Fig. 6 demonstrates DSC curves of paraffin and paraffin/DP composite PCM. Still, the detailed results of onset melting temperature (TOnset), peak melting temperature of phase change (TPeak) and latent heat (HM) that are obtained from DSC curves in Fig. 6 are presented in Table 5.
As shown in both Fig. 6 and Table 5, the TOnset,TPeak and HM of paraffin in melting phase change process were determined as 42.11 C, 48.28 C and 165.59 J/g, respectively; while, in freezing process, they are 46.94 C, 45.06 C and 170.76 J/g, respectively.
And, the measured TOnset and TPeak of paraffin/DP composite PCM in melting process are 41.11 C and 47.81 C, respectively; and they are 47.54 C and 44.21 C, respectively, in freezing process.