contrary, the starting melting temperature T0, called also the “Onset” is not affected by the scanning rate since this parameter is a thermodynamic property inherent to the material and thereby, independent of the experimental conditions. To gain a better insight of the dependence of the PCMs melting peak on the scanning rate, the peak temperature evolution is plotted in Fig. 3 with respect to the heating rate for both damaged and non- damaged PCMs. One can see that the peak increases quite proportionally with the heating rate. The intersection of the tendency curves with the temperature vertical axis can be approximated to the starting melting point (onset). The extra- polated temperatures at β1⁄40 are 21.7 1C and 22 1C recorded respectively for damaged and non-damaged PCMs. This means that when the scanning rate is very slow (nearly zero), the peak temperature tends to the onset. Note that this finding correlates well with the results of [22] in which a relationship was estab- lished to highlight the DSC kinetic effect on the peak temperature