Journal of the Korean Society of Environmental Restoration Technology (한국환경복원기술학회지)

The Korea Society of Environmental Restoration Technology (한국환경복원기술학회)
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The effect of Temperature Reduction of Green roof for building energy-saving using Rainwater Storage Tank

건물 에너지 절약을 위한 저류 옥상 녹화의 온도 저감 효과

  • Yun, Seok-hwan (Interdisciplinary program in Landscape Architecture, Seoul National University) ;
  • Kim, Eun-sub (Interdisciplinary program in Landscape Architecture, Seoul National University) ;
  • Piao, Zheng-gang (Dept. of Landscape Architecture and Rural System Engineering, Seoul National University) ;
  • Kim, Sang-hyuck (Interdisciplinary program in Landscape Architecture, Seoul National University) ;
  • Kim, Na-yeon (Dept. of Landscape Architecture and Rural System Engineering, Seoul National University) ;
  • Hwang, Hye-mee (Dept. of Landscape Architecture and Rural System Engineering, Seoul National University) ;
  • Je, Sang-woo (Korea institute of green infrastructure) ;
  • Kang, Han-min (Korea institute of green infrastructure) ;
  • Ham, Eun-kyung (Korea institute of green infrastructure) ;
  • Lee, Dong-kun (Dept. of Landscape Architecture and Rural System Engineering, Seoul National University)
  • 윤석환 (서울대학교 협동과정 조경학) ;
  • 김은섭 (서울대학교 협동과정 조경학) ;
  • 박정강 (서울대학교 생태조경.지역시스템공학부) ;
  • 김상혁 (서울대학교 협동과정 조경학) ;
  • 김나연 (서울대학교 생태조경.지역시스템공학부) ;
  • 황혜미 (서울대학교 생태조경.지역시스템공학부) ;
  • 제상우 (한국그린인프라 연구소) ;
  • 강한민 (한국그린인프라 연구소) ;
  • 함은경 (한국그린인프라 연구소) ;
  • 이동근 (서울대학교 조경지역시스템공학부)
  • Received : 2023.01.17
  • Accepted : 2023.08.27
  • Published : 2023.08.30
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Abstract

Despite countries' efforts to reduce carbon emissions, carbon emissions have increased in recent decades along with energy use, of which building energy uses account for a large proportion. Energy savings are essential as a strategy to reduce carbon emissions in existing buildings. The field experiment on the roof of a building located in Seoul was designed to measure the temperature reduction effect of green roof with rainwater storage tank to reduce cooling energy consumption in summer. The results showed that the mean mean surface temperature under the green roof was 14.77 degrees lower than that of the non-green roof from 13:00 P.M. to 15:00 P.M., which would have a great effect on reducing cooling energy. From 01:00 A.M. to 03:00 A.M., the effect was 3.36 degrees, showing that tropical nights could be improved. The temperature reduction effect due to the rainwater storage system increased by 1.45 degrees during the day and decreased by 0.63 degrees at night. The storage system can be strategically utilized to reduce carbon emissions during the week when cooling energy increases significantly.

Keywords

Acknowledgement

본 결과물은 환경부의 재원을 지원받아 한국환경산업기술원 "신기후체제 대응 환경기술개발사업"의 연구개발을 통해 창출되었습니다.(2022003570004)

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