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Composite phase-change energy storage material and preparation method thereof

An energy storage material and composite phase change technology, applied in the direction of heat exchange materials, chemical instruments and methods, etc., can solve the problems of reducing effective components, affecting energy storage effect, separating salt and water, etc., to achieve enhanced fusion, good The effect of application value and low cost

Inactive Publication Date: 2017-06-27
石家庄源耀热能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The composite phase change energy storage material prepared by the present invention mainly solves the problem that the inorganic salt phase change material has a large supercooling degree in the past. During the phase change process, the melting of the inorganic salt cannot be combined with the crystal water, resulting in the separation of salt and water, so that the effective components are gradually reduced. , thus greatly affecting the technical issues of energy storage effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A composite phase change energy storage material, comprising the following components in mass percent:

[0034] Sodium acetate trihydrate 26%,

[0035] Sodium Sulfate Decahydrate 30%,

[0036] Sodium Thiosulfate Pentahydrate 30%,

[0037] Barium Carbonate 2%,

[0038] Sodium hexametaphosphate 2%,

[0039] Agar powder 2%,

[0040] Simethicone 2%,

[0041] Fatty acid methyl esters 3%,

[0042] White carbon black (300 mesh) 3%.

[0043] The preparation method is as follows: (1) Weigh each component according to the proportion, add agar powder into water, fully dissolve to obtain modifier agar powder solution for later use, wherein the mass ratio of agar powder to water is 1:4;

[0044] (2) Fully mix sodium acetate trihydrate, sodium thiosulfate pentahydrate, and sodium sulfate decahydrate in proportion, heat to 50°C, after the mixture melts, stir to make the mixture uniform and form a eutectic solution, then add in proportion Nucleating agent barium carbonate, sodi...

Embodiment 2

[0049] A composite phase change energy storage material, comprising the following components in mass percent:

[0050] Sodium acetate trihydrate 48%,

[0051] Sodium Sulfate Decahydrate 25%,

[0052] Sodium Thiosulfate Pentahydrate 15%,

[0053] Barium Carbonate 2%,

[0054] Sodium hexametaphosphate 1%,

[0055] Agar powder 2%,

[0056] Simethicone 1%,

[0057] Fatty acid methyl esters 3%,

[0058] White carbon black (300 mesh) 3%.

[0059] Its preparation method is as follows: (1) Weigh each component in proportion, add agar powder into water, fully dissolve, and obtain modifier agar powder solution for later use, wherein the mass ratio of agar powder to water is 1:6;

[0060] (2) Fully mix sodium acetate trihydrate, sodium thiosulfate pentahydrate, and sodium sulfate decahydrate in proportion, heat to 80°C, after the mixture melts, stir to make the mixture uniform and form a eutectic solution, then add in proportion Nucleating agent barium carbonate, sodium hexametap...

Embodiment 3

[0065] A composite phase change energy storage material, comprising the following components in mass percent:

[0066] Sodium acetate trihydrate 30%,

[0067] Sodium Sulfate Decahydrate 30%,

[0068] Sodium Thiosulfate Pentahydrate 30%,

[0069] Barium Carbonate 1%,

[0070] Sodium hexametaphosphate 2%,

[0071] Agar powder 1%,

[0072] Simethicone 2%,

[0073] Fatty acid methyl esters 2%,

[0074] White carbon black (300 mesh) 2%.

[0075] The preparation method is as follows: (1) Weigh each component according to the proportion, add agar powder into water, fully dissolve to obtain modifier agar powder solution for later use, wherein the mass ratio of agar powder to water is 1:5;

[0076] (2) Fully mix sodium acetate trihydrate, sodium thiosulfate pentahydrate, and sodium sulfate decahydrate in proportion, heat to 60°C, after the mixture melts, stir to make the mixture uniform and form a eutectic solution, then add in proportion Nucleating agent barium carbonate, sodium...

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Abstract

The invention belongs to the technical field of phase-change energy storage materials and particularly relates to a composite phase-change energy storage material and a preparation method thereof. The composite phase-change energy storage material comprises energy storage materials, stabilizers, modifiers, nucleating agents, a heat conduction enhancer and a carrier. The composite phase-change energy storage material prepared by the preparation method has the advantages of high stability, high heat storage performance, high latent heat energy, high heat conduction coefficient, high heat storage density and longer service life, is used between 10 DEG C and 120 DEG C and can avoid phase separation after long-term use.

Description

technical field [0001] The invention belongs to the technical field of phase change energy storage materials, and in particular relates to a composite phase change energy storage material and a preparation method. Background technique [0002] Using the phase change of chemical materials to store energy and realize the conversion and utilization of stored energy can alleviate the demand for more energy in terms of supply and demand and improve the efficiency of energy use. In recent years, with the development of social economy, the research on energy storage has attracted more and more attention of researchers, among which the storage and application of heat are closely related to production enterprises and people's livelihood. Energy storage phase change technology is the main technology to rationally and effectively utilize energy, optimize utilization and improve energy efficiency. [0003] Inorganic phase change energy storage materials have the advantages of fixed mel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/06
Inventor 刘书志
Owner 石家庄源耀热能科技有限公司
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