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Flow Distribution and Heat Transfer Characteristic of the Microchannel Waterblock with Different Shape of Inlet  

Choi, Mi-Jin (Energy System Technology Center, Korea Institute of Industrial Technology)
Kwon, Oh-Kyung (Energy System Technology Center, Korea Institute of Industrial Technology)
Yun, Jae-Ho (Energy System Technology Center, Korea Institute of Industrial Technology)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.21, no.7, 2009 , pp. 386-393 More about this Journal
Abstract
The present study has been studied on a thermal and flow characteristic of the microchannel waterblock with flow distributions in each channels. Results of a numerical analysis using the CFX-11 are compared with results of an experiment. Numerical analysis and experiment are conducted under an input power of 150 W, inlet temperature of $20^{\circ}C$ and mass flow rates of $0.7{\sim}2.0$ kg/min. Base temperature and pressure drop are investigated with standard deviations of mass flow rates in each channels of samples. The flow distribution and j/f factor of the sample 4 is increased by about 65.7% and 42.6%, compared to that of the reference model sample 3.
Keywords
Microchannel waterblock; Flow distributions; Base temperature; Pressure drop;
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Times Cited By KSCI : 2  (Citation Analysis)
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