Thermal efficiency of metal foams on pool boiling
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , |
Tipo de documento: | Artigo de conferência |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1088/1742-6596/2116/1/012005 http://hdl.handle.net/11449/223198 |
Resumo: | This paper presents an experimental work on pool boiling using HFE-7100 at saturated conditions, under atmospheric pressure, and copper and nickel foams as the heating surface with four different thicknesses varying between 0.5 mm and 3 mm, followed by an analysis of the effect of foam fin-efficiency based on Ghosh model. All foams showed a better heat transfer coefficient (HTC) than the plain surface; however, as the heat flux increased, the HTC from the thicker nickel foams decreased due to the bubble vapor flow inside the foam. On the other hand, the thinner nickel foam showed better HTC at high heat fluxes with a maximum enhancement of 120%. The foam efficiency presented a similar tendency with the HTC, i.e., as the thickness decreases the efficiency increases; however, as compared with copper foams with a similar area but different porous diameter, the copper foams are 40% more efficient than the nickel ones due to the foam material, which has a thermal conductivity 4.5 times higher. |
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Thermal efficiency of metal foams on pool boilingThis paper presents an experimental work on pool boiling using HFE-7100 at saturated conditions, under atmospheric pressure, and copper and nickel foams as the heating surface with four different thicknesses varying between 0.5 mm and 3 mm, followed by an analysis of the effect of foam fin-efficiency based on Ghosh model. All foams showed a better heat transfer coefficient (HTC) than the plain surface; however, as the heat flux increased, the HTC from the thicker nickel foams decreased due to the bubble vapor flow inside the foam. On the other hand, the thinner nickel foam showed better HTC at high heat fluxes with a maximum enhancement of 120%. The foam efficiency presented a similar tendency with the HTC, i.e., as the thickness decreases the efficiency increases; however, as compared with copper foams with a similar area but different porous diameter, the copper foams are 40% more efficient than the nickel ones due to the foam material, which has a thermal conductivity 4.5 times higher.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Universidade Estadual PaulistaFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Fundació Catalana de TrasplantamentUNESP - São Paulo State University School of Engineering, Av. Brasil, 56, SPIFMS Federal Institute of Education Science and Technology of Mato Grosso do Sul Campus Campo Grande, MSIN+ Dep. Mechanical Engineering Instituto Superior Técnico Universidade de LisboaCINAMIL Dep. Mechanical Engineering Portuguese Military AcademyUNESP São Paulo State University Campus of São João da Boa Vista, SPUNESP - São Paulo State University School of Engineering, Av. Brasil, 56, SPUNESP São Paulo State University Campus of São João da Boa Vista, SPFAPESP: 2013/15431-7FAPESP: 2017/13813-0FAPESP: 2019/02566-8FAPESP: 2019/15250-9CNPq: 458702/2014-5Fundació Catalana de Trasplantament: JICAM/0003/2017Universidade Estadual Paulista (UNESP)Science and Technology of Mato Grosso do SulUniversidade de LisboaPortuguese Military AcademyManetti, L. L. [UNESP]Moita, A. S.Cardoso, E. M. [UNESP]2022-04-28T19:49:09Z2022-04-28T19:49:09Z2021-12-08info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjecthttp://dx.doi.org/10.1088/1742-6596/2116/1/012005Journal of Physics: Conference Series, v. 2116, n. 1, 2021.1742-65961742-6588http://hdl.handle.net/11449/22319810.1088/1742-6596/2116/1/0120052-s2.0-85122482195Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Physics: Conference Seriesinfo:eu-repo/semantics/openAccess2022-04-28T19:49:09Zoai:repositorio.unesp.br:11449/223198Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T18:02:45.622498Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Thermal efficiency of metal foams on pool boiling |
title |
Thermal efficiency of metal foams on pool boiling |
spellingShingle |
Thermal efficiency of metal foams on pool boiling Manetti, L. L. [UNESP] |
title_short |
Thermal efficiency of metal foams on pool boiling |
title_full |
Thermal efficiency of metal foams on pool boiling |
title_fullStr |
Thermal efficiency of metal foams on pool boiling |
title_full_unstemmed |
Thermal efficiency of metal foams on pool boiling |
title_sort |
Thermal efficiency of metal foams on pool boiling |
author |
Manetti, L. L. [UNESP] |
author_facet |
Manetti, L. L. [UNESP] Moita, A. S. Cardoso, E. M. [UNESP] |
author_role |
author |
author2 |
Moita, A. S. Cardoso, E. M. [UNESP] |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) Science and Technology of Mato Grosso do Sul Universidade de Lisboa Portuguese Military Academy |
dc.contributor.author.fl_str_mv |
Manetti, L. L. [UNESP] Moita, A. S. Cardoso, E. M. [UNESP] |
description |
This paper presents an experimental work on pool boiling using HFE-7100 at saturated conditions, under atmospheric pressure, and copper and nickel foams as the heating surface with four different thicknesses varying between 0.5 mm and 3 mm, followed by an analysis of the effect of foam fin-efficiency based on Ghosh model. All foams showed a better heat transfer coefficient (HTC) than the plain surface; however, as the heat flux increased, the HTC from the thicker nickel foams decreased due to the bubble vapor flow inside the foam. On the other hand, the thinner nickel foam showed better HTC at high heat fluxes with a maximum enhancement of 120%. The foam efficiency presented a similar tendency with the HTC, i.e., as the thickness decreases the efficiency increases; however, as compared with copper foams with a similar area but different porous diameter, the copper foams are 40% more efficient than the nickel ones due to the foam material, which has a thermal conductivity 4.5 times higher. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-12-08 2022-04-28T19:49:09Z 2022-04-28T19:49:09Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/conferenceObject |
format |
conferenceObject |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1088/1742-6596/2116/1/012005 Journal of Physics: Conference Series, v. 2116, n. 1, 2021. 1742-6596 1742-6588 http://hdl.handle.net/11449/223198 10.1088/1742-6596/2116/1/012005 2-s2.0-85122482195 |
url |
http://dx.doi.org/10.1088/1742-6596/2116/1/012005 http://hdl.handle.net/11449/223198 |
identifier_str_mv |
Journal of Physics: Conference Series, v. 2116, n. 1, 2021. 1742-6596 1742-6588 10.1088/1742-6596/2116/1/012005 2-s2.0-85122482195 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of Physics: Conference Series |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
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1808128888741560320 |