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Hydraulic model studies of a hydroelectric unit under operating conditions at hydroelectric/state area hydroelectric plants

  • Investigations and Experiments
  • Published:
Hydrotechnical Construction Aims and scope

Conclusions

  1. 1.

    The trend toward convergence of optimal efficiency zones with respect to reduced rotational speed with decreasing\(n_{s_p } \) is confirmed.

  2. 2.

    Reverse flows in the zone between the impeller and guide apparatus and prior to the impeller determine the low level of efficiency and significant instability during the operation of a turbine with a PLG 15/984 impeller in the pump mode.

  3. 3.

    The effect of eddy formation and air entrapment from the surface of the tailrace on the power curve of a horizontal capsule unit in the pump mode is manifested when the depth of the impeller axis is less than 1.2D1.

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Literature cited

  1. Yu. A. Yukhnov, Controlling the parameters, improving the economic efficiency of primary water-power projects, and expanding their functions, Theses of Papers presented at the All-Union Scientific-Technical Conference “Status of and Prospects for Water-Power Development,” [in Russian], Leningrad (1988).

  2. V. I. Vissarionov, S. G. Belyaev, and V. V. Elistratov, “Laboratory installations for complex studies of pumping stations intended for operation in the water-storage mode,” Tr. Lenin. Politekh. Inst., No. 401 (1984).

  3. V. I. Vissarionov and V. V. Elistratov, “Energy investigations of pumping stations with capsule units in the water-storage mode,” Izv. Vyssh. Uchebn. Zaved., Énerget., No. 1, (1987).

  4. N. N. Arshenevskii, S. I. Levina, and E. M. Natarius, “Performance curves of capsule hydraulic turbines operating in the reverse mode,” Gidrotekh. Stroit., No. 10 (1979).

  5. V. I. Vissarionov and V. V. Elistratov, “Investigation of eddy formation and air entrapment in underwater installations of low-head pumping stations,” Énerget. Izv. Vyssh. Uchebn. Zaved., No. 7 (1986).

  6. V. F. Sklyarov, L. N. Sosyukin, N. E. Grekalo, and S. I. Potashnik, “Reconstruction of low-head hydroelectric plants at hydroelectric/state area hydroelectric power plants,” Elektr. Stantsii, No. 1 (1986).

  7. J. Anton, V. Cămpian, and J. Carte, Hidrodinamica turbinelov si a turbinelov-pompe, Editura Technică, Bucharest (1988).

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Authors
  1. V. V. Elistratov
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  2. V. D. Zhilenko
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  3. E. P. Machikha
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  4. I. G. Gil'chenko
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Additional information

Translated from Gidrotekhnicheskoe Stroitel'stvo, No. 12, pp. 27–29, December, 1990.

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Elistratov, V.V., Zhilenko, V.D., Machikha, E.P. et al. Hydraulic model studies of a hydroelectric unit under operating conditions at hydroelectric/state area hydroelectric plants. Hydrotechnical Construction 24, 756–761 (1990). https://doi.org/10.1007/BF01434601

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  • DOI: https://doi.org/10.1007/BF01434601

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