태양열 집열기용 히트파이프 응축부 형상 변화에 따른 열성능 연구

Abstract

The purpose of this study was experimentally to investigate thermal performance of heat pipe for evacuated tubular solar collector. Two sets of evacuated tubular solar collector with different condenser shape of heat pipe were prepared. The experiments were performed under the same operating condition with an indoor testing apparatus. Also, the experiments were carried out various testing conditions including inclination, flow rate, and incident heat flux. The results of thermal performance of collector with enlarged condenser showed that was 0.6572 and was -2.0086 at 40°. And the results of thermal performance of collector with straight condenser showed that was 0.6233 and was -1.4996 at the same inclined angle.