Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Increasing the winter operating efficiency of hydroelectric stations by regulating the freeze-up
Conclusions 1. An increase in the winter operating efficiency of hydroelectric stations is made possible by regulating the ice regime of the lower pool with consideration of the expected meteorological conditions. 2. The causes of deterioration of the ice regime in the lower pool and occurrence of high ice backwater at the station site are breaking of the ice and artificial ice movements in early winter in the stretch of intense variation of the water level during daily load regulation. 3. Limitation of the variations of the lower pool levels within 1-m limits (at stream velocities 0.6–1 m/sec) is the main measure for improving the conditions of ice cover formation and preventing ice shifts and thereby decreasing the winter backwater in the lower station pool. 4. For each station it is possible to construct graphs of optimal discharges for different meteorological conditions and distances of the ice edge, and also of the variation limits of the lower pool levels which permit a timely correction of the station operating regime during the formation of the ice cover for the purpose of increasing the station production during the winter.
Increasing the winter operating efficiency of hydroelectric stations by regulating the freeze-up
Conclusions 1. An increase in the winter operating efficiency of hydroelectric stations is made possible by regulating the ice regime of the lower pool with consideration of the expected meteorological conditions. 2. The causes of deterioration of the ice regime in the lower pool and occurrence of high ice backwater at the station site are breaking of the ice and artificial ice movements in early winter in the stretch of intense variation of the water level during daily load regulation. 3. Limitation of the variations of the lower pool levels within 1-m limits (at stream velocities 0.6–1 m/sec) is the main measure for improving the conditions of ice cover formation and preventing ice shifts and thereby decreasing the winter backwater in the lower station pool. 4. For each station it is possible to construct graphs of optimal discharges for different meteorological conditions and distances of the ice edge, and also of the variation limits of the lower pool levels which permit a timely correction of the station operating regime during the formation of the ice cover for the purpose of increasing the station production during the winter.
Increasing the winter operating efficiency of hydroelectric stations by regulating the freeze-up
Smelyakova, A. D. (Autor:in)
Hydrotechnical Construction ; 7 ; 1172-1174
01.12.1973
3 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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