期刊
HEAT TRANSFER-ASIAN RESEARCH
卷 46, 期 7, 页码 978-995出版社
WILEY
DOI: 10.1002/htj.21254
关键词
louvered fin; hybrid nanofluids; size; pumping power; cost
This study deals with the theoretical enhancement of thermal performance using water-based (50/50) volume fraction of Fe2O3, CuO, TiO2, Ag, Cu in Al2O3 hybrid nanofluids as coolants for a louvered fin automobile radiator. The effects on thermophysical properties and various performance parameters, i. e., heat transfer, effectiveness, and pumping power of hybrid nanofluids have been compared with water. Among all studied hybrid nanofluids, Al2O3-Ag/water hybrid nanofluid has higher effectiveness, heat transfer rate, pumping power, and pressure drop of 0.8%, 3%, 6%, and 5.6%, respectively, as compared to water and is followed by (50/50) volume fraction of Cu, CuO, Fe2O3, TiO2 hybrid nanofluids as radiator coolant. For the same radiator size and heat transfer rate, coolant flow rate and pumping work decreases by 3%, 4%, respectively, for Al2O3-Ag/water hybrid nanofluid and for the same coolant flow rate and heat transfer rate the radiator size decreases by 3% and pumping power increases by 3.4% for Al2O3-Ag/water hybrid nanofluid as compared to water. Reduction in radiator size may lead to a reduction in radiator cost, engine fuel consumption, and environmental benefit. (C) 2016 Wiley Periodicals, Inc.
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