| 摘要 |
PURPOSE:To make it possible to reduce cost of a heat accumulation unit and change its capacity easily. CONSTITUTION:A recessed groove 16 is formed at least on one side of a block- shaped vessel 15 into which a feat accumulation material is encapsulated. A plurality of block-shaped vessels 15 are stacked one upon another, where a heat exchanger tube is fitted in each of the recessed grooves 16 and clamped. |
