Performance of a centrifugal pump running in inverse mode

J Fernández, E Blanco, J Parrondo, M. T. Stickland, T. J. Scanlon

Research output: Contribution to journalArticle

59 Citations (Scopus)
259 Downloads (Pure)

Abstract

This paper presents the functional characterization of a centrifugal pump used as a turbine. It shows the characteristics of the machine involved at several rotational speeds, comparing the respective flows and heads. In this way, it is possible to observe the influence of the rotational speed on efficiency, as well as obtaining the characteristics at constant head and runaway speed. Also, the forces actuating on the impeller were studied. An uncertainty analysis was made to assess the accuracy of the results. The research results indicate that the turbine characteristics can be predicted to some extent from the pump characteristics, that water flows out of the runner free of swirl flow at the best efficiency point, and that radial stresses are lower than in pump mode.
Original languageEnglish
Pages (from-to)265-271
Number of pages6
JournalProceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy
Volume218
Issue number4
DOIs
Publication statusPublished - 1 Jun 2004

Keywords

  • turbomachinery
  • inverse mode
  • forces
  • constant head
  • power engineering
  • mechanical engineering

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