Unsteady Volumetric Entropy Generation Rate in Laminar Boundary Layers [PDF]
Entropy, 2006 The prediction of the entropy generation rate in laminar shear layers is treated as steady, even in the presence of high levels of free stream turbulence.
D. Hernon, E. J. Walsh
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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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Self-Organization, Entropy Generation Rate, and Boundary Defects: A Control Volume Approach. [PDF]
Entropy (Basel), 2021 Self-organization that leads to the discontinuous emergence of optimized new patterns is related to entropy generation and the export of entropy. Compared to the original pattern that the new, self-organized pattern replaces, the new features could involve an abrupt change in the pattern-volume. There is no clear principle of pathway selection for self-
Sekhar JA.
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Minimization of entropy generation rate in methanol steam reforming reactor
Case Studies in Thermal EngineeringThe methanol steam reforming (MSR) reaction is a prospective method in hydrogen generation because of its operability and high conversion efficiency. Most of the current thermodynamic studies involving MSR use classical thermodynamic methods, while fewer
Rui Kong +3 more
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Entropy Generation Rate Minimization for Methanol Synthesis via a CO2 Hydrogenation Reactor. [PDF]
Entropy (Basel), 2019 The methanol synthesis via CO2 hydrogenation (MSCH) reaction is a useful CO2 utilization strategy, and this synthesis path has also been widely applied commercially for many years. In this work the performance of a MSCH reactor with the minimum entropy generation rate (EGR) as the objective function is optimized by using finite time thermodynamic and ...
Li P, Chen L, Xia S, Zhang L.
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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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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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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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Non-equilibrium thermodynamic analysis of double diffusive, nanofluid forced convection in microreactors with radiation effects [PDF]
, 2017 This paper presents a theoretical investigation of the second law performance of double diffusive forced convection in microreactors with the inclusion of nanofluid and radiation effects.
Govone, Lilian +3 more
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Teaching Fluid Mechanics and Thermodynamics Simultaneously through Pipeline Flow Experiments
Fluids, 2019 Entropy and entropy generation are abstract and illusive concepts for undergraduate students. In general, students find it difficult to visualize entropy generation in real (irreversible) processes, especially at a mechanistic level.
Rajinder Pal
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