subject:(Superadiabatic combustion)

1. Vandadi, Vahid. Modeling Ultra-lean Superadiabatic Combustion in Multi-scale Porous Burner with Augmented Heat Recirculation and Preheating.

Degree: 2015, University of Nevada – Reno

URL: http://hdl.handle.net/11714/2618

► A novel design of porous burner using an external preheater combined with internal heat recirculation and radiation corridors is presented to utilize the superadiabatic temperature… (more)

Subjects/Keywords: Combustion; Flame; Porous; Recirculation; Superadiabatic; Ultra-lean

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APA (6^th Edition):

Vandadi, V. (2015). Modeling Ultra-lean Superadiabatic Combustion in Multi-scale Porous Burner with Augmented Heat Recirculation and Preheating. (Thesis). University of Nevada – Reno. Retrieved from http://hdl.handle.net/11714/2618

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):

Vandadi, Vahid. “Modeling Ultra-lean Superadiabatic Combustion in Multi-scale Porous Burner with Augmented Heat Recirculation and Preheating.” 2015. Thesis, University of Nevada – Reno. Accessed April 16, 2021. http://hdl.handle.net/11714/2618.

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

MLA Handbook (7^th Edition):

Vandadi, Vahid. “Modeling Ultra-lean Superadiabatic Combustion in Multi-scale Porous Burner with Augmented Heat Recirculation and Preheating.” 2015. Web. 16 Apr 2021.

Vancouver:

Vandadi V. Modeling Ultra-lean Superadiabatic Combustion in Multi-scale Porous Burner with Augmented Heat Recirculation and Preheating. [Internet] [Thesis]. University of Nevada – Reno; 2015. [cited 2021 Apr 16]. Available from: http://hdl.handle.net/11714/2618.

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

Council of Science Editors:

Vandadi V. Modeling Ultra-lean Superadiabatic Combustion in Multi-scale Porous Burner with Augmented Heat Recirculation and Preheating. [Thesis]. University of Nevada – Reno; 2015. Available from: http://hdl.handle.net/11714/2618

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

University of Cambridge

2. Pastore, Andrea. Syngas production from heavy liquid fuel reforming in inert porous media.

Degree: PhD, 2010, University of Cambridge

URL: http://www.dspace.cam.ac.uk/handle/1810/237704https://www.repository.cam.ac.uk/bitstream/1810/237704/2/license.txt ; https://www.repository.cam.ac.uk/bitstream/1810/237704/5/thesis.pdf.txt ; https://www.repository.cam.ac.uk/bitstream/1810/237704/6/thesis.pdf.jpg

► In the effort to introduce fuel cell technology in the field of decentralized and mobile power generators, a hydrocarbon reformer to syngas seems to be… (more)

▼ In the effort to introduce fuel cell technology in the field of decentralized and mobile power generators, a hydrocarbon reformer to syngas seems to be the way for the market uptake. In this thesis, a potential technology is developed and investigated, in order to convert commercial liquid fuel (diesel, kerosene and biodiesel) to syngas. The fundamental concept is to oxidise the fuel in a oxygen depleted environment, obtaining hydrogen and carbon monoxide as main products of the reaction. In order to extend the flammability limit of hydrocarbon/air mixtures, the rich combustion experiments have been carried out in a two-layer porous medium combustor, which stabilises a flame at the matrix interface and recirculates the enthalpy of the hot products in order to enhance the reaction rates at ultra-rich equivalence ratio. This thesis demonstrates the feasibility of the concept, by exploring characteristic parameters for a compact, reliable and cost effective device. Specifically, a range of equivalence ratios, thermal loads and porous materials have been examined. n-heptane was successfully reformed up to an equivalence ratio of 3, reaching a conversion efficiency (based on the lower heating value of H2 and CO over the fuel input) up to 75% for a packed bed of alumina beads. Thermal loads from P=2 to 12 kW at phi=2.0 demonstrated that heat losses can be reduced to 10%. Similarly, diesel, kerosene and bio-diesel were reformed to syngas in a Zirconia foam burner with conversion efficiency over 60%. The effect of different burners, thermal loads and equivalence ratios have also been assessed for these commercial fuels, leading to equivalent conclusions. A preliminary attempt to reduce the content of CO and hydrocarbons in the reformate has been also performed using commercial steam reforming and water-gas shift reaction catalysts, obtaining encouraging results. Finally, soot emission has been assessed, demonstrating particle formation for all the fuels above phi=2.0, with biodiesel showing the lowest soot formation tendency among all the fuels tested.

