Heat transfer in a non-uniformly heated enclosure filled by NEPCM water nanofluid

International Journal of Numerical Methods for Heat &amp Fluid Flow, Год журнала: 2024, Номер 34(12), С. 4384 - 4408

Опубликована: Окт. 14, 2024

Purpose This paper aims to focuses on by investigate the heat transmission and free convective flow of a suspension nano encapsulated phase change materials (NEPCMs) within an enclosure. Particles NEPCM have core-shell structure, with material (PCM) serving as core. Design/methodology/approach The enclosure consists square chamber insulated wall top bottom vertical walls that are differently heated. governing equations investigated using finite element technique. A grid inspection validation test done confirm precision results. Findings effects fusion temperature (varying from 0.1 0.9), Stefan number (changing 0.2 0.7), Rayleigh 10 3 6 ) volume fraction nanoparticles 0 0.05) streamlines, isotherms, capacity ratio average Nusselt graphs tables. From this investigation, it is found results in significant enhancement transfer compared pure fluid. augmentation becomes more important for low number, which around 16.57% approximately at 0.2. Secondary recirculation formed near upper left corner result non-uniform heating border. eddy expands notably rises. study findings indicate nanosuspension has potential act smart working fluid, significantly enhancing numbers enclosed chambers. Research limitations/implications particle core (n-octadecane, phase-change material) shell (PMMA, encapsulation material). host fluid water particles considered form dilute suspension. Practical implications Using NEPCMs energy storage thermal systems show improving efficiency several engineering applications. merge beneficial characteristics PCMs enhanced conductivity nanoparticles, providing flexible alternative effective control. Originality/value explore water-type nanofluid boundary, uniformly heated cooled right boundary non-uniformly boundary.

Язык: Английский

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Magnetic field effects on non-Newtonian NEPCM in A-shaped cavity: an integrated study using ANN and ISPH method

The European Physical Journal Plus, Год журнала: 2024, Номер 139(12)

Опубликована: Дек. 3, 2024

Язык: Английский

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Analysis of thermosolutal buoyancy-driven suspension comprising nano-encapsulated phase change materials using finite element method and ANN-based MLP algorithm

Journal of the Taiwan Institute of Chemical Engineers, Год журнала: 2024, Номер 168, С. 105912 - 105912

Опубликована: Дек. 23, 2024

Язык: Английский

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Investigation of the Local thermal Non-Equilibrium (LTNE) effects on magneto-natural convection of nano-encapsulated PCMs in an elliptical non-Darcian porous annulus

International Journal of Heat and Fluid Flow, Год журнала: 2024, Номер 112, С. 109710 - 109710

Опубликована: Дек. 18, 2024

Язык: Английский

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