Pool boiling performance of HFE-7100 on hierarchically structured surfaces
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.csite.2021.101536 http://hdl.handle.net/11449/222582 |
Resumo: | The evolution of the processes for modifying/manufacturing surfaces has facilitated the advancement in pool boiling research with surfaces capable of increasing the heat transfer coefficient (HTC) and the critical heat flux (CHF) through micro/nanostructures heating surfaces. The hybrid processes, which associate the removal or addition of material for the formation of microstructures followed by the addition of material for nanostructure formation, combine the benefits achieved with different intensification techniques in search of superior performance in boiling heat transfer. The thermal performance of pool boiling on surfaces with a combination of microfins and nanostructured surfaces, through nanoparticle deposition, was studied by using HFE-7100 at saturated conditions. The microtextured surfaces were nanostructured by boiling alumina nanofluid with 0.0007 vol%, applying a fixed heat flux of 500 kW/m2. The experimental boiling tests on hierarchical surfaces indicate a significant enhancement in the HTC (up to 65% compared to the microtextured surfaces) due to improved density of nucleation site and vapor bubble dynamics. The maximum heat flux corresponds to the maximum experimental heat transfer coefficient; the nanoparticle deposition on microtextured surfaces enhances the liquid absorption capacity, improving the surface's rewetting and delaying the dryout occurrence. |
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Repositório Institucional da UNESP |
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Pool boiling performance of HFE-7100 on hierarchically structured surfacesHeat transfer performanceHierarchically structured surfacesMaximum heat fluxPool boilingThe evolution of the processes for modifying/manufacturing surfaces has facilitated the advancement in pool boiling research with surfaces capable of increasing the heat transfer coefficient (HTC) and the critical heat flux (CHF) through micro/nanostructures heating surfaces. The hybrid processes, which associate the removal or addition of material for the formation of microstructures followed by the addition of material for nanostructure formation, combine the benefits achieved with different intensification techniques in search of superior performance in boiling heat transfer. The thermal performance of pool boiling on surfaces with a combination of microfins and nanostructured surfaces, through nanoparticle deposition, was studied by using HFE-7100 at saturated conditions. The microtextured surfaces were nanostructured by boiling alumina nanofluid with 0.0007 vol%, applying a fixed heat flux of 500 kW/m2. The experimental boiling tests on hierarchical surfaces indicate a significant enhancement in the HTC (up to 65% compared to the microtextured surfaces) due to improved density of nucleation site and vapor bubble dynamics. The maximum heat flux corresponds to the maximum experimental heat transfer coefficient; the nanoparticle deposition on microtextured surfaces enhances the liquid absorption capacity, improving the surface's rewetting and delaying the dryout occurrence.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Heat Transfer Research Group Department of Mechanical Engineering São Carlos School of Engineering (EESC) University of São Paulo (USP), Av. Trabalhador São Carlense, 400UNESP - São Paulo State University School of Engineering Post-Graduation Program in Mechanical Engineering, Av. Brasil, 56UNIGRAN - Centro Universitário da Grande Dourados, Balbina de Matos 2121, Jd. UniversitárioUNESP - São Paulo State University, Câmpus of São João da Boa VistaUNESP - São Paulo State University School of Engineering Post-Graduation Program in Mechanical Engineering, Av. Brasil, 56UNESP - São Paulo State University, Câmpus of São João da Boa VistaFAPESP: 2013/15431-7FAPESP: 2014/07949-9FAPESP: 2014/19497-5FAPESP: 2017/04276-1FAPESP: 2019/02566-8CNPq: 458702/2014-5CAPES: 88882.433639/2019-01Universidade de São Paulo (USP)Universidade Estadual Paulista (UNESP)UNIGRAN - Centro Universitário da Grande Douradosdos Santos Filho, EriveltoKiyomura, Igor Seicho [UNESP]Alves de Andrade, Bruno [UNESP]Cardoso, Elaine Maria [UNESP]2022-04-28T19:45:30Z2022-04-28T19:45:30Z2021-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.csite.2021.101536Case Studies in Thermal Engineering, v. 28.2214-157Xhttp://hdl.handle.net/11449/22258210.1016/j.csite.2021.1015362-s2.0-85116557737Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengCase Studies in Thermal Engineeringinfo:eu-repo/semantics/openAccess2022-04-28T19:45:30Zoai:repositorio.unesp.br:11449/222582Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T20:09:12.085103Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Pool boiling performance of HFE-7100 on hierarchically structured surfaces |
