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자료유형
학술대회자료
저자정보
백영진 (한국에너지기술연구원) 김민성 (한국에너지기술연구원) 장기창 (한국에너지기술연구원) 강병찬 (한국에너지기술연구원) 라호상 (한국에너지기술연구원) 김현주 (한국해양연구원)
저널정보
한국태양에너지학회 한국태양에너지학회 학술대회논문집 한국태양에너지학회 2012년도 춘계학술발표대회 논문집
발행연도
2012.3
수록면
488 - 493 (6page)

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In this study, in order to utilize the seawater as a heat source at Gangneung city near the East Sea in Korea, an annual heating performance of a screw heat pump was simulated. For a simulation, the maximum heating capacity of heat pump was assumed at 3.5 MW. An ambient temperature at Gangneung city was calculated from the TMY2 weather data, while the seawater temperature was calculated from the regression equation based on the measurement by the National Fisheries Research and Development Institute of Korea. The heating load was assumed linearly dependent on the ambient temperature, while the maximum heating load was assumed to appear when the ambient temperature is below -2.4 °C, which is the temperature of TAC 2.5% for heating at Gangneung city. A heat pump performance at full-load was calculated from the regression equation, which involves refrigerant"s evaporating and condensing temperatures, based on a commercial screw compressor performance map. A heating supply temperature which determines refrigerant"s condensing temperature was assumed linearly dependent on the heating load. A performance degradation due to the part-load operation of heat pump was also considered. Simulation results show that an annual heating coefficient of performance (COPh) of a seawater-source screw heat pump is approximately 2.8 and that it is necessary to improve part-load performance to increase an annual performance of the heat pump.

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Abstract
1. 서론
2. 모델링 및 시뮬레이션
3. 결과 및 고찰
4. 결론
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