하절기 실험을 통한 건물녹화용 피복재료의 복사수지 해석

Abstract

This study carried out to understand the thermal characteristics of various surface material which compose the city through the observation in the summer. To examine passive cooling effect of planting of building, it is arranged four different materials that is natural grass, grass block, concrete slab and artificial grass. The results of this study are as follows; ① Natural grass and grass block show the lower surface temperature because of the structures of leaf can do more thermal dissipation effectively. ② There is little surface temperature between artificial grass and concrete. But there is little high surface temperature difference between natural grass and concrete because of latent heat effect. ③ The concrete can play a role of the tropical nights phenomenon as high heat capacity of concrete compare with other materials. ④ It is nearly same color in artificial grass and natural grass but there is large difference between natural grass and artificial grass at albedo. There is different albedo in near infrared ray range. ⑤ A short wave radiation gives more effect at the globe temperature than long wave radiation. ⑥ The artificial turf protected the slab surface temperature increase in spite of thin and low albedo materials.