Chengdu Forster Technology Co., Ltd. products

Francis turbine definition is a combination of both impulse and reaction turbine, where the blades rotate using both reaction and impulse force of water flowing through them producing electricity more efficiently. Francis turbine is used for the production of electricity most frequently in medium or large-scale hydropower stations. These turbines can be used for heads as low as 2 meters and as high as 300 meters. Additionally, these turbines are beneficial as they work equally well when positioned horizontally as they do when they are oriented vertically. The water going through a Francis turbine loses pressure, but stays at more or less the same speed, so it would be considered a reaction turbine.

Francis turbine has the advantages of compact structure, high efficiency and can adapt to a wide range of water head of turbine type. It is one of the widely used ar 20KW mini hydro turbine-generator ound the world; When the water flow through the turbine wheel, it enters to radial, axial flow, so it is also called the radial axial flow turbine; Francis turbine is also called the Francis turbine. The water flow from the surrounding radial inflow runner, then approximate axial flow runner, runner by the crown, under the ring and the blade.

Forster Francis turbine is the ideal choice for medium head and large flow. Forster Francis turbines are available in varying configurations, horizontal or vertical, with flexibility in design to ensure best efficiency and reliability of operation under the most extreme conditions. Forster Francis turbines are characterized by incomparable longevity, durability, reliability, and robustness. Extensive research and development activities ensure best efficiency and maximum output, feasible over a wide range of operation, both in multiple and single unit configurations. Forster Francis turbines are ideally suited for energy applications with a medium head of 20m up to 300m and an output of 10KW up to 10MW per unit. It has a very high degree of efficiency of more than 95 % and is an ubiquitously applicable turbine type. Foster Francis turbine is a complete set of hydroelectric generating units, including valve, governor, control system and transformer.

Unlike other types of turbines which are reaction turbines, the Pelton turbine is known as an impulse turbine. This simply means that instead of moving as a result of a reaction force, water creates some impulse on the turbine to get it to move. When used for generating electricity, there is usually a water reservoir located at some height above the Pelton turbine. The water then flows through the penstock to specialized nozzles that introduce pressurized water to the turbine. To prevent irregularities in pressure, the penstock is fitted with a surge tank that absorbs sudden fluctuations in water that could alter the pressure. The following picture shows 2x200kw hydraulic station upgraded by Forster in China. Forster has replaced a brand-new hydraulic turbine, generator and control system, and the output power of a single unit has been increased from 150KW to 200kW.

A turbine converts energy in the form of falling water into rotating shaft power. The selection of the best turbine for any particular hydro site depends on the site characteristics, the dominant ones being the head and flow available. Selection also depends on the desired running speed of the generator or other device loading the turbine. Other considerations such as whether the turbine is expected to produce power under part-flow conditions, also play an important role in the selection. All turbines have a power-speed characteristic. They will tend to run most efficiently at a particular speed, head and flow combination.