태양열 및 보일러이용 온수난방 시스템에 관한 실험적 연구

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.