Thesis, Brno University of Technology. Accessed March 08, 2021. http://hdl.handle.net/11012/59935.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Sedlář, Tomáš. “Simulace odvodu tepla výkonového prvku do okolí: Simulation of heat dissipation for power component.” 2018. Web. 08 Mar 2021.

Vancouver:

Sedlář T. Simulace odvodu tepla výkonového prvku do okolí: Simulation of heat dissipation for power component. [Internet] [Thesis]. Brno University of Technology; 2018. [cited 2021 Mar 08]. Available from: http://hdl.handle.net/11012/59935.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Sedlář T. Simulace odvodu tepla výkonového prvku do okolí: Simulation of heat dissipation for power component. [Thesis]. Brno University of Technology; 2018. Available from: http://hdl.handle.net/11012/59935

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

25. Moustafa, Abdel Rahman. Mesure thermographique des effets dissipatifs accompagnant le fretting : d'une construction rapide des cartes d'amorçage vers une meillleure compréhension des mécanismes d'endommagement : Thermographic measurement of dissipative effects under fretting loadings : from a first attempt for a rapid determination of the fretting maps, to a better understanding of the damage mechanisms.

Degree: Docteur es, Matériaux, 2016, Lyon

URL: http://www.theses.fr/2016LYSEC012

►

This study is part of an original approach based on quantitative imaging techniques, such as Infrared Thermography, to study the damage under fretting loadings. The… (more)

Subjects/Keywords: Fretting; Thermographie Infrarouge; Analyse Calorimétrique; Corrélation d'images; Mesure de Champs; Dissipation; Plasticité; Thermoélasticité; Sources de Chaleurs; Amorçage de fissures; Endommagement; Fretting; Infrared Thermography; Calorimetry; Digital Image Correlation (DIC); Full-field Measurements; Dissipation; Plasticity; Thermoelasticity; Heat sources; Crack Initiation; Damage

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APA (6^th Edition):

Moustafa, A. R. (2016). Mesure thermographique des effets dissipatifs accompagnant le fretting : d'une construction rapide des cartes d'amorçage vers une meillleure compréhension des mécanismes d'endommagement : Thermographic measurement of dissipative effects under fretting loadings : from a first attempt for a rapid determination of the fretting maps, to a better understanding of the damage mechanisms. (Doctoral Dissertation). Lyon. Retrieved from http://www.theses.fr/2016LYSEC012

Chicago Manual of Style (16^th Edition):

Moustafa, Abdel Rahman. “Mesure thermographique des effets dissipatifs accompagnant le fretting : d'une construction rapide des cartes d'amorçage vers une meillleure compréhension des mécanismes d'endommagement : Thermographic measurement of dissipative effects under fretting loadings : from a first attempt for a rapid determination of the fretting maps, to a better understanding of the damage mechanisms.” 2016. Doctoral Dissertation, Lyon. Accessed March 08, 2021. http://www.theses.fr/2016LYSEC012.

MLA Handbook (7^th Edition):

Moustafa, Abdel Rahman. “Mesure thermographique des effets dissipatifs accompagnant le fretting : d'une construction rapide des cartes d'amorçage vers une meillleure compréhension des mécanismes d'endommagement : Thermographic measurement of dissipative effects under fretting loadings : from a first attempt for a rapid determination of the fretting maps, to a better understanding of the damage mechanisms.” 2016. Web. 08 Mar 2021.

Vancouver:

Moustafa AR. Mesure thermographique des effets dissipatifs accompagnant le fretting : d'une construction rapide des cartes d'amorçage vers une meillleure compréhension des mécanismes d'endommagement : Thermographic measurement of dissipative effects under fretting loadings : from a first attempt for a rapid determination of the fretting maps, to a better understanding of the damage mechanisms. [Internet] [Doctoral dissertation]. Lyon; 2016. [cited 2021 Mar 08]. Available from: http://www.theses.fr/2016LYSEC012.

