Role of entropy generation on thermal management during natural convection in tilted porous square cavities

Singh, Abhishek Kumar; Basak, Tanmay; Nag, Arijit; Roy, S.

doi:10.1016/j.jtice.2014.12.026

Cited by 25 publications

(10 citation statements)

References 56 publications

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“…[71] for the survey of literature on entropy generation in free and mixed convection within porous media. Further, some very recent examples of investigations in this area could be found in [86][87][88] [89]. Hooman and Ejlali [56] numerically solved the Darcy-Brinkman model and the LTE energy model for a fully filled porous pipe under developing condition.…”

Section: Porous Mediamentioning

confidence: 99%

Entropy generation in thermal systems with solid structures – A concise review

Torabi

Zhang

Karimi

et al. 2016

International Journal of Heat and Mass Transfer

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Analysis of thermal systems on the basis of the second law of thermodynamics has recently gained considerable attention. This is, in part, due to the fact that this approach along with the powerful tools of entropy generation and exergy destruction provides a unique method for the analysis of a variety of systems encountered in science and engineering. Further, in recent years there has been a surge of interest in the thermal analysis of conductive media which include solid structures. In this work, the recent advances in the second law analyses of these systems are reviewed with an emphasis on the theoretical and modelling aspects. The effects of including solid components on the entropy generation within different thermal systems are first discussed. The mathematical methods used in this branch of thermodynamics are, then, reviewed. This is followed by the conclusions regarding the existing challenges and opportunities for further research.

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Section: Porous Mediamentioning

confidence: 99%

Entropy generation in thermal systems with solid structures – A concise review

Torabi

Zhang

Karimi

et al. 2016

International Journal of Heat and Mass Transfer

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“…The momentum and energy balance equations [ Eqs. using the penalty parameter ( γ ) and the modified set of governing equations results in the algebraic residual equations [33] . The set of residual equations are solved by using the Newton-Raphson method and the detailed solution procedure is discussed in the previous works [33,55] .…”

Section: ∂U ∂Xmentioning

confidence: 99%

“…The solution procedure for solving Eq. (8) by the Galerkin finite element method is discussed in the earlier works [33,55] .…”

Section: Streamfunctionmentioning

confidence: 99%

“…Extensive studies have also been carried out to study the convective heat transfer in the fluid saturated porous media due to its applicability in major industrial applications involving the geothermal fields [17] , bioengineering [18] , phase change process [19,20] , heat exchanger applications [21,22] , etc. A number of studies on natural convection in the porous cavities with various geometrical shapes (square, rectangular, trapezoidal, inclined, rhombic) were carried out by earlier researchers [23][24][25][26][27][28][29][30][31][32][33] . The trapezoidal cavities are highly useful in various applications and a number of research works are presented in the literature based on the practical applications.…”

Section: Introductionmentioning

confidence: 99%

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Analysis of entropy production vs . energy efficiencies during natural convection in porous trapezoidal cavities exposed to various thermal ambience

Biswal

Rathnam

Basak

2016

Journal of the Taiwan Institute of Chemical Engineers

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“…Recently, many investigations undertaken on natural convection in enclosures filled with porous media [1][2][3][4][5][6][7]. On the other hand, the conjugate heat convection in enclosures filled with porous medium has evoked much interest by many researchers due to its various practical applications such as cold storage installations and high performance insulation for buildings.…”

Section: Introductionmentioning

confidence: 99%

Numerical investigation of conjugate natural convection heat transfer in a square porous cavity heated partially from left sidewall

Al‐Farhany¹,

Abdulkadhim²

2018

IJHT

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The conjugate natural convection heat transfer in a partially heated square porous enclosure had been studied numerically. The governing dimensionless equations are solved using COMSOL Multiphysics and Darcy model assumed to be used. The considering dimensionless parameters are modified Rayleigh number, finite wall thickness, thermal conductivity ratio and the heat source length. The results are presented in terms of streamlines, isotherms and local and average Nusselt number. The results indicate that; the heat transfer can be enhanced by increasing the modified Rayleigh number. When the heat source length increases, the local Nusselt number of fluid phase increases, while, a reverse behavior of the local Nusselt number along the heat source is found. As the Rayleigh number increase, the local Nusselt number for both fluid and solid phase increases, therefore, the heat transfer rate will be enhanced. On the other hand, when the thermal conductivity ratio increase, the local Nusselt number for the fluid phase increases, and the local Nusselt number along the heated wall decreases.

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Role of entropy generation on thermal management during natural convection in tilted porous square cavities

Cited by 25 publications

References 56 publications

Entropy generation in thermal systems with solid structures – A concise review

Entropy generation in thermal systems with solid structures – A concise review

Analysis of entropy production vs . energy efficiencies during natural convection in porous trapezoidal cavities exposed to various thermal ambience

Numerical investigation of conjugate natural convection heat transfer in a square porous cavity heated partially from left sidewall

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