Thermal Conductivity Enhancement of Myristic Acid Using Exfoliated Graphite for Thermal Energy Storage Applications

  • Rohitash KumarEmail author
  • Rakshanda Jakhoria
  • Ambesh Dixit
Conference paper
Part of the Springer Proceedings in Energy book series (SPE)


The effect of exfoliated graphite (ExG) with myristic acid phase change material has been investigated to understand the enhancement of thermal conductivity and shape stabilization for the ExG—myristic acid composite system. The thermochemically synthesized ExG is added to myristic acid in 5, 10, and 15 wt% and the shape stabilized ExG-myristic acid composite samples are prepared. The heat release, solidification time and latent heat of myristic acid and ExG-myristic acid composites are measured using temperature history (T-history) and Differential Scanning Calorimetric (DSC) measurements, respectively. The measured melting temperature and latent heat of fusion of myristic acid are ~55 °C and ~185 kJ/kg, respectively. Latent heat of ExG-myristic acid composite samples has decreased linearly with increasing ExG weight fraction. T-history measurements suggest the reduction in solidification time for ExG-myristic acid composite samples and ~55% reduction in heat release time is observed for 15% ExG-myristic acid composite sample with respect to pristine myristic acid. The observed reduction in heat release time subtantiates the effective enhancement of thermal conductivity for ExG—myristic acid composite samples.


Phase change materials Latent heat Thermal energy storage Exfoliated graphite 



Authors acknowledge Defence Research and Development Organization (DRDO) through project #CHESS/CARS/ST/004 and Ministry of New and Renewable Energy (MNRE) support through project #15/40/2010-11/ST for financial assistance to carry out the experimental work.


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Copyright information

© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  • Rohitash Kumar
    • 1
    • 2
    Email author
  • Rakshanda Jakhoria
    • 1
  • Ambesh Dixit
    • 1
  1. 1.Department of Physics and Centre for Solar EnergyIndian Institute of Technology JodhpurJodhpurIndia
  2. 2.Defence Laboratory JodhpurJodhpurIndia

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