Thermal and irreversibility analyses of a suspension embodying nano-encapsulated phase change materials using power-law and Darcy-Brinkman-Forchheimer models

Case Studies in Thermal Engineering, Journal Year: 2024, Volume and Issue: 59, P. 104509 - 104509

Published: May 8, 2024

The study of natural convection and heat transfer in a trapezoidal cavity finds wide range technological applications including thermal energy storage systems, building ventilation/insulation, waste recovery, electronic device cooling, controlling PV panel temperature, conservation, exchangers, nuclear reactors, furnaces, glass production, food processing, drying technologies. purpose the current is to explore entropy non-Newtonian nanoenhanced phase change material (NEPCM) suspension saturated porous medium enshrouded trapezoid-shaped domain with three heated blocks fitted bottom surface. novelty present work introduction power-law (Ostwald-de Waele) model subject NEPCM enclosure emplacing fins at its surface embedded Brinkman-Forchheimer extended Darcy variant porosity. finite element method implemented solve governing equations numerically. important findings include streamlines, isotherms, velocities, apparent viscosity enhance while generation whittles down rise number. Entropy ameliorates by 519.16% for low high porosity medium. maximum augments 1441.24% when power law index ameliorates.

Language: Английский

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Analysis of thermal performance and irreversibility of double-diffusive buoyancy-driven nano-suspension subject to local thermal non-equilibrium model

Case Studies in Thermal Engineering, Journal Year: 2024, Volume and Issue: 63, P. 105294 - 105294

Published: Oct. 15, 2024

Language: Английский

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Mixed convective heat transfer in an open cavity with fins

Heat Transfer, Journal Year: 2024, Volume and Issue: 53(8), P. 4169 - 4196

Published: July 17, 2024

Abstract This work numerically explores the mixed convective heat transfer in an open square enclosure containing conducting fins fixed to heated vertical wall. kind of with has enormous potential due its applications research, engineering, and current industries. Therefore, is highly significant understand impact convection. The external flow enters from hole bottom wall leaves upper left isothermally, are attached walls at a uniform height. Both lower adiabatic, whereas right sidewall temperature. non‐dimensional transport equations resolved by using finite element method. study accomplished for wide control variables range, such as Reynolds number (50 ≤ Re 200), Richardson's (0.1 Ri 10), length ( L f = 0.2, 0.4, 0.6), size outlet opening W out 0.1, 0.3), gaps between S 0, 0.45, 0.9). results show that thermal performance meaningfully affected parameters. maximum minimum happens when position 0) 0.9), respectively. improves raising , increasing fin's distance reduces significantly. rises 13% decrease 0.6 0.2 200, 0 improvement convection on Also, increases 15% 1 9.

Language: Английский

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Influence of space conjugate temperature varying non-uniform heat sink/source on hydromagnetic slip water-EG (50:50) nanofluid

Case Studies in Thermal Engineering, Journal Year: 2024, Volume and Issue: unknown, P. 105220 - 105220

Published: Oct. 1, 2024

Language: Английский

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Numerical Analysis of Mhd Double-Diffusive Mixed Convection and Entropy Generation in H-Shaped Cavity Filled by Ne-Phase Change Materials-Water Mixture Under the Effect of a Rotating Cylinder

Published: Jan. 1, 2024

Language: Английский

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