Water Head Applicable: H=20m-400m.
Used for project with middle & high water head with middle level of water flow.
Divided into vertical type and horizontal type.
Simple structure, reliable operation and widely.
Francis turbines have an output range of 100 kW to 50 MW per unit.
The runners have diameters of up to 2,000 mm.
The original Francis turbine has been modified from time to time to improve its efficiency, and today, an efficiency of more than 93% has been reached. Francis turbine is a versatile one and can work over a very wide range of heads from 25m onwards to 550m. This is a reaction type of turbine where water is admitted at high pressure into the runner, and pressure energy is converted into mechanical energy, because of the reaction of water when traveling over the curved vanes. As the pressure inside the turbine varies, Francis turbine is also called a variable pressure turbine.
Francis Turbine Structure Chart
Main components of the turbine are the scroll case or the spiral casing; stay vanes; guide vanes; runner. Below picture is showing the Francis turbine main parts
Horizontal Francis Turbine Installation Drawing and Installation Site
After Contract or Project details confirmed, we will off the CAD Installing Drawing, below is the Horizontal Francis Turbine we made before.
Vertical Francis Turbine Site Preview
The water turbine is covered under the ground for Vertical Layout pattern. What we see in the power house is generator.