| 摘要 |
PURPOSE:To prevent the interfacial temperature from decreasing, and to improve a heat transferring characteristic, by mixing metallic powder or metallic short fiber having thermal conductivity in a heat-accumulating material, in a solar heat or the like heat accumulating apparatus for supplying hot-water or for heating rooms utilizing a latent heat accumulating material and a phase transition heat-transferring medium. CONSTITUTION:Metallic powder or metallic short fiber 6, having heat conductivity, that is a phase transition heat-transferring medium 3 such as Al, of which specific gravity is larger than that of a latent heat accumulating material 2 or of heat accumulating material 2 in the vicinity of a phase transition point, is filled in a heat accumulating part B. At the time when the heat is accumulated, the heat from outside is first absorbed by the metallic powder interpositioned in the solid phase 100 of a heat accumulating material, and heats the heat-transferring medium 3. The heat-transferring medium 3 is repeatedly evaporated and is condensed, passing through the interpositioned space in the solid phase 100, and melts a heat-accumulating material 100 down to accumulate heat in it. At the time when the heat is radiated, the condensed liquid of heat-transferring medium 3 is deposited on the metallic powder 6 and is settled down. Accordingly, the condensed liquid 3 in the vicinity of an interface C is prevented from remaining, so that the heat dissipating speed can be increased. In such a manner, the interfacial temperature is prevented from lowering, and a heat transferring characteristic can be improved in the titled apparatus. |
