Numerical study of the influence of internal heat source in naturally ventilated offices.
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFOP |
Texto Completo: | http://www.repositorio.ufop.br/handle/123456789/6778 http://dx.doi.org/10.1590/0370-44672015690099 |
Resumo: | The natural ventilation in a building performs a fundamental role in users' welfare and health, when used as a bioclimatic and architectural strategy, it can provide brighter projects. Increasing the indoor air speed ventilation has an important performance main¬taining indoor air quality, contributing to thermal interactions between human body and environment, which can significantly reduce the building’s energy cost. In this study, a numerical research of natural convection in single-sided and cross ventilation is developed using the finite volume method, taking account the internal heat sources influence. The numerical model is used to determine the effects of wind and thermal forces combined by analyzing the stream functions and temperature distribution within an office. The turbu¬lence model is the two differential equations for the low Reynolds number. The building’s internal heat sources influence is analyzed herein. The results show that the single-sided ventilation presents excellent conformity with the results obtained in literature. The influ¬ence of the internal heat source is considered and it has been observed that the best source position is near to the air exit for both single-sided ventilation and cross ventilation. |
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Rocha, Luiz Joaquim CardosoSouza, Henor Artur de2016-08-09T19:41:52Z2016-08-09T19:41:52Z2016ROCHA, L. J. C.; SOUZA, H. A. de. Numerical study of the influence of internal heat source in naturally ventilated offices. REM. Revista Escola de Minas, v. 69, p. 45-51, 2016. Disponível em: <http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0370-44672016000100045>. Acesso em: 11 jul. 2016.1807-0353http://www.repositorio.ufop.br/handle/123456789/6778http://dx.doi.org/10.1590/0370-44672015690099The natural ventilation in a building performs a fundamental role in users' welfare and health, when used as a bioclimatic and architectural strategy, it can provide brighter projects. Increasing the indoor air speed ventilation has an important performance main¬taining indoor air quality, contributing to thermal interactions between human body and environment, which can significantly reduce the building’s energy cost. In this study, a numerical research of natural convection in single-sided and cross ventilation is developed using the finite volume method, taking account the internal heat sources influence. The numerical model is used to determine the effects of wind and thermal forces combined by analyzing the stream functions and temperature distribution within an office. The turbu¬lence model is the two differential equations for the low Reynolds number. The building’s internal heat sources influence is analyzed herein. The results show that the single-sided ventilation presents excellent conformity with the results obtained in literature. The influ¬ence of the internal heat source is considered and it has been observed that the best source position is near to the air exit for both single-sided ventilation and cross ventilation.A Revista Escola de Minas - REM - autoriza o depósito de cópia de artigos dos professores e alunos da UFOP no Repositório Institucional da UFOP. Licença concedida mediante preenchimento de formulário online em: 12 set. 2013.info:eu-repo/semantics/openAccessNatural ventilationCross ventilationThermal comfortNumerical solutionSingle sided ventilationNumerical study of the influence of internal heat source in naturally ventilated offices.info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleengreponame:Repositório Institucional da UFOPinstname:Universidade Federal de Ouro Preto (UFOP)instacron:UFOPLICENSElicense.txtlicense.txttext/plain; charset=utf-8924http://www.repositorio.ufop.br/bitstream/123456789/6778/2/license.txt62604f8d955274beb56c80ce1ee5dcaeMD52ORIGINALARTIGO_NumericalStudyInfluence.pdfARTIGO_NumericalStudyInfluence.pdfapplication/pdf2213838http://www.repositorio.ufop.br/bitstream/123456789/6778/1/ARTIGO_NumericalStudyInfluence.pdfaaa17ca4d6873ded499fe4c067ed8c24MD51123456789/67782019-09-25 11:45:07.478oai:localhost: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ório InstitucionalPUBhttp://www.repositorio.ufop.br/oai/requestrepositorio@ufop.edu.bropendoar:32332019-09-25T15:45:07Repositório Institucional da UFOP - Universidade Federal de Ouro Preto (UFOP)false |
