Phase change heat storage material and preparation method and application thereof

A technology of phase change heat storage and phase change latent heat, applied in the field of energy storage, can solve the problems of reducing the service life of heat storage products, poor heat storage capacity, supercooling, etc., and achieve high application potential, low supercooling degree, phase change process reversible effect

Active Publication Date: 2014-03-26
ZHEJIANG TRIPLE WIN MEDICAL APPLIANCE
View PDF8 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the inorganic hydrated salt sodium acetate trihydrate is used as heat storage, there are three problems: one is the problem of supercooling, the inorganic hydrated salt sodium acetate trihydrate cannot release the latent heat stored in the required temperature range and lose the value of heat storage; It is a problem of phase stratification. With the repeated heating-cooling the

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
  • Phase change heat storage material and preparation method and application thereof
  • Phase change heat storage material and preparation method and application thereof
  • Phase change heat storage material and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The raw materials are composed of: 70 parts by weight of sodium acetate trihydrate; 5 parts by weight of phase transition point regulator diethylamine; 20 parts by weight of softening agent glycerol; 1.08 parts by weight of nucleating agent activated carbon; 0.5 parts by weight; 10 parts by weight of water.

[0030] The step cooling curve data of the prepared samples are shown in Table 1:

[0031] temperature(℃) time (min) 65.3-50 17 50-40 20 40-35 20 35-30 120

[0032] The step cooling curves of the prepared samples are as follows figure 1 .

Embodiment 2

[0034] The raw materials are composed of: 55 parts by weight of sodium acetate trihydrate; 2 parts by weight of phase transition point regulator diethylamine; 20 parts by weight of softening agent glycerol; 1.08 parts by weight of nucleating agent activated carbon; 0.5 parts by weight; 15 parts by weight of water.

[0035] The step cooling curve data of the prepared samples are shown in Table 2:

[0036] temperature (°C) time (min) 65.9-48.2 31 48.2-45 76 45-40 28 40-35 27

[0037] The step cooling curves of the prepared samples are as follows figure 2 .

Embodiment 3

[0039] The raw materials are composed of: 60 parts by weight of sodium acetate trihydrate; 5 parts by weight of phase transition point regulator diethylamine; 30 parts by weight of softening agent glycerol; 1.08 parts by weight of nucleating agent activated carbon; 1 part by weight; 10 parts by weight of water.

[0040] The step cooling curve data of the prepared samples are shown in Table 3:

[0041] temperature (°C) time (min) 65.6-50 24 50-45 14 45-40 76 40-35 41

[0042] The step cooling curves of the prepared samples are as follows image 3 .

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

No PUM Login to view more

Abstract

The invention discloses a phase change heat storage material and a preparation method thereof. The phase change heat storage material comprises the following raw materials in parts by weight: 55-70 parts of sodium acetate trihydrate, 1-5 parts of a phase change point conditioning agent, 20-30 parts of a softening agent, 1.08 parts of a nucleating agent, 0.5-1 part of an overcooling-proof agent and 5-15 parts of water. The phase change temperature of the prepared phase change heat storage material is 50-55 DEG C, the latent heat of phase change is 200-250 KJ/kg, the phase change process is reversible, the degree of overcooling is low, softness can be kept after phase change crystallization, and the application potentiality is high in various heat storage fields. The phase change heat storage material is soft and elastic, and can be used for heat storage type heating pads which are particularly used after shower; the phase change heat storage material can also be used for indoor heating appliances of foot pads, cushions and the like.

Description

technical field [0001] The invention relates to a phase-change thermal storage material, a preparation method and an application of the phase-change thermal storage material, and belongs to the technical field of energy storage. Background technique [0002] Phase Change Materials (Phase Change Materials, referred to as PCM. The so-called phase change energy storage refers to the absorption or release of energy during the phase change process. When the phase change material changes from liquid to solid state, it needs to undergo a change in physical state. In these two During the phase change process, the material absorbs heat from the environment, and vice versa, releases heat to the environment. The energy that can be stored or released when the physical state changes is called phase change heat, and the temperature range for phase change is very narrow. The physical state occurs When changing, the temperature of the material itself remains almost constant before the phase...

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
IPC IPC(8): C09K5/06
Inventor 范立涛胥泽江
Owner ZHEJIANG TRIPLE WIN MEDICAL APPLIANCE
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap