Loading…

Numerical hydrothermal analysis of water-Al2O3 nanofluid forced convection in a narrow annulus filled by porous medium considering variable properties: Application to cylindrical heat pipes

A study on the flow and heat transfer characteristics of nanofluid forced convection in an annular porous medium, as the main part of a cylindrical heat pipe, is numerically carried out to investigate the effect of nanoparticles on hydrothermal performance of a cylindrical heat pipe. The Al 2 O 3 -w...

Full description

Saved in:
Bibliographic Details
Published in:Journal of thermal analysis and calorimetry 2016-11, Vol.126 (2), p.891-904
Main Authors: Mashaei, P. R., Shahryari, M., Madani, S.
Format: Article
Language:English
Subjects:
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
cited_by
cites cdi_FETCH-LOGICAL-c1923-7fd20ce2d009d369c7a004e1205c07f030feddd3836700525ab887bdd43fbeed3
container_end_page 904
container_issue 2
container_start_page 891
container_title Journal of thermal analysis and calorimetry
container_volume 126
creator Mashaei, P. R.
Shahryari, M.
Madani, S.
description A study on the flow and heat transfer characteristics of nanofluid forced convection in an annular porous medium, as the main part of a cylindrical heat pipe, is numerically carried out to investigate the effect of nanoparticles on hydrothermal performance of a cylindrical heat pipe. The Al 2 O 3 -water mixture is considered as working fluid and a single-phase approach with variable properties adopted to formulate it. The influence of heat load and particle concentration level on thermophysical properties, velocity, pressure, and temperature fields, thermal performance of heat pipe is evaluated. It is found that the use of nanoparticles presents a better wall temperature uniformity. The values of velocity in wick structure decreases as more nanoparticles are added in base fluid. The profiles of pressure drop for low and middle particle concentration levels are nearly similar to each other, while the pressure drop increases significantly as concentration is raised up to 6 %. Both evaporation heat transfer coefficient and overall heat transfer coefficient improve as base fluid is replaced by nanofluid and the influence of the use of nanofluid on heat transfer enhancement becomes more remarkable for higher heat load. Results also revealed that the hydrothermal characteristics of heat pipe are more affected by nanoparticles as porosity and thermal conductivity ratio of porous medium increases and decreases, respectively. In addition, the thermal–hydraulic performance of heat pipe is investigated and the best value is found for the middle particle concentration and highest imposed heat load.
doi_str_mv 10.1007/s10973-016-5550-3
format article
fullrecord <record><control><sourceid>crossref_sprin</sourceid><recordid>TN_cdi_crossref_primary_10_1007_s10973_016_5550_3</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>10_1007_s10973_016_5550_3</sourcerecordid><originalsourceid>FETCH-LOGICAL-c1923-7fd20ce2d009d369c7a004e1205c07f030feddd3836700525ab887bdd43fbeed3</originalsourceid><addsrcrecordid>eNp9kEtOwzAQhiMEEqVwAHa-QGBsN69lVfGSEN3AOnLsMXXlxNG4adWLcF5clTWrmbH-z2N_WXbP4YEDVI-RQ1PJHHiZF0UBubzIZryo61w0orxMvUx9yQu4zm5i3AJA0wCfZT8fU4_ktPJsczQUdhukPg1qUP4YXWTBsoPaIeVLL9aSDWoI1k_OMBtIo2E6DHvUOxcG5gamUoAoHBI_TH6KzDrvU6o7sjFQSAc9Gjf1Jyw6kzYP32yvyKnOIxspjEg7h_E2u7LKR7z7q_Ps6_npc_Wav69f3lbL91zzRsi8skaARmHSd4wsG10pgAVyAYWGyoIEi8YYWcuyAihEobq6rjpjFtJ2iEbOM36-V1OIkdC2I7le0bHl0J7EtmexbRLbnsS2MjHizMTx9HykdhsmSr7iP9AvOHF_vQ</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>Numerical hydrothermal analysis of water-Al2O3 nanofluid forced convection in a narrow annulus filled by porous medium considering variable properties: Application to cylindrical heat pipes</title><source>Springer Nature</source><creator>Mashaei, P. R. ; Shahryari, M. ; Madani, S.</creator><creatorcontrib>Mashaei, P. R. ; Shahryari, M. ; Madani, S.</creatorcontrib><description>A study on the flow and heat transfer characteristics of nanofluid forced convection in an annular porous medium, as the main part of a cylindrical heat pipe, is numerically carried out to investigate the effect of nanoparticles on hydrothermal performance of a cylindrical heat pipe. The Al 2 O 3 -water mixture is considered as working fluid and a single-phase approach with variable properties adopted to formulate it. The influence of heat load and particle concentration level on thermophysical properties, velocity, pressure, and temperature fields, thermal performance of heat pipe is evaluated. It is found that the use of nanoparticles presents a better wall temperature uniformity. The values of velocity in wick structure decreases as more nanoparticles are added in base fluid. The profiles of pressure drop