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Phase change temperature regulation performance test of building materials

Phase change temperature regulation performance test of building materials-Physical Performance Testing-

Test Background

In the construction field, phase change energy storage materials are often used for large-capacity cold and heat storage. They are generally combined with heating systems or building materials and can become part of the building composition, such as interior walls, floors, etc. Phase change energy storage building materials can absorb heat from the environment or release heat to the environment during their phase changes, thereby achieving the purpose of energy storage and release and adjusting the mismatch between energy demand and supply.
The phase change temperature regulation performance test of building materials can measure the phase change temperature and calculate the phase change latent heat of phase change materials, providing a reference for the manufacture and selection of building materials.
Zhongke Testing and Reliability Experiment Center has the capabilities of environmental testing and reliability performance testing of various building materials, products and components, and provides professional phase change temperature regulation performance testing services for building materials and products.

Scope of tests

Phase change mortar, phase change cement, phase change putty, phase change concrete, phase change gypsum board, phase change asphalt, phase change paint and a series of phase change building materials and products.

Test method

Put substances of different temperatures into an adiabatic closed system. The high-temperature substance releases heat and cools down, and the low-temperature substance absorbs heat and heats up. Finally, the thermal equilibrium temperature is reached, and the heat released by the high-temperature substance is equal to the heat absorbed by the low-temperature substance.
Using water as a high-temperature substance that releases heat and phase-change materials as a low-temperature substance that absorbs heat, by measuring the mass and temperature of water and phase-change materials, drawing the temperature change curves of water and phase-change materials, we can obtain the phase-change temperature of the phase-change material, calculate the heat absorption and specific heat capacity of the phase-change material, and finally calculate the phase-change latent heat of the phase-change material.

Test standard:

JC/T 2111-2012 Test method for phase change temperature regulation performance of building materials
JG/T 534-2018 Thermal reliability test method of phase change materials for construction
ASTM C1784-2014 Standard test method for measuring thermal storage properties of phase change materials and products using the heat flow meter method

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