Experimental investigation of transient heat transfer coefficient in natural convection with Al2O3-nanofluids
In this manuscript, the heat transfer coefficient of de-ionized water based nanofluid’s containing Al 2 O 3 nanoparticles under natural convection is experimentally investigated. The thermophysical properties of the prepared nanofluid samples which have great roles in the heat transfer process such...
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| Veröffentlicht in: | Heat and mass transfer 2020-03, Vol.56 (3), p.901-911 |
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| creator | Gavili, Anwar Isfahani, Taghi |
| description | In this manuscript, the heat transfer coefficient of de-ionized water based nanofluid’s containing
Al
2
O
3
nanoparticles under natural convection is experimentally investigated. The thermophysical properties of the prepared nanofluid samples which have great roles in the heat transfer process such as the thermal conductivity and viscosity are experimentally measured and their effects are discussed. Furthermore, the transient temperature of the hot and cold walls and the other sides of the container enclosure are measured and the variation of heat transfer coefficient with the volume fraction of the nanoparticles is shown. According to our results, the heat transfer coefficient of nanofluids enhanced at low volume fractions while with further increase in the volume fraction of nanoparticles it decreased as a result of the increase in viscosity. The results show that in comparison with de-ionized water the heat transfer coefficient of nanofluids containing 0.1% volume fraction nanoparticles had a 16.0% enhancement but for a 3.0% volume fraction it had a 24.0% decrease. |
| doi_str_mv | 10.1007/s00231-019-02752-5 |
| format | Article |
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Al
2
O
3
nanoparticles under natural convection is experimentally investigated. The thermophysical properties of the prepared nanofluid samples which have great roles in the heat transfer process such as the thermal conductivity and viscosity are experimentally measured and their effects are discussed. Furthermore, the transient temperature of the hot and cold walls and the other sides of the container enclosure are measured and the variation of heat transfer coefficient with the volume fraction of the nanoparticles is shown. According to our results, the heat transfer coefficient of nanofluids enhanced at low volume fractions while with further increase in the volume fraction of nanoparticles it decreased as a result of the increase in viscosity. The results show that in comparison with de-ionized water the heat transfer coefficient of nanofluids containing 0.1% volume fraction nanoparticles had a 16.0% enhancement but for a 3.0% volume fraction it had a 24.0% decrease.</description><identifier>ISSN: 0947-7411</identifier><identifier>EISSN: 1432-1181</identifier><identifier>DOI: 10.1007/s00231-019-02752-5</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer Berlin Heidelberg</publisher><subject>Aluminum oxide ; Coefficient of variation ; Engineering ; Engineering Thermodynamics ; Free convection ; Heat and Mass Transfer ; Heat transfer ; Heat transfer coefficients ; Industrial Chemistry/Chemical Engineering ; Nanofluids ; Nanoparticles ; Original ; Thermal conductivity ; Thermodynamics ; Thermophysical properties ; Transient heat transfer ; Viscosity</subject><ispartof>Heat and mass transfer, 2020-03, Vol.56 (3), p.901-911</ispartof><rights>Springer-Verlag GmbH Germany, part of Springer Nature 2019</rights><rights>2019© Springer-Verlag GmbH Germany, part of Springer Nature 2019</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c356t-cf2cb83a32895e7fafee71de2331982746e8a7a0d9ab437ab4c8a64250bd27743</citedby><cites>FETCH-LOGICAL-c356t-cf2cb83a32895e7fafee71de2331982746e8a7a0d9ab437ab4c8a64250bd27743</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s00231-019-02752-5$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s00231-019-02752-5$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids></links><search><creatorcontrib>Gavili, Anwar</creatorcontrib><creatorcontrib>Isfahani, Taghi</creatorcontrib><title>Experimental investigation of transient heat transfer coefficient in natural convection with Al2O3-nanofluids</title><title>Heat and mass transfer</title><addtitle>Heat Mass Transfer</addtitle><description>In this manuscript, the heat transfer coefficient of de-ionized water based nanofluid’s containing
Al
2
O
3
