Results 11 to 20 of about 268,561 (292)
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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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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Continuum Breakdown Parameter Based on Entropy Generation Rates [PDF]
41st Aerospace Sciences Meeting and Exhibit, 2003 The dimensionless ratio of the mean free path to a reference length scale typically quantifies the extent to which the continuum assumption in fluid flow dynamics breaks down. However, ambiguity exists in the choice of an appropriate length scale and some researchers have suggested a local parameter, like the Knudsen number, for quantifying continuum ...
Camberos, Jose, Chen, Po-Heng
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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, 2018 Entropy generation in thermal convection with differentially discrete heat boundary conditions at various Rayleigh numbers (Ra) are numerically investigated using the lattice Boltzmann method.
Zhengdao Wang, Yikun Wei, Yuehong Qian
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Energy Science & Engineering, 2023 Complex implicit expressions and many intermediate parameters are not conducive to the application of entropy generation optimization to the performance of thermal and energy systems from component and system perspectives.
Chenzhi Ju +5 more
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A study of the local entropy generation rate in a porous media burner
Archives of Mechanics, 2020 In this paper, the work and performance of the premixed methane-air porous axisymmetrical burner have firstly been simulated numerically using the CFD tools.
I. Mohammadi, J.A. Esfahani, K.C. Kim
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A thermodynamic analysis of forced convection through porous media using pore scale modeling [PDF]
, 2016 The flow thorough porous media is analyzed from a thermodynamic perspective, with a particular focus on the entropy generation inside the porous media, using a pore scale modeling approach.
Karimi, Nader +3 more
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Entropy generation of nanofluid flow in a microchannel heat sink
Results in Physics, 2018 Present study aims to investigate the effects of the presence of nano sized TiO2 particles in the base fluid on entropy generation rate in a microchannel heat sink.
Eyuphan Manay +2 more
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