This research investigates the solidification traits of deionized water dispersed with pure graphite flakes (NGF), known as micro-particle enhanced section change materials (MePCM), in two spherical capsules of ‘64 mm’ and ‘52 mm’ diameter. Heterogeneous nucleation issue of deionized water reduces from zero.0531 to zero.0001 because of discount in touch angle with addition of NGF. Thermal conductivity outcomes present an enhancement of 25% within the MePCMs with 5 wt. % over the bottom PCM and the enhancement will not be proportional to extend in mass fraction of NGF. The presence of NGF in deionized water eliminates the subcooling and expedites the solidification price. The MePCM shops nearly 94% of cool power in a shortened period in comparison with the bottom PCM in each capsules. In abstract, the NGF is usually a promising thermal enhancer to arrange the MePCMs in giant scale at an reasonably priced value for the cool thermal power storage functions.