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Novel metal base material shaping heat accumulating material and preparation method thereof

A technology of heat storage materials and metal substrates, applied in the field of phase change heat storage materials and heat storage materials, can solve problems such as poor thermal conductivity, liquid leakage, insufficient solar energy, etc., and achieve high thermal conductivity and fast heat absorption and release speed , the effect of preventing leakage

Inactive Publication Date: 2016-02-03
JIANGSU QIZHENG NEW ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] As a cheap and clean energy source, solar energy has been widely used in production and life. Matching and coordination, resulting in a lot of energy waste
For example, solar energy is excessive during the day, causing solar energy to be wasted in vain, and solar energy is not enough at night and in rainy days
The current heat storage materials generally have the disadvantage of poor thermal conductivity, so the phase change heat storage components made of them cannot fully exert the heat storage function of the heat storage material due to their poor thermal conductivity.
Secondly, when the heat storage material undergoes a solid-liquid phase transition, it will lead to the problem of liquid leakage

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0016] Below with example, the embodiment of the present invention is described further:

[0017] Process the porous copper foam into a cylinder of φ46*1500. Make a mold for melting paraffin according to the size of φ46*1500, and put the prepared porous copper foam into the mold. The paraffin wax is heated and melted, and poured into the mold, just submerged in the porous copper foam, and cooled to remove the mold to obtain a shaped heat storage material. Porous copper foam is a material with a porosity of 98%, so the mass fraction of porous copper foam in the mixture accounts for 16.8%, and the mass fraction of paraffin wax accounts for 83.2%. The latent heat of phase change of the material is 150kJ / kg, and the thermal conductivity is 8.9W / (m·K).

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PUM

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Abstract

The invention discloses a novel metal base material shaping heat accumulating material and a preparation method thereof. The heat accumulating material is prepared by compounding paraffin and porous foamy copper, wherein the mass fraction of paraffin is 83.2%, the mass fraction of porous foamy copper is 16.8%, the melting point of the selected paraffin in the material is 40-60 DEG C, and the voidage of the selected porous foamy copper is 98% or above. The material has the advantages that the heat absorption and discharge speed is quick, and the appearance after phase change is unchanged.

Description

1. Technical field [0001] The invention relates to the field of phase change heat storage materials, in particular to a heat storage material compounded with paraffin and porous copper foam. 2. Background technology [0002] Energy saving and environmental protection are an important topic in the field of energy utilization. Using phase change latent heat of phase change heat storage materials to store energy is a new type of energy saving technology. During the phase change process, the phase change material absorbs the heat of the surrounding environment, and releases heat to the surrounding environment when the temperature of the surrounding environment decreases, so as to achieve the purpose of controlling the temperature of the surrounding environment and saving energy. It has broad application prospects in solar energy utilization, heat energy recovery, air conditioning and refrigeration, building energy saving, aerospace and other fields. [0003] As a cheap and clea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/06
Inventor 王金平朱彩云
Owner JIANGSU QIZHENG NEW ENERGY
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