Results 31 to 40 of about 25,153,568 (292)

Entropy Generation Analysis of a Heat Exchanger for Precision Applications. [PDF]

open access: yesEntropy (Basel)
Process heating for sensitive fluids requires a sophisticated balance of efficiency and thermal control. This study assesses the efficiency of a singular active-surface flow box delivering high-precision, volumetric energy transport.
De Bonis MV   +3 more
europepmc   +2 more sources

Entropy generation analysisfor the design optimizationof solid oxide fuel cells [PDF]

open access: yes, 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   +3 more
core   +1 more source

Energy and entropy generation analysis in a supercapacitor for different operating conditions

open access: yes, 2022
Sustainability and efficiency are the key issues concerning performance and lifetime of supercapacitors. In this work, an entropy generation analysis is implemented for the first time in the supercapacitor cell, aiming at facilitating the design and ...
Kefa Cen   +11 more
core   +1 more source

Numerical studies for effect of geometrical parameters on water jet pump performance via entropy generation analysis

open access: yesJournal 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
doaj   +1 more source

Microgravity Spherical Droplet Evaporation and Entropy Effects [PDF]

open access: yes, 2023
Recent efforts to understand low-temperature combustion (LTC) in internal combustion engines highlight the need to improve chemical kinetic mechanisms involved in the negative temperature coefficient (aka cool flame) regime.
Depcik, Christopher
core   +1 more source

A numerical study of entropy generation on oldroyd-b nanofluid Flow past a riga plate

open access: yesJournal of Thermal Engineering, 2021
This study investigates entropy generation due to the unsteady boundary layer flow of an Oldroyd-B nanofluid past a Riga plate. The velocity, temperature and concentration fields are obtained and the flow equations solved numerically using the spectral ...
Zachariah Mbugua MBURU   +3 more
doaj   +1 more source

Quantum discord, thermal discord, and entropy generation in the minimum error discrimination strategy

open access: yes, 2019
We study the classical and quantum correlations in the minimum error discrimination (ME) of two non-orthogonal pure quantum states. In particular, we consider quantum discord, thermal discord and entropy generation.
Miguel Ángel Solís Prosser   +3 more
core   +2 more sources

Effectiveness of Entransy Dissipation Metric and Entropy Generation Units in The Design of Fin-Tube Heat Exchangers [PDF]

open access: yes, 2012
Several techniques and metrics based on the Second Law of Thermodynamics have been used in the past for the analysis of heat exchangers. The terms used for these techniques include irreversibility analysis, entropy generation minimization, exergy ...
Aute, Vikrant   +4 more
core   +1 more source

Comprehensive Thermodynamic Analysis of He–Xe in Microchannels with Different Structures

open access: yesEnergies, 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
doaj   +1 more source

Performance Comparison of Different Flat Plate Solar Collectors by Means of the Entropy Generation Rate Using Computational Fluid Dynamics

open access: yesEntropy, 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
doaj   +1 more source

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