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Viscosity and isobaric specific heat capacity of alumina nanoparticle enhanced ionic liquids: An experimental approach
Temperature and loading dependences on the rheological behavior and isobaric specific heat capacity of several suspensions of alumina nanoparticles in a binary mixture of [C2mim][CH3SO3] ionic liquid and water were experimentally determined to assess its potential condition of enhanced heat transfer...
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Published in: | Journal of molecular liquids 2020-11, Vol.317, p.114020, Article 114020 |
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container_title | Journal of molecular liquids |
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creator | Cherecheş, Elena Ionela Prado, Jose I. Ibanescu, Constanta Danu, Maricel Minea, Alina Adriana Lugo, Luis |
description | Temperature and loading dependences on the rheological behavior and isobaric specific heat capacity of several suspensions of alumina nanoparticles in a binary mixture of [C2mim][CH3SO3] ionic liquid and water were experimentally determined to assess its potential condition of enhanced heat transfer fluids. Rheological tests show a clear Newtonian behavior for the base fluid and the NEILs with lower Al2O3 concentrations while higher amounts of alumina nanoparticles entail non-Newtonian fluids and increase in viscosity up to 78%. The heating-cooling viscosity tests reveal that no significant viscosity hysteresis occur and VFT equation adequately describe the temperature dependence. Isobaric specific heat capacities decrease ( |
doi_str_mv | 10.1016/j.molliq.2020.114020 |
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•New NEILs based on [C2mim][CH3SO3] ionic liquid + water and Al2O3 are proposed.•NEILs viscosity increases as 39–78% by dispersing nanoparticles.•Heating-cooling cycles dependence on the prepared samples viscosity.•VFT model describes viscosity values for the NEILs with deviations less than 1.3%.•Cp(T) curves entails an increase up to 10% for the selected IL + W as base fluid.</description><identifier>ISSN: 0167-7322</identifier><identifier>EISSN: 1873-3166</identifier><identifier>DOI: 10.1016/j.molliq.2020.114020</identifier><language>eng</language><publisher>Elsevier B.V</publisher><subject>Al2O3 nanoparticles ; Ionic liquids ; Nanoparticle enhanced ionic liquids (NEILs) ; Specific heat capacity ; Viscosity</subject><ispartof>Journal of molecular liquids, 2020-11, Vol.317, p.114020, Article 114020</ispartof><rights>2020 Elsevier B.V.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c372t-68a9231284634cd0357c18d225c9096c658cdf9ab974a61d146eeb901d006fdb3</citedby><cites>FETCH-LOGICAL-c372t-68a9231284634cd0357c18d225c9096c658cdf9ab974a61d146eeb901d006fdb3</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>Cherecheş, Elena Ionela</creatorcontrib><creatorcontrib>Prado, Jose I.</creatorcontrib><creatorcontrib>Ibanescu, Constanta</creatorcontrib><creatorcontrib>Danu, Maricel</creatorcontrib><creatorcontrib>Minea, Alina Adriana</creatorcontrib><creatorcontrib>Lugo, Luis</creatorcontrib><title>Viscosity and isobaric specific heat capacity of alumina nanoparticle enhanced ionic liquids: An experimental approach</title><title>Journal of molecular liquids</title><description>Temperature and loading dependences on the rheological behavior and isobaric specific heat capacity of several suspensions of alumina nanoparticles in a binary mixture of [C2mim][CH3SO3] ionic liquid and water were experimentally determined to assess its potential condition of enhanced heat transfer fluids. Rheological tests show a clear Newtonian behavior for the base fluid and the NEILs with lower Al2O3 concentrations while higher amounts of alumina nanoparticles entail non-Newtonian fluids and increase in viscosity up to 78%. The heating-cooling viscosity tests reveal that no significant viscosity hysteresis occur and VFT equation adequately describe the temperature dependence. Isobaric specific heat capacities decrease (<10%) with nanoparticle mass fraction and increase (<10%) with temperature. The goodness of the Raud et al. correlation for predicting the isobaric specific heat capacity of nanoparticles enhanced fluids is discussed.
