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http://dx.doi.org/10.9726/kspse.2012.16.4.037

Forced convective Heat Transfer in rectangular channel  

Lim, T.W. (Division of Marine System Engineering Korea Maritime University)
You, S.S. (Division of Mechanical & Energy Systems Engineering, Korea Maritime University)
Publication Information
Journal of Power System Engineering / v.16, no.4, 2012 , pp. 37-43 More about this Journal
Abstract
This paper performed experimental research in order to measure boiling heat transfer coefficient of water in microchannel with hydraulic diameter of $500{\mu}m$. Tests were conducted within the ranges of heat fluxes from 100 to 400 kW/$m^2$, vapor qualities from 0 to 0.2, and mass fluxes of 200, 400, and 600 kg/$m^2s$. From the experimental results, it was found that flow boiling heat transfer coefficient is not dependent on mass flux or vapor quality, but instead on heat flux to a certain degree. The measured data of heat transfer are compared to a few available correlations proposed for mini-channels. Among them, Sun and Mishima's correlation is found to predict the present data well, within the mean absolute error of 17.84%.
Keywords
Forced convective heat Transfer; Mini/micro-channel; Two-phase flow; Vapor quality;
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