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Effect of the shape of structural members on head losses in tower (shaft) inlet-outlets of pumped-storage stations
Conclusions 1. An increase of the radius of transition of the sill of orifices with the cylindrical end section of the pressure conduit is accompanied by a substantial decrease of the values of the total coefficient of head losses of the inlet-outlet in a pump regime for all heights of the orifices. Smaller values of head losses are observed for a flat shape of the central part of the ceiling (bottom of the cylinder gate). In the turbine regime an insignificant decrease of head losses is noted for h<0.5dc with increase of the radius of transition in the interval R=(0.2–0.4)dc. 2. In the case of a tapered end section of the pressure conduit, a change in the shape of the central part of the ceiling as well as an increase of the radius of transition of the sill of the orifices with a flare has almost no effect on head losses in the inlet-outlet in pump and turbine regimes.
Effect of the shape of structural members on head losses in tower (shaft) inlet-outlets of pumped-storage stations
Conclusions 1. An increase of the radius of transition of the sill of orifices with the cylindrical end section of the pressure conduit is accompanied by a substantial decrease of the values of the total coefficient of head losses of the inlet-outlet in a pump regime for all heights of the orifices. Smaller values of head losses are observed for a flat shape of the central part of the ceiling (bottom of the cylinder gate). In the turbine regime an insignificant decrease of head losses is noted for h<0.5dc with increase of the radius of transition in the interval R=(0.2–0.4)dc. 2. In the case of a tapered end section of the pressure conduit, a change in the shape of the central part of the ceiling as well as an increase of the radius of transition of the sill of the orifices with a flare has almost no effect on head losses in the inlet-outlet in pump and turbine regimes.
Effect of the shape of structural members on head losses in tower (shaft) inlet-outlets of pumped-storage stations
Mikhailov, I. E. (author) / Polikarpov, Yu. V. (author) / Fink, A. K. (author)
Hydrotechnical Construction ; 27 ; 419-423
1993-07-01
5 pages
Article (Journal)
Electronic Resource
English
| British Library Online Contents | 1993
Head-loss reduction in the water-intakes/outlets of pumped-storage tower (shaft)-type power plants
| Springer Verlag | 1992
Head-Loss Reduction in the Water-Intakes/Outlets of Pumped-Storage Tower (Shaft)-Type Power Plants
| British Library Online Contents | 1992
Head-loss reduction in the water-intakes/outlets of pumped-storage tower (shaft)-type power plants
| Online Contents | 1992