Constructal design of a x-shaped cavity cooled by convection
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da FURG (RI FURG) |
Texto Completo: | http://repositorio.furg.br/handle/1/4983 |
Resumo: | This paper applies Constructal design to study the geometry of a X-shaped cavity that penetrates into a solid conductive wall. The objective is minimizing the dimensionless maximal excess of temperature between the solid body and the cavity. There is uniform heat generation on the solid body. The cavity surfaces are cooled by convection heat transfer while the solid body is subjected to adiabatic conditions on its outer surfaces. The total volume and the cavity volume are fixed, but the lengths and thickness of the X-shaped cavity can vary. The emerged optimal configurations and performance are reported. The effect of the area fraction φ which denotes the ratio between the cavity area and the total area of the geometry, and the ratio between the length and thickness of the branch cavity, H1/L1, on the dimensionless maximal excess of temperature is numerically investigated. The results show that the dimensionless maximal excess of temperature θmax,min decreases approximately 60% when the cavity fraction increases from φ = 0.05 to 0.25. The results also show that the X-shaped cavity performs approximately 45% better when compared to a C-shaped cavity under the same thermal conditions. The optimal X-shaped cavity is also in accordance with the optimal distribution of imperfections principle. |
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Repositório Institucional da FURG (RI FURG) |
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Constructal design of a x-shaped cavity cooled by convectionConstructal designCavitiesHeat generationThis paper applies Constructal design to study the geometry of a X-shaped cavity that penetrates into a solid conductive wall. The objective is minimizing the dimensionless maximal excess of temperature between the solid body and the cavity. There is uniform heat generation on the solid body. The cavity surfaces are cooled by convection heat transfer while the solid body is subjected to adiabatic conditions on its outer surfaces. The total volume and the cavity volume are fixed, but the lengths and thickness of the X-shaped cavity can vary. The emerged optimal configurations and performance are reported. The effect of the area fraction φ which denotes the ratio between the cavity area and the total area of the geometry, and the ratio between the length and thickness of the branch cavity, H1/L1, on the dimensionless maximal excess of temperature is numerically investigated. The results show that the dimensionless maximal excess of temperature θmax,min decreases approximately 60% when the cavity fraction increases from φ = 0.05 to 0.25. The results also show that the X-shaped cavity performs approximately 45% better when compared to a C-shaped cavity under the same thermal conditions. The optimal X-shaped cavity is also in accordance with the optimal distribution of imperfections principle.2015-06-01T00:50:46Z2015-06-01T00:50:46Z2014info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfLINK, Fernanda Bichet et al. Constructal design of a x-shaped cavity cooled by convection. Engenharia Térmica (Thermal Engineering), v. 13, n. 1, p. 54-58, 2014. Disponível em: <http://demec.ufpr.br/reterm/ed_ant/22/artigos/289-2013.pdf>. Acesso em: 23 maio 2015.1676-1790http://repositorio.furg.br/handle/1/4983engLink, Fernanda BichetRocha, Luiz Alberto OliveiraSantos, Elizaldo Domingues dosIsoldi, Liércio Andréinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da FURG (RI FURG)instname:Universidade Federal do Rio Grande (FURG)instacron:FURG2015-06-01T00:50:46Zoai:repositorio.furg.br:1/4983Repositório InstitucionalPUBhttps://repositorio.furg.br/oai/request || http://200.19.254.174/oai/requestopendoar:2015-06-01T00:50:46Repositório Institucional da FURG (RI FURG) - Universidade Federal do Rio Grande (FURG)false |
dc.title.none.fl_str_mv |
Constructal design of a x-shaped cavity cooled by convection |
title |
Constructal design of a x-shaped cavity cooled by convection |
spellingShingle |
Constructal design of a x-shaped cavity cooled by convection Link, Fernanda Bichet Constructal design Cavities Heat generation |
title_short |
Constructal design of a x-shaped cavity cooled by convection |
title_full |
Constructal design of a x-shaped cavity cooled by convection |
title_fullStr |
Constructal design of a x-shaped cavity cooled by convection |
title_full_unstemmed |
Constructal design of a x-shaped cavity cooled by convection |
title_sort |
Constructal design of a x-shaped cavity cooled by convection |
author |
Link, Fernanda Bichet |
author_facet |
Link, Fernanda Bichet Rocha, Luiz Alberto Oliveira Santos, Elizaldo Domingues dos Isoldi, Liércio André |
author_role |
author |
author2 |
Rocha, Luiz Alberto Oliveira Santos, Elizaldo Domingues dos Isoldi, Liércio André |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Link, Fernanda Bichet Rocha, Luiz Alberto Oliveira Santos, Elizaldo Domingues dos Isoldi, Liércio André |
dc.subject.por.fl_str_mv |
Constructal design Cavities Heat generation |
topic |
Constructal design Cavities Heat generation |
description |
This paper applies Constructal design to study the geometry of a X-shaped cavity that penetrates into a solid conductive wall. The objective is minimizing the dimensionless maximal excess of temperature between the solid body and the cavity. There is uniform heat generation on the solid body. The cavity surfaces are cooled by convection heat transfer while the solid body is subjected to adiabatic conditions on its outer surfaces. The total volume and the cavity volume are fixed, but the lengths and thickness of the X-shaped cavity can vary. The emerged optimal configurations and performance are reported. The effect of the area fraction φ which denotes the ratio between the cavity area and the total area of the geometry, and the ratio between the length and thickness of the branch cavity, H1/L1, on the dimensionless maximal excess of temperature is numerically investigated. The results show that the dimensionless maximal excess of temperature θmax,min decreases approximately 60% when the cavity fraction increases from φ = 0.05 to 0.25. The results also show that the X-shaped cavity performs approximately 45% better when compared to a C-shaped cavity under the same thermal conditions. The optimal X-shaped cavity is also in accordance with the optimal distribution of imperfections principle. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014 2015-06-01T00:50:46Z 2015-06-01T00:50:46Z |
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.uri.fl_str_mv |
LINK, Fernanda Bichet et al. Constructal design of a x-shaped cavity cooled by convection. Engenharia Térmica (Thermal Engineering), v. 13, n. 1, p. 54-58, 2014. Disponível em: <http://demec.ufpr.br/reterm/ed_ant/22/artigos/289-2013.pdf>. Acesso em: 23 maio 2015. 1676-1790 http://repositorio.furg.br/handle/1/4983 |
identifier_str_mv |
LINK, Fernanda Bichet et al. Constructal design of a x-shaped cavity cooled by convection. Engenharia Térmica (Thermal Engineering), v. 13, n. 1, p. 54-58, 2014. Disponível em: <http://demec.ufpr.br/reterm/ed_ant/22/artigos/289-2013.pdf>. Acesso em: 23 maio 2015. 1676-1790 |
url |
http://repositorio.furg.br/handle/1/4983 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da FURG (RI FURG) instname:Universidade Federal do Rio Grande (FURG) instacron:FURG |
instname_str |
Universidade Federal do Rio Grande (FURG) |
instacron_str |
FURG |
institution |
FURG |
reponame_str |
Repositório Institucional da FURG (RI FURG) |
collection |
Repositório Institucional da FURG (RI FURG) |
repository.name.fl_str_mv |
Repositório Institucional da FURG (RI FURG) - Universidade Federal do Rio Grande (FURG) |
repository.mail.fl_str_mv |
|
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1807384356604346368 |