Melting and solidification behavior of PCM embedded in metal foam - Archive ouverte HAL
Communication Dans Un Congrès Année : 2020

Melting and solidification behavior of PCM embedded in metal foam

Résumé

In this paper, a numerical study is conducted on the melting and solidification process of metal foam/paraffin wax with cyclic heating and cooling. A mathematical model based on the Brinkman-Frochheimer extended Darcy equation and the local thermal non-equilibrium model (LTNE) is proposed. The paraffin phase change is modeled by enthalpy-porosity method. The numerical model is solved using a finite element analysis by the Porous Media and Subsurface flow module (Brinkman Equation (br)), and the local Thermal Non-Equilibrium module in COMSOL Multiphysics 5.3a software. The steps of the numerical model can be summarized as, discretization of the domain and coupled governing equations (element, type, and size), defining the time step and relative and absolute tolerances or errors for the convergence conditions of the solution, determining the nonlinear settings for iteration sequences and selecting the appropriate solver techniques. The numerical results are validated by comparing with experimental data. The phase and temperature fields of PCM embedded in metal foam showed that the conduction is the dominant heat transfer mode during the melting process. It is found that the time of melting was reduced with sinusoidal heating.
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Dates et versions

hal-02966782 , version 1 (14-10-2020)

Identifiants

  • HAL Id : hal-02966782 , version 1

Citer

Mohamed Moussa El Idi, Moustapha Karkri. Melting and solidification behavior of PCM embedded in metal foam. COMSOL CONFERENCE 2020 EUROPE, Oct 2020, Grenoble, France. ⟨hal-02966782⟩
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