Experimental and numerical investigation of thermophysical properties, heat transfer and pressure drop of covalent and noncovalent functionalized graphene nanoplatelet-based water nanofluids in an annular heat exchanger
作者： Hamed Khajeh Arzani , Ahmad Amiri , S.N. Kazi , B.T. Chew , A. Badarudin
DOI: 10.1016/J.ICHEATMASSTRANSFER.2015.09.007
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摘要: Abstract The new design of heat exchangers utilizing an annular distributor opens a gateway for realizing higher energy optimization. To realize this goal, graphene nanoplatelet-based water nanofluids with promising thermophysical properties were synthesized in the presence covalent and noncovalent functionalization. Thermal conductivity, density, viscosity specific capacity investigated employed as raw data ANSYS-Fluent to be used two-phase approach. After validation obtained results by analytical equations, two special parameters convective transfer coefficient pressure drop investigated. study followed studying other pass nanopleteles-based at different weight concentrations, input powers temperatures. As result, Nusselt number profiles friction factor are measured both nanofluids.
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