Ecoclap, the turbine flap gate

The assembly of a series of submersible water turbines inside the hollow structure of a flap gate makes it possible to produce electricity.
The flow which overflow usually can then be turbined and produce renewable energy.
A flap gate with 12m width and 4m height can develop an electric power of 120kW with six turbines.

Applications:

• at the time of the restoration of dams with flap gates
• on sites sensitive to the hydraulic impact

The applications are numerous:

• to turbine compensation water
• over-equipment of existing power plants
• equipment of sites sensitive to the hydraulic impact

The principle

• Water supply by overflow
• realization of a water chamber inside the hollow structure of the flap gate
• use of small-size submersibles water turbines

Operation and advantages

• no hydraulic impact
• regulating of the water level possible even in the event of stopping of the turbines
• low piscicultural mortality
• evacuation of waste by flushing
• easy maintenance
• lower costs than those of a traditional small hydro power plant

Range of use

• heads from 3 to 6 m
• flow from 250 to 500 l/s/m crest