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Metal substrate highly heat-conducting heat storage material and preparation method therefor

A heat storage material and metal substrate technology, applied in the field of phase change heat storage materials and heat storage materials, can solve the problems of insufficient solar energy, poor thermal conductivity, poor thermal conductivity, etc., and achieve fast heat absorption and heat release, phase change The effect of high enthalpy and high thermal conductivity

Inactive Publication Date: 2015-12-16
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.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] Below with example, the embodiment of the present invention is described further:

[0018] Process the through-hole foamed aluminum into a cylinder of φ46*1500. Make a mold for melting paraffin according to the size of φ46*1500, and put the finished through-hole foamed aluminum into the mold. Heat and melt the paraffin, and pour it into the mold. The amount of paraffin just submerges the through-hole foamed aluminum. After cooling to remove the mold, the heat storage material is obtained. The through-hole foamed aluminum selects a material with a porosity of 90%, so the mass fraction of the through-hole foamed aluminum in the mixture accounts for 25%, and the paraffin wax accounts for 75%. The latent heat of phase change of the material is 135kJ / kg, and the thermal conductivity is 4.2W / (m·K).

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PUM

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Abstract

The invention discloses a metal substrate highly heat-conducting heat storage material and a preparation method therefor. The heat storage material is prepared by compounding 75% by mass of paraffin and 25% by mass of through-hole foamed aluminum. The melting point of selected paraffin in the materials is 40-60 DEG C, and the porosity of the selected through-hole foamed aluminum in the materials is over 90%. The material has the advantages of being fast in heat absorption and heat release speed and great in heat storage.

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 by paraffin and through-hole foamed aluminum. 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 ...

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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