Journal of the Korean Solar Energy Society (한국태양에너지학회 논문집)

The Korean Solar Energy Society (한국태양에너지학회)
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Pre-Analysis Study on Ground Source Heat Pump System in Building with RETScreen

RETScreen을 활용한 건물에서의 지열 히트펌프 시스템 적용 사전 분석연구

  • Kim, Yu Jin (Dept. of Renewable Energy Engineering, University of Science and Technology) ;
  • Lee, Kwang-Seob (Dept. of Renewable Energy Engineering, University of Science and Technology) ;
  • Lee, Euy-Joon (Energy Efficiency Research Division, Korea Institute of Energy Research) ;
  • Kang, Eun-Chul (Energy Efficiency Research Division, Korea Institute of Energy Research)
  • 김유진 (과학기술연합대학원대학교 재생에너지공학과) ;
  • 이광섭 (과학기술연합대학원대학교 재생에너지공학과) ;
  • 이의준 (한국에너지기술연구원 에너지효율연구본부 열변환시스템연구실) ;
  • 강은철 (한국에너지기술연구원 에너지효율연구본부 열변환시스템연구실)
  • Received : 2019.09.23
  • Accepted : 2020.04.20
  • Published : 2020.04.30
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Abstract

Korea government published renewable energy obligation policy that public building must be supplied some part of total consumption energy (2019: 27%, 2020: 30%). RETScreen is freely available global energy tool that developed by Canadian National Energy Laboratory to quantify energy saving to compare conventional system. This program can be performed energy modeling, cost analysis, greenhouse gas emission analysis and financial analysis. In this study, GSHP (Ground source heat pump) heating and cooling system were studied for the energy deliverly and ROI (Return On Investment) in an office building. Three cases were studied according to the number of HP (Heat pump) units for the 1,000㎡ office building located in Daejeon. Results indicated that the energy delivery of the case 1 (1 HP unit) covered 57% of the office building heating and cooling energy consumption. The case 2 (2 HP units) covered 87.8% and the case 3 (3 HP units) covered 96.8% of the office building energy consumption. The ROI of the case 1 indicated 7.9 years. While 8.2 years for the case 2 and 9.7 years for the case 3.

Keywords

References

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