p.615
p.621
p.627
p.631
p.636
p.642
p.650
p.655
p.659
Improving the Efficiency of a Hydro-Turbine System by Vortex Generators
Abstract:
This paper studies the effect of vortex generators on hydro-turbine working performances. The study was carried out on a hydro-turbine system provided by Waterpumps Oy, Finland. First, the performance of the hydro-turbine system was analyzed with a CFD solver under different working conditions. Then, the hydro-turbine performance was examined with several vortex generators installed uniformly on the inside wall of the draft tube near its inlet. The turbine system’s efficiencies were compared for cases with and without vortex generators. Results show that turbine performs better when there are vortex generators installed in the draft tube of which the pressure recovery factor is much higher.
Info:
Periodical:
Pages:
636-641
Citation:
Online since:
October 2011
Authors:
Price:
Сopyright:
© 2012 Trans Tech Publications Ltd. All Rights Reserved
Share:
Citation: