Heat storage tank equipped with heat storage members and fabrication process for the same

Abstract

A heat storage tank in which heat storage and heat discharge operations are carried out through heat-exchange between heat storage agent and heat transfer medium to store electric power as latent heat, including plural heat storage members which are arranged in a fill-up state in the heat storage tank, each heat storage member holding therein the heat storage agent which alternately repeats latent heat storing and discharging operations through solid-liquid phase variation thereof, and comprising an elongated hollow container formed of material which can keep itself in a hollow shape. The heat storage members are arranged with their open end portions faced up and so as to be spaced from one another at such an interval that the heat transfer medium can flow through gaps between neighboring heat storage members, then the heat storage agent is supplied through the open ends into the heat storage members, and then the heat transfer medium is supplied into the heat storage tank. Each heat storage member is provided with a spacer at least one position on its peripheral surface, and the heat storage members are fixedly assembled and bundled through the spacers thereof. These bundles of the heat storage members are arranged in a fill-up state in the heat storage tank.

Dependencies are inferred from the claim text.