Abstract
The finite element treatments (FEM) together with the characteristic-based split (CBS) scheme are applied to examine the entropy generation and convective flow due to the presence of the nano–encapsulated phase change materials (NEPCMs) confined an inclined prismatic containers. The enclosure is filled with elements of a porous medium (glass balls) and a sine formula is considered for the latent heat of the phase change. A combination of the shell and core heat capacity is assumed to formulate the overall heat capacity of the mixture and the computations are carried out for two different designs termed as D1 and D2. Features of the flow, solidification/melting zones, entropy generation, local and average Bejan numbers are illustrated. The main outcomes uncovered that using the second design D2 gives a reduction in the maximum values of the stream functions up to 36%. Also, the ribbon solidification/melting zones are occurred near the cold wall at the low values of while they are extending and moving away from the right inclined wall towards the heated area as is altered.
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