| 摘要 |
PURPOSE:To make it possible to receive heat with a high efficiency by a compact device by flowing a fluid in a filmy manner within a flow passage formed between a planar surface and at least a plate-like material to receive heat, and controlling the supply of the fluid to the above flow passage according to the temperature at the heat receiving part and the like. CONSTITUTION:When the titled device is applied to a solar heat water heater, two planer members (heat receiving bodies) 1 and 2 are disposed within a support frame installed on the upper surface of a roof or the like in an inclined manner so as to form a fluid flow path 8. A fluid distributing part 7 provided with slits and holes is disposed at the side and part of each of the plate-like members. The fluid is supplied to the fluid distributing part 7 through an automatic valve 56, and a fluid such as water or the like is caused to flow down in a filmy state with respect to the above fluid flow path 8. High temperature fluid which receives solar heat and is heated is then discharged out of the fluid discharge part 11. The above automatic valve 56 is opened or closed in accordance with the output of a temperature detector 55 attached to the heat receiving member 2. |
