Korean Journal of Air-Conditioning and Refrigeration Engineering (설비공학논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Nocturnal Radiant Cooling Experiment by a Plate Viewing the Sky

야간 하늘에 노출된 평판의 복사냉각 실험

  • Byun Ki-Hong (Department of Mechanical Engineering, Dongguk University)
  • 변기홍 (동국대학교 기계공학과)
  • Published : 2005.06.01
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Abstract

The purpose of this experiment is to study the radiant cooling effects by a plate directly viewing the nighttime sky. The measurements are performed on a rooftop of the Engineering building at the Dongguk University in Seoul during the month of August in 2004. The radiant cooling effects are compared using three different types of plate sufaces, namely, galvanized iron, black painted, and aluminum film coated galvanized iron plate. Among these plates, the black Painted surface showed the lowest temperature that is lower than the ambient temperature. The maximum radiant cooling temperature difference, which is ambient temperature minus plate temperature, observed is about 5 K.

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References

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