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태양열 냉난방시스템 중 액체흡수제 농도에 따른 난방성능에 관한 연구
백기동(G. D. Paek),김지원(J. W. Kim),Eflita Yohana,류남진(N. J. Ryu),최광환(K. H.. Choi) 한국태양에너지학회 2006 한국태양에너지학회 학술대회논문집 Vol.- No.-
Hot water gained from the solar collector installed on the roof could have a wide usage for replacing a conventional air conditioner. The aim is to adopt a new device into a all-terrian system enable to perform heating and cooling effect. In this paper, several different experiments were conducted for investigating the possibility of actual heating system mainly being operated by solar collector and regenerator. The experimental apparatus was fabricated and tested practically in connection with solar heating system during daytime. As a result, it was clear that this system has many advantages of heating and humidifying of room without a huge heater and humidifier, especially in winter and can save a lot of electricities compared to a conventional air conditioner.
태양열 및 보일러이용 온수난방 시스템에 관한 실험적 연구
박윤철(Y. C. Park ),김현석(H. S. Kim ),류남진(N. J. Ryu ) 한국동력기계공학회 2009 한국동력기계공학회 학술대회 논문집 Vol.2009 No.6
The solar energy is limitless and pollution-free natural energy; however, the solar energy has not been utilized extensively due to its low density and restriction of availability. This study was conducted to analyze operating characteristic of a solar assisted heating system for hot water supply and panel heating of a house. The main part of the system is a thermal storage tank which was designed to store energy that obtained from solar collectors and a burner. The heat exchanger is located on bottom of the storage tank which supplies solar energy to the water in the storage tank and is connected directly to the solar collector. As an additional heat source, a burner was inserted to the top of the storage tank and supplies energy to water in the storage tank through indirect contact of the fire frame and stack flue. And also a small tank for hot water heating was attached at inside of the thermal storage tank. The water in the tank is heated by the water in the thermal storage tank. As results, if design temperature of the boiler is increased, the efficiency of system is decreased. When the system uses hot water, system performance is decreased as increasing of the warm water usage. The developed system can be used as main heating equipment to the residential with the panel heating.