Performance evaluation of a centrifugal pump system under variable speed operation

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dc.contributor.authorKuhn, C.en_ZA
dc.contributor.authorRandewijk, P. J.en_ZA
dc.date.accessioned2014-07-06T17:27:24Z
dc.date.available2014-07-06T17:27:24Z
dc.date.issued2013
dc.descriptionCITATION: Kuhn, C, & Randewijk, P. J. 2013. Performance evaluation of a centrifugal pump system under variable speed operation, in Proceedings of the Southern African Universities Power Engineering Conference, SAUPEC, 31 January and 1 February 2013, North-West University, Potchefstroom, South Africa, pp. 116-121.
dc.descriptionThe original publication is available at https://www.saiee.org.za
dc.description.abstractENGLISH ABSTRACT: The aim of this research project investigates the performance of a centrifugal pump system under variable speed operation. Operating a pump under variable speed operation brings the affinity laws into play. These equations were firstly investigated before it was applied to the overall investigation of pump performance. Distinction is made between three types of systems, a system with high static head (lift system), the second system is a high loss system with no- or little static head and the third is a mixed type system. The “correct” affinity laws were then used to apply to a system with a minimum pressure requirement. The theory proved accurate and was confirmed by practical findings. It has been found that both the pump and the VSD experience a slight drop in efficiency for small changes in speed. A maximum of 5% drop occurred in the efficiency of the pump for a 30% reduction in speed. Further reductions in speed resulted in a more rapid drop in efficiency.
dc.description.versionPublisher's version
dc.format.extent6 pagesen_ZA
dc.identifier.citation121
dc.identifier.citationKuhn, C, & Randewijk, P. J. 2013. Performance evaluation of a centrifugal pump system under variable speed operation, in Proceedings of the Southern African Universities Power Engineering Conference, SAUPEC, 31 January and 1 February 2013, North-West University, Potchefstroom, South Africa, pp. 116-121.
dc.identifier.urihttp://hdl.handle.net/10019.1/89307
dc.languageen_ZAen_ZA
dc.publisherSAIEEen_ZA
dc.rights.holderSAIEEen_ZA
dc.subjectVariable speed drivesen_ZA
dc.subjectPumping machineryen_ZA
dc.subjectCentrifugal pumpsen_ZA
dc.titlePerformance evaluation of a centrifugal pump system under variable speed operationen_ZA
dc.typeConference Paperen_ZA
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