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Energies 2014, 7(2), 1050-1065; doi:10.3390/en7021050
Article

Influence of Prewhirl Regulation by Inlet Guide Vanes on Cavitation Performance of a Centrifugal Pump

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Received: 30 November 2013; in revised form: 17 January 2014 / Accepted: 10 February 2014 / Published: 24 February 2014
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Abstract: The influence of prewhirl regulation by inlet guide vanes (IGVs) on a centrifugal pump performance is investigated experimentally and numerically. The experimental results show that IGVs can obviously change the head and increase the efficiency of the tested centrifugal pump over a wide range of flow rates. Although the cavitation performance is degraded, the variation of the cavitation critical point is less than 0.5 m. Movement of the computed three-dimensional streamlines in suction pipe and impeller are analyzed in order to reveal the mechanism how the IGVs realize the prewhirl regulation. The calculated results show that the influence of IGVs on the cavitation performance of centrifugal pump is limited by a maximum total pressure drop of 1777 Pa, about 7.6% of the total pressure at the suction pipe inlet for a prewhirl angle of 24°.
Keywords: centrifugal pump; IGVs; prewhirl regulation; performance; cavitation centrifugal pump; IGVs; prewhirl regulation; performance; cavitation
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Tan, L.; Zhu, B.; Cao, S.; Wang, Y.; Wang, B. Influence of Prewhirl Regulation by Inlet Guide Vanes on Cavitation Performance of a Centrifugal Pump. Energies 2014, 7, 1050-1065.

AMA Style

Tan L, Zhu B, Cao S, Wang Y, Wang B. Influence of Prewhirl Regulation by Inlet Guide Vanes on Cavitation Performance of a Centrifugal Pump. Energies. 2014; 7(2):1050-1065.

Chicago/Turabian Style

Tan, Lei; Zhu, Baoshan; Cao, Shuliang; Wang, Yuchuan; Wang, Binbin. 2014. "Influence of Prewhirl Regulation by Inlet Guide Vanes on Cavitation Performance of a Centrifugal Pump." Energies 7, no. 2: 1050-1065.


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