| 摘要 |
PURPOSE:To selectively recover energy collected and converted by providing an energy feeding means having a heat absorptive function built up in a freely contacting or separating manner inan internal device between the internal device composed of a substance to be heated by sunshine and an external device. CONSTITUTION:A space 15 is formed between a transparent cylinder 12 and a cylinder 11 with the interposition of spacers 13 and 14 in such a way that the space can be evacuated, and a heat medium, e.g., water, etc., is charged in the space 15. Also, the solar energy collector is designed to enable to the sunshine to readily reach the cylinder 11 on the inside through the top wall of the cylinder 12. The cylinder 11 serves as a heat absorber, a heat intensifier, or a heat accumulator, and if necessary, an energy feeding means for recovering accumulated heat energy from the cylinder 11 is provided. For example, the means 17 has a structure such that a brake piece-like material 18 is attached reciprocally in the space 15 and fitted on or detached from the periphery of the cylinder 11. In short, when the material 18 is fitted on the periphery of the cylinder 11, heat energy is transferred to the material 18 by heat conductance. |
