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Effect of clustering on the thermal conductivity of nanofluids
We synthesis CuO nanoparticles of average diameter 8 nm by a simple precipitation technique and study the thermal properties of the suspensions. The thermal conductivity enhancement observed in water and ethylene glycol based nanofluids with 1 vol.% CuO nanoparticles loading are 31.6 and 54%, respec...
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| Published in: | Materials chemistry and physics 2008-05, Vol.109 (1), p.50-55 |
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| Main Authors: | , , |
| Format: | Article |
| Language: | English |
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| cited_by | cdi_FETCH-LOGICAL-c418t-961a6bb4ebb4d15521e54a612878984cc9d52f9bb9cf44f9008b080e1daa33233 |
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| cites | cdi_FETCH-LOGICAL-c418t-961a6bb4ebb4d15521e54a612878984cc9d52f9bb9cf44f9008b080e1daa33233 |
| container_end_page | 55 |
| container_issue | 1 |
| container_start_page | 50 |
| container_title | Materials chemistry and physics |
| container_volume | 109 |
| creator | Karthikeyan, N.R. Philip, John Raj, Baldev |
| description | We synthesis CuO nanoparticles of average diameter 8
nm by a simple precipitation technique and study the thermal properties of the suspensions. The thermal conductivity enhancement observed in water and ethylene glycol based nanofluids with 1
vol.% CuO nanoparticles loading are 31.6 and 54%, respectively. The large enhancement in thermal conductivity is attributed to the finer particle size and monodispersity of nanoparticles. It has been found that the thermal conductivity of the nanofluid increases nonlinearly with the volume fraction of nanoparticles. The time-dependent thermal conductivity in water based CuO nanofluid shows that the thermal conductivity decreases with elapsed time due to clustering of nanoparticles with time, as confirmed microscopically. The experimental results show that the nanoparticles size, polydispersity, cluster size and the volume fraction of particles have a significant influence on thermal conductivity. |
| doi_str_mv | 10.1016/j.matchemphys.2007.10.029 |
| format | article |
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nm by a simple precipitation technique and study the thermal properties of the suspensions. The thermal conductivity enhancement observed in water and ethylene glycol based nanofluids with 1
vol.% CuO nanoparticles loading are 31.6 and 54%, respectively. The large enhancement in thermal conductivity is attributed to the finer particle size and monodispersity of nanoparticles. It has been found that the thermal conductivity of the nanofluid increases nonlinearly with the volume fraction of nanoparticles. The time-dependent thermal conductivity in water based CuO nanofluid shows that the thermal conductivity decreases with elapsed time due to clustering of nanoparticles with time, as confirmed microscopically. The experimental results show that the nanoparticles size, polydispersity, cluster size and the volume fraction of particles have a significant influence on thermal conductivity.</description><identifier>ISSN: 0254-0584</identifier><identifier>EISSN: 1879-3312</identifier><identifier>DOI: 10.1016/j.matchemphys.2007.10.029</identifier><language>eng</language><publisher>Elsevier B.V</publisher><subject>CuO nanoparticles ; Heat transfer fluid ; Nanofluid ; Thermal properties</subject><ispartof>Materials chemistry and physics, 2008-05, Vol.109 (1), p.50-55</ispartof><rights>2007 Elsevier B.V.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c418t-961a6bb4ebb4d15521e54a612878984cc9d52f9bb9cf44f9008b080e1daa33233</citedby><cites>FETCH-LOGICAL-c418t-961a6bb4ebb4d15521e54a612878984cc9d52f9bb9cf44f9008b080e1daa33233</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>Karthikeyan, N.R.</creatorcontrib><creatorcontrib>Philip, John</creatorcontrib><creatorcontrib>Raj, Baldev</creatorcontrib><title>Effect of clustering on the thermal conductivity of nanofluids</title><title>Materials chemistry and physics</title><description>We synthesis CuO nanoparticles of average diameter 8
