Results 241 to 250 of about 50,610 (294)

Entropy Generation Rate for a Peristaltic Pump

Journal of Non-Equilibrium Thermodynamics, 2009
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Souidi, Ferhat   +2 more
openaire   +1 more source

Entropy generation rate during laser pulse heating: Effect of laser pulse parameters on entropy generation rate

Optics and Lasers in Engineering, 2008
Laser pulse heating of solid surface and entropy generation during the heating process are considered. Time exponentially decaying pulse is accommodated in the analysis and the laser pulse parameter (β1/β2) resulting in minimum entropy generation rate is computed. Analytical solutions for temperature rise are presented and volumetric entropy generation
H. Al-Qahtani, B.S. Yilbas
openaire   +1 more source

Determination of LEDs degradation with entropy generation rate

Journal of Applied Physics, 2017
We propose a method to assess the degradation and aging of light emitting diodes (LEDs) based on irreversible entropy generation rate. We degraded several LEDs and monitored their entropy generation rate (Ṡ) in accelerated tests. We compared the thermoelectrical results with the optical light emission evolution during degradation.
Angel Cuadras   +2 more
openaire   +1 more source

The Measurement and Prediction of Boundary Layer Entropy Generation Rate

Fluids Engineering, 2003
In this paper hot wire measurements of the boundary layer velocity profiles at discrete locations along the suction surface of a turbine blade profile are presented. The measured aerodynamic data is transformed into thermodynamic data by way of the entropy function for the investigated Reynolds numbers of 76,000, 120,000 and 185,000 based on inlet ...
E. J. Walsh, M. R. D. Davies
openaire   +1 more source

Flow-Induced Endothelial Surface Reorganization and Minimization of Entropy Generation Rate

Journal of Biomechanical Engineering, 2004
Effects of hydrodynamic shear on the shape of the endothelial surface are examined based on evaluations of the rate of entropy generation at the cell surface. A linear solution of the flow over a sinusoidally varying endothelial surface is used to evaluate the entropy generation rate on the cell surface for which measured cell dimensions are available.
Haidong, Liu, Uichiro, Narusawa
openaire   +2 more sources

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