Results 21 to 30 of about 312,386 (294)
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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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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The Exergy Losses Analysis in Adiabatic Combustion Systems including the Exhaust Gas Exergy
Entropy, 2022 The entropy generation analysis of adiabatic combustion systems was performed to quantify the exergy losses which are mainly the exergy destroyed during combustion inside the chamber and in the exhaust gases. The purpose of the present work was therefore:
Senda Agrebi +2 more
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Entropy generation analysisfor the design optimizationof solid oxide fuel cells [PDF]
, 2011 Purpose - The aim of this paper is to investigate performance improvements of a monolithic solid oxide fuel cell geometry through an entropy generation analysis.
Sciacovelli, Adriano, Verda, Vittorio
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Multivariate Generalized Multiscale Entropy Analysis [PDF]
Entropy, 2016 Multiscale entropy (MSE) was introduced in the 2000s to quantify systems’ complexity. MSE relies on (i) a coarse-graining procedure to derive a set of time series representing the system dynamics on different time scales; (ii) the computation of the sample entropy for each coarse-grained time series.
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Energies, 2021 A second law analysis in combustion systems is performed along with an exergy loss study by quantifying the entropy generation sources using, for the first time, three different approaches: a classical-thermodynamics-based approach, a novel turbulence ...
Senda Agrebi +5 more
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Heat transfer and second law analyses of forced convection in a channel partially filled by porous media and featuring internal heat sources [PDF]
, 2015 This paper provides a comprehensive study on the heat transfer and entropy generation rates in a channel partially filled with a porous medium and under constant wall heat flux.
Karimi, Nader +2 more
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Analysis of networks using generalized mutual entropies [PDF]
Physica A: Statistical Mechanics and its Applications, 2008 Abstract Generalized mutual entropy is defined for networks and applied in the analysis of complex network structures. The method is tested for the case of computer simulated scale-free networks, random networks, and their mixtures. The possible applications for real network analysis are discussed.
V. Gudkov, V. Montealegre
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Comprehensive Thermodynamic Analysis of He–Xe in Microchannels with Different Structures
Energies, 2023 He–Xe, with a 40 g/mol molar mass, is considered one of the most promising working media in a space-confined Brayton cycle. The thermodynamic performance of He–Xe in different configuration channels is investigated in this paper to provide a basis for ...
Zijian Sun +3 more
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Entropy, 2023 In this work, a numerical analysis of three different flat plate solar collectors was conducted using their entropy generation rates. Specifically, the Computational Fluid Dynamics (CFD) technique was used to compare the detailed performance of ...
J. J. Ramírez-Minguela +6 more
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