Journal of the Korean Society for Geothermal and Hydrothermal Energy (한국지열·수열에너지학회논문집)

Korean Society for Geothermal and Hydrothermal Energy (한국지열·수열에너지학회)
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Cooling Performance of Cooling Tower-Assisted Ground-Coupled Heat Pump (GCHP) System Applied in Hospital Building

병원 건물에 설치된 냉각탑 병용 지열 히트펌프 시스템의 냉방 성능

  • 손병후 (한국건설기술연구원 건축도시연구소) ;
  • 이두영 (코텍엔지니어링(주) 기술연구소) ;
  • 민경천 (코텍엔지니어링(주) 기술연구소)
  • Received : 2016.01.28
  • Accepted : 2016.02.26
  • Published : 2016.03.01
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Abstract

This paper presents the measurement and analysis results for the cooling performance of ground-coupled heat pump (GCHP) system using a cooling tower as a supplemental heat rejector. In order to demonstrate the performance of the hybrid approach, we installed the monitoring equipments including sensors for measuring temperature and power consumption, and measured operation parameters from May 1 to October 30, 2014. The results showed that the entering source temperature of brine returning from the ground heat exchanger was in a range of design target temperature. Leaving load temperatures to building showed an average value of $11.4^{\circ}C$ for cooling season. From the analysis, the daily performance factor (PF) of geothermal heat pumps ranged from 4.4 to 5.2, while the daily PF of hybrid GCHP system varied from 3.0 to 4.0 over the entire cooling season.

Keywords

References

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