오산시의 맑은날 하절기 등가 하늘온도 예측
Prediction of the Summer Effective Sky Temperatrure during the Clear Day on Osan City
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참고문헌
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초록
The purpose of this study is to predict the effective sky temperature on Osan City during the summer. The north latitude, east longitude of Osan City is 37°06' and 127°02'. The altitude from the sea level is 48m. Empirical relations of the effective sky temperature suggested by Duffie and Beckman1) are compared on clear days. For the effective sky temperature prediction, data measured by the Korea Meteorological Administration is used as an input to the Bliss6) model. Both Hottel and Krondratyev model are used to calculate the water vapor emissivity. The results using Hottel's model match well with the empirical relation proposed by Bliss. The results show maximum, minimum, and average values depending on water vapor emissivity model. The maximum deviation is about 10 K and is due to total emissivity model.
Abstract
The purpose of this study is to predict the effective sky temperature on Osan City during the summer. The north latitude, east longitude of Osan City is 37°06' and 127°02'. The altitude from the sea level is 48m. Empirical relations of the effective sky temperature suggested by Duffie and Beckman1) are compared on clear days. For the effective sky temperature prediction, data measured by the Korea Meteorological Administration is used as an input to the Bliss6) model. Both Hottel and Krondratyev model are used to calculate the water vapor emissivity. The results using Hottel's model match well with the empirical relation proposed by Bliss. The results show maximum, minimum, and average values depending on water vapor emissivity model. The maximum deviation is about 10 K and is due to total emissivity model.
참고문헌 (9)
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- 변기홍, "야간 하늘에 노출된 평판의 복사냉각 실험", 설비공학 논문집, 17(6), pp.605~610 (2005), 대한설비공학회
- 변기홍, "주간 하늘에 노출된 평판에 의한 복사냉각 실험", 한국태양에너지학회 논문집, 27(4), pp.11~18 (2007), 한국태양에너지학회
- A. Chebihi, "Radiation Cooling of an Enclosure", Energy Conversion and Management, 47, pp.229~252 (2006)
- Swinbank, W. C, "Long-Wave Radiation From Clear Skies," Quarterly", J. of the Royal Meteorological Society, 89, pp.1963~ (1963)
- Bliss, R. W, "Atmospheric Radiation Near the Surface of the Ground: A Summary for Engineers", Solar Energy, 5(3), pp.103~120 (1961)
- Atwater, M. A, "Computation of IR Sky Temperature and Comparison with Surface Temperature", Solar Energy, 21, pp.211~216 (1978)
- 고층기상월보, "8월 및 9월", 기상청, ~ (2004)
- Kuehn, T.H, "Thermal Environmental Engineering" (1998), Prentice-Hall