Comparison of the standard weighted-sum-of-gray-gases with the absorption-line blackbody distribution function for the computation of radiative heat transfer in H2O/CO2 mixtures

Detalhes bibliográficos
Autor(a) principal: Maurente, André Jesus Soares
Data de Publicação: 2008
Outros Autores: Vielmo, Horácio Antonio, França, Francis Henrique Ramos
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRN
Texto Completo: https://repositorio.ufrn.br/handle/123456789/31910
Resumo: This paper presents the computation of radiation heat transfer in a cylindrical enclosure in which the dimensions, the chemical species concentrations and the temperature fields make a realistic representation of an actual combustion chamber. Two gas models are applied and compared: the absorption-line blackbody distribution function (ALBDF), and the standard weighted-sum-of-gray-gases (WSGG) based on coefficients and correlations that are widely used in engineering. While the standard WSGG is restricted to the assumption of homogeneous gas mixture, the ALBDF can be applied to both homogeneous and non-homogeneous media. For the two gas models, the radiative exchanges are computed with the aid of the Monte Carlo method. The results show considerable discrepancies between the WSGG and the ALBDF models for the homogeneous medium. In addition, the importance of considering the non-homogeneity of the medium for an accurate computation of the radiative heat transfer is shown. r 2008 Elsevier Ltd. All rights reserved
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spelling Maurente, André Jesus SoaresVielmo, Horácio AntonioFrança, Francis Henrique Ramos2021-03-17T17:47:54Z2021-03-17T17:47:54Z2008-07MAURENTE, A.; VIELMO, H.A.; FRANÇA, F.H.R.. Comparison of the standard weighted-sum-of-gray-gases with the absorption-line blackbody distribution function for the computation of radiative heat transfer in H2O/CO2 mixtures. Journal of Quantitative Spectroscopy and Radiative Transfer, [S.L.], v. 109, n. 10, p. 1758-1770, jul. 2008. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0022407308000277. Acesso em: 10 nov. 2020. http://dx.doi.org/10.1016/j.jqsrt.2008.02.006.0022-4073https://repositorio.ufrn.br/handle/123456789/3191010.1016/j.jqsrt.2008.02.006ElsevierAttribution-NonCommercial-NoDerivs 3.0 Brazilhttp://creativecommons.org/licenses/by-nc-nd/3.0/br/info:eu-repo/semantics/openAccessRadiative transferGas modelsMonte CarloAbsorption-line blackbody distribution function;Weighted-sum-of-gray-gasesCombustion systemsComparison of the standard weighted-sum-of-gray-gases with the absorption-line blackbody distribution function for the computation of radiative heat transfer in H2O/CO2 mixturesinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleThis paper presents the computation of radiation heat transfer in a cylindrical enclosure in which the dimensions, the chemical species concentrations and the temperature fields make a realistic representation of an actual combustion chamber. Two gas models are applied and compared: the absorption-line blackbody distribution function (ALBDF), and the standard weighted-sum-of-gray-gases (WSGG) based on coefficients and correlations that are widely used in engineering. While the standard WSGG is restricted to the assumption of homogeneous gas mixture, the ALBDF can be applied to both homogeneous and non-homogeneous media. For the two gas models, the radiative exchanges are computed with the aid of the Monte Carlo method. The results show considerable discrepancies between the WSGG and the ALBDF models for the homogeneous medium. In addition, the importance of considering the non-homogeneity of the medium for an accurate computation of the radiative heat transfer is shown. r 2008 Elsevier Ltd. 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dc.title.pt_BR.fl_str_mv Comparison of the standard weighted-sum-of-gray-gases with the absorption-line blackbody distribution function for the computation of radiative heat transfer in H2O/CO2 mixtures
title Comparison of the standard weighted-sum-of-gray-gases with the absorption-line blackbody distribution function for the computation of radiative heat transfer in H2O/CO2 mixtures
spellingShingle Comparison of the standard weighted-sum-of-gray-gases with the absorption-line blackbody distribution function for the computation of radiative heat transfer in H2O/CO2 mixtures
Maurente, André Jesus Soares
Radiative transfer
Gas models
Monte Carlo
Absorption-line blackbody distribution function;
Weighted-sum-of-gray-gases
