Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Changes in the External Heat Environment of Building Evaporative Cooling Systems in Response to Climate Change

기후변화 대응 건축물 기화냉각시스템 적용에 따른 외부 열환경 변화 연구

  • Yoon, Yong-Han (Department of Green Technology Convergence, Konkuk University) ;
  • Kwon, Ki-Uk (Glocal Industry-Academic Cooperation Foundation, Konkuk University)
  • 윤용한 (건국대학교 녹색기술융합학과) ;
  • 권기욱 (건국대학교 글로컬산학협력단)
  • Received : 2018.10.25
  • Accepted : 2018.11.06
  • Published : 2018.12.31
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Abstract

The purpose of this study was to investigate changes in the external thermal environment, following the application of evaporative cooling systems in buildings, in response to climate change. In order to verify changes in the external thermal environment, a T-test was performed on the microclimate, Thermal Comfort Index (TCI), and building surface temperature. Differences in microclimate, following the application of the evaporative cooling system in the building, were significant in terms of temperature and relative humidity. In particular, temperature decreased by more than 7% when the evaporative cooling system was applied. According to the results of the Thermal Comfort Index analysis, the Wet-Bulb Globe Temperature (WBGT) was below the limit of outdoor activities, indicating that outdoor activities were possible. The Universal Thermal Climate Index (UTCI) values were within the very strong heat stress range when the evaporative cooling system was not applied, When the system was applied, the UTCI values were within the strong heat stress range, indicating that they were lowered by one level. The building surface temperature decreased by ~10% or more when the evaporative cooling system was applied, compared to when it was not applied. Finally, the outside surface temperature of the building decreased by ~12% or more when the system was applied, compared to when it was not applied. We conclude that the energy saving effect of the building was significant.

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References

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