Entropy generation analysis in supercapacitor modules based on a three-dimensional coupled thermal model

Purpose The main purpose of this work is to arrive at a three-dimensional (3D) numerical solution on mixed convection in a cubic cavity with a longitudinally located triangular fin in different sides. Design/methodology/approach The 3D governing equations are solved via finite volume technique by writing a code in FORTRAN platform. The governing parameters are chosen as Richardson number, 0.01 ≤ Ri ≤ 10 and thermal conductivity ratio 0.01 ≤ Rc ≤ 100 for fixed parameters of Pr = 0.7 and Re = 100. Two cases are considered for a lid-driven wall from left to right (V+) and right to left (V−). Findings It is observed that entropy generation due to heat transfer becomes dominant onto entropy generation because of fluid friction. The most important parameter is the direction of the moving lid, and lower values are obtained when the lid moves from right to left. Originality The main originality of this work is to arrive at a solution of a 3D problem of mixed convection and entropy generation for lid-driven cavity with conductive triangular fin attachments.

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Three-Dimensional Thermal Model of a Lithium Ion Battery for Hybrid Mobile Working Machines: Determination of the Model Parameters in a Pouch Cell

IEEE Transactions on Energy Conversion ◽

10.1109/tec.2013.2255291 ◽

2013 ◽

Vol 28 (2) ◽

pp. 335-343 ◽

Cited By ~ 38

Author(s):

Kirill Murashko ◽

Juha Pyrhonen ◽

Lasse Laurila

Keyword(s):

Lithium Ion Battery ◽

Thermal Model ◽

Three Dimensional ◽

Lithium Ion ◽

Model Parameters ◽

Mobile Working

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A pseudo three-dimensional electrochemical-thermal model of a cylindrical LiFePO4/graphite battery

Applied Thermal Engineering ◽

10.1016/j.applthermaleng.2018.10.108 ◽

2019 ◽

Vol 147 ◽

pp. 450-463 ◽

Cited By ~ 20

Author(s):

J. Chiew ◽

C.S. Chin ◽

W.D. Toh ◽

Z. Gao ◽

J. Jia ◽

...

Keyword(s):

Thermal Model ◽

Three Dimensional

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Effects of Movable-Baffle on Heat Transfer and Entropy Generation in a Cavity Saturated by CNT Suspensions: Three-Dimensional Modeling

Entropy ◽

10.3390/e19050200 ◽

2017 ◽

Vol 19 (5) ◽

pp. 200 ◽

Cited By ~ 25

Author(s):

Abdullah Al-Rashed ◽

Walid Aich ◽

Lioua Kolsi ◽

Omid Mahian ◽

Ahmed Hussein ◽

...

Keyword(s):

Heat Transfer ◽

Entropy Generation ◽

Three Dimensional ◽

Three Dimensional Modeling ◽

Dimensional Modeling ◽

Cnt Suspensions

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The Effect of Stator-Rotor Hub Sealing Flow on the Mainstream Aerodynamics of a Turbine

Volume 6: Turbomachinery, Parts A and B ◽

10.1115/gt2006-90838 ◽

2006 ◽

Cited By ~ 24

Author(s):

Kevin Reid ◽

John Denton ◽

Graham Pullan ◽

Eric Curtis ◽

John Longley

Keyword(s):

Steady State ◽

Entropy Generation ◽

Flow Rate ◽

Three Dimensional ◽

Secondary Flows ◽

Flow Conditions ◽

Turbine Efficiency ◽

Turbine Performance ◽

Mainstream Flow ◽

Flow Interactions

An investigation into the effect of stator-rotor hub gap sealing flow on turbine performance is presented. Efficiency measurements and rotor exit area traverse data from a low speed research turbine are reported. Tests carried out over a range of sealing flow conditions show that the turbine efficiency decreases with increasing sealant flow rate but that this penalty is reduced by swirling the sealant flow. Results from time-accurate and steady-state simulations using a three-dimensional multi-block RANS solver are presented with particular emphasis paid to the mechanisms of loss production. The contributions toward entropy generation of the mixing of the sealant fluid with the mainstream flow and of the perturbed rotor secondary flows are assessed. The importance of unsteady stator wake/sealant flow interactions is also highlighted.

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