Results 11 to 20 of about 54,636 (287)

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 due to the conduit component.
Bastian Schmandt, Heinz Herwig
openaire   +3 more sources

Entropy Generation Minimization Theoretical Analysis for External Flow Around Horizontal Cylinder at low Reynold Number [PDF]

open access: yesEngineering and Technology Journal, 2018
The minimization of entropy generation is a helpful method to design optimum thermal system, and find an expression for entropy generation at several ranges of Reynolds number for heat transfer and friction flow irreversibility is a good way to achieve ...
Louay Mahdi
doaj   +1 more source

Entropy generation rate minimization for sulfur trioxide decomposition membrane reactor

open access: yesEnergy Reports, 2022
Sulfuric acid decomposition is the critical reaction in sulfur-iodide thermochemical cycle to produce oxygen. Sulfuric acid can decompose spontaneously into sulfur trioxide (SO3) and water, and SO3 continues to decompose into oxygen and sulfur dioxide ...
Rui Kong   +4 more
doaj   +1 more source

Entropy Generation Minimization of Two-Phase Flow Irreversibilities in Hydrocarbon Reservoirs

open access: yesEnergies, 2023
The efficient use of available energy in hydrocarbon extraction processes is essential to reducing overall emissions in the petroleum industry. The inefficient design of an extraction process leads to higher emissions per unit mass of hydrocarbon ...
Murtada A. Elhaj   +3 more
doaj   +1 more source

Entropy Analysis of the Thermal Convection of Nanosuspension within a Chamber with a Heat-Conducting Solid Fin

open access: yesEntropy, 2022
Heat transport augmentation in closed chambers can be achieved using nanofluids and extended heat transfer surfaces. This research is devoted to the computational analysis of natural convection energy transport and entropy emission within a closed region,
Xuan Hoang Khoa Le   +3 more
doaj   +1 more source

Entropy Generation Optimization in Multidomain Systems: A Generalized Gouy-Stodola Theorem and Optimal Control. [PDF]

open access: yesEntropy (Basel)
The paper considers an extended interpretation of the second law of thermodynamics and its implications to power conversion optimization in multidomain systems.
Richter H, Fathizadeh M, Kaptain T.
europepmc   +2 more sources

Optimization of heat sink for thyristor using particle swarm optimization

open access: yesResults in Engineering, 2019
The objective of this work is to optimize the geometry of the heat sink, which improves the performance. The geometrical parameter chosen for optimization is fin gap. The heat sink is under the condition of natural convection.
Veerasamarthswamy S. Bhandari   +1 more
doaj   +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

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