An innovative PDMS cell to improve the thermal conductivity measurements of nanofluids
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | https://hdl.handle.net/1822/87993 |
Resumo: | The traditional methods to measure the thermal conductivity of nanofluids (NFs) do not allow the investigation of critical features that affect the NF's heat transfer performance. For instance, during the thermal conductivity measurements, the NF's thermal properties may be subject to several critical features such as sedimentation, aggregation and wall adhesion of NPs. In addition, the measurement cell has severe functional limitations in terms of full cleaning and performing direct visualizations due mainly to design, geometrical and material constraints. These are frequent problems encountered at the transient hot-wire and transient plane source (TPS) methods, two popular techniques often used to measure NF's thermal conductivity. In this way, polydimethylsiloxane (PDMS), due to its unique properties, such as thermal stability and excellent optical transparency, was applied to fabricate an innovative and simple cell that offers a more straightforward and efficient way to clean the NPs deposited on the walls and as a result to avoid any possible sample contaminations. |
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An innovative PDMS cell to improve the thermal conductivity measurements of nanofluidsPDMS cellThermal conductivity measurementNanofluidsNanoparticlesThe traditional methods to measure the thermal conductivity of nanofluids (NFs) do not allow the investigation of critical features that affect the NF's heat transfer performance. For instance, during the thermal conductivity measurements, the NF's thermal properties may be subject to several critical features such as sedimentation, aggregation and wall adhesion of NPs. In addition, the measurement cell has severe functional limitations in terms of full cleaning and performing direct visualizations due mainly to design, geometrical and material constraints. These are frequent problems encountered at the transient hot-wire and transient plane source (TPS) methods, two popular techniques often used to measure NF's thermal conductivity. In this way, polydimethylsiloxane (PDMS), due to its unique properties, such as thermal stability and excellent optical transparency, was applied to fabricate an innovative and simple cell that offers a more straightforward and efficient way to clean the NPs deposited on the walls and as a result to avoid any possible sample contaminations.This work has been funded by FCT/MCTES (PIDDAC) through the base funding from the following research units: UIDP/50009/2020- FCT and UIDB/50009/2020- FCT, UIDB/00532/2020, UIDB/04077/2020 and UIDP/04077/2020. The authors are also grateful for FCT funding through 2022.03151.PTDC, PTDC/EME-TED/7801/2020, POCI-01- 0145-FEDER-016861, POCI-01-0145-FEDER-028159, funded by COMPETE2020, NORTE2020, PORTUGAL2020, and FEDER. Glauco Nobrega was supported by the doctoral Grant PRT/BD/153088/2021, financed by the Portuguese Foundation for Science and Technology (FCT), under MIT Portugal Program. The authors are also very grateful to Eng. Carlos Alberto Costa (UMinho) for the technical assistance provided to this research work, Dr. M. Bañobre-López´ and Dr. V. Faustino (INL) for providing us the Fe3O4@PAA nanoparticles. E. M. Cardoso also acknowledges the financial support from the National Council of Technological and Scientific Development of Brazil (CNPq grant number 458702/2014-5 and 309848/2020-2) and FAPESP (grant number 2013/15431-7, 2019/02566-8, and 2022/03946-1).ElsevierUniversidade do MinhoSouza, R. R.Barbosa, Filipe Manuel SáNobrega, G.Cardoso, E. M.Teixeira, J. CarlosMoita, A. S.Lima, Rui Augusto Ribeiro20232023-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/1822/87993eng2451-904910.1016/j.tsep.2023.101926101926https://www.sciencedirect.com/science/article/pii/S2451904923002792?via%3Dihubinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-01-13T01:27:11Zoai:repositorium.sdum.uminho.pt:1822/87993Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:36:08.617730Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
An innovative PDMS cell to improve the thermal conductivity measurements of nanofluids |
title |
An innovative PDMS cell to improve the thermal conductivity measurements of nanofluids |
spellingShingle |
An innovative PDMS cell to improve the thermal conductivity measurements of nanofluids Souza, R. R. PDMS cell Thermal conductivity measurement Nanofluids Nanoparticles |
title_short |
An innovative PDMS cell to improve the thermal conductivity measurements of nanofluids |
title_full |
An innovative PDMS cell to improve the thermal conductivity measurements of nanofluids |
title_fullStr |
An innovative PDMS cell to improve the thermal conductivity measurements of nanofluids |
title_full_unstemmed |
An innovative PDMS cell to improve the thermal conductivity measurements of nanofluids |
title_sort |
An innovative PDMS cell to improve the thermal conductivity measurements of nanofluids |
author |
Souza, R. R. |
author_facet |
Souza, R. R. Barbosa, Filipe Manuel Sá Nobrega, G. Cardoso, E. M. Teixeira, J. Carlos Moita, A. S. Lima, Rui Augusto Ribeiro |
author_role |
author |
author2 |
Barbosa, Filipe Manuel Sá Nobrega, G. Cardoso, E. M. Teixeira, J. Carlos Moita, A. S. Lima, Rui Augusto Ribeiro |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Souza, R. R. Barbosa, Filipe Manuel Sá Nobrega, G. Cardoso, E. M. Teixeira, J. Carlos Moita, A. S. Lima, Rui Augusto Ribeiro |
dc.subject.por.fl_str_mv |
PDMS cell Thermal conductivity measurement Nanofluids Nanoparticles |
topic |
PDMS cell Thermal conductivity measurement Nanofluids Nanoparticles |
description |
The traditional methods to measure the thermal conductivity of nanofluids (NFs) do not allow the investigation of critical features that affect the NF's heat transfer performance. For instance, during the thermal conductivity measurements, the NF's thermal properties may be subject to several critical features such as sedimentation, aggregation and wall adhesion of NPs. In addition, the measurement cell has severe functional limitations in terms of full cleaning and performing direct visualizations due mainly to design, geometrical and material constraints. These are frequent problems encountered at the transient hot-wire and transient plane source (TPS) methods, two popular techniques often used to measure NF's thermal conductivity. In this way, polydimethylsiloxane (PDMS), due to its unique properties, such as thermal stability and excellent optical transparency, was applied to fabricate an innovative and simple cell that offers a more straightforward and efficient way to clean the NPs deposited on the walls and as a result to avoid any possible sample contaminations. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023 2023-01-01T00:00:00Z |
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 |
https://hdl.handle.net/1822/87993 |
url |
https://hdl.handle.net/1822/87993 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
2451-9049 10.1016/j.tsep.2023.101926 101926 https://www.sciencedirect.com/science/article/pii/S2451904923002792?via%3Dihub |
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.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799136836376854528 |