Experimental study of the effect of air injection on the pressure pulsations in the hydro turbine flow path under different operating conditions
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Автор:
Minakov, A. V.
Platonov, D. V.
Maslennikova, A. V.
Dekterev, D. A.
Коллективный автор:
Институт инженерной физики и радиоэлектроники
Кафедра теплофизики
Дата:
2017-07Журнал:
MATEC Web Conf.Квартиль журнала в Scopus:
без квартиляКвартиль журнала в Web of Science:
без квартиляБиблиографическое описание:
Minakov, A. V. Experimental study of the effect of air injection on the pressure pulsations in the hydro turbine flow path under different operating conditions [Текст] / A. V. Minakov, D. V. Platonov, A. V. Maslennikova, D. A. Dekterev // MATEC Web Conf.: XXXIII Siberian Thermophysical Seminar (STS-33). — 2017. — Т. 115.Аннотация:
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.