dc.title.pt_BR.fl_str_mv |
Numerical study of the influence of internal heat source in naturally ventilated offices. |
title |
Numerical study of the influence of internal heat source in naturally ventilated offices. |
spellingShingle |
Numerical study of the influence of internal heat source in naturally ventilated offices. Rocha, Luiz Joaquim Cardoso Natural ventilation Cross ventilation Thermal comfort Numerical solution Single sided ventilation |
title_short |
Numerical study of the influence of internal heat source in naturally ventilated offices. |
title_full |
Numerical study of the influence of internal heat source in naturally ventilated offices. |
title_fullStr |
Numerical study of the influence of internal heat source in naturally ventilated offices. |
title_full_unstemmed |
Numerical study of the influence of internal heat source in naturally ventilated offices. |
title_sort |
Numerical study of the influence of internal heat source in naturally ventilated offices. |
author |
Rocha, Luiz Joaquim Cardoso |
author_facet |
Rocha, Luiz Joaquim Cardoso Souza, Henor Artur de |
author_role |
author |
author2 |
Souza, Henor Artur de |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Rocha, Luiz Joaquim Cardoso Souza, Henor Artur de |
dc.subject.por.fl_str_mv |
Natural ventilation Cross ventilation Thermal comfort Numerical solution Single sided ventilation |
topic |
Natural ventilation Cross ventilation Thermal comfort Numerical solution Single sided ventilation |
description |
The natural ventilation in a building performs a fundamental role in users' welfare and health, when used as a bioclimatic and architectural strategy, it can provide brighter projects. Increasing the indoor air speed ventilation has an important performance main¬taining indoor air quality, contributing to thermal interactions between human body and environment, which can significantly reduce the building’s energy cost. In this study, a numerical research of natural convection in single-sided and cross ventilation is developed using the finite volume method, taking account the internal heat sources influence. The numerical model is used to determine the effects of wind and thermal forces combined by analyzing the stream functions and temperature distribution within an office. The turbu¬lence model is the two differential equations for the low Reynolds number. The building’s internal heat sources influence is analyzed herein. The results show that the single-sided ventilation presents excellent conformity with the results obtained in literature. The influ¬ence of the internal heat source is considered and it has been observed that the best source position is near to the air exit for both single-sided ventilation and cross ventilation. |
publishDate |
2016 |
dc.date.accessioned.fl_str_mv |
2016-08-09T19:41:52Z |
dc.date.available.fl_str_mv |
2016-08-09T19:41:52Z |
dc.date.issued.fl_str_mv |
2016 |
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 |
ROCHA, L. J. C.; SOUZA, H. A. de. Numerical study of the influence of internal heat source in naturally ventilated offices. REM. Revista Escola de Minas, v. 69, p. 45-51, 2016. Disponível em: <http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0370-44672016000100045>. Acesso em: 11 jul. 2016. |
dc.identifier.uri.fl_str_mv |
http://www.repositorio.ufop.br/handle/123456789/6778 |
dc.identifier.issn.none.fl_str_mv |
1807-0353 |
dc.identifier.doi.none.fl_str_mv |
http://dx.doi.org/10.1590/0370-44672015690099 |
identifier_str_mv |
ROCHA, L. J. C.; SOUZA, H. A. de. Numerical study of the influence of internal heat source in naturally ventilated offices. REM. Revista Escola de Minas, v. 69, p. 45-51, 2016. Disponível em: <http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0370-44672016000100045>. Acesso em: 11 jul. 2016. 1807-0353 |
url |
http://www.repositorio.ufop.br/handle/123456789/6778 http://dx.doi.org/10.1590/0370-44672015690099 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
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openAccess |
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reponame:Repositório Institucional da UFOP instname:Universidade Federal de Ouro Preto (UFOP) instacron:UFOP |
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Repositório Institucional da UFOP - Universidade Federal de Ouro Preto (UFOP) |
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