期刊
出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s40430-020-02459-3
关键词
Plate heat exchanger; Coolant; Hybrid nanofluids; Graphene; Heat transfer coefficient; Heat transfer rate
An experimental investigation is conducted with graphene-Al(2)O(3)hybrid nanofluid as a coolant in corrugated surface plate heat exchanger to study energetic performance. The combinations studied are Al2O3-graphene in 4:1 nanoparticle ratio and 100% Al(2)O(3)nanoparticle with 0.01 v % concentration in DI water. Effect of coolant flow rates (2.0-4.0 lpm) and coolant inlet temperatures (10-25 degrees C) on various factors like coolant outlet temperature, heat transfer rate, convective heat transfer coefficient, pressure drop, and heat transfer coefficient to pressure drop ratio has been investigated. Maximum enhancements of around 2.5%, 5.34%, 25.36%, and 23.8% are observed in the coolant outlet temperature, heat transfer rate, heat transfer coefficient, and heat transfer coefficient to pressure drop ratio, respectively, for Al2O3-graphene hybrid nanofluid.
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