Evaluation of air cooling performance using breathing effect of lotus wavy fins

Abstract

Air cooling technology is widely used for cooling electronic devices, air conditioning devices, and engines. In order to realize a highly information-oriented society in the near future, thermal management of many related electronic devices requires a new cooling technology that exhibits excellent cooling performance with much lower power consumption. In this study, we evaluate heat transfer performance of a new air-cooling technology with lotus copper wavy fins that introduces "breathing effect". The lotus fin has unidirectional pore structure that induces gas flow passing between the fins, which enhances the heat transfer performance.