Etienne Costa-Patrya, Jonathan Olivierb, John R. Thomea,∗
Frontiers in Heat and Mass Transfer, Vol.3, No.1, pp. 1-14, 2012, DOI:10.5098/hmt.v3.1.3002
Abstract This article presents new experimental results for two-phase flow boiling of R-134a, R-1234ze(E) and R-245fa in a micro-evaporator. The test section
was made of copper and composed of 52 microchannels 163μm wide and 1560μm high with the channels separated by 178μm wide fins. The
channels were 13.2mm long. There were 35 local heaters and temperature measurements arranged in a 5×7 array as a pseudo-CPU. The total pressure
drops of the test section were below 20kPa in all cases. The wall heat transfer coefficients were generally above 10’000W/m2K and a function of
the heat flux, vapor quality and mass flux. A… More >
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