Council of Science Editors:

Moustafa AR. Mesure thermographique des effets dissipatifs accompagnant le fretting : d'une construction rapide des cartes d'amorçage vers une meillleure compréhension des mécanismes d'endommagement : Thermographic measurement of dissipative effects under fretting loadings : from a first attempt for a rapid determination of the fretting maps, to a better understanding of the damage mechanisms. [Doctoral Dissertation]. Lyon; 2016. Available from: http://www.theses.fr/2016LYSEC012

INP Toulouse

26. Brebion, Maxence. Joint numerical and experimental study of thermoacoustic instabilities : Etude conjointe numérique et expérimentale des instabilités thermoacoustiques.

Degree: Docteur es, Dynamique des fluides, 2017, INP Toulouse

URL: http://www.theses.fr/2017INPT0010

►

Les instabilités thermo-acoustiques se rencontrent fréquemment au sein des chambres de combustion de toute taille, de la petite chaudière au moteur de fusée. Ces instabilités… (more)

▼

Les instabilités thermo-acoustiques se rencontrent fréquemment au sein des chambres de combustion de toute taille, de la petite chaudière au moteur de fusée. Ces instabilités sont causées par le couplage entre ondes acoustiques et dégagement de chaleur instationnaire. En effet, le passage d'une onde acoustique au travers d'une flamme va moduler son dégagement de chaleur qui, en retour, va générer de nouvelles ondes acoustiques. Lorsqu'une chambre de combustion entre en instabilité, d'importantes variations de pression sont observées ; ces fluctuations peuvent user prématurément le système ou altérer ses performances. L'étude des instabilités thermo-acoustiques a pour but d'améliorer notre compréhension de ces phénomènes complexes afin de les prévenir. L'objectif de ce travail est d'obtenir et d'intégrer au sein de modèles réduits des descriptions précises de la dissipation acoustique – effet stabilisant - et d'interaction flamme/acoustique – effet déstabilisant. Cette étude se décompose en trois axes : La première partie développe le concept de « modèle acoustique réduit » qui permet de prédire les modes acoustiques d'une chambre de combustion. Pour cela, sont prises en compte les dissipations inhérentes à certaines pièces(diaphragmes, injecteurs, ...) ainsi que le couplage flamme/acoustique. Une fois le modèle établi, il convient d'en chercher les solutions à l'aide d'un solveur numérique spécialement conçu pour cette tâche. Dans une deuxième partie, un banc expérimental est utilisé pour caractériser le lien entre perte de charge et dissipation acoustique. Il est montré de manière théorique et expérimentale que la connaissance des pertes de charge au travers d'un élément permet de prédire son comportement acoustique à basse fréquence. La dernière partie concerne le couplage flamme/acoustique et plus spécifiquement l'influence de la température de l'accroche-flamme :une flamme pauvre pré-mélangée air/méthane est stabilisée sur un cylindre dont la température peut être contrôlée. Ainsi, il est montré que l'influence de la température du cylindre sur la flamme – position d'équilibre, dynamique et stabilité - est remarquable.

From small scale energy systems such as domestic boilers up to rocket motors, combustion chambers are often prone to combustion instabilities. These instabilities stem from the coupling of unsteady heat release rate and acoustic waves. This coupling is two sided: flame front perturbations generate acoustic waves while acoustic waves impinging on flame holders can disturb flames attached on them. Important pressure and velocity oscillations can be reached during unstable regimes, that can alter its efficiency or even damage the entire combustion chamber. One major challenge is to understand, predict, and prevent from these combustion instabilities. The objectives of this thesis are twofold: (1) take into account acoustic dissipation and (2)analyze flame/acoustic coupling to obtain Reduced Order Model (ROM) for combustion instabilities. This work is divided into three parts. First, the concept of…

Advisors/Committee Members: Poinsot, Thierry (thesis director), Selle, Laurent (thesis director).

