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ISSN Online: 2377-424X

ISBN Print: 978-1-56700-474-8

ISBN Online: 978-1-56700-473-1

International Heat Transfer Conference 16
August, 10-15, 2018, Beijing, China

EXPERIMENTAL INVESTIGATION OF GAS THROTTLING IN MICROCHANNELS FOR ELECTRONIC COOLING

Get access (open in a dialog) DOI: 10.1615/IHTC16.ctm.021954
pages 3873-3880

Résumé

This experimental investigation was intended to evaluate the capability of micro-coolers designed with microchannel for electronic cooling. Two prototypes of micro-cooler were fabricated for the experiments. Both of them had a counter-flow heat exchanger, which consisted of 7 layers of microchannel. Each layer had 6 microchannels. The throttling process was carried out with gas flowing through microchannels of smaller size. The two prototypes of micro-cooler had similar configuration but different cross-sectional area of microchannels for the heat exchanger and the throttle. In the experiments the temperature of several locations along the surfaces of the micro-coolers was measured. Experiments with different gas inlet pressure and temperature were carried out and experimental results were obtained. It showed that for the throttling process the higher the inlet gas pressure, the larger the temperature drop. And for inlet temperature, the lower the inlet gas temperature, the larger the temperature drop. From the experiment results, the cooled gas after throttling could be used for cooling electronic devices with high-heat-flux. It can be considered as one of the prospective electronic cooling methods for further study.