A quasi-steady performance prediction model for dynamic characteristics of a volute pump

Thanapandi, P and Prasad, R (1994) A quasi-steady performance prediction model for dynamic characteristics of a volute pump. In: Proceedings of the Institution of Mechanical Engineers - Part A: Journal of Power and Energy, 208 (A1). pp. 47-58.

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Abstract

A performance prediction model generally applicable for volute-type centrifugal pumps has been extended to predict the dynamic characteristics of a pump during its normal starting and stopping periods. Experiments have been conducted on a volute pump with different valve openings to study the dynamic behaviour of the pump during normal start-up and stopping, when a small length of discharge pipeline is connected to the discharge flange of the pump. Such experiments have also been conducted when the test pump was part of a hydraulic system, an experimental rig, where it is pumping against three similar pumps, known as supply pumps, connected in series, with the supply pumps kept idle or running. Instantaneous rotational speed, flowrate, and delivery and suction pressures of the pump were recorded and it was observed in all the tested cases that the change of pump behaviour during the transient period was quasi-steady, which validates the quasi-steady approach presented in this paper. The nature of variation of parameters during the transients has been discussed. The model-predicted dynamic head-capacity curves agree well with the experimental data for almost all the tested cases.

Item Type:	Journal Article
Publication:	Proceedings of the Institution of Mechanical Engineers - Part A: Journal of Power and Energy
Publisher:	Professional Engineering Publishing
Additional Information:	Copyright of this article belongs to Professional Engineering Publishing.
Department/Centre:	Division of Mechanical Sciences > Mechanical Engineering
Date Deposited:	03 Jun 2011 05:29
Last Modified:	03 Jun 2011 05:29
URI:	http://eprints.iisc.ac.in/id/eprint/36241

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