Results 11 to 20 of about 55,023 (282)

Diffuser and Nozzle Design Optimization by Entropy Generation Minimization [PDF]

open access: yesEntropy, 2011
Diffusers and nozzles within a flow system are optimized with respect to their wall shapes for a given change in cross sections. The optimization target is a low value of the head loss coefficient K, which can be linked to the overall entropy generation ...
Bastian Schmandt, Heinz Herwig
doaj   +2 more sources

Entropy Generation Minimization Analysis of Active Magnetic Regenerators [PDF]

open access: yesAnais da Academia Brasileira de Ciências, 2017
A performance assessment of active magnetocaloric regenerators using entropy generation minimization is presented. The model consists of the Brinkman-Forchheimer equation to describe the fluid flow and coupled energy equations for the fluid and solid ...
PAULO V. TREVIZOLI, JADER R. BARBOSA JR
doaj   +4 more sources

Multi-Objective Constructal Design for Square Heat-Generation Body with “Arrow-Shaped” High-Thermal-Conductivity Channel

open access: yesEnergies, 2022
Based on the square heat-generation body (HGB) with “arrow-shaped” high-thermal-conductivity channel (HTCC) model established in the previous literature, we performed multi-objective optimization (MOO) with maximum temperature difference (MTD ...
Hongwei Zhu   +4 more
doaj   +2 more sources

Entropy Generation Minimization of a Thermoelectric Cooler [PDF]

open access: yesThe Open Thermodynamics Journal, 2008
In the present work, we develop a theoretical analysis to minimize the entropy generation of a thermo-electric cooler (TEC), which can be used to cool a processor. We have applied an analysis of first and second law of the Thermo- dynamics to a TEC. We consider the entropy generation equation as the objective function and the first law as a restric ...
F. Gutierrez, F. Mendez
openaire   +1 more source

Convergence of generalized entropy minimizers in sequences of convex problems [PDF]

open access: yes2016 IEEE International Symposium on Information Theory (ISIT), 2016
Integral functionals based on convex normal integrands are minimized over convex constraint sets. Generalized minimizers exist under a boundedness condition. Sequences of the minimization problems are studied when the constraint sets are nested. The corresponding sequences of generalized minimizers are related to the minimization over limit convex sets.
Csiszár, Imre, Matus, Frantisek
openaire   +2 more sources

Miller cycle analysis using EGM [PDF]

open access: yes, 2005
The Entropy Generation Minimization (EGM) method is based on the analysis by three sciences (thermodynamics, fluid flow and heat transfer) of the different processes that may occur in a system or in an equipment.
Martins, Jorge, Ribeiro, Bernardo Sousa
core   +1 more source

Second-law analysis of fluid flow over an isothermal moving wedge

open access: yesAlexandria Engineering Journal, 2014
In this study, entropy generation minimization (EGM) was employed to optimize fluid flow and heat transfer over a moving wedge. Governing partial differential equations including continuity, momentum and energy are reduced to ordinary ones using ...
F. Hedayati, A. Malvandi, D.D. Ganji
doaj   +1 more source

Design optimization of pin fin geometry using particle swarm optimization algorithm. [PDF]

open access: yesPLoS ONE, 2013
Particle swarm optimization (PSO) is employed to investigate the overall performance of a pin fin.The following study will examine the effect of governing parameters on overall thermal/fluid performance associated with different fin geometries, including,
Nawaf Hamadneh   +3 more
doaj   +1 more source

A novel comparative case study of entropy generation for natural convection flow of proportional-Caputo hybrid and Atangana baleanu fractional derivative

open access: yesScientific Reports, 2021
This article focused on the comparative study of entropy generation for natural convection flow of the newly proportional Caputo hybrid and Atangana baleanu fractional derivative.
Dolat khan   +2 more
doaj   +1 more source

Self-adaptation of mutation distribution in evolutionary algorithms [PDF]

open access: yes, 2007
This paper is posted here with permission from IEEE - Copyright @ 2007 IEEEThis paper proposes a self-adaptation method to control not only the mutation strength parameter, but also the mutation distribution for evolutionary algorithms. For this purpose,
Tinos, R, Yang, S
core   +2 more sources

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