Hydrotechnical Construction

, Volume 13, Issue 3, pp 259–265 | Cite as

Selection of optimum typical proportions of ejectors for hydropower stations

  • M. L. Neminskii
Papers Experience with the Operation of Hydraulic Structures and their Equipment in Hydroelectric Plants


Taking into account the satisfactory agreement between the experimental and derived values of the relative head h, and also that the functions K=f(h) obtained by calculations on an ÉTsVM for both the suction and mixing regimes over a wide range of variation of the typical ejector proportions (K=0.1–0.5) agree closely with the same functions as determined from investigations carried out by other authors (M. Gubin, Yu. Kirillovskii, L. Podvidz, E. Sokolov, N. Zinger) for corresponding nozzle friction factors ζn [6] (Fig. 5), the following conclusions, are drawn:
  1. 1.

    The theoretical equation expressing the head-discharge characteristics of ejectors and the functions derived from it as base, using an electronic computer, which correlate their optimum geometric proportions and head characteristics, are verified by test data.

  2. 2.

    Selection of the optimum ejector proportions can be made with sufficient accuracy by using the functions proposed.



Energy Source Test Data Power Generation Power Engineer Renewable Energy Source 
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Literature cited

  1. 1.
    M. F. Gubin and Yu. A. Gornostaev, “Calculation of jet-pump operation in the technical water-supply system of hydroelectric station turbine-generator units,” Gidrotekh. Stroit., No. 1 (1971).Google Scholar
  2. 2.
    M. F. Gubin, Yu. N. Gornostaev, and K. N. Lyubitskii, Use of Ejectors in Hydropower Stations [in Russian], Énergiya, Moscow (1971).Google Scholar
  3. 3.
    Kh. Sh. Mustafin, “Analysis of a water ejector,” Gidrotekh. Stroit., No. 2 (1971).Google Scholar
  4. 4.
    Kh. Sh. Mustafin and M. L. Neminskii, Investigations of the Use of Ejectors in a Service Water-Supply System in Hydropower Stations [in Russian], Kuban Agricultural Institute (1974).Google Scholar
  5. 5.
    E. Ya. Sokolov and N. M. Zinger, Jet Equipment [in Russian], Énergiya, Moscow (1970).Google Scholar
  6. 6.
    M. L. Neminskii, Refinement of Relationship between Relative Geometric Proportions and Relative Head of an Ejector, Using an Electronic Digital Computer [in Russian], Trans, of Gidroproekt, No. 42 (1974).Google Scholar
  7. 7.
    Design Manual for Service Water-Supply Systems for Hydropower Stations, Gidroproekt, Moscow (1975).Google Scholar

Copyright information

© Plenum Publishing Corporation 1979

Authors and Affiliations

  • M. L. Neminskii

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