 Turgo turbine and generator The Turgo turbine is an impulse water turbine designed for medium head applications. Image File history File links Turgo turbine I created this image and release it under the GFDL; Pud 05:22, 12 Jul 2004 (UTC) File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ...
Image File history File links Turgo turbine I created this image and release it under the GFDL; Pud 05:22, 12 Jul 2004 (UTC) File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ...
t is the time duratio specific impulse [ ...
Kaplan turbine and electrical generator cut-away view. ...
In fluid dynamics, head refers to the constant right hand side in the incompressible steady version of Bernoullis equation. ...
Developed in 1919 by Gilkes as a modification of the Pelton wheel, the Turgo has some advantages over Francis and Pelton designs for certain applications. Pelton wheel from Walchensee, Germany hydro power station. ...
Francis turbine (courtsey Voith-Siemens). ...
First, the runner is less expensive to make than a Pelton wheel. Second, it doesn't need an airtight housing like the Francis. Third, it has higher specific speed and can handle a greater flow than the same diameter Pelton wheel, leading to reduced generator and installation cost.
Turgos operate in a head range where the Francis and Pelton overlap. While many large Turgo installations exist, they are also popular for small hydro where low cost is very important. Kaplan turbine and electrical generator cut-away view. ...
Micro hydro in North-West Vietnam Small hydro is the application of hydroelectric power on a commercial scale serving a small community or medium sized industry. ...
Theory of operation
 Turgo blades and nozzle. Image credit; European Communities, Layman's Guidbook (on how to develop a small hydro site)
The Turgo turbine is an impulse type turbine; water does not change pressure as it moves through the turbine blades. The water's potential energy is converted to kinetic energy with a nozzle. The high speed water jet is then directed on the turbine blades which deflect and reverse the flow. The resulting impulse spins the turbine runner, imparting energy to the turbine shaft. Water exits with very little energy. Turgo runners may have an efficiency of over 90%. Image File history File links Turgo turbine jet This image is from Laymans Guidbook on how to develop a small hydro site, published by the European Small Hydropower Association. ...
Image File history File links Turgo turbine jet This image is from Laymans Guidbook on how to develop a small hydro site, published by the European Small Hydropower Association. ...
t is the time duratio specific impulse [ ...
Potential energy is stored energy. ...
Kinetic energy is energy that a body possesses as a result of its motion. ...
A Turgo runner looks like a Pelton runner split in half. For the same power, the Turgo runner is one half the diameter of the Pelton runner, and so twice the specific speed. The Turgo can handle a greater water flow than the Pelton because exiting water doesn't interfere with adjacent buckets.
The specific speed of Turgo runners is between the Francis and Pelton. Single or multiple nozzles can be used. Increasing the number of jets increases the specific speed of the runner by the square root of the number of jets (four jets yield twice the specific speed of one jet on the same turbine ).
See also During and after commissioning and under general operational conditions Turgo Turbine achieve efficiencies of 86% to 88%. In factory and lab performance tests Turgo Turbines can have perform with efficiency of up to 90%. Kaplan turbine and electrical generator cut-away view. ...
Hydroelectric dam diagram The waters of Llyn Stwlan, the upper reservoir of the Ffestiniog Pumped-Storage Scheme in north Wales, can just be glimpsed on the right. ...
External links - Turgo turbine math, Czechoslovakian
- Gilkes turgo turbines
- Commercial small turgo products
- WKV Turgo turbines
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