Proceedings of the SAREK Conference (대한설비공학회:학술대회논문집)
- 2005.11a
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- Pages.148-154
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- 2005
A Study on Development of a Ground-Source Heat Pump System Utilizing Pile Foundation of a Building
건물 기초를 이용한 지중열 공조시스템의 개발에 관한 연구 (1)
Abstract
Ground-source (Geothermal) heat pump (GSHP) systems can achieve a higher coefficient of performance than conventional air-source heat pump (ASHP) systems. However, GSHP systems are not widespread in Japan because of their expensive boring costs. The authors have developed a GSHP system that employs the cast-in-place concrete pile foundations of a building as heat exchangers in order to reduce the initial boring cost. In this system, eight U-tubes are arranged around the surface of a cast-in-place concrete pile foundation. The heat exchange capability of this system, subterranean temperature changes and heat pump performance were investigated in a foil-scale experiment. As a result, the average values for heat rejection were 186
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