Results 41 to 50 of about 11,283 (193)

Generation of entropy and forced convection of heat in a conduit partially filled with porous media- Local thermal non-equilibrium and exothermicity effects applied thermal engineering [PDF]

open access: yes, 2016
The performance of a two-dimensional, axisymmetric channel with porous inserts attached to the walls is analyzed from the perspective of the first and second laws of thermodynamics.
Karimi, Nader   +3 more
core   +1 more source

Efficiency at maximum power of low dissipation Carnot engines [PDF]

open access: yes, 2010
We study the efficiency at maximum power, $\eta^*$, of engines performing finite-time Carnot cycles between a hot and a cold reservoir at temperatures $T_h$ and $T_c$, respectively.
A. Bejan   +9 more
core   +2 more sources

Entropy generation for forced convection in a porous channel with isoflux or isothermal walls [PDF]

open access: yes, 2008
A numerical study is reported to investigate the entropy generation due to forced convection in a parallel plate channel filled by a saturated porous medium.
Hooman, Faegheh   +2 more
core   +1 more source

ANN‐Enabled Analysis of Nanoparticle Aggregation and Hall Effects on Ag‐H2O Nanofluid Flow Over a Spinning Disk With Convective Heating and Thermal Radiation

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT The exceptional characteristics of nanofluids have turned out to be a significant development in revolutionizing heat transfer mechanisms in several electronic cooling devices and industrial manufacturing processes. The present study deals with the investigation of the second law of thermodynamics applied to the steady MHD fluid flow above a ...
Dixita Sonowal, Bidyasagar Kumbhakar
wiley   +1 more source

Irreversibility characterization in nanoliquid flow with velocity slip and dissipation by a stretchable cylinder

open access: yesAlexandria Engineering Journal, 2021
Here we scrutinize magnetohydrodynamic mixed convection flow of viscous nanoliquid by a stretching cylinder. Heat flux, Joule heating and dissipation effect are examined in heat equation.
T. Hayat, Sohail A. Khan, A. Alsaedi
doaj   +1 more source

Heat transfer and second law analyses of forced convection in a channel partially filled by porous media and featuring internal heat sources [PDF]

open access: yes, 2015
This paper provides a comprehensive study on the heat transfer and entropy generation rates in a channel partially filled with a porous medium and under constant wall heat flux.
Karimi, Nader   +2 more
core   +1 more source

Entropy Generation Analysis due to Permeable Exponential Stretching in Boundary Layer Flows

open access: yesHeat Transfer, EarlyView.
ABSTRACT Entropy generation represents the irreversible loss of useful energy in thermal–fluid systems, directly reducing efficiency in applications, such as microelectronics cooling, nanofluid‐based heat exchangers, and polymer processing. This study investigates entropy generation in a two‐phase viscoelastic nanofluid flow over a permeable ...
Khodani Sherrif Tshivhi   +1 more
wiley   +1 more source

Second law analysis of magnetized Casson nanofluid flow in squeezing geometry with porous medium and thermophysical influence

open access: yesJournal of Taibah University for Science, 2021
This flow investigation analysed the entropy generation rate as an additional enrichment to the rate of heat transfer in Casson nanofluid flow between squeezing disks.
M. M. Rashidi   +4 more
doaj   +1 more source

Chemically Reacting Jeffrey Fluid Flow Over a Deformable Porous Layer with Entropy Generation Analysis

open access: yesInternational Journal of Applied Mechanics and Engineering, 2022
Entropy generation of a steady Jeffrey fluid flow over a deformable vertical porous layer is analysed with consideration of a first-order chemical reaction and thermal diffusion.
Utpal Jyoti Das
doaj   +1 more source

Second Law Analysis of Ion Slip Effect on MHD Couple Stress Fluid [PDF]

open access: yes, 2018
This paper is concerned with the numerical investigation of entropy generation in viscous incompressible MHD couple stress fluid in a rotating frame of reference.
Agboola, O.O.   +3 more
core  

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