5 Mw Francis Hydro Turbine For Mini Power House Water Head 70m

The original Francis turbine has been modified from time to time to improve its efficienty, and today, an efficienty 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 reactin 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 travling over the curved vanes. As the pressure inside the turbine varies, Francis turbine is also called a variable pressure turbine.

A978 Francis Water Turbine Multiple Characteristic Curve

Runner shape depends on the head, output and specific speed of a turbine. Runner vanes numbers depends upon head, output and rotational speed of the runner. It may vary from 10 to 20. This number may be less than the number of guide vanes. To prevent water under pressure from bypassing the runners and finding its way directly from the guide vane to the draft tube, sealing rings called labyrinth rings are provided at the exit of the runner on the outer face to the band.

 


Established in 2003, Hongya power is an international company offering tailored solutions for “small”hydroelectric developments. Hongya power complete water to wire package includes design, manufacture,installation & commissioning.

Hongya power offers a range of hydroelectric turbines capable of generating up to 20MW from a single unit. The range consists of Pelton, Francis and Turgo turbines and includes compact solutions for the 50kW to 10000kW market.

Drawing on the vast experience gained from over 30 years of designing, manufacturing and commissioning hydro schemes, Hongya power excels when it comes to servicing and plant modernisation –from single part replacement to fully rehabilitating whole installations back to their optimum working

efficiencies.

Hongya power exports to over 30 countries from the original headquarters in Yuping town, Hongya county, China. With thousands of installations around the world, Hongya power continues to demonstrate the ability to be sensitive to regional differences and requirements, designing, manufacturing, and installing customized engineered solutions for their clients. This coupled with a corporate commitment to invest in research and development, software, hardware, and people, allows Hongya power to improve products to best serve their clients and the Hydropower market.