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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Evaluating the Feasibility of a Ground Source Heat pump System for an Elderly Care Center through Simulation Approach

시뮬레이션을 통한 노인 요양 시설의 지열 히트펌프 시스템 적용 가능성 평가

  • Byonghu Sohn (Department of Building Energy Research, KICT) ;
  • Young-Sun Kim (Department of Building Energy Research, KICT) ;
  • Seung-Eon Lee (Department of Building Energy Research, KICT)
  • 손병후 (한국건설기술연구원 건축에너지연구소) ;
  • 김영선 (한국건설기술연구원 건축에너지연구소) ;
  • 이승언 (한국건설기술연구원 건축에너지연구소)
  • Received : 2023.11.07
  • Accepted : 2023.11.29
  • Published : 2023.12.01
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Abstract

This study analyzes the energy performance of a elderly care center building and the applicability of a ground source heat pump (GSHP) system through simulation approach. For this purpose, a building information modeling (BIM) program and an energy performance calculation program were used. The impact of the mechanical ventilation system on the energy requirements of the heating and cooling system and the indoor environment was also analyzed, focusing on the change in indoor carbon dioxide (CO2) concentration, which is a representative indicator of the indoor environment (air quality). The simulation results showed that the target building exceeds Level 7 in terms of simulated primary energy consumption or actual energy consumption. In addition, it was analyzed that the target building could not maintain the indoor CO2 concentration below the standard concentration by natural ventilation through window opening alone. Combining the GSHP system with the mechanical ventilation system (Case B and Case C) can further reduce the overall energy consumption by reducing the amount of outdoor air introduced by opening windows. The cost savings compared to the baseline case are estimated to be 67.3% for Case A, 63.7% for Case B, 65.5% for Case C, and 42.5% for Case D. It is necessary to analyze the impact of various renewable energy technologies and passive ones on the energy performance and indoor environment of elderly care centers.

Keywords

Acknowledgement

본 연구는 과학기술정보통신부의 한국건설기술연구원 연구운영비지원(주요사업) 사업으로 수행되었습니다(과제번호 20230134-001, 공공데이터 기반 건물에너지 광역 검진 기술 개발).

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