Solution:

A cross-flow turbine is a horizontal-shaft turbine in which water flows substantially along a horizontal axis in a flow passage. It is a special type of low-head, high-flow hydropower station. Since the water flow moves substantially in the axial direction in the flow passage and does not turn, the water passing capacity and hydraulic efficiency of the unit can be improved. It is especially suitable for tidal power stations. Its two-way power generation, two-way pumping and two-way water discharge are suitable for comprehensive utilization of low head hydraulic resources. Tubular turbines are suitable for low head applications with high efficiency and low investment.
1. Suitable head range is 1m~30m.
2. The output range is 0.5MW~30MW.
3. Because of its good flow characteristics, the cross-flow unit has high specific speed, large over-current capability and wide high-efficiency area. The efficiency is 1~2% higher than that of the vertical rotary unit.
4. The cross-flow unit has no volute, so the unit spacing is small and the plant area is reduced.
5. The unit is a horizontal axis, the amount of excavation is small, the shape of the flow channel is also simple, and the amount of civil engineering is not only small but also convenient for construction. From the perspective of overall economic benefits, power plant investment is reduced by about 20% compared to vertical rotary reactors.