Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Experimental Study on the Temperature Reduction Effect of the Nano-mist Facility

나노미스트형 폭염저감 시설의 온도저감 효과 - 대구광역시 서구 북비산로를 대상으로 -

  • Kim, Jaekyoung (Interdisciplinary Program in Landscape Architecture, Seoul National University) ;
  • Kang, Junsuk (Department of Landscape Architecture and Rural Systems Engineering, Seoul National University) ;
  • Kim, Hoijin (UB E&C)
  • 김재경 (서울대학교 대학원 협동과정 조경학 전공) ;
  • 강준석 (서울대학교 조경.지역시스템공학부) ;
  • 김회진 (유비 E&C)
  • Received : 2021.01.15
  • Accepted : 2021.04.01
  • Published : 2021.04.30
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Abstract

This study analyzed the weather environment of the smart city to identify the temperature reduction effects of the heat reducing facilities. The methodology is divided into indoor and outdoor analyses. Indoor analyses were conducted for the evidence-based design of the facility. The size of nozzle is adjusted to derive the most efficient size for outdoor use. Three types of nozzles were used, 0.15 mm, 0.2 mm and 0.3 mm. The most efficient nozzle was selected as 0.15 mm. The outdoor test was measured for two days from August 3 to August 4, 2020, and the weather data were collected for the control and target sites on the first day. On the second day, the measurements were taken assuming that the temperature and humidity of two sites would be similar. Compared to the control group, the outdoor test site had a temperature reduction effect up to 7.4℃. When operating the heat-reducing facility, the rate of change in sensible temperature is lower than control site. This study concluded that mist facilities have a pre-cooling effect, which means reducing the temperature to a certain level. The results from this study data could be provided when establishing an adaptation policy for a heatwave.

Keywords

Acknowledgement

본 연구는 국토교통부/국토교통과학기술진흥원의 스마트시티 혁신성장동력 프로젝트 지원으로 수행되었음(과제번호 : 19NSPS-B154559-02).

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