| 摘要 |
PURPOSE:To collect and accumulate heat efficiently by a method wherein a heat accumulating tank, into which a latent heat type heat accumulating material having a melting point lower than the temperature of a room and a heat transfer medium which is changed from liquid to gas upon absorbing heat and from gas into liquid upon releasing heat are sealed, is provided with a heat pump circuit and a heat collecting circuit. CONSTITUTION:The solar heat energy, collected by a heat collector in the heat collecting circuit A, is introduced into the latent heat type heat accumulating tank 12 from a radiator 5 and is stored in the latent heat type heat accumulating material 10 of low melting point in the form of melting latent heat while the inside of the tank 12 is kept at the melting point of the heat accumulating material 10, therefore, heat is collected in a low temperature and the heat accumulating efficiency may be increased remarkably. Thus, the tank 12 is filled with the molten liquid of the heat accumulating material 10 and the satulated vapor of flon 11 consisting of gas and liquid. The latent heat and the melting latent heat of the heat accumulating material 10 are pumped by the heat pump circuit having an evaporator 13 into the space 12A of the tank 12 and is pumped by the heat pump circuit having a condenser 14 into the hot-water reserving and heat accumulating tank 4 while the heats are supplied to water 9. |
