| Issue |
MATEC Web Conf.
Volume 115, 2017
XXXIII Siberian Thermophysical Seminar (STS-33)
|
|
|---|---|---|
| Article Number | 05001 | |
| Number of page(s) | 4 | |
| Section | Chapter 5 Heat and mass transfer in multiphase flows | |
| DOI | https://doi.org/10.1051/matecconf/201711505001 | |
| Published online | 10 July 2017 | |
Experimental study of the effect of air injection on the pressure pulsations in the hydro turbine flow path under different operating conditions
1 Siberian Federal University, 79 Svobodny Ave., 660041 Krasnoyarsk, Russia
2 Institute of Thermophysics, SB RAS, 1 Lavrentyev Ave., 630090, Novosibirsk, Russia
* Corresponding author: tov-andrey@yandex.ru
The paper presents an experimental study of oscillatory response in the Francis turbine of hydraulic unit. The experiment was performed on large-scale hydrodynamic test-bench with impeller diameter of 0.3 m. The effect of air injection on the intensity of pressure pulsations was studied at the different regimes in the hydraulic unit. It was revealed that air delivery into the flow path system of the turbine results in almost two-fold reduction of pressure pulsations, but for optimal regimes, there is an increase in pressure pulsations.
© The Authors, published by EDP Sciences, 2017
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