Constructal design of isothermal x-shaped cavities
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/1/4908 |
Resumo: | This paper applies constructal design to study the geometry of a X-shaped cavity that penetrates into a solid conducting wall. The objective is to minimize the maximal dimensionless excess of temperature between the solid body and the cavity. There is uniform heat generation on the solid body. The total volume and the cavity volume are fixed, but the geometric lengths and thickness of the X-shaped cavity can vary. The cavity surfaces are isothermal while the solid body has adiabatic conditions on the outer surface. The emerged optimal configurations and performance are reported graphically. When compared to the Y- and C- and H-, the X-shaped cavity performs approximately 53% better than the Y-shaped cavity and 68% better than the C-shaped cavity for the area fraction φ = 0.05, while its performance is 22% inferior to the performance of the H-shaped cavity for the area fraction φ = 0.1. The results indicate that the increase of the complexity of the cavity geometry can facilitate the access of heat currents and improve the performance of the cavities. |
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Constructal design of isothermal x-shaped cavitiesConstructal designEnhanced heat transferCavitiesThis paper applies constructal design to study the geometry of a X-shaped cavity that penetrates into a solid conducting wall. The objective is to minimize the maximal dimensionless excess of temperature between the solid body and the cavity. There is uniform heat generation on the solid body. The total volume and the cavity volume are fixed, but the geometric lengths and thickness of the X-shaped cavity can vary. The cavity surfaces are isothermal while the solid body has adiabatic conditions on the outer surface. The emerged optimal configurations and performance are reported graphically. When compared to the Y- and C- and H-, the X-shaped cavity performs approximately 53% better than the Y-shaped cavity and 68% better than the C-shaped cavity for the area fraction φ = 0.05, while its performance is 22% inferior to the performance of the H-shaped cavity for the area fraction φ = 0.1. The results indicate that the increase of the complexity of the cavity geometry can facilitate the access of heat currents and improve the performance of the cavities.2015-05-27T22:26:32Z2015-05-27T22:26:32Z2014info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfLORENZINI, Giulio et al. Constructal design of isothermal x-shaped cavities. Thermal Science, v. 18, n. 2, p. 349-356, 2014. Disponível em: <http://www.doiserbia.nb.rs/img/doi/0354-9836/2014/0354-98361300005L.pdf>. Acesso em: 23 maio 2015.0354-9836http://repositorio.furg.br/handle/1/490810.2298/TSCI120804005LengLorenzini, GiulioBiserni, CesareLink, Fernanda BichetSantos, Elizaldo Domingues dosIsoldi, Liércio AndréRocha, Luiz Alberto Oliveirainfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da FURG (RI FURG)instname:Universidade Federal do Rio Grande (FURG)instacron:FURG2015-05-27T22:26:32Zoai:repositorio.furg.br:1/4908Repositório InstitucionalPUBhttps://repositorio.furg.br/oai/request || http://200.19.254.174/oai/requestopendoar:2015-05-27T22:26:32Repositório Institucional da FURG (RI FURG) - Universidade Federal do Rio Grande (FURG)false |
dc.title.none.fl_str_mv |
Constructal design of isothermal x-shaped cavities |
title |
Constructal design of isothermal x-shaped cavities |
spellingShingle |
Constructal design of isothermal x-shaped cavities Lorenzini, Giulio Constructal design Enhanced heat transfer Cavities |
title_short |
Constructal design of isothermal x-shaped cavities |
title_full |
Constructal design of isothermal x-shaped cavities |
title_fullStr |
Constructal design of isothermal x-shaped cavities |
title_full_unstemmed |
Constructal design of isothermal x-shaped cavities |
title_sort |
Constructal design of isothermal x-shaped cavities |
author |
Lorenzini, Giulio |
author_facet |
Lorenzini, Giulio Biserni, Cesare Link, Fernanda Bichet Santos, Elizaldo Domingues dos Isoldi, Liércio André Rocha, Luiz Alberto Oliveira |
author_role |
author |
author2 |
Biserni, Cesare Link, Fernanda Bichet Santos, Elizaldo Domingues dos Isoldi, Liércio André Rocha, Luiz Alberto Oliveira |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Lorenzini, Giulio Biserni, Cesare Link, Fernanda Bichet Santos, Elizaldo Domingues dos Isoldi, Liércio André Rocha, Luiz Alberto Oliveira |
dc.subject.por.fl_str_mv |
Constructal design Enhanced heat transfer Cavities |
topic |
Constructal design Enhanced heat transfer Cavities |
description |
This paper applies constructal design to study the geometry of a X-shaped cavity that penetrates into a solid conducting wall. The objective is to minimize the maximal dimensionless excess of temperature between the solid body and the cavity. There is uniform heat generation on the solid body. The total volume and the cavity volume are fixed, but the geometric lengths and thickness of the X-shaped cavity can vary. The cavity surfaces are isothermal while the solid body has adiabatic conditions on the outer surface. The emerged optimal configurations and performance are reported graphically. When compared to the Y- and C- and H-, the X-shaped cavity performs approximately 53% better than the Y-shaped cavity and 68% better than the C-shaped cavity for the area fraction φ = 0.05, while its performance is 22% inferior to the performance of the H-shaped cavity for the area fraction φ = 0.1. The results indicate that the increase of the complexity of the cavity geometry can facilitate the access of heat currents and improve the performance of the cavities. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014 2015-05-27T22:26:32Z 2015-05-27T22:26:32Z |
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 |
LORENZINI, Giulio et al. Constructal design of isothermal x-shaped cavities. Thermal Science, v. 18, n. 2, p. 349-356, 2014. Disponível em: <http://www.doiserbia.nb.rs/img/doi/0354-9836/2014/0354-98361300005L.pdf>. Acesso em: 23 maio 2015. 0354-9836 http://repositorio.furg.br/handle/1/4908 10.2298/TSCI120804005L |
identifier_str_mv |
LORENZINI, Giulio et al. Constructal design of isothermal x-shaped cavities. Thermal Science, v. 18, n. 2, p. 349-356, 2014. Disponível em: <http://www.doiserbia.nb.rs/img/doi/0354-9836/2014/0354-98361300005L.pdf>. Acesso em: 23 maio 2015. 0354-9836 10.2298/TSCI120804005L |
url |
http://repositorio.furg.br/handle/1/4908 |
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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1807384411645149184 |