Review on sustainable thermal energy storage technologies, Part I: heat storage materials and techniques

Salt hydrates as latent heat storage materials:Thermophysical properties and costs

Recent literatures in the field of cold thermal energy storage (CTES) are reviewed. First, the concept of the CTES is explained. Examples of load leveling of electrical energy in various countries are presented. Various types of the CTES are defined and compared as for their merits and demerits. The compared systems are a cold water storage vs. an ice-making storage, a static ice-making storage vs. a dynamic ice-making storage, and direct ice-making vs. indirect ice-making. Approximately 140 papers are reviewed and divided into five categories: (1) performance of successful systems, (2) simulation and control, (3) cold water storage, (4) static ice-making storage, and (5) dynamic ice-making storage. Finally, suggestions for future research are provided.

Recent advances in research on cold thermal energy storage

A cooling device boiling and condensing refrigerant includes a refrigerant container, a header tank, and tubes between the refrigerant container and the header tank. In the cooling device, each of the refrigerant container and the header tank has a stack structure constructed by stacking plural plates. Each plate is a press member formed by punching a metal plate using a press die. Accordingly, each capacity of the refrigerant container and the header tank can be readily changed in accordance with a thermal load, and the plates having the same shape can be used in common for both the refrigerant container and the header tank.

Cooling device boiling and condensing refrigerant

Some fatty acids as phase-change thermal energy storage materials

Heat transferential study on a heat storage container with phase change material

A heat transfer device comprising a liquid having a low boiling point and a non-condensable gas, said liquid and said gas being charged in a vessel, said vessel being separated into a heating section and a cooling section by means of an adiabatic member to cause said liquid to boil at temperatures above a desired temperature. In the heat transfer device, a great amount of heat is transferred at temperatures above a desired temperature by causing vapor bubbles to transfer from said heating section to said cooling section, said bubbles resulting from boiling of said liquid, while no heat transfer is effected between the aforesaid two sections at temperatures below the desired temperatures. The heat transfer device is suited for use in such apparatuses or machines which require a thermal valving function, especially for use in a refrigerator.

Heat transfer device

A heat storage device is disclosed in which grooves for supports supporting heat storage vessels, each vessel storing therein a heat storage material, are defined on the lower surface of each of the vessels so that the supports do not project from the bottom surface of each vessel.

Heat storage device

The present invention relates to a heat storage material for air conditioning or for waste heat recovery, principally containing magnesium chloride hexahydrate which is doped as a nucleator with synthetic zeolite, magnesium silicate, sodium metasilicate, sodium silicate, calcium silicate, alumina, silicic anhydride, silicon carbide, calcium carbonate, or/and calcium fluoride, whereby the heat storage material can be effectively used over a long period of time.

Heat storage material

Heat transfer study on a heat storage container with a phase change material. (Part 2. Heat transfer in the melting process in a cylindrical heat storage container)

Michio Yanadori

Papers

Heat transferential study on a heat storage container with phase change material

Heat transfer device

Heat storage device

Heat storage material

Heat transfer study on a heat storage container with a phase change material. (Part 2. Heat transfer in the melting process in a cylindrical heat storage container)