Ammar Hassan Soheel, Omar Mahmood Jumaah, Ahmed Mustaffa Saleem*
Frontiers in Heat and Mass Transfer, Vol.17, pp. 1-7, 2021, DOI:10.5098/hmt.17.21
Abstract This paper presents a simulation and investigation of the heat transfer coefficient, pressure drop, and thermal conductivity of two - phase flow. The
simulation was performed of mixtures (Al2O3 nanoparticles with R134a refrigerant). The size of nanoparticles (Al2O3) which is used in this study is 30
nm and volume concentrations are 0.015 and 0.03. The two – phase flowing through a horizontal circular microchannel of (diameter 100 µm, and
length 20 mm) under constant heat flux (3000 W/m2) and constant wall temperature (330 K), also in this study used the inlet temperature at -20 oC and
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