Subjects/Keywords: Instabilité de combustion; Fonction de transfert de flamme; Transfert de chaleur; Dissipation acoustique; Perte de charge; Modèle réseau acoustique; Combustion instability; Flame transfer function; Heat-transfer; Acoustic dissipation; Pressure loss; Network model; 530

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APA (6^th Edition):

Brebion, M. (2017). Joint numerical and experimental study of thermoacoustic instabilities : Etude conjointe numérique et expérimentale des instabilités thermoacoustiques. (Doctoral Dissertation). INP Toulouse. Retrieved from http://www.theses.fr/2017INPT0010

Chicago Manual of Style (16^th Edition):

Brebion, Maxence. “Joint numerical and experimental study of thermoacoustic instabilities : Etude conjointe numérique et expérimentale des instabilités thermoacoustiques.” 2017. Doctoral Dissertation, INP Toulouse. Accessed March 08, 2021. http://www.theses.fr/2017INPT0010.

MLA Handbook (7^th Edition):

Brebion, Maxence. “Joint numerical and experimental study of thermoacoustic instabilities : Etude conjointe numérique et expérimentale des instabilités thermoacoustiques.” 2017. Web. 08 Mar 2021.

Vancouver:

Brebion M. Joint numerical and experimental study of thermoacoustic instabilities : Etude conjointe numérique et expérimentale des instabilités thermoacoustiques. [Internet] [Doctoral dissertation]. INP Toulouse; 2017. [cited 2021 Mar 08]. Available from: http://www.theses.fr/2017INPT0010.

Council of Science Editors:

Brebion M. Joint numerical and experimental study of thermoacoustic instabilities : Etude conjointe numérique et expérimentale des instabilités thermoacoustiques. [Doctoral Dissertation]. INP Toulouse; 2017. Available from: http://www.theses.fr/2017INPT0010

NSYSU

27. Wu, Chieh-Tsung. The Research of Industry Patent Application and Patent StrategyâComputer Heat Dissipation Industry.

Degree: Master, Business Management, 2006, NSYSU

URL: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0113106-123443

► In the age of Knowledge-based Economy, knowledge will become the main motive power of economic growth. Patent, as one of the indicators of intellectual properties,… (more)

Subjects/Keywords: Patent Strategy; Logistic Curve; Computer Heat Dissipation Industry; Patent Analysis

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APA (6^th Edition):

Wu, C. (2006). The Research of Industry Patent Application and Patent StrategyâComputer Heat Dissipation Industry. (Thesis). NSYSU. Retrieved from http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0113106-123443

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Wu, Chieh-Tsung. “The Research of Industry Patent Application and Patent StrategyâComputer Heat Dissipation Industry.” 2006. Thesis, NSYSU. Accessed March 08, 2021. http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0113106-123443.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Wu, Chieh-Tsung. “The Research of Industry Patent Application and Patent StrategyâComputer Heat Dissipation Industry.” 2006. Web. 08 Mar 2021.

Vancouver:

Wu C. The Research of Industry Patent Application and Patent StrategyâComputer Heat Dissipation Industry. [Internet] [Thesis]. NSYSU; 2006. [cited 2021 Mar 08]. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0113106-123443.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Wu C. The Research of Industry Patent Application and Patent StrategyâComputer Heat Dissipation Industry. [Thesis]. NSYSU; 2006. Available from: http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0113106-123443

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Michigan

28. Picard, Yoosuf N. Femtosecond laser induced thermal damage in thin films: The role of heat dissipation.

Degree: PhD, Materials science, 2006, University of Michigan

URL: http://hdl.handle.net/2027.42/126538

► This thesis reports investigations of the thermal modifications induced by ultra-short pulsed laser irradiation in thin films at fluences near and above ablation threshold. Specific… (more)

