Entropy Generation in Double-Diffusive Convection in a Square Porous Cavity using Darcy–Brinkman Formulation

Mchirgui, Ali; Hidouri, Nejib; Magherbi, Mourad; Brahim, Ammar Ben

doi:10.1007/s11242-012-9954-7

Cited by 46 publications

(21 citation statements)

References 31 publications

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“…Later, these studies were extended to the second law analyses of double diffusion convection in porous systems [30][31][32][33]. An early study in this regard was performed by Mchirgui et al [30] for a porous cavity with constant temperatures and concentrations for the vertical walls.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…An early study in this regard was performed by Mchirgui et al [30] for a porous cavity with constant temperatures and concentrations for the vertical walls. This investigation [30] was later extended to that of an inclined porous cavity [31]. In both studies [30,31], transient equations were considered and the transient total and local entropy generation rates were developed.…”

Section: Introductionmentioning

confidence: 99%

“…This investigation [30] was later extended to that of an inclined porous cavity [31]. In both studies [30,31], transient equations were considered and the transient total and local entropy generation rates were developed. More recently, Hussain [32] opted in favor of entropy generation in a tilted sinusoidal corrugated porous enclosure.…”

Section: Introductionmentioning

confidence: 99%

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Entropy Generation of Double Diffusive Forced Convection in Porous Channels with Thick Walls and Soret Effect

Torabi

Peterson

2017

Entropy

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Abstract:The second law performance of double diffusive forced convection in a horizontal porous channel with thick walls was considered. The Soret effect is included in the concentration equation and the first order chemical reaction was chosen for the concentration boundary conditions at the porous-solid walls interfaces. This investigation is focused on two principal types of boundary conditions. The first assumes a constant temperature condition at the outer surfaces of the solid walls, and the second assumes a constant heat flux at the lower wall and convection heat transfer at the upper wall. After obtaining the velocity, temperature and concentration distributions, the local and total entropy generation formulations were used to visualize the second law performance of the two cases. The results indicate that the total entropy generation rate is directly related to the lower wall thickness. Interestingly, it was observed that the total entropy generation rate for the second case reaches a minimum value, if the upper and lower wall thicknesses are chosen correctly. However, this observation was not true for the first case. These analyses can be useful for the design of microreactors and microcombustor systems when the second law analysis is taken into account.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Entropy Generation of Double Diffusive Forced Convection in Porous Channels with Thick Walls and Soret Effect

Torabi

Peterson

2017

Entropy

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“…Based on the enormous expansion of the applicability of convection, the researchers are continuously exploring the convective heat and mass transfer effects on double-diffusive convection (Mchirgui et al, 2012), Magnetohydrodynamic convection under different thermosolutal boundaries. The major branches of continuum mechanics includes the Magnetohydrodynamics (MHD).…”

Section: Introductionmentioning

confidence: 99%

Mathematical Modelling of MHD Double – Diffusive Natural Convection Flow in a Square Enclosure

Venkatadri¹,

Mohiddin²,

Reddy³

2017

Frontiers in Heat and Mass Transfer

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Two-dimensional unsteady laminar double-diffusive free convective flow of a conducting fluid in a thermally insulated square enclosure except the left wall has been numerically studied in presence of heat generation/absorption. The Marker and Cell (MAC) method is employed for solving nonlinear momentum, energy and concentration equations and the numerical MATLAB code is validated with the previous study. The computed results are depicted graphically and discussed for various values of Rayleigh number (Ra), Hartmann number (Ha), Buoyancy ratio parameter (N), Lewis number (Le) and heat absorption/generation parameter (γ). It is observed that the rate of heat and mass transfer decreases with increasing Rayleigh number.

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Thermodynamic Understanding of Formation and Evolution of Solid Electrolyte Interface in Li‐ion Batteries

He,

Wang,

Wang

et al. 2024

Batteries & Supercaps

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Formation is an essential process in the manufacturing of lithium‐ion batteries and determines the performance of batteries, including life time, rate capability and so forth. The core of formation is to form a stable solid electrolyte interphase (SEI), which profoundly influences interfacial reactions and ion transport within Li‐ion batteries, on the surface of electrode. It is crucial to fully and deeply understand the intricate structure and evolution of SEI, which remains largely uncharted. This paper aims to systematically analyze SEI thermodynamics, encompassing energy distribution, entropy dynamics during SEI formation, and enthalpy changes. SEI evolves towards an equilibrium state, maximizing entropy. The intricate relationship between SEI thermodynamics and battery performance is established by dissecting the impacts of temperature and current density on SEI thermodynamic parameters and battery characteristics. Elevated temperatures and higher current densities foster the development of a more porous and high‐entropy outer SEI layer, rendering organic SEI constituents prone to decompose into high‐energy gases and low‐energy inorganic compounds. Notably, a fast formation strategy within a high state‐of‐charge range offers a potential solution to high quality SEI. This review strives to bridge the divide between fundamental thermodynamics and practical battery performance, ultimately contributing to the advancement of battery manufacturing.

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Entropy Generation in Double-Diffusive Convection in a Square Porous Cavity using Darcy–Brinkman Formulation

Cited by 46 publications

References 31 publications

Entropy Generation of Double Diffusive Forced Convection in Porous Channels with Thick Walls and Soret Effect

Entropy Generation of Double Diffusive Forced Convection in Porous Channels with Thick Walls and Soret Effect

Mathematical Modelling of MHD Double – Diffusive Natural Convection Flow in a Square Enclosure

Thermodynamic Understanding of Formation and Evolution of Solid Electrolyte Interface in Li‐ion Batteries

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