| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat accumulation system which can accumulate hot heat at high density irrespective of a temperature of a heat source, and can take out cold heat at heat radiation while reducing a size of a physique.SOLUTION: A heat accumulation part 2 has a heat accumulation material accommodation part 21 which accommodates a heat accumulation material 210, and a heat medium accommodation part 22 which accommodates a liquid-phase heat medium. The heat accumulation material 210 has a small hole 211 in which the vapor of the heat medium flows, and the heat accumulation material 210 is changed into a solid first phase state when a temperature of the heat accumulation material 210 is not higher than a phase transition temperature, and also changed to a solid second phase state when the temperature of the heat accumulation material 210 exceeds the phase transition temperature. The heat accumulation material 210 accumulates or radiates heat by a phase change between the first phase state and the second phase state, and the heat accumulation part 2 can perform a cold heat discharge mode which discharges cold heat to a cooling medium by evaporating the heat medium by heat-exchanging the liquid-phase heat medium and the cooling medium at the heat medium accommodation part 22.SELECTED DRAWING: Figure 2 |
