Author(s): Chen Yun-Liang; Wu Chao; Ju Xiao-Ming; Ye Mao
Linked Author(s):
Keywords: Low-head hydraulic resource; Power station of bulb tubular type turbine; Load rejection; Transient flow
Abstract: Waterpower resource is clean and renewable. The low-head hydraulic resource is abundant on economically advanced coastal region in China. It is suitable to develop the power station of bulb tubular type turbine here. The water level fluctuation is violent in downstream open channel after all load rejection in this type station. The effects can’t be ignored on the transient flows in unit. The station unit’s boundary equations and the boundary equations between draft tube outlet and downstream open channel inlet are established in this paper. According to the mathematical model, the transient flows in units and downstream open channel after load rejection are simulated together. The model shows that unified analysis of hydraulics and mechanics, pressure flow and unconfined flow is realized in researching transient flows in hydroelectric station. The results can direct safe operation of the bulb tubular type turbine and navigation in downstream open channel.
Year: 2005