Low-Temperature Phase Change Materials

Description

A PCM (phase change material) is a substance with high heat of fusion, melting and solidifying at a certain temperature, which is capable of storing and releasing large amount of heat energy. This heat energy is absorbed or released when the phase changing material changes its phase form solid to liquid or vice versa. By using phase change material we increase COP (coefficient of performance) of refrigeration and reduce temperature fluctuation, as well as reduce the compressor work. PCM stores 5 to 14 times more heat per unit volume than conventional storage materials such as water, rock etc. PCM may also be used in load shading applications to shift electricity usage to an optimum time.

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