Kaplan Turbine

A Kaplan turbine is a reaction propeller-type turbine which generates power from the combined forces of pressure and moving water. A runner is placed directly in the water stream, allowing water to flow over the blades rather than striking each individually. In a Kaplan turbine both the blades and the wicket gates are adjustable, allowing for a wider range of operation. This turbine was developed by Austrian inventor Viktor Kaplan in 1919.