Effect of inclined magnetic field on the entropy generation in an annulus filled with NEPCM suspension

Abstract

The encapsulation technique of phase change materials in the nanodimension is an innovative approach to improve the heat transfer capability and solve the issues of corrosion during the melting process. (is new type of nanoparticle is suspended in base fluids call NEPCMs, nanoencapsulated phase change materials. (e goal of this work is to analyze the impacts of pertinent parameters on the free convection and entropy generation in an elliptical-shaped enclosure filled with NEPCMs by considering the effect of an inclined magnetic field. To reach the goal, the governing equations (energy, momentum, and mass conservation) are solved numerically by CVFEM. Currently, to overcome the low heat transfer problem of phase change material, the NEPCM suspension is used for industrial applications. Validation of results shows that they are acceptable.(eresults reveal that the values of Nuave descend with ascending Ha while Ngen has a maximum at Ha 16. Also, the value of NT,MF increases with ascending Ha. (e values of Nuave and Ngen depend on nondimensional fusion temperature where good performance is seen in the range of 0.35 < θf < 0.6. Also, Nuave increases 19.9% and ECOP increases 28.8% whereasNgen descends 6.9% when ϕ ascends from 0 to 0.06 at θf 0.5. Nuave decreases 4.95% while Ngen increases by 8.65% when Ste increases from 0.2 to 0.7 at θf 0.35.