Abstract
ABSTRACT:Ground-coupled heat pump(GCHP) systems have been shown to be an environ- mentally-friendly, efficient alternative to traditional cooling and heating systems in both residential and commercial applications. Although some work related to performance evaluation of GCHP systems for commercial buildings has been done, relatively little has been reported on the residential applications. The aim of this study is to evaluate the cooling and heating performances of a vertical GCHP system applied to an artificial detached house(117 m 2 ) in Seoul. For this purpose, a typical design procedure was involved with a combination of design parameters such as building loads, heat pump capacity, borehole diameter, and ground thermal properties, etc. The cooling and heating performance simulation of the system was conducted with different prediction times of 8760 hours and 240 months. The performance characteristics including seasonal system COP, average annual power consumption, and temperature variations related to ground heat exchanger were calculated and compared.Keywords:Ground-coupled heat pump(지열 히트펌프), Vertical ground heat exchanger(수직형 지중열교환기), Detached house(단독주택), Hourly performance simulation(시간대별 성능 분석), Monthly performance simulation(월간 성능 분석)
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