| 摘要 |
PURPOSE:To enable to efficiently dissolve heat storage material during heating by a structure wherein heating is performed by providing heating sources, one of which covers the bottom surface and the other of which is vertical to the bottom surface, at the lower part of the heat storage device in a latent heat type heat accumulator, which stores and releases heat by means of phase change. CONSTITUTION:The heat storage device A consists of the heat accumulator 1, the heat storage material 2, a heat exchanger 13 for heating and a radiator 4 for taking-out heat. The heat exchanger 131 for heating, which covers the whole bottom surface 6, and the heat exchanger 132 for heating, which is vertical to the bottom surface 6, integrally constitute the heat exchanger 13 for heating. During the initial stage of dissolution of the heat storage material, the heat storage material 12 is dissolved at the central portion of the heat accumulator 1 by means of the heat exchanger 132 for heating on a form so as to pierce the heat accumulator 1, resulting in leaving undissolved heat storage material 22 on the upper wall surface in the heat accumulator 1. The undissolved heat storage material 22 is dissolved by obtaining heat from dissolved heat storage material 12 lying in the bottom and the central portions of the heat accumulator 1 and developing the convection of the dissolved heat storage material throughout the whole portion of the heat accumulator 1. |
