Radiation heat transfer in a gas slab with properties characteristics of a jet engine combustor

Due to economic and environmental reasons, there is an important demand to improve durability and fuel efficiency of jet engines for commercial aviation. Computer simulations are largely employed with the goal of gaining knowledge for design and optimization of the engines. Simulations are increasin...

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Principais autores: Maurente, André Jesus Soares, Alves, Camilo G.
Formato: article
Idioma:English
Publicado em: Elsevier
Assuntos:
Line-by-line radiation heat transfer
Jet engine combustor
Participating gases
H2O-CO2-CO gas mixture
Endereço do item:https://repositorio.ufrn.br/handle/123456789/31906
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spelling ri-123456789-319062023-02-07T20:20:23Z Radiation heat transfer in a gas slab with properties characteristics of a jet engine combustor Maurente, André Jesus Soares Alves, Camilo G. Line-by-line radiation heat transfer Jet engine combustor Participating gases H2O-CO2-CO gas mixture Due to economic and environmental reasons, there is an important demand to improve durability and fuel efficiency of jet engines for commercial aviation. Computer simulations are largely employed with the goal of gaining knowledge for design and optimization of the engines. Simulations are increasingly realistic, tanking into account complex coupled phenomena. However, radiation is often either neglected or included using quite simple models for the spectral dependence of the radiative properties. In this paper, the radiative transfer is accurately solved line-by-line for a one-dimensional gas slab with temperature, pressure and H2O, CO2 and CO molar fractions encountered in a jet engine combustor. These gas properties were selected from results obtained by a CFD simulation of a jet engine combustor-turbine, which was accomplished by researchers of NASA John H. Glenn Research Center, considering a realistic geometry and high-fidelity models for combustion, fuel injection and turbulence. The line-by-line solution obtained for such realistic gas serves as benchmark to simpler spectral models which could be further applied in highly computational time consuming coupled simulations of jet engines. In addition, the obtained results allowed to estimate the radiative heat transfer to critical regions of the engine and verify the relative importance of emitting/absorbing species, showing that CO2 has minor importance, while the H2O dominates the radiative transfer 2021-03-17T12:37:38Z 2021-03-17T12:37:38Z 2019-12 article MAURENTE, André; ALVES, Camilo G.. Radiation heat transfer in a gas slab with properties characteristics of a jet engine combustor. International Journal Of Heat And Mass Transfer, [S.L.], v. 145, dez. 2019. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0017931019328303. Acesso em: 10 nov. 2020. 0017-9310 https://repositorio.ufrn.br/handle/123456789/31906 10.1016/j.ijheatmasstransfer.2019.118734 en Elsevier
institution Repositório Institucional
collection RI - UFRN
language English
topic Line-by-line radiation heat transfer
Jet engine combustor
Participating gases
H2O-CO2-CO gas mixture
spellingShingle Line-by-line radiation heat transfer
Jet engine combustor
Participating gases
H2O-CO2-CO gas mixture
Maurente, André Jesus Soares
Alves, Camilo G.
Radiation heat transfer in a gas slab with properties characteristics of a jet engine combustor
description Due to economic and environmental reasons, there is an important demand to improve durability and fuel efficiency of jet engines for commercial aviation. Computer simulations are largely employed with the goal of gaining knowledge for design and optimization of the engines. Simulations are increasingly realistic, tanking into account complex coupled phenomena. However, radiation is often either neglected or included using quite simple models for the spectral dependence of the radiative properties. In this paper, the radiative transfer is accurately solved line-by-line for a one-dimensional gas slab with temperature, pressure and H2O, CO2 and CO molar fractions encountered in a jet engine combustor. These gas properties were selected from results obtained by a CFD simulation of a jet engine combustor-turbine, which was accomplished by researchers of NASA John H. Glenn Research Center, considering a realistic geometry and high-fidelity models for combustion, fuel injection and turbulence. The line-by-line solution obtained for such realistic gas serves as benchmark to simpler spectral models which could be further applied in highly computational time consuming coupled simulations of jet engines. In addition, the obtained results allowed to estimate the radiative heat transfer to critical regions of the engine and verify the relative importance of emitting/absorbing species, showing that CO2 has minor importance, while the H2O dominates the radiative transfer
format article
author Maurente, André Jesus Soares
Alves, Camilo G.
author_facet Maurente, André Jesus Soares
Alves, Camilo G.
author_sort Maurente, André Jesus Soares
title Radiation heat transfer in a gas slab with properties characteristics of a jet engine combustor
title_short Radiation heat transfer in a gas slab with properties characteristics of a jet engine combustor
title_full Radiation heat transfer in a gas slab with properties characteristics of a jet engine combustor
title_fullStr Radiation heat transfer in a gas slab with properties characteristics of a jet engine combustor
title_full_unstemmed Radiation heat transfer in a gas slab with properties characteristics of a jet engine combustor
title_sort radiation heat transfer in a gas slab with properties characteristics of a jet engine combustor
publisher Elsevier
publishDate 2021
url https://repositorio.ufrn.br/handle/123456789/31906
work_keys_str_mv AT maurenteandrejesussoares radiationheattransferinagasslabwithpropertiescharacteristicsofajetenginecombustor
AT alvescamilog radiationheattransferinagasslabwithpropertiescharacteristicsofajetenginecombustor
_version_ 1773959202024194048

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