대한건축학회논문집:구조계 (Journal of the Architectural Institute of Korea Structure & Construction)

대한건축학회 (Architectural Institute of Korea)
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일반공조 시스템 대비 축열조와 연동된 수직밀폐형 지열히트펌프의 냉난방 에너지 성능 및 경제성 분석

Cooling and Heating Energy Performance and Cost Analysis of Vertical Closed-loop Geothermal Heat Pump Coupled with Heat Storage Tank Compared to Conventional HVAC System

  • 김민지 (한밭대학교 대학원 건축공학과) ;
  • 도성록 (한밭대학교 설비공학과) ;
  • 최종민 (한밭대학교 기계공학과) ;
  • 이광호 (한밭대학교 건축공학과)
  • 투고 : 2018.09.07
  • 심사 : 2018.11.08
  • 발행 : 2018.11.30
⟨ 이전 논문 다음 논문 ⟩

초록

Among various types of geothermal heat pump systems, Vertical Closed-Loop Geothermal Heat Pump (VGSHP) has received increasing attention due to a variety of advantages such as the potential to be installed in a relatively small space and improved energy efficiency. In this research, the performance of VGSHP system coupled with heat storage tank was evaluated, by analyzing operational behavior of heat storage tank, the variations of heat pump energy performance due to the connection with heat storage tank, part load ratios characteristics of heat pump and the corresponding energy cost, compared to chiller and boiler based conventional system. The results of this study showed that the VGSHP system coupled with heat storage tank showed an energy saving effect of about 18% for cooling and about 73% for heating, and annual heating/cooling energy cost reduction of 43,000,000 KRW ($ 39,000), compared to the conventional air conditioning system. In addition, after considering both energy cost and initial investment cost including equipment, installation and auxiliary device expenses, payback period of approximately 11.8 years was required.

키워드

과제정보

연구 과제 주관 기관 : 한국에너지기술평가원(KETEP)

참고문헌

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