Author(s): N. S. Bakanovichus; Lyalina; I. N. Shatalina
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Abstract: The ice regime is considered when flowing water through a power plant complex as part of a power plant + HPP-counter-regulator, when in winter it is necessary to use an operating surface spillway instead of the normal passage of water through turbines and water lines pass the flow of water. This can occur in the emergency condition of water lines. The situation that has arisen can be dangerous for the underlying HPP-counter-regulator, since it is possible to block its containment grating with a frazil ice as a result of a change in the ice regime of the lower tailrace of the overlying HPP.
Year: 2018