Formula of chemical heat storage material for heat transfer

Abstract

The invention aims to provide a formula of a chemical heat storage material for heat transfer; the chemical heat storage material can achieve high-temperature, large-scale, low-cost and high-efficiency heat storage, and is suitable for heat storage and heat transfer at the temperature of 10-1500 DEG C. The chemical heat storage material is composed of three components at least comprising a group of chemical substances which can undergo a reversible reaction, a group of metal particles composed of metals or metal oxides, and a group of microporous particles composed of materials containing micropores, and the three components are mixed to form the chemical heat storage material. The metal particles are added in the chemical substances so as to achieve effective heat transfer, and the problem of heat transfer is solved; at the same time, the porous particles are added, so as to achieve a reaction among the chemical substances, achieve effective performing of the chemical reaction and make the reaction be an effective contact reaction; therefore, the chemical heat storage has actual industrial application values.

Description

technical field [0001] The invention relates to thermal energy utilization, in particular to a material and a formula for realizing thermal energy storage through reversible chemical reactions. Background technique [0002] The heat accumulator is a device for storing thermal energy, and the existing heat accumulators are steam type and liquid heat accumulators; [0003] In the field of industrial energy conservation, waste heat is recovered and stored, usually using phase change technology for heat storage, and in the low temperature field using ice storage technology for heat storage; [0004] In the field of solar energy, molten salt is used to store heat. Although molten salt can achieve high temperature storage, it needs heat energy to heat it because it needs to be transformed from solid to liquid. At the same time, there are problems with the toxicity, economy, and safety of molten salt. , so the use of molten salt heat storage is limited. [0005] In the field of s...

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Problems solved by technology

[0007] The discharge of industrial kilns, steel slag, etc., and the tailings formed by various mine developments have accumulated as above, and there are hidden dangers. How to effectively and economically utilize them will be a very problem that needs to be solved.

[0008] The use of reversible chemical reactions for heat storage has become a feasible technology, but it has not been used in industrial production. The main reason is the contradiction between the composition of chemical substances and heat transfer. Many reversible reactions have poor heat transfer performance and cannot be solved. The contradiction between heat transfer and chemical reaction makes it impossible to apply in practice although the principle is possible

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