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Model based analysis of the time scales associated to pump start-ups

Article dans une revue avec comité de lecture
Author
CAIGNAERT, Guy
DAUPHIN-TANGUY, Geneviève
410272 Centre de Recherche en Informatique, Signal et Automatique de Lille - UMR 9189 [CRIStAL]
ccDAZIN, Antoine
531216 Laboratoire de Mécanique des Fluides de Lille - Kampé de Fériet [LMFL]

URI
http://hdl.handle.net/10985/15117
DOI
10.1016/j.nucengdes.2015.07.045
Date
2015
Journal
Nuclear Engineering and Design

Abstract

The paper refers to a non dimensional analysis of the behaviour of a hydraulic system during pump faststart-ups. The system is composed of a radial flow pump and its suction and delivery pipes. It is modelled using the bond graph methodology. The prediction of the model is validated by comparison to experimental results. An analysis of the time evolution of the terms acting on the total pump pressure is proposed. It allows for a decomposition of the start-up into three consecutive periods. The time scales associated with these periods are estimated. The effects of parameters (angular acceleration, final rotation speed, pipe length and resistance) affecting the start-up rapidity are then explored.

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