Results 271 to 280 of about 5,740,500 (299)

Entropy generation rate optimisation for profiled endwall design for axial turbines

Proceedings of Global Power & Propulsion Society
This paper investigates the formulation of the optimal objective function for aerodynamic design of turbomachinery using genetic algorithms (GA) supported by Computational Fluid Dynamics (CFD). The aim is to outline entropy generation rate minimisation as the most suitable objective function for improving turbomachinery. To this end, the calculation of
Pedro A. Martinez-Castro, Richard J. Williams, Grant L. Ingram   +2 more
openaire   +1 more source

Effects of design parameters on entropy generation rate of sulphuric acid decomposition process

International Journal of Ambient Energy, 2019
Based on the finite-time thermodynamics, the sulphuric acid (H2SO4) decomposition process (SADP) is investigated in this paper.
Chao Wang, Shaojun Xia, Lingen Chen, Yanlin Ge, Lei Zhang, Huijun Feng   +5 more
openaire   +1 more source

Analysis of entropy generation rate inside the stack of standing-wave thermoacoustic refrigerator

AIP Conference Proceedings, 2012
Considering from the second law of thermodynamics, the equation for entropy generation rate near a single-plate, representative of the stack inside thermoacoustic refrigerators was derived in this paper. It indicates that entropy generation is produced due to heat transfer in the x-y direction of finite temperature gradients and fluid friction ...
Xiujuan Xie, Gang Gao, Qing Li
openaire   +1 more source

Some Remarks About the Computation of the Entropy Generation Rate in Turbomachinery

2009
accepted for publication ...
openaire   +2 more sources

Entropy generation rate for a mechatronics system

International Journal of Exergy, 2017
openaire   +1 more source

Entropy generation rate in a mechanical system subjected to a damped oscillation

International Journal of Exergy, 2015
M. Sunar, A.Z. Sahin, B.S. Yilbas
openaire   +1 more source

Entropy generation of nanofluid and hybrid nanofluid flow in thermal systems: A review

Journal of Molecular Liquids, 2020
Gabriela Huminic, Angel Huminic
exaly  

3-D Numerical calculation of the local entropy generation rates in a radial compressor stage

2005
The flow field in a low-ns radial compressor stage is computed by means of a LES simulation performed with a commercial CFD package. Radial and tangential secondary flows are identified both in the rotor and in the diffuser. In the latter, a regime of transient stall with a blockage region oscillating between the two sidewalls is observed.
IANDOLI C. L, SCIUBBA, Enrico
openaire   +2 more sources

Entropy generation vs energy efficiency for natural convection based energy flow in enclosures and various applications: A review

Renewable and Sustainable Energy Reviews, 2017
Pratibha Biswal, Tanmay Basak
exaly  

Effect of aspect ratio on entropy generation in a rectangular cavity with differentially heated vertical walls

International Communications in Heat and Mass Transfer, 2008
Gamze Gediz Ilis, Moghtada Mobedi, Bengt Sunden   +2 more
exaly