| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a heat storage unit capable of efficiently storing heat in a short time. <P>SOLUTION: This heat storage unit comprises a heat storage container 1a storing sodium acetate 3 which stores heat by a solid-liquid state change and oil 2 with specific gravity smaller than that of the sodium acetate 3, which is heat-exchanged with the sodium acetate 3 by direct contacting therewith, but never mixed therewith. This unit further comprises a feed pipe 4 supplying the oil 2 into the heat storage container 1a at least through the sodium acetate 3 stored in the heat storage container 1a, and a discharge pipe 6 discharging the oil 2 stored in the heat storage container 1a out of the heat storage container 1a. The feed pipe 4 has a plurality of discharge ports discharging the supplied oil 2a across the boundary face between the oil 2 and the sodium acetate 3 stored in the heat storage container 1a, and at least one of the discharge ports 6 is located within the oil 2. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
