| 摘要 |
PURPOSE:To contrive to reduce the size of a heat accumulator, and enhance heat-exchanging efficiency and responsibility, by a method wherein a substance having a specific gravity higher than that of a molten liquid of a heat-accumulating material at the temperature in proximity to the melting point thereof is sealed into a container together with the heat-accumulating material, and a heat exchanger and a cooler for the substance are placed in the inside part of the substance and the material, in a heat accumulator for solar heat or the like used for supplying hot water or the like. CONSTITUTION:A latent heat type heat-accumulating material 2 and a substance 6 having the specific gravity higher than that of the molten liquid of the material 2 at the temperature in proximity to the melting point thereof, for example flon R-113, are sealed into the container 1, and the heat exchanger 3 a part of which constitutes the cooler 7 is placed. When a low-temperature heat-transmitting medium is passed into the heat exchanger 3 through the cooler 7, a vapor of the substance 6 is condensed in a space A, the condensed liquid drops onto the material 2, sinks in the material 2 because of its higher specific gravity, and is re-evaporated. Therefore, the material 2 is stirred, and solidification thereof proceeds smoothly without any sticking on heat-transmitting surfaces and without any intervention of the substance 6. Accordingly, accumulation of heat is conducted smoothly through the substance 6 which has a high thermal conductivity, and heat-accumulating and heat-releasing efficiencies are enhanced. |
