한국신재생에너지학회:학술대회논문집
- 2005.06a
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- Pages.684-687
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- 2005
A Study on Heat Transfer Performance of Horizontal Ground Heat Exchanger
수평형 지중열교환기의 열전달 성능에 관한 연구
Abstract
Ground source heat pump systems are used for heating, ventilating and air-conditioning systems in commercial buildings, schools, and factories because of low operating and maintenance costs. These systems use the earth as a heat source in heating mode and a heat sink in cooling mode. Ground heat exchangers are classified by a horizontal type and vertical type according to the installation method. A horizontal type means that a heat exchanger is laid in the trench bored in 1.2 to 1.8 m depth. The solar heat and the rainwater are affected by the performance of heat exchanger and causes mutual influence among heat exchangers. In this study, to evaluate the performance of straight type, slinky type, and spiral type of horizontal ground heat exchangers designed on 1 RT scale, test sections are buried on the earth and experimental apparatus is installed. Therefore the performance of these is estimated.
Keywords
- Ground source heat pump;
- Horizontal ground heat exchanger;
- Thermal conductivity;
- Thermal response test
- 지열히트펌프;
- 수평형 지중열교환기;
- 열전도도;
- 열응답테스트;