한국지열·수열에너지학회논문집 (Journal of the Korean Society for Geothermal and Hydrothermal Energy)

  • 제21권4호
  • /
  • Pages.26-39
  • /
  • 2025
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  • 2799-4783(pISSN)
  • /
  • 2799-4805(eISSN)
한국지열·수열에너지학회 (Korean Society for Geothermal and Hydrothermal Energy)
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소규모 보건진료소 건물의 그린리모델링 기술 적용에 따른 에너지와 비용 절감 효과 분석

Analysis of Energy and Operating Cost Savings from Applying Green Remodeling Technologies to Small Community Public Health Clinic

  • 손병후 (한국건설기술연구원 건축에너지연구본부) ;
  • 김혜기 (한국건설기술연구원 건축에너지연구본부)
  • Byonghu Sohn (Department of Building Energy Research, KICT) ;
  • Hye-Gi Kim (Department of Building Energy Research, KICT)
  • 투고 : 2025.11.10
  • 심사 : 2025.11.27
  • 발행 : 2025.12.01
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초록

Small community public health clinics account for a meaningful and persistent share of building-sector energy use, yet retrofit guidance tailored to these facilities remains limited. This study quantified energy and operating-cost impacts of Green Remodeling (GR) packages for a 178.4 m2 single-story clinic in rural Icheon, Korea. We developed a DesignBuilder (v7.3) model and simulated annual and monthly end-uses in EnergyPlus (v9.4) under a baseline and five GR cases (Case-A-Case-E) that combined envelope and airtightness upgrades, window and door replacements, HVAC and lighting efficiency measures, and energy recovery ventilator (ERV) integration. The baseline required 36.1 MWh/year (site EUI 215.6 kWh/m2·year; source EUI 592.9 kWh/m2·year) and was dominated by off-peak electricity for space heating and domestic hot water (DHW). Case-A (insulation reinforcement for walls and roof) reduced electricity use by about 10%. Case-B, adding window and door upgrades and airtightness, lowered total electricity to 17.14 MWh/year evidencing cumulative envelope and airtightness effects. Upgrading cooling COP and expanding LED lighting (Case-C) achieved a 53.2% reduction versus the baseline. Case-E (ERV addition) yielded the lowest site EUI, whereas Case-D (kerosene boiler) produced the largest source-energy reduction, reflecting fuel conversion factors. Operating cost analysis indicated that Case-E delivered the greatest savings in operation cost. These findings support envelope-first GR with ERV for small-scale public health clinics; planned post-retrofit measurement and verification (M&V) will further validate savings and refine economic guidance.

키워드

과제정보

본 연구는 과학기술정보통신부의 한국건설기술연구원 연구운영지원비 사업으로 수행되었습니다(과제 번호 20250291-001, Beyond XAI: 건물에너지 정책 및 기술의 효과 평가를 위한 인과추론 적용 연구).

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