열전소자와 PHP를 이용한 화장품 냉장고의 냉각성능에 관한 연구

The purpose of this study is to improve the cooling performance of a cosmetic refrigerator using a thermoelectric module combined with a pulsating heat pipe. The pulsating heat pipe was used as a heat spreader and a heat sink for a thermoelectric module. Heat was absorbed and dissipated by combined the heat sink equipped with fans. Experiments with a 1 thermoelectric module (5.3 A/15.4 V, size: 40×40×4 ㎜) and a pulsating heat pipe (working fluid charging ratio, etc.) were performed. For the thermoelectric cooling system with a pulsating heat pipe, the temperatures in the cosmetic refrigerator are recorded and then compared with those of lumped system analysis. The results indicates that cooling capacity increases as temperature difference between hot and cold surface decreases.