▼ This thesis reports investigations of the thermal modifications induced by ultra-short pulsed laser irradiation in thin films at fluences near and above ablation threshold. Specific work was aimed at understanding the role of heat dissipation in determining the nature and spatial extent of thermal processes induced by femtosecond laser irradiation. Thermal damage in the form of microstructural modifications, phase transitions, and/or chemical reactions was analyzed within, outside, and below areas of femtosecond laser irradiated surfaces. The thermal damage induced by femtosecond laser ablation of silicon thin foils was investigated by high resolution transmission electron microscopy. Extensive single-crystalline Si was observed at the ablated hole edges for irradiation near the ablation threshold. Higher fluence ablation produced hole edges exhibiting a strong amorphous content. The rate of lateral cooling following femtosecond laser irradiation is proposed to account for the resulting microstructure near femtosecond laser ablation. A nanoscale technique was developed for direct measurement of heat affected zones resulting from femtosecond laser ablation. The lateral extent of cobalt silicidation was measured by selected area diffraction and morphological investigations using transmission electron microscopy. Silicidation extending 3 mum from the edge of an ablated hole provided evidence of a zone where the local temperature reached ∼500°C. Evidence of Si recrystallization was observed within 1 mum of the ablated hole edge and validated by thermal modeling. Reactive multilayer films composed of Co/Al, Al/Pt, and Ti/Ni were irradiated by femtosecond and nanosecond pulsed lasers. Fluence thresholds for igniting self-propagating reactions were measured as a function of bilayer thickness. The resulting ignition thresholds versus bilayer thickness trends were nearly reciprocal that of reaction propagation speed versus bilayer thickness. The trend is indicative of a relationship between the ignition thresholds and the thermal damage necessary to achieve a critical volume of layer intermixing. Femtosecond laser ablation at lower fluences near ablation threshold showed evidence of single and multiple layer removal. Samples irradiated by nanosecond lasers of comparable fluence showed evidence of extensive intermixing with negligible material removal. Heat dissipation rates were observed to be an important factor for pulsed laser ignition of reactive multilayers based on numerical analysis and comparative ignition studies of three bimetallic systems. Advisors/Committee Members: Yalisove, Steven M. (advisor).

Subjects/Keywords: Damage; Dissipation; Femtosecond; Films; Heat; Induced; Laser; Role; Thermal; Thin

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Picard, Y. N. (2006). Femtosecond laser induced thermal damage in thin films: The role of heat dissipation. (Doctoral Dissertation). University of Michigan. Retrieved from http://hdl.handle.net/2027.42/126538

Chicago Manual of Style (16^th Edition):

Picard, Yoosuf N. “Femtosecond laser induced thermal damage in thin films: The role of heat dissipation.” 2006. Doctoral Dissertation, University of Michigan. Accessed March 08, 2021. http://hdl.handle.net/2027.42/126538.

MLA Handbook (7^th Edition):

Picard, Yoosuf N. “Femtosecond laser induced thermal damage in thin films: The role of heat dissipation.” 2006. Web. 08 Mar 2021.

Vancouver:

Picard YN. Femtosecond laser induced thermal damage in thin films: The role of heat dissipation. [Internet] [Doctoral dissertation]. University of Michigan; 2006. [cited 2021 Mar 08]. Available from: http://hdl.handle.net/2027.42/126538.

Council of Science Editors:

Picard YN. Femtosecond laser induced thermal damage in thin films: The role of heat dissipation. [Doctoral Dissertation]. University of Michigan; 2006. Available from: http://hdl.handle.net/2027.42/126538

29. Le Bloa, Gaël. Caractérisation du comportement sismique d’une connexion hybride plancher-voile utilisée comme rupteur de ponts thermiques : Characterization of the seismic behaviour of an hybrid wall-to-floor connection used as thermal break.

Degree: Docteur es, Génie civil, 2014, Rennes, INSA

URL: http://www.theses.fr/2014ISAR0027

►

L'objectif majeur de la présente thèse de doctorat est la validation structurelle d’une connexion hybride plancher-voile pour la reprise de l'action sismique dans les bâtiments… (more)

