| 摘要 |
PURPOSE:To prevent an excessive elevation of the room temperature due to the overheating of a roof plate and to make the effective use of solar heat even when an object to be heated is a place of large surface area such as an indoor pool by a method wherein a transparent flat plate is arranged above the roof plate having a bent section and air is circulated between the transparent flat plate and the roof plate. CONSTITUTION:A roof 5 is formed by the bent roof plate 1 made of a thin steel plate and the transparent flat plate 3 made of plastics or glass and covering the roof plate 1. At the back of the roof 5, a motor 6, a fan 7 and a heat exchanger 8 are arranged and the upper and the lower parts of a building 4 are thermally insulated by heat insulating layer 9. In the daytime in fine weather, the air in the clearance 11 is heated to an elevated temperature by the radiant heat of the sun and reaches the top of the roof, it is forced to turn downward to be cooled to a lower temperature by being deprived of its heat through a heat exchanger 8. Thus, it is possible to obtain a large amount of heat from the sun in a highly efficient manner while the air is circulated to be heated and cooled repeatedly. |
