A phase-change material (PCM) is a substance with a high heat of fusion which, melting and solidifying at a certain temperature, is capable of storing and releasing large amounts of energy. Heat is absorbed or released when the material changes from solid to liquid and vice versa; thus, PCMs are classified as latent heat storage (LHS) units.
Read more about Phase-change Material: Characteristics and Classification, Selection Criteria, Thermophysical Properties of Selected PCMs, Technology, Development and Encapsulation, Thermal Composites, Applications, Fire and Safety Issues
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