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vol.% CuO nanoparticles loading are 31.6 and 54%, respectively. The large enhancement in thermal conductivity is attributed to the finer particle size and monodispersity of nanoparticles. It has been found that the thermal conductivity of the nanofluid increases nonlinearly with the volume fraction of nanoparticles. The time-dependent thermal conductivity in water based CuO nanofluid shows that the thermal conductivity decreases with elapsed time due to clustering of nanoparticles with time, as confirmed microscopically. The experimental results show that the nanoparticles size, polydispersity, cluster size and the volume fraction of particles have a significant influence on thermal conductivity.</description><subject>CuO nanoparticles</subject><subject>Heat transfer fluid</subject><subject>Nanofluid</subject><subject>Thermal properties</subject><issn>0254-0584</issn><issn>1879-3312</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><recordid>eNqNkE9LxDAQxYMouK5-h3rx1jWTpm1yEWTxHyx40XNI04mbpW3WJF3Yb2_LevDo4TEw896D-RFyC3QFFKr73arXyWyx32-PccUoraf9ijJ5RhYgapkXBbBzsqCs5DktBb8kVzHuKIUaoFiQhydr0aTM28x0Y0wY3PCV-SFLW5wVet1lxg_taJI7uHScnYMevO1G18ZrcmF1F_Hmdy7J5_PTx_o137y_vK0fN7nhIFIuK9BV03Cc1EJZMsCS6wqYqIUU3BjZlszKppHGcm4lpaKhgiK0WhcFK4oluTv17oP_HjEm1btosOv0gH6MavJUrKazUZ6MJvgYA1q1D67X4aiAqpmY2qk_xNRMbD5NxKbs-pTF6ZODw6CicTgYbF2YGKnWu3-0_ABsA3sP</recordid><startdate>20080515</startdate><enddate>20080515</enddate><creator>Karthikeyan, N.R.</creator><creator>Philip, John</creator><creator>Raj, Baldev</creator><general>Elsevier B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20080515</creationdate><title>Effect of clustering on the thermal conductivity of nanofluids</title><author>Karthikeyan, N.R. ; Philip, John ; Raj, Baldev</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c418t-961a6bb4ebb4d15521e54a612878984cc9d52f9bb9cf44f9008b080e1daa33233</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>CuO nanoparticles</topic><topic>Heat transfer fluid</topic><topic>Nanofluid</topic><topic>Thermal properties</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Karthikeyan, N.R.</creatorcontrib><creatorcontrib>Philip, John</creatorcontrib><creatorcontrib>Raj, Baldev</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Materials chemistry and physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Karthikeyan, N.R.</au><au>Philip, John</au><au>Raj, Baldev</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of clustering on the thermal conductivity of nanofluids</atitle><jtitle>Materials chemistry and physics</jtitle><date>2008-05-15</date><risdate>2008</risdate><volume>109</volume><issue>1</issue><spage>50</spage><epage>55</epage><pages>50-55</pages><issn>0254-0584</issn><eissn>1879-3312</eissn><abstract>We synthesis CuO nanoparticles of average diameter 8
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vol.% CuO nanoparticles loading are 31.6 and 54%, respectively. The large enhancement in thermal conductivity is attributed to the finer particle size and monodispersity of nanoparticles. It has been found that the thermal conductivity of the nanofluid increases nonlinearly with the volume fraction of nanoparticles. The time-dependent thermal conductivity in water based CuO nanofluid shows that the thermal conductivity decreases with elapsed time due to clustering of nanoparticles with time, as confirmed microscopically. The experimental results show that the nanoparticles size, polydispersity, cluster size and the volume fraction of particles have a significant influence on thermal conductivity.</abstract><pub>Elsevier B.V</pub><doi>10.1016/j.matchemphys.2007.10.029</doi><tpages>6</tpages></addata></record> |
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| ispartof | Materials chemistry and physics, 2008-05, Vol.109 (1), p.50-55 |
| issn | 0254-0584 1879-3312 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_32362703 |
| source | Elsevier:Jisc Collections:Elsevier Read and Publish Agreement 2022-2024:Freedom Collection (Reading list) |
| subjects | CuO nanoparticles Heat transfer fluid Nanofluid Thermal properties |
| title | Effect of clustering on the thermal conductivity of nanofluids |
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