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Article: Experimental investigation of thermal and electrical conductivity of silicon oxide nanofluids in ethylene glycol / water mixture
Title | Experimental investigation of thermal and electrical conductivity of silicon oxide nanofluids in ethylene glycol / water mixture |
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Authors | |
Keywords | Electrical conduction mechanism Electrical conductivity SiO2 nanofluids Thermal conductivity Thermo-electrical conductivity ratio |
Issue Date | 2018 |
Publisher | Pergamon. The Journal's web site is located at http://www.elsevier.com/locate/ijhmt |
Citation | International Journal of Heat and Mass Transfer, 2018, v. 117, p. 280-286 How to Cite? |
Abstract | In this paper, the thermal conductivity and electrical conductivity of SiO2 nanofluids using mixture of ethylene glycol (EG) and water (H2O) as the base fluid are investigated. The two-step method was used to prepare SiO2-EG/H2O nanofluids with a mass concentration of 0.3%. The variations in thermal conduc- tivity and electrical conductivity as functions of EG concentration (0–100%, v/v) and temperature (25–45 C) are present. Experimental results showed that the thermal conductivity and electrical conductivity of SiO2-EG/H2O nanofluids both decreased as the EG content percentage increases in the EG/H2O mixture. At a specific EG content percentage, thermal conductivity and electrical conductivity both increased with the increase in temperature. To better evaluate the enhancement performance of SiO2-EG/H2O nanoflu- ids, the relative electrical conductivity was introduced and studied explicitly. The mechanism of electrical conductivity enhancement in SiO2-EG/H2O nanofluids was analyzed in detail. Meanwhile, the ratio of thermal conductivity and electrical conductivity was also discussed. |
Persistent Identifier | http://hdl.handle.net/10722/258579 |
ISSN | 2023 Impact Factor: 5.0 2023 SCImago Journal Rankings: 1.224 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Guo, Y | - |
dc.contributor.author | Zhang, T | - |
dc.contributor.author | Zhang, D | - |
dc.contributor.author | Wang, Q | - |
dc.date.accessioned | 2018-08-22T01:40:47Z | - |
dc.date.available | 2018-08-22T01:40:47Z | - |
dc.date.issued | 2018 | - |
dc.identifier.citation | International Journal of Heat and Mass Transfer, 2018, v. 117, p. 280-286 | - |
dc.identifier.issn | 0017-9310 | - |
dc.identifier.uri | http://hdl.handle.net/10722/258579 | - |
dc.description.abstract | In this paper, the thermal conductivity and electrical conductivity of SiO2 nanofluids using mixture of ethylene glycol (EG) and water (H2O) as the base fluid are investigated. The two-step method was used to prepare SiO2-EG/H2O nanofluids with a mass concentration of 0.3%. The variations in thermal conduc- tivity and electrical conductivity as functions of EG concentration (0–100%, v/v) and temperature (25–45 C) are present. Experimental results showed that the thermal conductivity and electrical conductivity of SiO2-EG/H2O nanofluids both decreased as the EG content percentage increases in the EG/H2O mixture. At a specific EG content percentage, thermal conductivity and electrical conductivity both increased with the increase in temperature. To better evaluate the enhancement performance of SiO2-EG/H2O nanoflu- ids, the relative electrical conductivity was introduced and studied explicitly. The mechanism of electrical conductivity enhancement in SiO2-EG/H2O nanofluids was analyzed in detail. Meanwhile, the ratio of thermal conductivity and electrical conductivity was also discussed. | - |
dc.language | eng | - |
dc.publisher | Pergamon. The Journal's web site is located at http://www.elsevier.com/locate/ijhmt | - |
dc.relation.ispartof | International Journal of Heat and Mass Transfer | - |
dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. | - |
dc.subject | Electrical conduction mechanism | - |
dc.subject | Electrical conductivity | - |
dc.subject | SiO2 nanofluids | - |
dc.subject | Thermal conductivity | - |
dc.subject | Thermo-electrical conductivity ratio | - |
dc.title | Experimental investigation of thermal and electrical conductivity of silicon oxide nanofluids in ethylene glycol / water mixture | - |
dc.type | Article | - |
dc.identifier.email | Guo, Y: yfguo@hku.hk | - |
dc.description.nature | postprint | - |
dc.identifier.doi | 10.1016/j.ijheatmasstransfer.2017.09.091 | - |
dc.identifier.scopus | eid_2-s2.0-85031035738 | - |
dc.identifier.hkuros | 286749 | - |
dc.identifier.volume | 117 | - |
dc.identifier.spage | 280 | - |
dc.identifier.epage | 286 | - |
dc.identifier.isi | WOS:000417963300026 | - |
dc.publisher.place | United Kingdom | - |
dc.identifier.issnl | 0017-9310 | - |