Results 11 to 20 of about 735,606 (326)
Prediction of Fatigue Crack Growth Rate Based on Entropy Generation [PDF]
Entropy, 2019 This paper presents the assessment of fatigue crack growth rate for dual-phase steel under spectrum loading based on entropy generation. According to the second law of thermodynamics, fatigue crack growth is related to entropy gain because of its irreversibility.
Roslinda Idris +3 more
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ENTROPY GENERATION RATE IN A MICROSCALE THIN FILM
Journal of Thermal Engineering, 2019 This paper presents a new formulation of the rate of entropy generation in thin films whose thickness is of the order of the mean-free-path or less. In this relation, an expression for the gradient of the equivalent equilibrium temperature is proposed that is a function of the gradient of the phonon intensity at any point inside the thin film.
S. Mansoor
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Minimum Entropy Generation Rate and Maximum Yield Optimization of Sulfuric Acid Decomposition Process Using NSGA-II. [PDF]
Entropy (Basel), 2020 Based on the theory of finite-time thermodynamics (FTT), the effects of three design parameters, that is, inlet temperature, inlet pressure, and inlet total mole flow rate, of a tubular plug-flow sulfuric acid decomposition reactor on the total entropy ...
Sun M, Xia S, Chen L, Wang C, Tang C.
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Time Evolution Features of Entropy Generation Rate in Turbulent Rayleigh-Bénard Convection with Mixed Insulating and Conducting Boundary Conditions. [PDF]
Entropy (Basel), 2020 Time evolution features of kinetic and thermal entropy generation rates in turbulent Rayleigh-Bénard (RB) convection with mixed insulating and conducting boundary conditions at Ra = 109 are numerically investigated using the lattice Boltzmann method. The
Wei Y, Shen P, Wang Z, Liang H, Qian Y.
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Entropy, 2013 This study deals with the combined effects of Navier Slip, Convective cooling, variable viscosity, and suction/injection on the entropy generation rate in an unsteady flow of an incompressible viscous fluid flowing through a channel with permeable walls.
Oluwole Daniel Makinde +1 more
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Entropy Generation Rate in a Chemically Reacting System [PDF]
Journal of Energy Resources Technology, 1993 Abstract For a nonchemical-equilibrium state of an isolated system A that has r constituents with initial amounts na = {n1a, n2a, …, nra}, and that is subject to τ chemical reaction mechanisms, temperature, pressure, and chemical potentials cannot be defined.
Gyftopoulos E. P., BERETTA, Gian Paolo
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Machines, 2023 Stability and efficiency are the two most important performance indicators of highly loaded aviation axial compressors; however, they often cannot be achieved simultaneously.
Jingyuan Ma, Feng Lin
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Heat Transfer and Entropy Generation Evaluation on Molten Salt Tank Foundation with Internal Water Cooling [PDF]
E3S Web of Conferences, 2020 Molten salt tanks are used to store and release thermal energy. Large heat leakage through the molten salt tank foundation to the ground and high temperature of the foundation are detrimental to long-term operation safety.
Sun Shien +4 more
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Analysis of NO Formation and Entropy Generation in a Reactive Flow
Aerospace, 2022 A comprehensive investigation of turbulent combustion is accomplished to study the relationship between nitrogen oxide (NO) formation and entropy generation distribution in a non-premixed propane combustion. The radiation heat transfer and combustion are
Milad Mohammadi +1 more
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Journal of Mechanical Engineering and Sciences, 2023 This paper presented an implementation of entropy generation analysis in the main flow field of a water jet pump via the CFD method. This study aimed to identify the inefficient location of energy conversion and to analyse entropy generation sources in ...
Muhammad Penta Helios +1 more
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