Combustion systems
title_short Comparison of the standard weighted-sum-of-gray-gases with the absorption-line blackbody distribution function for the computation of radiative heat transfer in H2O/CO2 mixtures
title_full Comparison of the standard weighted-sum-of-gray-gases with the absorption-line blackbody distribution function for the computation of radiative heat transfer in H2O/CO2 mixtures
title_fullStr Comparison of the standard weighted-sum-of-gray-gases with the absorption-line blackbody distribution function for the computation of radiative heat transfer in H2O/CO2 mixtures
title_full_unstemmed Comparison of the standard weighted-sum-of-gray-gases with the absorption-line blackbody distribution function for the computation of radiative heat transfer in H2O/CO2 mixtures
title_sort Comparison of the standard weighted-sum-of-gray-gases with the absorption-line blackbody distribution function for the computation of radiative heat transfer in H2O/CO2 mixtures
author Maurente, André Jesus Soares
author_facet Maurente, André Jesus Soares
Vielmo, Horácio Antonio
França, Francis Henrique Ramos
author_role author
author2 Vielmo, Horácio Antonio
França, Francis Henrique Ramos
author2_role author
author
dc.contributor.author.fl_str_mv Maurente, André Jesus Soares
Vielmo, Horácio Antonio
França, Francis Henrique Ramos
dc.subject.por.fl_str_mv Radiative transfer
Gas models
Monte Carlo
Absorption-line blackbody distribution function;
Weighted-sum-of-gray-gases
Combustion systems
topic Radiative transfer
Gas models
Monte Carlo
Absorption-line blackbody distribution function;
Weighted-sum-of-gray-gases
Combustion systems
description This paper presents the computation of radiation heat transfer in a cylindrical enclosure in which the dimensions, the chemical species concentrations and the temperature fields make a realistic representation of an actual combustion chamber. Two gas models are applied and compared: the absorption-line blackbody distribution function (ALBDF), and the standard weighted-sum-of-gray-gases (WSGG) based on coefficients and correlations that are widely used in engineering. While the standard WSGG is restricted to the assumption of homogeneous gas mixture, the ALBDF can be applied to both homogeneous and non-homogeneous media. For the two gas models, the radiative exchanges are computed with the aid of the Monte Carlo method. The results show considerable discrepancies between the WSGG and the ALBDF models for the homogeneous medium. In addition, the importance of considering the non-homogeneity of the medium for an accurate computation of the radiative heat transfer is shown. r 2008 Elsevier Ltd. All rights reserved
publishDate 2008
dc.date.issued.fl_str_mv 2008-07
dc.date.accessioned.fl_str_mv 2021-03-17T17:47:54Z
dc.date.available.fl_str_mv 2021-03-17T17:47:54Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.citation.fl_str_mv MAURENTE, A.; VIELMO, H.A.; FRANÇA, F.H.R.. Comparison of the standard weighted-sum-of-gray-gases with the absorption-line blackbody distribution function for the computation of radiative heat transfer in H2O/CO2 mixtures. Journal of Quantitative Spectroscopy and Radiative Transfer, [S.L.], v. 109, n. 10, p. 1758-1770, jul. 2008. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0022407308000277. Acesso em: 10 nov. 2020. http://dx.doi.org/10.1016/j.jqsrt.2008.02.006.
dc.identifier.uri.fl_str_mv https://repositorio.ufrn.br/handle/123456789/31910
dc.identifier.issn.none.fl_str_mv 0022-4073
dc.identifier.doi.none.fl_str_mv 10.1016/j.jqsrt.2008.02.006
identifier_str_mv MAURENTE, A.; VIELMO, H.A.; FRANÇA, F.H.R.. Comparison of the standard weighted-sum-of-gray-gases with the absorption-line blackbody distribution function for the computation of radiative heat transfer in H2O/CO2 mixtures. Journal of Quantitative Spectroscopy and Radiative Transfer, [S.L.], v. 109, n. 10, p. 1758-1770, jul. 2008. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0022407308000277. Acesso em: 10 nov. 2020. http://dx.doi.org/10.1016/j.jqsrt.2008.02.006.
0022-4073
10.1016/j.jqsrt.2008.02.006
url https://repositorio.ufrn.br/handle/123456789/31910
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv Attribution-NonCommercial-NoDerivs 3.0 Brazil
http://creativecommons.org/licenses/by-nc-nd/3.0/br/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution-NonCommercial-NoDerivs 3.0 Brazil
http://creativecommons.org/licenses/by-nc-nd/3.0/br/
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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