Numerical assessment of heat transfer and mixing quality of a hybrid nanofluid in a microchannel equipped with a dual mixer

The present study investigates the electroosmotic flow and heat transfer of a hybrid nanofluid within a microchannel equipped with a dual mixer by presenting a new design. Four pairs of electrodes are mounted on the mixers, which can increase the mass diffusion by absorbing ions into the electrodes...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autor principal:	Pouya Barnoon
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Mixing quality Active electrodes Electroosmotic flow Heat transfer Microchannel Dual mixer Heat QC251-338.5
Acceso en línea:	https://doaj.org/article/ea9e0034f2b84324b697d6a3cd48c71e
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:ea9e0034f2b84324b697d6a3cd48c71e
record_format	dspace
spelling	oai:doaj.org-article:ea9e0034f2b84324b697d6a3cd48c71e2021-11-28T04:38:24ZNumerical assessment of heat transfer and mixing quality of a hybrid nanofluid in a microchannel equipped with a dual mixer2666-202710.1016/j.ijft.2021.100111https://doaj.org/article/ea9e0034f2b84324b697d6a3cd48c71e2021-11-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2666202721000495https://doaj.org/toc/2666-2027The present study investigates the electroosmotic flow and heat transfer of a hybrid nanofluid within a microchannel equipped with a dual mixer by presenting a new design. Four pairs of electrodes are mounted on the mixers, which can increase the mass diffusion by absorbing ions into the electrodes and generate vortices. The hybrid nanofluid contains silver (Ag) and iron oxide (Fe3O4) nanoparticles based on pure water that is injected into the microchannel in different volume fractions. The numerical results show that when heat fluxes are applied to the cores, the use of all-insulated microchannels significantly increases the microchannel temperature and cannot produce the desired results. Therefore, an idea to control the microchannel temperature and increase heat transfer is proposed. Increasing the frequency and electric potential can enhance the mixing quality. A specific frequency is proposed for each Reynolds number at different times. The results show that the best mixing quality is 87.5%, which can be achieved at a minimum flow rate and 0.5 seconds. Using the hybrid nanofluid in a volume fraction of 1.4%, the heat transfer can be increased to 7.29% compared to the pure fluid. The results show that from 0.015 seconds onwards, the heat transfer inside the microchannel reaches an almost stable state. Reducing the Reynolds number and increasing the frequency play an essential role in improving the mixing quality.Pouya BarnoonElsevierarticleMixing qualityActive electrodesElectroosmotic flowHeat transferMicrochannelDual mixerHeatQC251-338.5ENInternational Journal of Thermofluids, Vol 12, Iss , Pp 100111- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Mixing quality Active electrodes Electroosmotic flow Heat transfer Microchannel Dual mixer Heat QC251-338.5
spellingShingle	Mixing quality Active electrodes Electroosmotic flow Heat transfer Microchannel Dual mixer Heat QC251-338.5 Pouya Barnoon Numerical assessment of heat transfer and mixing quality of a hybrid nanofluid in a microchannel equipped with a dual mixer
description	The present study investigates the electroosmotic flow and heat transfer of a hybrid nanofluid within a microchannel equipped with a dual mixer by presenting a new design. Four pairs of electrodes are mounted on the mixers, which can increase the mass diffusion by absorbing ions into the electrodes and generate vortices. The hybrid nanofluid contains silver (Ag) and iron oxide (Fe3O4) nanoparticles based on pure water that is injected into the microchannel in different volume fractions. The numerical results show that when heat fluxes are applied to the cores, the use of all-insulated microchannels significantly increases the microchannel temperature and cannot produce the desired results. Therefore, an idea to control the microchannel temperature and increase heat transfer is proposed. Increasing the frequency and electric potential can enhance the mixing quality. A specific frequency is proposed for each Reynolds number at different times. The results show that the best mixing quality is 87.5%, which can be achieved at a minimum flow rate and 0.5 seconds. Using the hybrid nanofluid in a volume fraction of 1.4%, the heat transfer can be increased to 7.29% compared to the pure fluid. The results show that from 0.015 seconds onwards, the heat transfer inside the microchannel reaches an almost stable state. Reducing the Reynolds number and increasing the frequency play an essential role in improving the mixing quality.
format	article
author	Pouya Barnoon
author_facet	Pouya Barnoon
author_sort	Pouya Barnoon
title	Numerical assessment of heat transfer and mixing quality of a hybrid nanofluid in a microchannel equipped with a dual mixer
title_short	Numerical assessment of heat transfer and mixing quality of a hybrid nanofluid in a microchannel equipped with a dual mixer
title_full	Numerical assessment of heat transfer and mixing quality of a hybrid nanofluid in a microchannel equipped with a dual mixer
title_fullStr	Numerical assessment of heat transfer and mixing quality of a hybrid nanofluid in a microchannel equipped with a dual mixer
title_full_unstemmed	Numerical assessment of heat transfer and mixing quality of a hybrid nanofluid in a microchannel equipped with a dual mixer
title_sort	numerical assessment of heat transfer and mixing quality of a hybrid nanofluid in a microchannel equipped with a dual mixer
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/ea9e0034f2b84324b697d6a3cd48c71e
work_keys_str_mv	AT pouyabarnoon numericalassessmentofheattransferandmixingqualityofahybridnanofluidinamicrochannelequippedwithadualmixer
_version_	1718408293112610816

Numerical assessment of heat transfer and mixing quality of a hybrid nanofluid in a microchannel equipped with a dual mixer

Ejemplares similares