Results 21 to 30 of about 735,606 (326)
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 generation rate minimization for steam methane reforming reactor heated by molten salt
, 2020 Traditional steam methane reforming facilities for producing hydrogen not only consume a large amount of natural gas, but also emit a lot of greenhouse gas.
Penglei Li +6 more
semanticscholar +1 more source
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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Entropy characterisation of overstressed capacitors for lifetime prediction [PDF]
, 2016 We propose a method to monitor the ageing and damage of capacitors based on their irreversible entropy generation rate. We overstressed several electrolytic capacitors in the range of 33 µF–100 µF and monitored their entropy generation rate View the ...
Cuadras Tomàs, Àngel +2 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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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 analysis in an evaporative air-cooled heat exchanger
Journal of Thermal Science and Technology, 2014 In the present study, air-side entropy generation rate for an evaporative air-cooled heat exchanger has been investigated using thermodynamic second-law analysis.
Shoeib MAHJOUB +3 more
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Frontiers in Energy Research, 2023 Centrifugal pumps are frequently utilized in general machinery, but they have issues with low efficiency, unstable operation, and high-power consumption in actual engineering, making performance improvements necessary.
Handong Qi +9 more
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