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A conjugate heat transfer model for heat load prediction in combustion devices

Bahador, Mehdi LU and Sundén, Bengt LU (2006) 9th AIAA/ASME Joint Thermophysics and Heat Transfer Conference Proceedings In Collection of Technical Papers - 9th AIAA/ASME Joint Thermophysics and Heat Transfer Conference Proceedings 3. p.1813-1819
Abstract
Different phenomena such as complex flow field and heat release by combustion are involved in the heat transfer process in combustion chambers. This paper concerns prediction of heat load and wail temperature in a gas turbine combustor by taking different phenomena into account. Two dimensional axi-symmetric models were used to model the flow field and combustion in a premised combustor with two different cooling schemes. The k-ε turbulence model and Eddy Dissipation Concept (EDC) were used for modeling turbulent flow and combustion, respectively. In the modeling of heat transfer through the walls, a conjugate heat transfer formulation was applied. The temperatures calculated by the models were compared with experimental data. The results... (More)
Different phenomena such as complex flow field and heat release by combustion are involved in the heat transfer process in combustion chambers. This paper concerns prediction of heat load and wail temperature in a gas turbine combustor by taking different phenomena into account. Two dimensional axi-symmetric models were used to model the flow field and combustion in a premised combustor with two different cooling schemes. The k-ε turbulence model and Eddy Dissipation Concept (EDC) were used for modeling turbulent flow and combustion, respectively. In the modeling of heat transfer through the walls, a conjugate heat transfer formulation was applied. The temperatures calculated by the models were compared with experimental data. The results showed that although worse agreement was found in some parts, however generally the trends of the temperature variations predicted very well. In addition, radiative heat transfer has been included in the study. The results showed that radiative heat transfer in simple and ribbed duct cooling schemes can increase the average inner wall temperature by to 33 and 40 K, respectively. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Gas turbine combustors, Eddy Dissipation Concept (EDC), Ribbed duct cooling, Radiative heat transfer
in
Collection of Technical Papers - 9th AIAA/ASME Joint Thermophysics and Heat Transfer Conference Proceedings
volume
3
pages
1813 - 1819
publisher
American Institute of Aeronautics and Astronautics
conference name
9th AIAA/ASME Joint Thermophysics and Heat Transfer Conference Proceedings
external identifiers
  • Scopus:33845515668
language
English
LU publication?
yes
id
8b27bb3c-6594-43a0-ad1e-2926181a8e5a (old id 616927)
alternative location
http://aiaa.org/agenda.cfm?lumeetingid=1190&formatview=1&dateget=07-Jun-06
date added to LUP
2007-11-24 09:23:19
date last changed
2016-10-13 04:48:49
@misc{8b27bb3c-6594-43a0-ad1e-2926181a8e5a,
  abstract     = {Different phenomena such as complex flow field and heat release by combustion are involved in the heat transfer process in combustion chambers. This paper concerns prediction of heat load and wail temperature in a gas turbine combustor by taking different phenomena into account. Two dimensional axi-symmetric models were used to model the flow field and combustion in a premised combustor with two different cooling schemes. The k-ε turbulence model and Eddy Dissipation Concept (EDC) were used for modeling turbulent flow and combustion, respectively. In the modeling of heat transfer through the walls, a conjugate heat transfer formulation was applied. The temperatures calculated by the models were compared with experimental data. The results showed that although worse agreement was found in some parts, however generally the trends of the temperature variations predicted very well. In addition, radiative heat transfer has been included in the study. The results showed that radiative heat transfer in simple and ribbed duct cooling schemes can increase the average inner wall temperature by to 33 and 40 K, respectively.},
  author       = {Bahador, Mehdi and Sundén, Bengt},
  keyword      = {Gas turbine combustors,Eddy Dissipation Concept (EDC),Ribbed duct cooling,Radiative heat transfer},
  language     = {eng},
  pages        = {1813--1819},
  publisher    = {ARRAY(0x9c7e6a8)},
  series       = {Collection of Technical Papers - 9th AIAA/ASME Joint Thermophysics and Heat Transfer Conference Proceedings},
  title        = {A conjugate heat transfer model for heat load prediction in combustion devices},
  volume       = {3},
  year         = {2006},
}