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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Operating Cost Analysis of a High Temperature Ground Source Heat Pump System for a Greenhouse

시설원예용 대온도차 지열원 히트펌프 운전비용 효과 분석

  • Kang, Shin-Hyung (Department of Mechanical Engineering, Konyang University) ;
  • Park, Seung Byung (Graduate School of Mechanical Engineering, Hanbant National University) ;
  • Choi, Jong Min (Department of Mechanical Engineering, Konyang University)
  • 강신형 (건양대학교 기계공학과) ;
  • 박승병 (한밭대학교 기계공학과 대학원) ;
  • 최종민 (한밭대학교 기계공학과)
  • Received : 2016.02.12
  • Accepted : 2016.02.23
  • Published : 2016.03.01
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Abstract

It is very important to obtain a out-of season production in horticultural greenhouses corresponding with higher crop prices. A ground source heat pump system has been highly spotlighed as an energy efficient heating system for the greenhouse. This paper investigated the operating cost of the ground source heat pump system with the variation of generating temperature and designing methods for heating system of the greenhouse. Even though the COP of the ground source heat pump system decreased with an increment of generating temperature in heating mode, the operating cost could be reduced. By adopting the high temperature heat pump system and heat storage tank, it could be achieved to save energy and reduce the operating time of auxiliary oil heating system for producing good plant-growth in the greenhouse.

Keywords

References

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