The Archimedes screw consists of a screw (a helical surface surrounding a central cylindrical shaft) inside a hollow pipe. The screw is usually turned by windmill, manual labor, cattle, or by modern means, such as a motor. As the shaft turns the bottom end scoops up a volume of water. This water is then pushed up the tube by the rotating helicoid until it pours out from the top of the tube.
By reversing the system, it could be used to generate electricity. If water is fed into the top of an Archimedes screw, it will force the screw to rotate. The rotating shaft can then be used to drive an electric generator. Such an installation has the same benefits as using the screw for pumping: the ability to handle very dirty water and widely varying rates of flow at high efficiency. The hydraulic head requirement is just between 1.0m – 10.0m, and flow requirement is between 0.1m3 – 10m3. The most efficient project can generate 270 kW, and the system capacity can be increased by using parallel connection.
- Due to quietness of system, it can be built in cities
- Easy, quick and quite construction
- Low operation and maintenance cost, high efficiency even lowest flow
- Open the remote control and monitoring
- Nature friendly mechanism, no interruption to fish passing
Amasya Yeşilırmak Rubber Dam and Archimedes’ Screw
Ankara ASKİ Tatlar Waste Water Archimedes’ Screw
Sakarya Nehri Arşimet Burgu HES Projesi (1.3 MW)
Edirne Meriç Nehri ‘3 Nehir 1 Şehir’ Arşimet Burgu HES Projesi (2.2 MW)
Azerbaycan Karabağ Zengilan ‘Smart City’ Arşimet Burgu HES Projesi (636 kW)