▼

L'objectif majeur de la présente thèse de doctorat est la validation structurelle d’une connexion hybride plancher-voile pour la reprise de l'action sismique dans les bâtiments en béton armé à voiles. Le manque de références normatives et scientifiques pour la caractérisation de ce type de système, nous a conduits à concevoir un protocole de caractérisation original basé principalement sur une analyse expérimentale à grande échelle du comportement de la liaison plancher-voile. Tout d'abord, nous présentons quelles ont été les problématiques et les exigences qui ont amené à l'innovation du rupteur de ponts thermiques SLABE, connexion hybride pour la jonction plancher-voile. Nous analysons ensuite les protocoles de caractérisation cyclique pour les systèmes structurels similaires ("coupling beams" ou "shearheads"). Sur base de cette réflexion, nous proposons un programme expérimental composé de trois séries d'essais: deux campagnes à grande échelle visant à restituer au mieux les configurations courantes de chargement dans un bâtiment (sollicitations horizontales et verticales), et une campagne d'essais d'ancrage. Ces essais sont capables de caractériser le comportement de la liaison dans les trois directions de l’espace. Les résultats de chaque campagne d'essais sont présentés dans le détail. Ils montrent notamment que la connexion étudiée, sous chargement cyclique, se comporte de façon quasi-élastique et stable pour les niveaux de charge correspondant aux sollicitations sismiques en France métropolitaine. De plus, ces essais ont souligné la grande réserve de ductilité du système, permettant une redistribution des efforts et contribuant ainsi à une meilleure robustesse du système, indispensable pour une sollicitation sismique présentant, par nature, un fort degré d’incertitude. Enfin, nous évaluons l'impact de la connexion plancher-voile sur le comportement structurel des bâtiments au travers d’une analyse structurelle sur des ouvrages de référence. Nous analysons la réponse modale et la redistribution des efforts entre les voiles de contreventement. Cette évaluation nous permet de définir une démarche de dimensionnement pour les ouvrages béton armé munis de ces éléments et de proposer des outils de calcul adaptés à l’ingénieur. L’exhaustivité de la démarche de validation présentée en fait une référence, déjà reconnue par les instances décernant les agréments techniques français, et qui pourrait être proposée comme protocole standard pour la validation des systèmes de rupteurs de ponts thermiques ou de liaison plancher-voile, au niveau européen.

The main objective of the PhD thesis is the structural evaluation of a hybrid structural connection at the slab-to-wall junction in concrete shear wall buildings under seismic action. The lack of normative and scientific literature for the characterization of this kind of systems leads us to devise an original protocol for the characterization which is mainly built on a large-scale experimental analysis of behaviour of the slab-towall connection. First, we explain the…

Advisors/Committee Members: Hjiaj, Mohammed (thesis director).

Subjects/Keywords: Connexion hybride acier-béton; Clé de cisaillement; Rupteur de pont thermique; Buildings – Earthquake effects; Earthquake engineering; Insulation (Heat); Buildings, Reinforced concrete; Energy dissipation; Floors, Concrete; 624

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Le Bloa, G. (2014). Caractérisation du comportement sismique d’une connexion hybride plancher-voile utilisée comme rupteur de ponts thermiques : Characterization of the seismic behaviour of an hybrid wall-to-floor connection used as thermal break. (Doctoral Dissertation). Rennes, INSA. Retrieved from http://www.theses.fr/2014ISAR0027

Chicago Manual of Style (16^th Edition):

Le Bloa, Gaël. “Caractérisation du comportement sismique d’une connexion hybride plancher-voile utilisée comme rupteur de ponts thermiques : Characterization of the seismic behaviour of an hybrid wall-to-floor connection used as thermal break.” 2014. Doctoral Dissertation, Rennes, INSA. Accessed March 08, 2021. http://www.theses.fr/2014ISAR0027.

MLA Handbook (7^th Edition):

Le Bloa, Gaël. “Caractérisation du comportement sismique d’une connexion hybride plancher-voile utilisée comme rupteur de ponts thermiques : Characterization of the seismic behaviour of an hybrid wall-to-floor connection used as thermal break.” 2014. Web. 08 Mar 2021.

Vancouver:

Le Bloa G. Caractérisation du comportement sismique d’une connexion hybride plancher-voile utilisée comme rupteur de ponts thermiques : Characterization of the seismic behaviour of an hybrid wall-to-floor connection used as thermal break. [Internet] [Doctoral dissertation]. Rennes, INSA; 2014. [cited 2021 Mar 08]. Available from: http://www.theses.fr/2014ISAR0027.

