Combining the heat recovery technology of heat pipe and evaporative cooling technology, this article researched a heat recovery heat pipe-type indirect evaporative cooling air-conditioning unit and tested this unit. Based on analyzing we got main perfoprmance factors and best operation parameters. The best ratio of volume of secondary air and primary air is 0.8, the best water delivery is 0.322 m3/h, the efficiency of heat pipe-type indirect evaporative cooler is 70.39％.This research provided reliable reference for the research and development of air-conditioning unit.
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