Economic interests 1 Enhancement of heat transfer 1 Enthalpy-porosity 1 Entropy 1 FEM 1 Finite element method 1 Fins (heat exchange) 1 Heat Transfer enhancement 1 Heat storage 1 Heat transfer coefficients 1 Heat transfer rate 1 Hexagonal phasis 1 Latent heat 1 Latent heat thermal storage 1 Melting 1 PCM 1 Phase change materials 1 Shell-and-tube 1 Thermal storage system 1 Tube 1 latent heat 1 tubes 1 wings