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Centrifugal pump transient characteristics and analysis using the method of characteristics

Thanapandi, P and Prasad, Rama (1995) Centrifugal pump transient characteristics and analysis using the method of characteristics. In: International Journal of Mechanical Sciences, 37 (1). pp. 77-89.

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Official URL: http://dx.doi.org/10.1016/0020-7403(95)93054-A


A theoretical and experimental study has been carried out on the transient characteristics of a centrifugal pump during 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 pipe line is connected to discharge flange of the pump. Similar experiments have also been conducted when the test pump was part of a hydraulic system to study the system effect on the transient characteristics. Instantaneous rotational speed, flowrate, and delivery and suction pressures of the pump are recorded and it is observed in ail the tested cases that the change of pump behaviour during the transient period is quasi-steady. The dynamic characteristics of the pump have been analysed by a numerical model using the method of characteristics. The model is presented and the results are compared with the experimental data. As the model contains speed acceleration and unsteady discharge terms, the model can be applied for analyses of purely unsteady cases where the pump dynamic characteristics show considerable departure from their steady-state characteristics.

Item Type: Journal Article
Publication: International Journal of Mechanical Sciences
Publisher: Elsevier Science
Additional Information: Copyright of this article belongs to Elsevier Science.
Department/Centre: Division of Mechanical Sciences > Civil Engineering
Date Deposited: 27 Apr 2011 07:07
Last Modified: 27 Apr 2011 07:07
URI: http://eprints.iisc.ac.in/id/eprint/37225

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