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

type de publication	article in an international journal with refereeing comitee
date de publication	2015
auteur(s)	Dazin Antoine; Caignaert Guy; Dauphin Tanguy Genevieve
journal (abréviation)	Nuclear Engineering and Design (Nucl Eng Des)
volume (numéro)	293

pages	218 – 227
résumé	The paper refers to a non dimensional analysis of the behaviour of a hydraulic system during pump fast start-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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