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Moderate-temperature phase-change energy-storage material and production method thereof

A phase-change energy storage material and medium-temperature technology, which is applied in the direction of heat exchange materials, chemical instruments and methods, etc., can solve problems in the laboratory stage, the degree of supercooling, and the cycle stability of phase stratification. There are no problems such as industrialization technology to achieve good energy storage effect, easy operation and long service life

Inactive Publication Date: 2016-10-05
杨晓林
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are many mature phase change material products abroad, but in China, due to problems such as supercooling, phase stratification, and cycle stability cannot be well resolved, most of the research is still in the laboratory stage. No mature industrial technology

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Heat 98g of barium hydroxide octahydrate to 84°C under stirring. After it melts, slowly add 1g of potassium hydroxide, continue heating and stirring for 30min, then add 0.5g of hydroxypropyl methylcellulose and 0.5g of water, and then After heating and stirring for 1 h, the mixture was put into a container and sealed.

Embodiment 2

[0024] Heat 95g of barium hydroxide octahydrate to 85°C under stirring. After it melts, slowly add 3g of potassium dihydrogen phosphate, continue heating and stirring for 40min, then add 1g of sodium polyaspartate and 1g of water, and then heat and stir After 1 h, the mixture was put into a container and sealed.

Embodiment 3

[0026] Heat 90g of barium hydroxide octahydrate to 88°C under stirring. After it melts, slowly add 6g of barium chloride, continue heating and stirring for 50min, then add 2g of hydroxymethyl cellulose and 2g of water, and then heat and stir for 1.5h After that, put the mixture into a container and seal it.

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PUM

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Abstract

The invention relates to a method for producing a moderate-temperature phase-change energy-storage material. The moderate-temperature phase-change energy-storage material is composed of barium hydroxide, a nucleating agent, a thickening agent and water. The method comprises the following steps: 1) heating barium hydroxide while stirring to a certain temperature, fusing barium hydroxide at constant temperature; 2) adding the nucleating agent, heating and stirring the materials for a while, uniformly mixing the nucleating agent and barium hydroxide; 3) adding the thickening agent and water, heating and stirring the materials for a while, uniformly mixing the materials, wherein, no layering phenomenon is generated; and 4) putting a mixture obtained in the step 3) in a container for being sealed. The produced phase-change energy-storage material has the advantages of large phase-change potential heat value, stable cycle process, small supercooling degree, long material life, and simple preparation method.

Description

technical field [0001] The invention relates to the technical field of phase-change energy storage materials, in particular to a medium-temperature phase-change energy storage material. Background technique [0002] Under the background of my country's rapid economic development today, the demand and dependence on energy are increasing day by day. However, due to the high exploitation of energy for many years, the energy supply has become increasingly tense, and energy shortage has become a bottleneck restricting my country's economic development. Under the situation of energy shortage, my country also faces the problem of low energy utilization rate, and the energy consumption per unit of GDP is much higher than that of developed countries. Therefore, improving energy utilization rate is not only saving resources, but also has great significance to the economic development of our country. [0003] Phase change energy storage material is a new energy-saving and environment...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/06
Inventor 杨晓林李鑫伟
Owner 杨晓林
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