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진동형 히트파이프를 이용한 도로융설 시스템 개발에 관한 연구
손길재(Kil-Jae Son),우재호(Jae-Ho Woo),김종수(Jong-Soo Kim) 대한기계학회 2009 대한기계학회 춘추학술대회 Vol.2009 No.5
Many car accidents are happened on the road frequently due to heavy snow and water freezing in the winter. In order to resolve this problems, we are spending a lot of money and manpower. This study is performed to reduce the cost and manpower by the problems. A study on the snow melting and deicing system by pulsating heat pipe is about road facilities to keep surface temperature of the road higher than freezing point of water for melting the snow accumulated on it. The pulsating heat pipe is located under paved road at a certain depth and pitch and operated automatically and manually. This study shows the optimized pitch and depth of the pipe under paved road. to get the best performance.
Bubble Jet을 이용한 Loop Heat Pipe의 개발
공상운(Sang Woon Kong),하수정(Soo Jung Ha),장정완(Jeong Wan Jang),황종호(Jong Ho Hwang),손길재(Kil Jae Son),이현직(Hyun Jik Lee),김종수(Jong Soo Kim) 대한설비공학회 2009 대한설비공학회 학술발표대회논문집 Vol.2009 No.-
Bubble jet loop heat pipe is a newly devised variation of heat pipe in which heat is effectively transported by the latent heat of evaporation and condensation as well as the heat capacity of circulating working fluid. The circulatory and oscillating motion of the working fluid becomes possible by the motion of bubble jet which is generated at a narrow circular gap. These bubbles are condensed at the condensing section. Bubble jet loop heat pipe makes it possible to carry heat long distances upward and horizontal directions. Because Its structure is a very simple and a low cost, it is available for the floor heating, vinyl house heating, the defrosting of heat pump system and home refrigerator.
Bubble Jet Loop Heat Pipe의 유동 가시화
이현직(Hyun-Jik Lee),공상운(Sang-Woon Kong),하수정(Soo-Jung Ha),황종호(Jong-Ho Hwang),장정완(Jeong-Wan Jang),손길재(Kil-Jae Son),김종수(Jong-Soo Kim) 대한설비공학회 2009 대한설비공학회 학술발표대회논문집 Vol.2009 No.-
Bubble jet loop heat pipe is what heat pipe operate in the horizontality. It is consist of one heating part creating bubble and one rounded U tube type radiator. This study shows whether the heat pipe operates well in the horizontality or not, and what optimized refrigerant charging rate is in the tube. But flow visualization of bubble jet heat pipe was not known. The purpose of this study is to visualize bubble jet loop heat pipe. The experiment was performed by changes of charging rate. Working fluid was R-141b. And heater of 220 V & 100 W was used. we take a photograph of flow visualization of bubble jet loop heat pipe in slow motion.