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Pressures in the runner zone of a hydroelectric station with bulb units

Arshenevskii, N. N. / Levina, S. I.

Conclusions 1. The pressure in the space before the runner of turbines of bulb units is mainly a function of the reduced discharge and opening of the gate apparatus, and therefore the characteristics obtained for the PLK-548 and PLK-984 can be used when analyzing the operation of other turbines similar in specific speed. 2. The nonuniformity of the pressure distribution in the cross section before the runner of a bulb turbine is less than that of a vertical turbine of the same type for the same regimes with respect to QI′ and nI′. 3. If the high-vacuum zone during the transient process reaches a critical value, it can be avoided by assigning an appropriate regulating regime.

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Pressures in the runner zone of a hydroelectric station with bulb units

Arshenevskii, N. N. / Levina, S. I.

Conclusions 1. The pressure in the space before the runner of turbines of bulb units is mainly a function of the reduced discharge and opening of the gate apparatus, and therefore the characteristics obtained for the PLK-548 and PLK-984 can be used when analyzing the operation of other turbines similar in specific speed. 2. The nonuniformity of the pressure distribution in the cross section before the runner of a bulb turbine is less than that of a vertical turbine of the same type for the same regimes with respect to QI′ and nI′. 3. If the high-vacuum zone during the transient process reaches a critical value, it can be avoided by assigning an appropriate regulating regime.

Pressures in the runner zone of a hydroelectric station with bulb units

Arshenevskii, N. N. / Levina, S. I.

Conclusions 1. The pressure in the space before the runner of turbines of bulb units is mainly a function of the reduced discharge and opening of the gate apparatus, and therefore the characteristics obtained for the PLK-548 and PLK-984 can be used when analyzing the operation of other turbines similar in specific speed. 2. The nonuniformity of the pressure distribution in the cross section before the runner of a bulb turbine is less than that of a vertical turbine of the same type for the same regimes with respect to QI′ and nI′. 3. If the high-vacuum zone during the transient process reaches a critical value, it can be avoided by assigning an appropriate regulating regime.

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Title:

Pressures in the runner zone of a hydroelectric station with bulb units

Contributors:

Arshenevskii, N. N. (author) / Levina, S. I. (author)

Published in:

Hydrotechnical Construction ; 14 ; 486-492

Publication date:

1980-05-01

Size:

7 pages

ISSN:

1570-1468 , 0018-8220

DOI:

https://doi.org/10.1007/BF02305350

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

English

Keywords:

Energy Source , Power Generation , Pressure Distribution , Power Engineer , Renewable Energy Source Engineering , Energy Technology , Power Electronics, Electrical Machines and Networks , Renewable and Green Energy , Geoengineering, Foundations, Hydraulics

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