Impact of Fusion Temperature on Hydrothermal Features of Flow within an Annulus Loaded with Nanoencapsulated Phase Change Materials (NEPCMs) during Natural Convection Process

A new type of nanofluids is nanoencapsulated phase change materials (NEPCMs), where nanoparticles are made of a shell and a core. In the current study, characteristics of free convection flow, entropy generation, and heat transfer of NEPCMs in an enclosure are investigated. The enclosure is an annul...

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Autores principales:	Seyyed Masoud Seyyedi, M. Hashemi-Tilehnoee, M. Sharifpur
Formato:	article
Lenguaje:	EN
Publicado:	Hindawi Limited 2021
Materias:	Engineering (General). Civil engineering (General) TA1-2040 Mathematics QA1-939
Acceso en línea:	https://doaj.org/article/0cb21b29a1164c2c85ff5f4d0723495f
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spelling	oai:doaj.org-article:0cb21b29a1164c2c85ff5f4d0723495f2021-11-22T01:10:48ZImpact of Fusion Temperature on Hydrothermal Features of Flow within an Annulus Loaded with Nanoencapsulated Phase Change Materials (NEPCMs) during Natural Convection Process1563-514710.1155/2021/4276894https://doaj.org/article/0cb21b29a1164c2c85ff5f4d0723495f2021-01-01T00:00:00Zhttp://dx.doi.org/10.1155/2021/4276894https://doaj.org/toc/1563-5147A new type of nanofluids is nanoencapsulated phase change materials (NEPCMs), where nanoparticles are made of a shell and a core. In the current study, characteristics of free convection flow, entropy generation, and heat transfer of NEPCMs in an enclosure are investigated. The enclosure is an annulus between concentric horizontal circular and square cylinders with a porous medium. The governing equations (i.e., continuity, energy, and momentum) are written in the nondimensional form and then numerically solved by the control volume finite element method (CVFEM). The results of the validation are in good agreement with those of the literature. The effects of decision variables on the entropy generation number and the average Nusselt number are investigated. The outcomes discovered that there is a maximum for Nuave and a minimum for Ngen at θf=0.4 for each value of the Stefan number. Also, Nuave and ECOP increase by 8.8% and 24.8%, respectively, while Ngen decreases by 12.8% when ϕ increases from 0 (pure fluid) to 0.05 at θf=0.4.Seyyed Masoud SeyyediM. Hashemi-TilehnoeeM. SharifpurHindawi LimitedarticleEngineering (General). Civil engineering (General)TA1-2040MathematicsQA1-939ENMathematical Problems in Engineering, Vol 2021 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Engineering (General). Civil engineering (General) TA1-2040 Mathematics QA1-939
spellingShingle	Engineering (General). Civil engineering (General) TA1-2040 Mathematics QA1-939 Seyyed Masoud Seyyedi M. Hashemi-Tilehnoee M. Sharifpur Impact of Fusion Temperature on Hydrothermal Features of Flow within an Annulus Loaded with Nanoencapsulated Phase Change Materials (NEPCMs) during Natural Convection Process
description	A new type of nanofluids is nanoencapsulated phase change materials (NEPCMs), where nanoparticles are made of a shell and a core. In the current study, characteristics of free convection flow, entropy generation, and heat transfer of NEPCMs in an enclosure are investigated. The enclosure is an annulus between concentric horizontal circular and square cylinders with a porous medium. The governing equations (i.e., continuity, energy, and momentum) are written in the nondimensional form and then numerically solved by the control volume finite element method (CVFEM). The results of the validation are in good agreement with those of the literature. The effects of decision variables on the entropy generation number and the average Nusselt number are investigated. The outcomes discovered that there is a maximum for Nuave and a minimum for Ngen at θf=0.4 for each value of the Stefan number. Also, Nuave and ECOP increase by 8.8% and 24.8%, respectively, while Ngen decreases by 12.8% when ϕ increases from 0 (pure fluid) to 0.05 at θf=0.4.
format	article
author	Seyyed Masoud Seyyedi M. Hashemi-Tilehnoee M. Sharifpur
author_facet	Seyyed Masoud Seyyedi M. Hashemi-Tilehnoee M. Sharifpur
author_sort	Seyyed Masoud Seyyedi
title	Impact of Fusion Temperature on Hydrothermal Features of Flow within an Annulus Loaded with Nanoencapsulated Phase Change Materials (NEPCMs) during Natural Convection Process
title_short	Impact of Fusion Temperature on Hydrothermal Features of Flow within an Annulus Loaded with Nanoencapsulated Phase Change Materials (NEPCMs) during Natural Convection Process
title_full	Impact of Fusion Temperature on Hydrothermal Features of Flow within an Annulus Loaded with Nanoencapsulated Phase Change Materials (NEPCMs) during Natural Convection Process
title_fullStr	Impact of Fusion Temperature on Hydrothermal Features of Flow within an Annulus Loaded with Nanoencapsulated Phase Change Materials (NEPCMs) during Natural Convection Process
title_full_unstemmed	Impact of Fusion Temperature on Hydrothermal Features of Flow within an Annulus Loaded with Nanoencapsulated Phase Change Materials (NEPCMs) during Natural Convection Process
title_sort	impact of fusion temperature on hydrothermal features of flow within an annulus loaded with nanoencapsulated phase change materials (nepcms) during natural convection process
publisher	Hindawi Limited
publishDate	2021
url	https://doaj.org/article/0cb21b29a1164c2c85ff5f4d0723495f
work_keys_str_mv	AT seyyedmasoudseyyedi impactoffusiontemperatureonhydrothermalfeaturesofflowwithinanannulusloadedwithnanoencapsulatedphasechangematerialsnepcmsduringnaturalconvectionprocess AT mhashemitilehnoee impactoffusiontemperatureonhydrothermalfeaturesofflowwithinanannulusloadedwithnanoencapsulatedphasechangematerialsnepcmsduringnaturalconvectionprocess AT msharifpur impactoffusiontemperatureonhydrothermalfeaturesofflowwithinanannulusloadedwithnanoencapsulatedphasechangematerialsnepcmsduringnaturalconvectionprocess
_version_	1718418322515558400

Impact of Fusion Temperature on Hydrothermal Features of Flow within an Annulus Loaded with Nanoencapsulated Phase Change Materials (NEPCMs) during Natural Convection Process

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