Phase change materials and differential scanning calorimetry
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Abstract
A brief review of the main characteristics of phase change materials (PCM), widely used today to improve the efficiency of devices that use solar energy, was presented and the main characteristics of the most widely used method in the literature for the study of their thermal properties were summarised: differential scanning calorimetry (DSC) in its two main aspects: Heat Flux DSC (Heat Flux DSC) and Power Compensated DSC (Power Compensated DSC). Examples of contemporary research show how its application allows to quickly and accurately determine the variations in melting temperature Tf and enthalpy of fusion ΔHf, in different PCM materials and the effect of additives or thermal recycling in the vicinity of the melting point. It confirms the importance of studying such materials to determine their simplest, most efficient and low-maintenance use in the various solar energy sources.
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