Heat storage system and installation method of latent heat storage material thereof

Abstract

There is provided a heat storage system including: an indoor space; a heat storage space which is adjacent to the indoor space and in which a latent heat storage material having a melting point or a freezing point in a range of 5° C. or higher and 30° C. or lower is installed; and a natural ventilator controlling introduction and blocking of outside air to the heat storage space, in which a heat resistance between the heat storage space and the outside air is set to be greater than a heat resistance between the heat storage space and the indoor space.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This application is a continuation of PCT application No. PCT / JP2018 / 012612, which was filed on Mar. 27, 2018 based on Japanese patent application 2017-076791 filed on Apr. 7, 2017, whose contents are incorporated herein by reference. Also, all the references cited herein are incorporated as a whole.BACKGROUND OF THE INVENTION1. Technical Field[0002]The present invention relates to a heat storage system and an installation method of a latent heat storage material thereof.2. Background Art[0003]In the related art, by focusing on a daily temperature range of an outside temperature, a system that stores cold heat or warm heat, which is necessary for daily use, under a floor or the like for approximately half a day and uses the heat for air conditioning, in order to use an air conditioning effect using nighttime cold heat or midnight power before noon or use power deviated from peak power demand is proposed (see Patent Literatures JP-A-2000-2...

AI Technical Summary

Benefits of technology

The invention relates to a heat storage system that can perform both heating and cooling. The technical effects of this invention include reducing the weight of the latent heat storage material used for storing heat over the season, and an installation method for the latent heat storage material. This allows for a lightweight heat storage system that can be used for both heating and cooling purposes.

Problems solved by technology

For example, in a case of cold heat storage, it is conceivable to use ice having a melting point and a freezing point of 0° C. or use sodium acetate trihydrate having a melting point and a freezing point of 58° C. However, in the case of using these latent heat storage materials, since the melting point and the freezing point are low or high, leakage of stored cold or warm heat becomes large.

As a result, there is a possibility to lead to an increase in a weight.

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