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Experimental Determination of Entropy Generation Rate Using Particle Image Velocimetry

ASME 2015 13th International Conference on Nanochannels, Microchannels, and Minichannels, 2015
As Particle Image Velocimetry (PIV) matures, new techniques have been developed for flow analysis that exploit PIV. One such recent use is in determining the underlying mechanisms of energy losses in fluidic systems. Often times, a First Law of Thermodynamics (FLT) approach is taken to determine the energy losses in a given fluidic system.
James Stewart +4 more
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Entropy generation rate in uniform heat generating area cooled by conducting paths: criterion for rating the performance of constructal designs

Energy Conversion and Management, 2004
Constructal theory uses a tree network of conducting paths to discharge the heat generated in a uniform heat generating area to a heat sink located on its border. Constructal theory aims to decrease the global thermal resistance, in other words, to improve the heat flow performance of the heat generating area by increasing the complexity of the tree ...
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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
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Some Remarks About the Computation of the Entropy Generation Rate in Turbomachinery

2009
accepted for publication ...
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Internal unsteady flow characteristics of centrifugal pump based on entropy generation rate and vibration energy