Council of Science Editors:

Le Bloa G. Caractérisation du comportement sismique d’une connexion hybride plancher-voile utilisée comme rupteur de ponts thermiques : Characterization of the seismic behaviour of an hybrid wall-to-floor connection used as thermal break. [Doctoral Dissertation]. Rennes, INSA; 2014. Available from: http://www.theses.fr/2014ISAR0027

30. Lindén, Ronja. Thermal analysis and design improvement of light module fixture.

Degree: Mechanical Engineering, 2016, Jönköping University

URL: http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-30485

► Introduction One of the products made by SAAB Avionics Systems in Jönköping was in need of a better cooling solution. The product, a Head-Up… (more)

▼ Introduction One of the products made by SAAB Avionics Systems in Jönköping was in need of a better cooling solution. The product, a Head-Up Display, holds a LED that was overheating when run at desired input power. The purpose of this thesis was to identify the design weaknesses in the current solution regarding heat dissipation and produce new design proposals that fulfill the requirements. The parts analyzed consist of a LED light source, adjustment plates and a heat sink. The adjustment plates and heat sink where covered in a surface treatment. Theoretical framework A simulation of a finite element model was set up of the current solution in order to identify the influence of the different parts and their thermal properties. The simulation was set up as a steady state thermal model. The FEM and steady state equations used during this are mentioned and shortly explained. The state of modern research was found in order to find new innovative ways of solving the heat problem. Method In order to understand the current solution, experimentswere carried out. Interviews were used in order to get the correct information easily. A literature study was preformed to understand the different theories. Reverse engineering was applied to get a detailed understanding of the functionality both mechanically and thermally. Brainstorming was used to generate new solutions, which was followed by a feasibility evaluation and Pugh’s method to sort out the best concepts. Implementation and Result Based on the simulations it can be concluded that some of the developed solutions pass the requirements and can be implemented right away. Some need some more work in order to fully pass the demands. Conclusions The thermal flow was greatly affected by the properties of the aluminum in the adjustment plates and heat sink, though there was not much room for thickness reduction. However, the oxide layer and the surface roughness also had a great impact on the high junction temperature. The requirements where therefore met when adjustment plates and interfaces were removed, to lower the amount of oxide and air between the LED and the heat sink. But the oxide layers needed to be thinner and the surface roughness needed to be reduced in order to meet requirements. If the oxide layers need to stay at current thickness or the surface roughness cannot be changed, the heat sink needs to be redesigned. The recommended concepts were smaller than the current solution. If this space is utilized with a bigger heat sink, the goals can be met with greater ease. There is also room for improvement when it comes to heat sink heat spreader pattern. Discussion The discussion covers what knowledge which was needed to write this thesis and how different problems that occurred along its path were solved. Sustainability in different ways was also discussed.

Subjects/Keywords: Projector; Heat dissipation; Steady State; FEM; concept generating; interfaces

…applied because of their ability to boost heat dissipation to heat sinks by an effective thermal… …temperatures T, power dissipation q, the effective heat transfer ℎ𝑒𝑒𝑒𝑒𝑒𝑒 and surface area… …high mechanical demands on the product. Generalized the main problem is to transport heat out… …more heat than the nearby components can lead away, resulting in degraded performance. As a… …cooling solution consists of a hollow heat sink, which is fed air with a fan via inlets and…

13 more images…

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APA (6^th Edition):

Lindén, R. (2016). Thermal analysis and design improvement of light module fixture. (Thesis). Jönköping University. Retrieved from http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-30485

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Lindén, Ronja. “Thermal analysis and design improvement of light module fixture.” 2016. Thesis, Jönköping University. Accessed March 08, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-30485.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Lindén, Ronja. “Thermal analysis and design improvement of light module fixture.” 2016. Web. 08 Mar 2021.

Vancouver:

Lindén R. Thermal analysis and design improvement of light module fixture. [Internet] [Thesis]. Jönköping University; 2016. [cited 2021 Mar 08]. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-30485.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Lindén R. Thermal analysis and design improvement of light module fixture. [Thesis]. Jönköping University; 2016. Available from: http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-30485

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

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And / Or
		in
And / Or
		in

Open Access Theses and Dissertations