| 摘要 |
PROBLEM TO BE SOLVED: To provide a solar energy utilizing system reducing a head of a conveyance means. SOLUTION: This system is provided with a working fluid circulation circuit 9 connecting the conveyance means 1, a heat collector 2, an expander 3 and a liquefying means 4 in this order, and an upstream and a downstream on/off means 11, 12 opening and closing the circulation circuit 9 of an upstream and a downstream of the heat collector 2. The system opens the upstream and the downstream on/off means 11/12 and drives the conveyance means 1 to store working fluid in the heat collector. The system closes the upstream and the downstream on/off means 11/12, stops the conveyance means 1, and then opens the downstream on/off means 12 when working fluid is gasified by the heat collector 2 collecting solar heat. Consequently, the conveyance means 1 can convey working fluid if the same has delivery pressure with which passage resistance, height difference or the like of the circulation circuit 9 can be covered. The conveyance means 1 of a low head can be employed and its cost can be reduced. COPYRIGHT: (C)2008,JPO&INPIT
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