Subjects/Keywords: Syngas production; Rich combustion; Porous burner; Superadiabatic combustion; Fuel reforming

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

APA (6^th Edition):

Pastore, A. (2010). Syngas production from heavy liquid fuel reforming in inert porous media. (Doctoral Dissertation). University of Cambridge. Retrieved from http://www.dspace.cam.ac.uk/handle/1810/237704https://www.repository.cam.ac.uk/bitstream/1810/237704/2/license.txt ; https://www.repository.cam.ac.uk/bitstream/1810/237704/5/thesis.pdf.txt ; https://www.repository.cam.ac.uk/bitstream/1810/237704/6/thesis.pdf.jpg

Chicago Manual of Style (16^th Edition):

Pastore, Andrea. “Syngas production from heavy liquid fuel reforming in inert porous media.” 2010. Doctoral Dissertation, University of Cambridge. Accessed April 16, 2021. http://www.dspace.cam.ac.uk/handle/1810/237704https://www.repository.cam.ac.uk/bitstream/1810/237704/2/license.txt ; https://www.repository.cam.ac.uk/bitstream/1810/237704/5/thesis.pdf.txt ; https://www.repository.cam.ac.uk/bitstream/1810/237704/6/thesis.pdf.jpg.

MLA Handbook (7^th Edition):

Pastore, Andrea. “Syngas production from heavy liquid fuel reforming in inert porous media.” 2010. Web. 16 Apr 2021.

Vancouver:

Pastore A. Syngas production from heavy liquid fuel reforming in inert porous media. [Internet] [Doctoral dissertation]. University of Cambridge; 2010. [cited 2021 Apr 16]. Available from: http://www.dspace.cam.ac.uk/handle/1810/237704https://www.repository.cam.ac.uk/bitstream/1810/237704/2/license.txt ; https://www.repository.cam.ac.uk/bitstream/1810/237704/5/thesis.pdf.txt ; https://www.repository.cam.ac.uk/bitstream/1810/237704/6/thesis.pdf.jpg.

Council of Science Editors:

Pastore A. Syngas production from heavy liquid fuel reforming in inert porous media. [Doctoral Dissertation]. University of Cambridge; 2010. Available from: http://www.dspace.cam.ac.uk/handle/1810/237704https://www.repository.cam.ac.uk/bitstream/1810/237704/2/license.txt ; https://www.repository.cam.ac.uk/bitstream/1810/237704/5/thesis.pdf.txt ; https://www.repository.cam.ac.uk/bitstream/1810/237704/6/thesis.pdf.jpg

University of Cambridge

3. Pastore, Andrea. Syngas production from heavy liquid fuel reforming in inert porous media.

Degree: PhD, 2010, University of Cambridge

URL: https://doi.org/10.17863/CAM.13997 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.541795

► In the effort to introduce fuel cell technology in the field of decentralized and mobile power generators, a hydrocarbon reformer to syngas seems to be… (more)

▼ In the effort to introduce fuel cell technology in the field of decentralized and mobile power generators, a hydrocarbon reformer to syngas seems to be the way for the market uptake. In this thesis, a potential technology is developed and investigated, in order to convert commercial liquid fuel (diesel, kerosene and biodiesel) to syngas. The fundamental concept is to oxidise the fuel in a oxygen depleted environment, obtaining hydrogen and carbon monoxide as main products of the reaction. In order to extend the flammability limit of hydrocarbon/air mixtures, the rich combustion experiments have been carried out in a two-layer porous medium combustor, which stabilises a flame at the matrix interface and recirculates the enthalpy of the hot products in order to enhance the reaction rates at ultra-rich equivalence ratio. This thesis demonstrates the feasibility of the concept, by exploring characteristic parameters for a compact, reliable and cost effective device. Specifically, a range of equivalence ratios, thermal loads and porous materials have been examined. n-heptane was successfully reformed up to an equivalence ratio of 3, reaching a conversion efficiency (based on the lower heating value of H2 and CO over the fuel input) up to 75% for a packed bed of alumina beads. Thermal loads from P=2 to 12 kW at phi=2.0 demonstrated that heat losses can be reduced to 10%.Similarly, diesel, kerosene and bio-diesel were reformed to syngas in a Zirconia foam burner with conversion efficiency over 60%. The effect of different burners, thermal loads and equivalence ratios have also been assessed for these commercial fuels, leading to equivalent conclusions. A preliminary attempt to reduce the content of CO and hydrocarbons in the reformate has been also performed using commercial steam reforming and water-gas shift reaction catalysts, obtaining encouraging results. Finally, soot emission has been assessed, demonstrating particle formation for all the fuels above phi=2.0, with biodiesel showingthe lowest soot formation tendency among all the fuels tested.