•New NEILs based on [C2mim][CH3SO3] ionic liquid + water and Al2O3 are proposed.•NEILs viscosity increases as 39–78% by dispersing nanoparticles.•Heating-cooling cycles dependence on the prepared samples viscosity.•VFT model describes viscosity values for the NEILs with deviations less than 1.3%.•Cp(T) curves entails an increase up to 10% for the selected IL + W as base fluid.</description><subject>Al2O3 nanoparticles</subject><subject>Ionic liquids</subject><subject>Nanoparticle enhanced ionic liquids (NEILs)</subject><subject>Specific heat capacity</subject><subject>Viscosity</subject><issn>0167-7322</issn><issn>1873-3166</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNp9kM1OwzAQhC0EEqXwBhz8Aim2kzgJB6Sq4k-qxAW4Wpu1o7pK7WCnFbw9jsKZ065WM6PZj5BbzlaccXm3Xx1839uvlWAinXiRxhlZ8LrKs5xLeU4WSVZlVS7EJbmKcc8YK8uaLcjp00b00Y4_FJymNvoWgkUaB4O2S8vOwEgRBsBJ4zsK_fFgHVAHzg8QRou9ocbtwKFJAd4lU-pytDre07Wj5nswwR6MG6GnMAzBA-6uyUUHfTQ3f3NJPp4e3zcv2fbt-XWz3maYV2LMZA2NyLmoC5kXqFleVshrLUSJDWskyrJG3TXQNlUBkmteSGPahnHNmOx0my9JMedi8DEG06khdYHwozhTEzu1VzM7NbFTM7tke5htJnU7WRNURGumB20wOCrt7f8Bv0Hie9E</recordid><startdate>20201101</startdate><enddate>20201101</enddate><creator>Cherecheş, Elena Ionela</creator><creator>Prado, Jose I.</creator><creator>Ibanescu, Constanta</creator><creator>Danu, Maricel</creator><creator>Minea, Alina Adriana</creator><creator>Lugo, Luis</creator><general>Elsevier B.V</general><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20201101</creationdate><title>Viscosity and isobaric specific heat capacity of alumina nanoparticle enhanced ionic liquids: An experimental approach</title><author>Cherecheş, Elena Ionela ; Prado, Jose I. ; Ibanescu, Constanta ; Danu, Maricel ; Minea, Alina Adriana ; Lugo, Luis</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c372t-68a9231284634cd0357c18d225c9096c658cdf9ab974a61d146eeb901d006fdb3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Al2O3 nanoparticles</topic><topic>Ionic liquids</topic><topic>Nanoparticle enhanced ionic liquids (NEILs)</topic><topic>Specific heat capacity</topic><topic>Viscosity</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Cherecheş, Elena Ionela</creatorcontrib><creatorcontrib>Prado, Jose I.</creatorcontrib><creatorcontrib>Ibanescu, Constanta</creatorcontrib><creatorcontrib>Danu, Maricel</creatorcontrib><creatorcontrib>Minea, Alina Adriana</creatorcontrib><creatorcontrib>Lugo, Luis</creatorcontrib><collection>CrossRef</collection><jtitle>Journal of molecular liquids</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Cherecheş, Elena Ionela</au><au>Prado, Jose I.</au><au>Ibanescu, Constanta</au><au>Danu, Maricel</au><au>Minea, Alina Adriana</au><au>Lugo, Luis</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Viscosity and isobaric specific heat capacity of alumina nanoparticle enhanced ionic liquids: An experimental approach</atitle><jtitle>Journal of molecular liquids</jtitle><date>2020-11-01</date><risdate>2020</risdate><volume>317</volume><spage>114020</spage><pages>114020-</pages><artnum>114020</artnum><issn>0167-7322</issn><eissn>1873-3166</eissn><abstract>Temperature and loading dependences on the rheological behavior and isobaric specific heat capacity of several suspensions of alumina nanoparticles in a binary mixture of [C2mim][CH3SO3] ionic liquid and water were experimentally determined to assess its potential condition of enhanced heat transfer fluids. Rheological tests show a clear Newtonian behavior for the base fluid and the NEILs with lower Al2O3 concentrations while higher amounts of alumina nanoparticles entail non-Newtonian fluids and increase in viscosity up to 78%. The heating-cooling viscosity tests reveal that no significant viscosity hysteresis occur and VFT equation adequately describe the temperature dependence. Isobaric specific heat capacities decrease (<10%) with nanoparticle mass fraction and increase (<10%) with temperature. The goodness of the Raud et al. correlation for predicting the isobaric specific heat capacity of nanoparticles enhanced fluids is discussed.
•New NEILs based on [C2mim][CH3SO3] ionic liquid + water and Al2O3 are proposed.•NEILs viscosity increases as 39–78% by dispersing nanoparticles.•Heating-cooling cycles dependence on the prepared samples viscosity.•VFT model describes viscosity values for the NEILs with deviations less than 1.3%.•Cp(T) curves entails an increase up to 10% for the selected IL + W as base fluid.</abstract><pub>Elsevier B.V</pub><doi>10.1016/j.molliq.2020.114020</doi></addata></record> |
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subjects | Al2O3 nanoparticles Ionic liquids Nanoparticle enhanced ionic liquids (NEILs) Specific heat capacity Viscosity |
title | Viscosity and isobaric specific heat capacity of alumina nanoparticle enhanced ionic liquids: An experimental approach |
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