마이크로 채널에서 물의 비등 열전달 특성 (original) (raw)
마이크로 채널에서 물의 비등 열전달 특성
2011, Journal of the Korean Society of Marine Engineering
An experimental study was carried out to measure the heat transfer coefficient in flow boiling to deionized water in a microchannel having a hydraulic diameter of 500m. Tests were performed in the ranges of heat fluxes from 100 to 400 kW/㎡, vapor qualities from 0 to 0.2 and mass fluxes of 200, 400 and 600 kg/m 2 s. From the experimental results, it is found that the measured heat transfer coefficients is independent of mass flux and quality, and is somewhat dependent of heat flux. Measured data of heat transfer are compared to a few available correlations proposed for macroscale. The previous correlations for macroscale overpredicted the flow boiling heat transfer coefficient for the test conditions considered in this work.
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