for low and middle particle concentration levels are nearly similar to each other, while the pressure drop increases significantly as concentration is raised up to 6 %. Both evaporation heat transfer coefficient and overall heat transfer coefficient improve as base fluid is replaced by nanofluid and the influence of the use of nanofluid on heat transfer enhancement becomes more remarkable for higher heat load. Results also revealed that the hydrothermal characteristics of heat pipe are more affected by nanoparticles as porosity and thermal conductivity ratio of porous medium increases and decreases, respectively. In addition, the thermal–hydraulic performance of heat pipe is investigated and the best value is found for the middle particle concentration and highest imposed heat load.</description><identifier>ISSN: 1388-6150</identifier><identifier>EISSN: 1588-2926</identifier><identifier>DOI: 10.1007/s10973-016-5550-3</identifier><language>eng</language><publisher>Dordrecht: Springer Netherlands</publisher><subject>Analytical Chemistry ; Chemistry ; Chemistry and Materials Science ; Inorganic Chemistry ; Measurement Science and Instrumentation ; Physical Chemistry ; Polymer Sciences</subject><ispartof>Journal of thermal analysis and calorimetry, 2016-11, Vol.126 (2), p.891-904</ispartof><rights>Akadémiai Kiadó, Budapest, Hungary 2016</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c1923-7fd20ce2d009d369c7a004e1205c07f030feddd3836700525ab887bdd43fbeed3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Mashaei, P. R.</creatorcontrib><creatorcontrib>Shahryari, M.</creatorcontrib><creatorcontrib>Madani, S.</creatorcontrib><title>Numerical hydrothermal analysis of water-Al2O3 nanofluid forced convection in a narrow annulus filled by porous medium considering variable properties: Application to cylindrical heat pipes</title><title>Journal of thermal analysis and calorimetry</title><addtitle>J Therm Anal Calorim</addtitle><description>A study on the flow and heat transfer characteristics of nanofluid forced convection in an annular porous medium, as the main part of a cylindrical heat pipe, is numerically carried out to investigate the effect of nanoparticles on hydrothermal performance of a cylindrical heat pipe. The Al 2 O 3 -water mixture is considered as working fluid and a single-phase approach with variable properties adopted to formulate it. The influence of heat load and particle concentration level on thermophysical properties, velocity, pressure, and temperature fields, thermal performance of heat pipe is evaluated. It is found that the use of nanoparticles presents a better wall temperature uniformity. The values of velocity in wick structure decreases as more nanoparticles are added in base fluid. The profiles of pressure drop for low and middle particle concentration levels are nearly similar to each other, while the pressure drop increases significantly as concentration is raised up to 6 %. Both evaporation heat transfer coefficient and overall heat transfer coefficient improve as base fluid is replaced by nanofluid and the influence of the use of nanofluid on heat transfer enhancement becomes more remarkable for higher heat load. Results also revealed that the hydrothermal characteristics of heat pipe are more affected by nanoparticles as porosity and thermal conductivity ratio of porous medium increases and decreases, respectively. In addition, the thermal–hydraulic performance of heat pipe is investigated and the best value is found for the middle particle concentration and highest imposed heat load.</description><subject>Analytical Chemistry</subject><subject>Chemistry</subject><subject>Chemistry and Materials Science</subject><subject>Inorganic Chemistry</subject><subject>Measurement Science and Instrumentation</subject><subject>Physical Chemistry</subject><subject>Polymer Sciences</subject><issn>1388-6150</issn><issn>1588-2926</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><recordid>eNp9kEtOwzAQhiMEEqVwAHa-QGBsN69lVfGSEN3AOnLsMXXlxNG4adWLcF5clTWrmbH-z2N_WXbP4YEDVI-RQ1PJHHiZF0UBubzIZryo61w0orxMvUx9yQu4zm5i3AJA0wCfZT8fU4_ktPJsczQUdhukPg1qUP4YXWTBsoPaIeVLL9aSDWoI1k_OMBtIo2E6DHvUOxcG5gamUoAoHBI_TH6KzDrvU6o7sjFQSAc9Gjf1Jyw6kzYP32yvyKnOIxspjEg7h_E2u7LKR7z7q_Ps6_npc_Wav69f3lbL91zzRsi8skaARmHSd4wsG10pgAVyAYWGyoIEi8YYWcuyAihEobq6rjpjFtJ2iEbOM36-V1OIkdC2I7le0bHl0J7EtmexbRLbnsS2MjHizMTx9HykdhsmSr7iP9AvOHF_vQ</recordid><startdate>20161101</startdate><enddate>20161101</enddate><creator>Mashaei, P. R.</creator><creator>Shahryari, M.</creator><creator>Madani, S.</creator><general>Springer Netherlands</general><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20161101</creationdate><title>Numerical hydrothermal analysis of water-Al2O3 nanofluid forced convection in a narrow annulus filled by porous medium considering variable properties</title><author>Mashaei, P. R. ; Shahryari, M. ; Madani, S.