Abstract
A passive cooling enhancement method is proposed, verified with simple model measurement and validated with numerical analysis. The multi channels built in an enclosure is a promising method to enhance the effectiveness of passive dissipation with dissipation with maintaining the surface temperature as its upper limit. To prove, the simplest two channel wall with copper plate and heater, which provides the uniform heat, is prepared. The PIV method is used for velocity distribution in a channel and temperature is measured in the same setup as well. The numerical analysis carried out with a model following the experimental setup. The comparison between the observations is discussed with fundamental analytic model. The results provide a strong evidence for the previous analytic optimization work, which suggested four fold improvements.
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