Results 251 to 260 of about 312,386 (294)

Entropy Generation Analysis of Microchannel Heat

Volume 9: Heat Transfer, Fluid Flows, and Thermal Systems, Parts A, B and C, 2009
Analytical solutions for entropy generation rate distribution associated with heat transfer and fluid friction in microchannel heat sinks are examined. Microchannel heat sinks are modeled as a porous medium through which fluid flows. Analytical solutions are obtained by using velocity and temperature distributions of microchannel heat sinks, which are ...
Jaehoon Jung, Sung Jin Kim
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Entropy generation reduction through chemical pinch analysis

Applied Thermal Engineering, 2003
The pinch analysis (PA) concept emerged, late ‘80s, as one of the methods to address the energy management in the new era of sustainable development. It was derived from combined first and second law analysis, as a technique ensuring a better thermal integration, aiming the minimization of entropy production or, equivalently, exergy destruction by heat
Lavric, Vasile, Baetens, D., Plesu, Valentin, De Ruyck, Jacques   +3 more
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Entropy generation analysis of magnetohydrodynamic induction devices

Journal of Physics D: Applied Physics, 1999
Magnetohydrodynamic (MHD) induction devices such as electromagnetic pumps or electric generators are analysed within the approach of entropy generation. The flow of an electrically-conducting incompressible fluid in an MHD induction machine is described through the well known Hartmann model.
Hugo Salas, Sergio Cuevas, Mariano López de Haro   +2 more
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On the Kolmogorov-like generalization of Tsallis entropy, correlation entropies and multifractal analysis

Journal of Mathematical Physics, 2002
The generalization à la Kolmogorov of Tsallis entropy, introduced by the authors in a previous work [J. Math. Phys. 37, 4480 (1996)], is revisited. Invariance properties are pointed out under weaker conditions than before. This result leads us to wonder if Tsallis entropy at the Kolmogorov abstraction level brings new information with respect to the ...
Mesón, Alejandro M., Vericat, Fernando
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Analysis of time series through complexity–entropy curves based on generalized fractional entropy

Nonlinear Dynamics, 2019
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Wang, Yuanyuan, Shang, Pengjian, Liu, Zhengli   +2 more
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Entropy generation analysis as a design tool—A review

Renewable and Sustainable Energy Reviews, 2015
Abstract There is an acknowledged growing need for efficient and sustainable systems that use available energy resources in an “optimal” (including constraints) way. Such a goal cannot be effectively achieved without taking into account the limits posed by the second law of thermodynamics.
Sciacovelli, Adriano, Verda, Vittorio, SCIUBBA, Enrico   +2 more
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Generalized entropy plane based on permutation entropy and distribution entropy analysis for complex time series

Physica A: Statistical Mechanics and its Applications, 2019
Abstract Entropy is an accessible way to work as a measure of the irregularity and the uncertainty between the predicting knowledge and the given time series. Statistical complexity measure (SCM) combining Shannon entropy and the extensive Jensen–Shannon divergence provides important additional information regarding the peculiarities of the ...
Yimei Dai, Jiayi He, Yue Wu, Shijian Chen, Pengjian Shang   +4 more
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Entropy generation analysis of laser evaporative heating

Exergy, An International Journal, 2002
Abstract Laser pulse heating offers considerable advantages over the conventional heating methods. This is due to their operational precision and local treatment. In order to improve the energy efficient processing, entropy analysis of the laser heating is essential.
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Landslide Stability Analysis Based on Generalized Information Entropy

2009 International Conference on Environmental Science and Information Application Technology, 2009
Landslide is a kind of serious geologic disaster. In the viewpoint of system theory, the landslides may be regarded as a nonlinear open system, and they are ceaselessly exchanging information and energy with their surrounding environment and inside of themselves.
Shi Yufeng, Jin Fengxiang
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Analysis of Entropy Generation in Annular Porous Duct

Transport in Porous Media, 2015
This paper presents an analytical solution of the velocity and temperature fields in terms of the modified Bessel functions by including the viscous as well as the Darcy dissipations of a fully developed viscous and incompressible fluid, flowing between horizontal concentric annular ducts filled with a saturated porous medium.
Shyam Lal Yadav, A. K. Singh
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