Analysis of Factors Affecting the Performance of Porous Shaped Phase Change Energy Storage Materials
As a renewable energy source,solar energy has attracted more and more attention because of its growing energy demand and the huge potential of greenhouse gas emissions.However,the intermittent and stochastic nature of the solar itself limited the conversion and storage efficiency of solar energy.In recent years,the latent heat storage system based on solid-liquid phase change energy storage materials has expected to become a suitable way to improve solar absorption and conversion due to high-storage density and excellent chemical stability.Nevertheless,the solid-liquid phase change energy storage materials are often limited in practical applications by their own phase separation,low heat transfer rates,subcooling,leakage in the molten state and unstable properties.One of the solutions is to combine porous carriers with solid-liquid phase change energy storage materials to produce porous fixed phase change energy storage materials.An introduction is provided to the energy storage mechanism and heat transfer enhancement mechanism of phase change energy storage materials.The effects of porous carrier materials types,preparation methods on the porous shaped phase change energy storage materials,and its potential applications are systematically analyzed.
solar energylatent heat storageporous carriersshaped phase change energy storage materialsphase change
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