title |
Pool boiling performance of HFE-7100 on hierarchically structured surfaces |
spellingShingle |
Pool boiling performance of HFE-7100 on hierarchically structured surfaces dos Santos Filho, Erivelto Heat transfer performance Hierarchically structured surfaces Maximum heat flux Pool boiling |
title_short |
Pool boiling performance of HFE-7100 on hierarchically structured surfaces |
title_full |
Pool boiling performance of HFE-7100 on hierarchically structured surfaces |
title_fullStr |
Pool boiling performance of HFE-7100 on hierarchically structured surfaces |
title_full_unstemmed |
Pool boiling performance of HFE-7100 on hierarchically structured surfaces |
title_sort |
Pool boiling performance of HFE-7100 on hierarchically structured surfaces |
author |
dos Santos Filho, Erivelto |
author_facet |
dos Santos Filho, Erivelto Kiyomura, Igor Seicho [UNESP] Alves de Andrade, Bruno [UNESP] Cardoso, Elaine Maria [UNESP] |
author_role |
author |
author2 |
Kiyomura, Igor Seicho [UNESP] Alves de Andrade, Bruno [UNESP] Cardoso, Elaine Maria [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade de São Paulo (USP) Universidade Estadual Paulista (UNESP) UNIGRAN - Centro Universitário da Grande Dourados |
dc.contributor.author.fl_str_mv |
dos Santos Filho, Erivelto Kiyomura, Igor Seicho [UNESP] Alves de Andrade, Bruno [UNESP] Cardoso, Elaine Maria [UNESP] |
dc.subject.por.fl_str_mv |
Heat transfer performance Hierarchically structured surfaces Maximum heat flux Pool boiling |
topic |
Heat transfer performance Hierarchically structured surfaces Maximum heat flux Pool boiling |
description |
The evolution of the processes for modifying/manufacturing surfaces has facilitated the advancement in pool boiling research with surfaces capable of increasing the heat transfer coefficient (HTC) and the critical heat flux (CHF) through micro/nanostructures heating surfaces. The hybrid processes, which associate the removal or addition of material for the formation of microstructures followed by the addition of material for nanostructure formation, combine the benefits achieved with different intensification techniques in search of superior performance in boiling heat transfer. The thermal performance of pool boiling on surfaces with a combination of microfins and nanostructured surfaces, through nanoparticle deposition, was studied by using HFE-7100 at saturated conditions. The microtextured surfaces were nanostructured by boiling alumina nanofluid with 0.0007 vol%, applying a fixed heat flux of 500 kW/m2. The experimental boiling tests on hierarchical surfaces indicate a significant enhancement in the HTC (up to 65% compared to the microtextured surfaces) due to improved density of nucleation site and vapor bubble dynamics. The maximum heat flux corresponds to the maximum experimental heat transfer coefficient; the nanoparticle deposition on microtextured surfaces enhances the liquid absorption capacity, improving the surface's rewetting and delaying the dryout occurrence. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-12-01 2022-04-28T19:45:30Z 2022-04-28T19:45:30Z |
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 |
http://dx.doi.org/10.1016/j.csite.2021.101536 Case Studies in Thermal Engineering, v. 28. 2214-157X http://hdl.handle.net/11449/222582 10.1016/j.csite.2021.101536 2-s2.0-85116557737 |
url |
http://dx.doi.org/10.1016/j.csite.2021.101536 http://hdl.handle.net/11449/222582 |
identifier_str_mv |
Case Studies in Thermal Engineering, v. 28. 2214-157X 10.1016/j.csite.2021.101536 2-s2.0-85116557737 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Case Studies in Thermal Engineering |
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 |
|
_version_ |
1808129165688307712 |