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Kaplan turbine
Videos
The Kaplan turbine is a propeller-type water turbine which has adjustable blades. It was developed in 1913 by Austrian professor Viktor Kaplan, who combined automatically adjusted propeller blades wit
A Bonneville Dam Kaplan turbine after 61 years of service
A Bonneville Dam Kaplan turbine after 61 years of service
On this Kaplan runner the pivots at the base of the blade are visible; these allow the angle of the blades to be changed while running. The hub contai
On this Kaplan runner the pivots at the base of the blade are visible; these allow the angle of the blades to be changed while running. The hub contains hydraulic cylinders for adjusting the angle.
Vertical Kaplan Turbine (courtesy Voith-Siemens)
Vertical Kaplan Turbine (courtesy Voith-Siemens)
Viktor Kaplan Turbine, Technisches Museum Wien
Viktor Kaplan Turbine, Technisches Museum Wien
Francis turbine
Videos
The Francis turbine is a type of water turbine. It is an inward-flow reaction turbine that combines radial and axial flow concepts. Francis turbines are the most common water turbine in use, and can a
Kaplan turbine
…with automatically adjusted wicket gates to achieve efficiency over a wide range of flow and water level. The Kaplan turbine was an evolution of the Francis turbine. Its invention allowed efficient power production in low-head applications which was not possible with Francis turbines. The head ranges from 10 to 70…
Francis inlet scroll at the Grand Coulee Dam
Francis inlet scroll at the Grand Coulee Dam
Side-view cutaway of a vertical Francis turbine. Here water enters horizontally in a spiral-shaped pipe (spiral case) wrapped around the outside of th
Side-view cutaway of a vertical Francis turbine. Here water enters horizontally in a spiral-shaped pipe (spiral case) wrapped around the outside of the turbine's rotating runner and exits vertically down through the center of the turbine.
Pawtucket Gatehouse in Lowell, Massachusetts; site of the first Francis turbine
Pawtucket Gatehouse in Lowell, Massachusetts; site of the first Francis turbine
Francis Runner, Grand Coulee Dam
Francis Runner, Grand Coulee Dam