A conjugate heat transfer model for heat load prediction in combustion devices
(2006) 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:
https://lup.lub.lu.se/record/616927
- author
- Bahador, Mehdi LU and Sundén, Bengt LU
- organization
- publishing date
- 2006
- 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
- host publication
- 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
- conference location
- San Francisco, CA, United States
- conference dates
- 2006-06-05 - 2006-06-08
- 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
- 2016-04-04 11:58:00
- date last changed
- 2022-01-29 22:41:53
@inproceedings{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}}, booktitle = {{Collection of Technical Papers - 9th AIAA/ASME Joint Thermophysics and Heat Transfer Conference Proceedings}}, keywords = {{Gas turbine combustors; Eddy Dissipation Concept (EDC); Ribbed duct cooling; Radiative heat transfer}}, language = {{eng}}, pages = {{1813--1819}}, publisher = {{American Institute of Aeronautics and Astronautics}}, title = {{A conjugate heat transfer model for heat load prediction in combustion devices}}, url = {{http://aiaa.org/agenda.cfm?lumeetingid=1190&formatview=1&dateget=07-Jun-06}}, volume = {{3}}, year = {{2006}}, }