Results 11 to 20 of about 50,824 (251)
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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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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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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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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Computation and Estimation of Generalized Entropy Rates for Denumerable Markov Chains [PDF]
IEEE Transactions on Information Theory, 2011 We study entropy rates of random sequences for general entropy functionals including the classical Shannon and Renyi entropies and the more recent Tsallis and Sharma-Mittal ones. In the first part, we obtain an explicit formula for the entropy rate for a large class of entropy functionals, as soon as the process satisfies a regularity property known in
Gabriela Ciuperca +2 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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