Heat transfer and pressure drop characteristics of a plate heat exchanger using water based Al2O3 nanofluid for 30° and 60° chevron angles
Document Type
Article
Publication Date
1-1-2018
Abstract
Nanofluid is a new class of engineering fluid that has good heat transfer characteristics which is essential to increase the heat transfer performance in various engineering applications such as heat exchangers and cooling of electronics. In this study, experiments were conducted to compare the heat transfer performance and pressure drop characteristics in a plate heat exchanger (PHE) for 30° and 60° chevron angles using water based Al2O3 nanofluid at the concentrations from 0 to 0.5 vol.% for different Reynolds numbers. The thermo-physical properties has been determined and presented in this paper. At 0.5 vol% concentration, the maximum heat transfer coefficient, the overall heat transfer coefficient and the heat transfer rate for 60° chevron angle have attained a higher percentage of 15.14%, 7.8% and 15.4%, respectively in comparison with the base fluid. Consequently, when the volume concentration or Reynolds number increases, the heat transfer coefficient and the overall heat transfer coefficient as well as the heat transfer rate of the PHE (Plate Heat Exchangers) increases respectively. Similarly, the pressure drop increases with the volume concentration. 60° chevron angle showed better performance in comparison with 30° chevron angle.
Keywords
Cooling of electronics, Engineering applications, Heat transfer and pressure drop characteristics, Heat transfer characteristics, Heat transfer performance, Overall heat transfer coefficient, Pressure drop characteristic, Thermo-physical property
Divisions
fac_eng,umpedac
Funders
Ministry of Higher Education Malaysia (MoHE): financial support under UM MoHE High Impact Research Grant (HIRG) scheme (Project no: UM.C/HIR/MoHE/ENG/40)
Publication Title
Heat and Mass Transfer
Volume
54
Issue
10
Publisher
Springer Verlag (Germany)
Publisher Location
VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS