루버핀 형상에 따른 공조기용 열교환기의 전열 및 착상성능

In order to develop the heat exchanger for outdoor unit with excellent heating and frosting performance, the heat exchanger with various shape of louver fin was investigated experimentally. The conditions to affect the heat exchanger performance such as outer diameter of tube, tube pitch, fin number were fixed. The same heat exchanging rate, the 25% reduction of air pressure drop, and 71% delay of frosting time were achieved by using the louver fin designed with small louvers placed only near the tube.