Numerical simulation of the heat storage performance of aluminum/paraffin composite phase change materials

Phase change energy storage materials are widely used in the fields of battery thermal management and solar power generation due to their characteristics storing releasing periodically. However, further applications limited by low conductivity. The addition high conductivity foams provides an effective method address this shortcoming. A three-periodic minimal surface (TPMS) was generate aluminum foam skeleton, variation phase heat aluminum/paraffin composite material numerically simulated based on pore scale. results showed that skeleton enhanced shortened melting time, time 68%, 75% 80% when compared with pure paraffin wax at porosity 0.90, 0.85 0.80, respectively, temperature field more uniform during process, non-equilibrium effect between is verified, lower material, obvious is.