Results 41 to 50 of about 49,661 (296)

Leakage Evaluation by Virtual Entropy Generation (VEG) Method

open access: yesEntropy, 2017
Leakage through microscale or nanoscale cracks is usually hard to observe, difficult to control, and causes significant economic loss. In the present research, the leakage in a pipe was evaluated by the virtual entropy generation (VEG) method. In virtual
Zhichao Zhang   +5 more
doaj   +1 more source

Entropy Generation during Head-On Interaction of Premixed Flames with Inert Walls within Turbulent Boundary Layers

open access: yesEntropy, 2022
The statistical behaviours of different entropy generation mechanisms in the head-on interaction of turbulent premixed flames with a chemically inert wall within turbulent boundary layers have been analysed using Direct Numerical Simulation data.
Sanjeev Kr. Ghai   +3 more
doaj   +1 more source

Entropy generation in magnetohydrodynamic mixed convection flow over an inclined stretching sheet [PDF]

open access: yes, 2017
This research focuses on entropy generation rate per unit volume in magneto-hydrodynamic (MHD) mixed convection boundary layer flow of a viscous fluid over an inclined stretching sheet.
Ali, Saleh Alshomrani   +4 more
core   +1 more source

Entropy generation approach for evaluating energy dissipation and temperature rise to predict the fatigue life behaviour in magnesium alloy

open access: yesJournal of Materials Research and Technology, 2023
The objective of this present study is to use entropy generation to predict the fatigue life behaviour of magnesium alloy. As the energy dissipation rate directly correlates with material degradation and increases in temperature, the entropy generation ...
M.A. Fauthan, S. Abdullah, M.F. Abdullah
doaj   +1 more source

Maximum power, ecological function and efficiency of an irreversible Carnot cycle. A cost and effectiveness optimization [PDF]

open access: yes, 2007
In this work we include, for the Carnot cycle, irreversibilities of linear finite rate of heat transferences between the heat engine and its reservoirs, heat leak between the reservoirs and internal dissipations of the working fluid. A first optimization
Aragon-Gonzalez, G   +3 more
core   +3 more sources

Dissipation in intercluster plasma [PDF]

open access: yes, 2007
We discuss dissipative processes in strongly gyrotropic, nearly collisionless plasma in clusters of galaxies (ICM). First, we point out that Braginsky theory, which assumes that collisions are more frequent that the system's dynamical time scale, is ...
Braginskii S. I.   +5 more
core   +3 more sources

Thermal Analysis in Pipe Flow: Influence of Variable Viscosity on Entropy Generation

open access: yesEntropy, 2004
: Flow through pipes and heating situations find wide applications in industry. Depending on the fluid properties, temperature field in the pipe changes. This in turn results in thermodynamic irreversibility in the flow system.
Bekir Sami Yilbas   +1 more
doaj   +1 more source

Entropy generation analysisfor the design optimizationof solid oxide fuel cells [PDF]

open access: yes, 2011
Purpose - The aim of this paper is to investigate performance improvements of a monolithic solid oxide fuel cell geometry through an entropy generation analysis.
Sciacovelli, Adriano, Verda, Vittorio
core   +1 more source

Upacicalcet: A Novel Intravenous Calcimimetic Agent for Patients Undergoing Hemodialysis With Secondary Hyperparathyroidism

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Secondary hyperparathyroidism (SHPT) is a common complication in patients receiving maintenance dialysis, driven by calcium and phosphate metabolism disturbances. Calcimimetics are central to the management of SHPT by enhancing calcium‐sensing receptor sensitivity and reducing parathyroid hormone secretion.
Fumihiko Koiwa   +3 more
wiley   +1 more source

Effect of Thermal Radiation on the Entropy Generation of Hydromagnetic Flow Through Porous Channel [PDF]

open access: yes, 2016
In this study, effect of thermal radiation on the entropy generation rate of a hydromagnetic incompressible viscous flow through porous channel has been studied.
Gbadeyan, J.A.   +3 more
core  

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