Preparation of organic based ternary eutectic fatty acid mixture as phase change material (PCM), optimizing their thermal properties by enriched solar treated exfoliated graphite for energy storage

Rapid economic and social development has led to increase the demand on energy gradually. In thermal system, the energy can be stored for reusing or recycling purpose. The latent heat storage (LHS) is the most effective method for storing the thermal energy and it mainlydependson organic and inorganic Phase change material (PCM). This study is based on preparation of organic based ternary eutectic fatty acid mixture based on capric-myristic-palmitic acid (CA-MA-PA) as PCM in the mass ratio and optimizing their thermal behaviour by using solar enriched treated graphite and then exfoliated by microwave in the ratio 99.83:0.17. The structure morphology was analysed by using scanning electron microscope (SEM), its functional group were proven by Fourier transform infrared spectroscopy (FT-IR) then phase change temperature composite PCM were obtained by using Differential Scanning Calorimetric (DSC). The thermal conductivity viewed by KD2pro were increased from 0.149W/mK to 0.190W/mK. Overall result examined that CA-MA-PA/Exfoliated graphite nanoplatelets (xGnP) can be used for low temperature LHS. (C) 2015Elsevier Ltd. All rights reserved.