Hydro

ANDRITZ

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ANDRITZ HYDRO is a global supplier of electromechanical systems and services (“from water-to-wire“) for hydropower plants and one of the leaders in the world market for hydraulic power generation. ...

ANDRITZ HYDRO has more than 175 years of accumulated experience in turbine design and has over 31,000 turbines - more than 430,000 MW - installed globally.

Based on the specific requirements of the hydropower plant, ANDRITZ HYDRO provides the optimal type of turbine – up to 1800 m head and 800 MW.

Bulb turbines

The solution for very low head and low output

Nowadays, very low heads can be used for power generation in a way that is economically feasible. So far, ANDRITZ HYDRO has supplied more than 300 units, ranging from heads from 0.5 m up to 30 m, with a maximum runner diameter of 7,700 mm and outputs up to 76.5 MW.

The most important feature of a bulb turbine is the horizontal positioning of the shaft, which results in a reduced size compared to a vertical shaft arrangement.

Francis turbines

The ideal choiice for medium head and large unit output.

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.

Kaplan turbines

The solution for low head and medium output

Kaplan turbine is utilized on a low head application with up to 90 m and a unit output of up to more than 230 MW. The degree of efficiency is very high with more than 95 %.

The Kaplan turbine is a propeller type water turbine with 4 to 7 adjustable blades. It is an outward reaction turbine, resulting in a changed water pressure as the water moves through the turbine and gives up its energy.

The runner consists of the stainless steel runner blades mounted on the runner hub and the runner cap at the lower side of the hub, enhancing the optimized hydraulic shape. ANDRITZ HYDRO has experience with runner diameters up to 10,000 mm. The runner blades are moveable, allowing to adjust the water discharge and turbine output. Due to these moveable blades, the Kaplan turbines show a high efficiency level. In some applications, where a more or less constant water flow can be guaranteed, the Kaplan turbine can be designed with fixed runner blades.

Pelton turbines

The Pelton wheel is an impulse type water turbine, extracting energy from the impulse of the moving water. The water is directed with high speed through nozzles against the buckets, arranged around the circumferential rim of a drive wheel – the runner. The shaft design can be either in horizontal position in combination with one or two nozzles per runner, or in vertical position with up to six nozzles per runner.

Pump turbines

Best solution for pump storage hydropower plants, they are able to reverse the water flow and operate as a pump to fill a higher located reservoir in off-peak periods and then revert to a classical water turbine for power generation during peak demand.

provides the technology and proven expertise in design, manufacturing, supply, installation, commissioning and service of complex pump turbines, mostly based on the Francis turbine design. The multitude of configurations available include horizontal or vertical, single or multiple stage, fixed or variable speed, with or without cylindrical ring gate, and individual or combined actuation of guide vanes, all custom designed and built to meet the most demanding customer requirements and environmental criteria in pump storage applications worldwide.

VOITH

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WASSERKRAFTWERK VOLK

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