| 摘要 |
<p>A heat accumulator (10) comprises: piping (1); a powdered/granular body in which the piping is buried and the principal component of which is graphite (2); and a vessel (3) that houses the piping (1) and the powdered/granular body. As a result, the powdered/granular body that has graphite as a principal component accumulates heat, and the graphite is thereby inherently able to transfer heat without relying on convection, and mechanisms of heat accumulation and heat transfer are unchanged from low temperatures to high temperatures. The present invention can therefore accumulate heat independent of temperature. Further, because the powdered/granular body that has graphite as a principal component accumulates heat, and because the material thereof is highly heat resistant and does not easily deteriorate, the present invention can be used even at high temperatures and, in addition, can be used over long periods of time.</p> |
