| 摘要 |
The present invention relates to a method for producing hot air by utilizing solar light through the use of an inner spatial layer of a multilayer light collecting plate (33) constituting multiple layers. The multilayer light collecting plate has front and rear layers made of a transparent material or of an opaque material for receiving solar light and a thermal conductive material and a non-conductive material, and a spatial layer having a predetermined thickness and which is interposed between the front and rear layers. Two of the four sides of the plate are closed, and air is circulated beneath the plate to produce hot air using solar light.
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