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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A Study on Comparative Analysis of Energy Performance of Hybrid Heat Pump Systems Using Ground Heat Source and Water Heat Source

지열원과 수열원을 이용한 하이브리드 히트펌프 시스템의 에너지 성능 비교 분석 연구

  • Park, Sihun (Department of Mechanical Engineering, KyungHee University) ;
  • Kim, Jonghyun (Department of Green Energy Installation, Seoul Jungsu Campus of Korea Polytechnic) ;
  • Min, Joonki (Department of Mechanical Engineering, KyungHee University)
  • 박시훈 (경희대학교 기계공학과) ;
  • 김종현 (한국폴리텍1대학 서울정수캠퍼스 그린에너지설비과) ;
  • 민준기 (경희대학교 기계공학과)
  • Received : 2021.11.01
  • Accepted : 2021.11.26
  • Published : 2021.12.01
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Abstract

In this study, the performance of the single heat source system and the hybrid system was comparatively analyzed. Case 1 is a ground heat source system, and Case 2 is a water heat source system. Case 3, a hybrid system, reduced the capacity of the ground heat source and applied a water heat source as an auxiliary heat source, and Case 4 was composed of a system that applied a water heat source as an auxiliary heat source to the ground heat source system. As a result of the simulation, in case 3, energy consumption was reduced by up to 2.67% compared to ground sources for cooling. In Case 4, COP was improved by up to 10.02% compared to ground sources during cooling, and EST was calculated to be 2.42℃ lower. During heating, 0.83% was improved compared to the water heat source. At this time, the EST was calculated to be 2.25℃ higher than the water heat source.

Keywords

Acknowledgement

이 논문은 2021년도 정부(환경부 환경기술개발사업)의 재원으로, 한국환경산업기술원의 지원을 받아 수행된 연구입니다. (No. 2020003160021, 수열원에너지를 효과적으로 활용하기 위한 능동형 고효율 하이브리드 히트펌프 개발)

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