| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat source performing heat exchange for the evaporation/condensation of a refrigerant gas with internal energy. SOLUTION: Nitrogen gas is filled in a vacuum chamber, an artificial solar light is lit in the chamber, and a temperature in the chamber is increased to 100 to 120°C to perform evaporation by a heat exchanger. The nitrogen gas is filled in the other vacuum chamber, the temperature in the chamber is kept at -30°C to perform condensation by the heat exchanger so as to stabilize a temperature difference. COPYRIGHT: (C)2005,JPO&NCIPI
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