Subjects/Keywords: 662; Syngas production; Rich combustion; Porous burner; Superadiabatic combustion; Fuel reforming

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

APA (6^th Edition):

Pastore, A. (2010). Syngas production from heavy liquid fuel reforming in inert porous media. (Doctoral Dissertation). University of Cambridge. Retrieved from https://doi.org/10.17863/CAM.13997 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.541795

Chicago Manual of Style (16^th Edition):

Pastore, Andrea. “Syngas production from heavy liquid fuel reforming in inert porous media.” 2010. Doctoral Dissertation, University of Cambridge. Accessed April 16, 2021. https://doi.org/10.17863/CAM.13997 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.541795.

MLA Handbook (7^th Edition):

Pastore, Andrea. “Syngas production from heavy liquid fuel reforming in inert porous media.” 2010. Web. 16 Apr 2021.

Vancouver:

Pastore A. Syngas production from heavy liquid fuel reforming in inert porous media. [Internet] [Doctoral dissertation]. University of Cambridge; 2010. [cited 2021 Apr 16]. Available from: https://doi.org/10.17863/CAM.13997 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.541795.

Council of Science Editors:

Pastore A. Syngas production from heavy liquid fuel reforming in inert porous media. [Doctoral Dissertation]. University of Cambridge; 2010. Available from: https://doi.org/10.17863/CAM.13997 ; https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.541795

University of Central Florida

4. Terracciano, Anthony. Design and Development of Heterogenous Combustion Systems for Lean Burn Applications.

Degree: 2014, University of Central Florida

URL: https://stars.library.ucf.edu/etd/4513

► Combustion with a high surface area continuous solid immersed within the flame, referred to as combustion in porous media, is an innovative approach to combustion… (more)

Subjects/Keywords: Combustion in porous media; heterogeneous combustion; superadiabatic combustion; filtration combustion; matrix stabilized combustion; silicon carbide; sic; combustion; methane; lean; nox; exhaust gas recirculation; egr; reactor length; surface area; estimation surface area; modeling; reactor design; liquid combustion; fuel evaporation; premixed combustion; radiative emitter; pilot flame; Engineering; Mechanical Engineering; Dissertations, Academic – Engineering and Computer Science; Engineering and Computer Science – Dissertations, Academic

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

APA (6^th Edition):

Terracciano, A. (2014). Design and Development of Heterogenous Combustion Systems for Lean Burn Applications. (Masters Thesis). University of Central Florida. Retrieved from https://stars.library.ucf.edu/etd/4513

Chicago Manual of Style (16^th Edition):

Terracciano, Anthony. “Design and Development of Heterogenous Combustion Systems for Lean Burn Applications.” 2014. Masters Thesis, University of Central Florida. Accessed April 16, 2021. https://stars.library.ucf.edu/etd/4513.

MLA Handbook (7^th Edition):

Terracciano, Anthony. “Design and Development of Heterogenous Combustion Systems for Lean Burn Applications.” 2014. Web. 16 Apr 2021.

Vancouver:

Terracciano A. Design and Development of Heterogenous Combustion Systems for Lean Burn Applications. [Internet] [Masters thesis]. University of Central Florida; 2014. [cited 2021 Apr 16]. Available from: https://stars.library.ucf.edu/etd/4513.