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c1923-7fd20ce2d009d369c7a004e1205c07f030feddd3836700525ab887bdd43fbeed3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Analytical Chemistry</topic><topic>Chemistry</topic><topic>Chemistry and Materials Science</topic><topic>Inorganic Chemistry</topic><topic>Measurement Science and Instrumentation</topic><topic>Physical Chemistry</topic><topic>Polymer Sciences</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Mashaei, P. R.</creatorcontrib><creatorcontrib>Shahryari, M.</creatorcontrib><creatorcontrib>Madani, S.</creatorcontrib><collection>CrossRef</collection><jtitle>Journal of thermal analysis and calorimetry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Mashaei, P. R.</au><au>Shahryari, M.</au><au>Madani, S.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Numerical hydrothermal analysis of water-Al2O3 nanofluid forced convection in a narrow annulus filled by porous medium considering variable properties: Application to cylindrical heat pipes</atitle><jtitle>Journal of thermal analysis and calorimetry</jtitle><stitle>J Therm Anal Calorim</stitle><date>2016-11-01</date><risdate>2016</risdate><volume>126</volume><issue>2</issue><spage>891</spage><epage>904</epage><pages>891-904</pages><issn>1388-6150</issn><eissn>1588-2926</eissn><abstract>A study on the flow and heat transfer characteristics of nanofluid forced convection in an annular porous medium, as the main part of a cylindrical heat pipe, is numerically carried out to investigate the effect of nanoparticles on hydrothermal performance of a cylindrical heat pipe. The Al 2 O 3 -water mixture is considered as working fluid and a single-phase approach with variable properties adopted to formulate it. The influence of heat load and particle concentration level on thermophysical properties, velocity, pressure, and temperature fields, thermal performance of heat pipe is evaluated. It is found that the use of nanoparticles presents a better wall temperature uniformity. The values of velocity in wick structure decreases as more nanoparticles are added in base fluid. The profiles of pressure drop for low and middle particle concentration levels are nearly similar to each other, while the pressure drop increases significantly as concentration is raised up to 6 %. Both evaporation heat transfer coefficient and overall heat transfer coefficient improve as base fluid is replaced by nanofluid and the influence of the use of nanofluid on heat transfer enhancement becomes more remarkable for higher heat load. Results also revealed that the hydrothermal characteristics of heat pipe are more affected by nanoparticles as porosity and thermal conductivity ratio of porous medium increases and decreases, respectively. In addition, the thermal–hydraulic performance of heat pipe is investigated and the best value is found for the middle particle concentration and highest imposed heat load.</abstract><cop>Dordrecht</cop><pub>Springer Netherlands</pub><doi>10.1007/s10973-016-5550-3</doi><tpages>14</tpages></addata></record>
fulltext fulltext
identifier ISSN: 1388-6150
ispartof Journal of thermal analysis and calorimetry, 2016-11, Vol.126 (2), p.891-904
issn 1388-6150
1588-2926
language eng
recordid cdi_crossref_primary_10_1007_s10973_016_5550_3
source Springer Nature
subjects Analytical Chemistry
Chemistry
Chemistry and Materials Science
Inorganic Chemistry
Measurement Science and Instrumentation
Physical Chemistry
Polymer Sciences
title Numerical hydrothermal analysis of water-Al2O3 nanofluid forced convection in a narrow annulus filled by porous medium considering variable properties: Application to cylindrical heat pipes
url http://sfxeu10.hosted.exlibrisgroup.com/loughborough?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-25T03%3A16%3A38IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-crossref_sprin&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Numerical%20hydrothermal%20analysis%20of%20water-Al2O3%20nanofluid%20forced%20convection%20in%20a%20narrow%20annulus%20filled%20by%20porous%20medium%20considering%20variable%20properties:%20Application%20to%20cylindrical%20heat%20pipes&rft.jtitle=Journal%20of%20thermal%20analysis%20and%20calorimetry&rft.au=Mashaei,%20P.%20R.&rft.date=2016-11-01&rft.volume=126&rft.issue=2&rft.spage=891&rft.epage=904&rft.pages=891-904&rft.issn=1388-6150&rft.eissn=1588-2926&rft_id=info:doi/10.1007/s10973-016-5550-3&rft_dat=%3Ccrossref_sprin%3E10_1007_s10973_016_5550_3%3C/crossref_sprin%3E%3Cgrp_id%3Ecdi_FETCH-LOGICAL-c1923-7fd20ce2d009d369c7a004e1205c07f030feddd3836700525ab887bdd43fbeed3%3C/grp_id%3E%3Coa%3E%3C/oa%3E%3Curl%3E%3C/url%3E&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true