Novel test system for thermal stability of phase-change material

A phase change material, thermal stability technology, applied in the investigation phase/state change and other directions, can solve the problems of low work efficiency, low heat transfer, high initial investment, etc., to achieve less space occupation, low economic cost, and operation strong effect

Inactive Publication Date: 2016-09-07
GUANGDONG UNIV OF TECH
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Problems solved by technology

However, the above two improvement schemes have the following disadvantages: 1. Only the cyclic measurement of a single sample can be realized at a time, and the work efficiency is low; 3. All the materials ar

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  • Novel test system for thermal stability of phase-change material
  • Novel test system for thermal stability of phase-change material
  • Novel test system for thermal stability of phase-change material

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Embodiment Construction

[0021] The present invention will be described in detail below with reference to the drawings and specific embodiments.

[0022] A new type of phase change material thermal stability test system, which can be used to test the thermal stability of phase change materials, such as figure 1 As shown, it includes a cold and hot water circulation supply subsystem, a quick-heating and quick-cooling sample test area 7, a mode switching automatic control subsystem, a data measurement system, and a data acquisition cycle count system.

[0023] Wherein, the cold and hot water circulation supply subsystem includes a cold water storage tank 11, a hot water storage tank 12 and a heat pump cycle module. The heat pump cycle module includes a compressor 1, a water-cooled condenser 2, an expansion valve 3, and a water-cooled The evaporator 4, the compressor 1 is connected to a water-cooled condenser 2 through a pipeline, the water-cooled condenser 2 is connected to the expansion valve 3 through a pip...

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Abstract

The invention discloses a novel test system for thermal stability of a phase-change material. The test system comprises a cold and hot water circulating supply subsystem and a fast heating and fast cooling sample test are. The cold and hot water circulating supply subsystem comprises a cold water storage tank, a hot water storage tank and a heat pump circulating module. A compressor in the heat pump circulating module is connected to a water-cooled condenser; the water-cooled condenser is connected with an expansion valve; the expansion valve is connected to a water-cooled evaporator; the water-cooled evaporator is connected with the compressor; the water-cooled condenser is arranged in the hot water storage tank; and the water-cooled evaporator is arranged in the cold water storage tank. The invention has the beneficial effects of simple function, strong pertinence, and realization of tens of thousands of times of rapid heating / cooling phase-change circulation; the equipment has simple structure, low difficulty of installation and strong operationality, realizes automatic control and saves power; the design is simple and efficient, has good manufacturability, small space occupation and low cost; and the equipment does not contain mechanical moving parts, avoids frequent maintenance, and has long service life and very high application value in engineering.

Description

【Technical Field】 [0001] The invention relates to the field of material testing, in particular to a new type of phase change material thermal stability testing system. 【Background technique】 [0002] After a phase change material undergoes multiple phase change cycles, the stability of its thermophysical properties is an important indicator that determines the application field of the phase change material. The existing experimental instruments that can realize the functions of rapid cooling and rapid heating are mainly used to study the thermal physical parameters of the material after rapid cooling or rapid heating of the sample. Therefore, only one cooling or heating is performed, and the phase change material is not used for multiple rapid heating Rapid cooling phase change cycle and counting as the goal. In addition, the existing equipment has a complicated structure, is difficult to install, and is expensive, generally requiring about 30,000 to 50,000 yuan per unit. If it...

Claims

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Application Information

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IPC IPC(8): G01N25/02
CPCG01N25/02
Inventor 宋孟杰陈颖廖立元杨庆成
Owner GUANGDONG UNIV OF TECH
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