PCM을 적용한 자연대류형 수냉식 방열기의 냉각특성에 관한 실험적 연구

Abstract

The liquid cooling effect of a natural convection type radiator by using the PCM has been investigated experimentally. The radiator size is 423×295×83 ㎜ and PCM container size is 398×270×26 ㎜. The objective is elapsed time higher than maximum time to reach for maximum operating temperature of a general liquid cooling radiator. This study, in order to study on the effects of the phase-change phenomenon, carried out the various mass flow rate, input electric power, ambient and melting point of three type PCM. For the above experimental parameter, the melting time was performed about 180/250/560 min at input power 150 W and ambient 30℃ from using the three type PCM(PCM_S1/S2/S3) respectively. Furthermore, the effects of the thermal dissipation was decreased higher input power than lower input power at heating block and melting time of PCM. However, the effects of mass flow rate did not nearly affect of the thermal performance especially.