Unlock instant, AI-driven research and patent intelligence for your innovation.

High-temperature energy storage phase-change material and preparation and application thereof

A technology of energy storage phase change and high temperature, applied in the field of aluminum alloy high temperature energy storage phase change materials, can solve the problem of high latent heat in preparation, achieve high energy storage density, good thermal cycle performance, and improve energy conversion efficiency.

Inactive Publication Date: 2013-03-27
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation of Al-Mg-Sn ternary alloy system has high latent heat, and there are few reports on the literature and patents applied to solar power plants.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • High-temperature energy storage phase-change material and preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The aluminum powder with a mass percentage of 60% and a purity of 99.5%, a magnesium powder with a mass percentage of 35% and a purity of 99.5% and a tin powder with a mass percentage of 5% and a purity of 99.0% are uniformly mixed Then, the balls were placed in a high-energy planetary ball mill at 500 R / min at a weight ratio of 50:1, and after ball milling for 5 hours, samples were taken by wet method.

[0016] Put the ball-milled product into a high-temperature tube furnace, under the protection of argon atmosphere, heat up to 500°C at 10°C / min and then roast for 3h. After the product is naturally cooled to room temperature, it is ground into powder to obtain the product.

[0017] Netzsch Proteus STA449 thermal analyzer was used to investigate the melting enthalpy of the alloy product. The experimental conditions are: sample dosage is about 10mg, 50ml / min argon atmosphere, heating rate 20°C / min, experimental temperature range 40-600°C, and measuring the enthalpy of melting...

Embodiment 2

[0019] The aluminum powder with a mass percentage of 60% and a purity of 99.5%, a magnesium powder with a mass percentage of 30% and a purity of 99.5% and a tin powder with a mass percentage of 10% and a purity of 99.0% are uniformly mixed Then, the balls were placed in a high-energy planetary ball mill at 500 R / min at a weight ratio of 50:1, and after ball milling for 5 hours, samples were taken by wet method.

[0020] Put the ball-milled product into a high-temperature tube furnace, under the protection of argon atmosphere, heat up to 600°C at 10°C / min, and then calcinate for 7 hours. After the product is naturally cooled to room temperature, the product is ground into powder.

Embodiment 3

[0022] The aluminum powder with a mass percentage of 60% and a purity of 99.5%, a magnesium powder with a mass percentage of 25% and a purity of 99.5% and a tin powder with a mass percentage of 15% and a purity of 99.0% are uniformly mixed Then, the balls were placed in a high-energy planetary ball mill at 500 R / min at a weight ratio of 50:1, and after ball milling for 5 hours, samples were taken by wet method.

[0023] Put the ball-milled product into a high-temperature tube furnace, under the protection of argon atmosphere, heat up at 10°C / min to 700°C and then roast for 5h. After the product is naturally cooled to room temperature, the product is ground into powder.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
melting pointaaaaaaaaaa
phase transition temperatureaaaaaaaaaa
Login to View More

Abstract

The invention relates to a high-temperature energy storage phase-change material and preparation and application thereof. The high-temperature energy storage phase-change material is prepared by a method of carrying out high-energy ball milling and powder metallurgy on an aluminum-magnesium-stannum (Al-Mg-Sn) ternary alloy system. In the Al-Mg-Sn ternary alloy, the weight percent content of Mg is 25-35 percent, and the weight percent content of Sn is 5-10 percent. The high-temperature energy storage phase-change material has the characteristics of high latent heat of phase change, phase change stability and reversible cyclicity. By adopting the high-temperature energy storage phase-change material, industrial waste heat recovery, heat energy storage and transport peak clipping and valley filling of thermal power plants, especially solar power plants, and the high-efficiency utilization of energy sources can become possible.

Description

Technical field [0001] The invention relates to an aluminum alloy high-temperature energy storage phase change material and its preparation and application. Background technique [0002] The energy problem is one of the most serious problems facing the economic and social development of the world and China. The shortage of conventional energy sources and the resulting environmental pollution problems will directly affect the implementation process of the future sustainable development strategy of mankind. As a kind of pollution-free natural energy with infinite reserves, solar energy has attracted widespread attention. Among the solar thermal utilization technologies, solar water heaters, solar environmental protection buildings, solar photovoltaic power generation and solar thermal power generation are currently widely used. Large-scale concentration of solar thermal energy and power generation is an important energy foundation for the sustainable development of the power indus...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C22C21/06C22C23/02C22C1/04
Inventor 孙立贤赵军宁徐芬张箭姜春红
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI