Efficiency of Jet Pumps
Publication: Journal of Hydraulic Engineering
Volume 126, Issue 2
Abstract
A theoretical analysis and an experimental study on the efficiency of water jet pumps, where water is used for both the primary and secondary flows, are presented in this paper. The theoretical efficiency equations for such jet pumps were first derived based on one-dimensional formulation, and the theoretical maximum ideal efficiency of 100% was obtained. An experimental rig was designed and constructed to conduct the experimental study in which a commercial water jet pump was used. The effects of different area ratios of nozzle to mixing throat as well as different nozzle cross sections, which include square and triangular nozzles, on the jet pump performance were then investigated. The best nozzle cross section for the jet pump was found to be circular, and for high efficiency, the area ratio was found to be around 0.30.
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Information & Authors
Information
Published In
Journal of Hydraulic Engineering
Volume 126 • Issue 2 • February 2000
Pages: 150 - 156
History
Received: Jan 2, 1997
Published online: Feb 1, 2000
Published in print: Feb 2000
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