Experimental study of air delivery into water-conveyance system of the radial-axial turbine

Alexandra Maslennikova; Dmitry Platonov; Andrey Minakov; Dmitry Dekterev

doi:10.1051/epjconf/201715900032

EPJ

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Proceedings

Open Access

EPJ Web of Conferences 159, 00032 (2017)
https://doi.org/10.1051/epjconf/201715900032

Experimental study of air delivery into water-conveyance system of the radial-axial turbine

Alexandra Maslennikova¹, Dmitry Platonov¹^,2^*, Andrey Minakov¹^,2 and Dmitry Dekterev²

¹ Siberean Federal University, 79 Svobodny pr., 660041 Krasnoyarsk, Russia
² Institute of Thermophysics, SB RAS, 1 Lavrentyev pr., 630090, Novosibirsk, Russia

^* Corresponding author: platonov-08@yandex.ru

Published online: 25 October 2017

Abstract

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 maximum pressure pulsations in the hydraulic unit. It was revealed that air delivery into the water-conveyance system of the turbine results in almost two-fold reduction of pressure pulsations.

© The authors, published by EDP Sciences, 2017

This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).