Cooling of a dwelling by nocturnal radiation

[摘要] Atmospheric transparency in the infrared, responsible for night cooling, is exploited to obtain a cooling effect. Radiative cooling to the night sky is based on the principle of infrared radiation heat loss from a surface to a body at a lower temperature. The use of the emissivity equation allowed us to evaluate its variation as a function of wavelength and temperature. A comparison of the temperature variation was made between granite and the materials most often used in the manufacture of radiant panels of hybrid systems. The results show that the temperature of Tedlar-based plates or plastics considerably decreases, and, therefore are rather promising.

[发布机构] Laboratory of Engineering and Materials (LIMAT), Ben m'Sik Faculty of Sciences, Hassan II University of Casablanca, B.P. 7955 Sidi Othmane, Casablanca, Morocco^1;University Polytechnic School of Marseille, Department of Energy Mechanics, University of Provence, France^2

[学科分类] 土木及结构工程学

[关键词] Atmospheric transparency;Cooling effects;Lower temperatures;Nocturnal radiations;Radiant panel;Radiation heat loss;Radiative cooling;Temperature variation