HOT HEAT STORAGE APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide a hot heat storage apparatus, capable of recovering exhaust heat or effectively using late-night electric power using a specified heat storage material and a specified heating medium capable of giving and receiving an enthalpy change of the heat storage material. SOLUTION: This hot heat storage apparatus is equipped with a latent heat storage body storing high-density polyethylene or the like as a latent heat storage material in a vessel, a heat storage tank storing propylene glycol or the like as a heating medium, a heating means for heating the heating medium in the heat storage tank and a heat recovery heat exchanger for heat recovery from the heating medium. The quantity of heat given from the heating means is stored and recovered by a heat absorbing means.