One can notice that for the heating rates lower than 5 K/min, the DSC curves for both damaged and non-damaged PCMs are confused in the considered temperature range. However, when the heating rate is higher than 5 K/min, a slight difference is noticed in the heat fluxes between damaged and non-damaged PCMs cases. For illustration, a maximal deviation of 8.8% is recorded in the peak temperature at the heating rate of 20K/min between damaged and non-damaged PCMs.
In addition, one can see that the peak related to the PCMs phase change shifts to the higher temperatures when the heating rate increases. This finding reflects the dependence relationship of this parameter with the experimental configuration: the higher is the heating rate, the larger is the melting peak ΔTpeak. On the