Home

Deutsch






















Six-jet turbines, largest distributor-inlet diameter of 2400 mm, Restitución Electroperu, Lima, Peru. 

Paute Instituto Ecuadoriano de Electrificación, Quito, Ecuador
 

Pelton turbines

Since the turn of the 19th century, thousands of Pelton turbines have been supplied by Voith Siemens Hydro Power Generation, including the world’s largest and most powerful.

These are in service around the globe in numerous hydropower plants. What better testimony to our more than 135 years of water turbine know-how?

Numerical flow analysis:
The flow simulation of Pelton turbines is by far the most complex and difficult of all hydraulic turbo-machinery simulations.

Pelton turbines involve a number of special flow characteristics which are extremely difficult to simulate. The jet bucket interaction is fully transient and depends on the moving geometry of the buckets. Even more challenging is the multiphase system of air and water that governs the formation of the free jet and the flow through the buckets. In the past, developing a flow simulation that would allow a realistic analysis of these phenomena seemed to be a task not to be solvable.

Walchenseewerk Bayernwerk AG, Munich, Germany.
 
Voith Siemens Hydro’s numerical development group has finally overcome these major problems in simulating the bucket flow typical for the Pelton hydraulic. Simulation results and experimental data have shown a remarkable congruence. Today, designers have new insights into complex bucket flow phenomena providing a solid foundation for the development of new bucket profiles, that result in improved Pelton turbines.

 

Characteristics:

A broad manufacturing program offers an economical solution for any significant requirement. Large, custom-built Pelton turbines for high output ranges are our speciality, but cost-effective standard machines for small hydro power plants are also available.

Application range