대한기계학회:학술대회논문집 (Proceedings of the KSME Conference)
- 대한기계학회 2004년도 추계학술대회
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- Pages.1300-1305
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- 2004
야간 하늘에 노출된 평판의 복사냉각효과
Nocturnal Radiant Cooling by a Plate Viewing the Sky
초록
The purpose of this experiment is to study the radiant cooling effects by a plate directly viewing the nighttime sky. The measurements are performed at 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 surfaces such as galvanized Iron, black painted, and aluminum film coated galvanized iron plate. Among these plates, the black painted surface show the lowest temperature that is lower than its ambient temperature. The maximum radiant cooling temperature difference, that is ambient temperature minus plate temperature, observed is about 5K..