Are phase change materials suitable for thermal energy storage?
Abstract: Thermal energy storage (TES) technology relies on phase change materials (PCMs) to provide high-quality, high-energy density heat storage. However, their cost, poor structural performance, and low heat conductivity restrict their practical use.
Can phase change materials improve thermal performance?
Phase change materials (PCMs) have shown their big potential in many thermal applications with a tendency for further expansion. One of the application areas for which PCMs provided significant thermal performance improvements is the building sector which is considered a major consumer of energy and responsible for a good share of emissions.
How thermal energy is stored in a phase change process?
Also, thermal energy can be stored in the form of latent heat which is utilized during the phase change process. In the charging process, heat is used to melt the solid into liquid isothermally. When the stored energy is needed, heat is retrieved from the liquid mass and solidification occurs.
Do phase change materials affect building solar heat?
A fair number of numerical studies were dedicated to numerical simulation of PCM walls and PCM wallboards to assess the influence of phase change materials on controlling the building solar heat, minimizing indoor temperature oscillations the internal temperature oscillations and maintain thermal comfort.
Can phase change materials be used as insulation layers?
Phase change materials can also be used as insulation layers in buildings for energy saving. The results of investigations showed that utilizing PCMs integrated insulation layers could reduce the heat loads. Also, the application of PCM wallboards on the exterior side can decrease the solar heat gain and maintain thermal comfort [60 – 62].
Can a phase change material be used as a substitute for thick walls?
Phase change materials are investigated as substitutes for thick walls and thermal insulation since phase change material (PCM) has high heat capacity and changes phase isothermally. PCM can provide a more adequate solution if inserted in the wall.
相变蓄热地板的研究现状与展望
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Experimental Study on Phase Change Energy
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