Council of Science Editors:

Terracciano A. Design and Development of Heterogenous Combustion Systems for Lean Burn Applications. [Masters Thesis]. University of Central Florida; 2014. Available from: https://stars.library.ucf.edu/etd/4513

5. Schoegl, Ingmar Michael. Superadiabatic combustion in counter-flow heat exchangers.

Degree: PhD, Mechanical Engineering, 2009, University of Texas – Austin

URL: http://hdl.handle.net/2152/10622

► Syngas, a combustible gaseous mixture of hydrogen, carbon monoxide, and other species, is a promising fuel for efficient energy conversion technologies. Syngas is produced by… (more)

▼ Syngas, a combustible gaseous mixture of hydrogen, carbon monoxide, and other species, is a promising fuel for efficient energy conversion technologies. Syngas is produced by breaking down a primary fuel into a hydrogen-rich mixture in a process called fuel reforming. The motivation for the utilization of syngas rather than the primary fuel is that syngas can be used in energy conversion technologies that offer higher conversion efficiencies, e.g. gas turbines and fuel cells. One approach for syngas production is partial oxidation, which is an oxygen starved combustion process that does not require a catalyst. Efficient conversion to syngas occurs at high levels of oxygen depletion, resulting in mixtures that are not flammable in conventional combustion applications. In non-catalytic partial oxidation, internal heat recirculation is used to increase the local reaction temperatures by transferring heat from the product stream to pre-heat the fuel/air mixture before reactions occur, thus increasing reaction rates and allowing for combustion outside the conventional flammability limits. As peak temperatures lie above the adiabatic equilibrium temperature predicted by thermodynamic calculations, the combustion regime used for non-catalytic fuel reforming is referred to as 'superadiabatic'. Counter-flow heat exchange is an effective way to transfer heat between adjacent channels and is used for a novel, heat-recirculating fuel reformer design. An analytical study predicts that combustion zone locations inside adjacent flow channels adjust to operating conditions, thus stabilizing the process for independent variations of flow velocities and mixture compositions. In experiments, a reactor prototype with four channels with alternating flow directions is developed and investigated. Tests with methane/air and propane/air mixtures validate the operating principle, and measurements of the resulting syngas compositions verify the feasibility of the concept for practical fuel-reformer applications. Results from a two-dimensional numerical study with detailed reaction chemistry are consistent with experimental observations. Details of the reaction zone reveal that reactions are initiated in the vicinity of the channel walls, resulting in "tulip"-shaped reaction layers. Overall, results confirm the viability of the non-catalytic reactor design for fuel reforming applications. Advisors/Committee Members: Ellzey, Janet L. (advisor).

Subjects/Keywords: Syngas; Energy conversion technologies; Oxidation; Superadiabatic combustion; Counter-flow heat exchangers; Fuel reforming

…3 1.2 Review of Superadiabatic Combustion . . . . . . . . . . . . . . . . . . . 6… …resulting in superadiabatic temperatures. The increased combustion temperatures enhance the… …1.2 Review of Superadiabatic Combustion Ideas fundamental to superadiabatic combustion were… …1993), resulting in combustion at superadiabatic temperatures. 1.2.1 Heat… …Kotani and Takeno (1982) demonstrated that combustion with superadiabatic peak…

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

APA (6^th Edition):

Schoegl, I. M. (2009). Superadiabatic combustion in counter-flow heat exchangers. (Doctoral Dissertation). University of Texas – Austin. Retrieved from http://hdl.handle.net/2152/10622

Chicago Manual of Style (16^th Edition):

Schoegl, Ingmar Michael. “Superadiabatic combustion in counter-flow heat exchangers.” 2009. Doctoral Dissertation, University of Texas – Austin. Accessed April 16, 2021. http://hdl.handle.net/2152/10622.

MLA Handbook (7^th Edition):

Schoegl, Ingmar Michael. “Superadiabatic combustion in counter-flow heat exchangers.” 2009. Web. 16 Apr 2021.

Vancouver:

Schoegl IM. Superadiabatic combustion in counter-flow heat exchangers. [Internet] [Doctoral dissertation]. University of Texas – Austin; 2009. [cited 2021 Apr 16]. Available from: http://hdl.handle.net/2152/10622.

Council of Science Editors:

Schoegl IM. Superadiabatic combustion in counter-flow heat exchangers. [Doctoral Dissertation]. University of Texas – Austin; 2009. Available from: http://hdl.handle.net/2152/10622

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