nanoparticles under natural convection is experimentally investigated. The thermophysical properties of the prepared nanofluid samples which have great roles in the heat transfer process such as the thermal conductivity and viscosity are experimentally measured and their effects are discussed. Furthermore, the transient temperature of the hot and cold walls and the other sides of the container enclosure are measured and the variation of heat transfer coefficient with the volume fraction of the nanoparticles is shown. According to our results, the heat transfer coefficient of nanofluids enhanced at low volume fractions while with further increase in the volume fraction of nanoparticles it decreased as a result of the increase in viscosity. The results show that in comparison with de-ionized water the heat transfer coefficient of nanofluids containing 0.1% volume fraction nanoparticles had a 16.0% enhancement but for a 3.0% volume fraction it had a 24.0% decrease.</description><subject>Aluminum oxide</subject><subject>Coefficient of variation</subject><subject>Engineering</subject><subject>Engineering Thermodynamics</subject><subject>Free convection</subject><subject>Heat and Mass Transfer</subject><subject>Heat transfer</subject><subject>Heat transfer coefficients</subject><subject>Industrial Chemistry/Chemical Engineering</subject><subject>Nanofluids</subject><subject>Nanoparticles</subject><subject>Original</subject><subject>Thermal conductivity</subject><subject>Thermodynamics</subject><subject>Thermophysical properties</subject><subject>Transient heat transfer</subject><subject>Viscosity</subject><issn>0947-7411</issn><issn>1432-1181</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNp9kEtPAyEYRYnRxFr9A64mcY3yHGaWTVOtSZNudE0oAy3NFCowPv692DFx5wZCvnsu-Q4AtxjdY4TEQ0KIUAwRbiEighPIz8AEM0ogxg0-BxPUMgEFw_gSXKW0L_GaEToBh8Xn0UR3MD6rvnL-3aTstiq74KtgqxyVT64Mq51ReXxaEysdjLVOnybOV17lIRZeh1KgT_CHy7tq1pM1hV75YPvBdekaXFjVJ3Pze0_B6-PiZb6Eq_XT83y2gpryOkNtid40VFHStNwIq6wxAneGUIrbhghWm0YJhbpWbRgV5dCNKvtwtOmIEIxOwd3Ye4zhbSgryX0Yoi9fSkJrTpngtSgpMqZ0DClFY-WxmFDxS2Ikf7TKUassWuVJq-QFoiOUSthvTfyr_of6BkAjfK0</recordid><startdate>20200301</startdate><enddate>20200301</enddate><creator>Gavili, Anwar</creator><creator>Isfahani, Taghi</creator><general>Springer Berlin Heidelberg</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20200301</creationdate><title>Experimental investigation of transient heat transfer coefficient in natural convection with Al2O3-nanofluids</title><author>Gavili, Anwar ; Isfahani, Taghi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c356t-cf2cb83a32895e7fafee71de2331982746e8a7a0d9ab437ab4c8a64250bd27743</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Aluminum oxide</topic><topic>Coefficient of variation</topic><topic>Engineering</topic><topic>Engineering Thermodynamics</topic><topic>Free convection</topic><topic>Heat and Mass Transfer</topic><topic>Heat transfer</topic><topic>Heat transfer coefficients</topic><topic>Industrial Chemistry/Chemical Engineering</topic><topic>Nanofluids</topic><topic>Nanoparticles</topic><topic>Original</topic><topic>Thermal conductivity</topic><topic>Thermodynamics</topic><topic>Thermophysical properties</topic><topic>Transient heat transfer</topic><topic>Viscosity</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Gavili, Anwar</creatorcontrib><creatorcontrib>Isfahani, Taghi</creatorcontrib><collection>CrossRef</collection><jtitle>Heat and mass transfer</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Gavili, Anwar</au><au>Isfahani, Taghi</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Experimental investigation of transient heat transfer coefficient in natural convection with Al2O3-nanofluids</atitle><jtitle>Heat and mass transfer</jtitle><stitle>Heat Mass Transfer</stitle><date>2020-03-01</date><risdate>2020</risdate><volume>56</volume><issue>3</issue><spage>901</spage><epage>911</epage><pages>901-911</pages><issn>0947-7411</issn><eissn>1432-1181</eissn><abstract>In this manuscript, the heat transfer coefficient of de-ionized water based nanofluid’s containing
Al
2
O
3
nanoparticles under natural convection is experimentally investigated. The thermophysical properties of the prepared nanofluid samples which have great roles in the heat transfer process such as the thermal conductivity and viscosity are experimentally measured and their effects are discussed. Furthermore, the transient temperature of the hot and cold walls and the other sides of the container enclosure are measured and the variation of heat transfer coefficient with the volume fraction of the nanoparticles is shown. According to our results, the heat transfer coefficient of nanofluids enhanced at low volume fractions while with further increase in the volume fraction of nanoparticles it decreased as a result of the increase in viscosity. The results show that in comparison with de-ionized water the heat transfer coefficient of nanofluids containing 0.1% volume fraction nanoparticles had a 16.0% enhancement but for a 3.0% volume fraction it had a 24.0% decrease.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer Berlin Heidelberg</pub><doi>10.1007/s00231-019-02752-5</doi><tpages>11</tpages></addata></record> |
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| subjects | Aluminum oxide Coefficient of variation Engineering Engineering Thermodynamics Free convection Heat and Mass Transfer Heat transfer Heat transfer coefficients Industrial Chemistry/Chemical Engineering Nanofluids Nanoparticles Original Thermal conductivity Thermodynamics Thermophysical properties Transient heat transfer Viscosity |
| title | Experimental investigation of transient heat transfer coefficient in natural convection with Al2O3-nanofluids |
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