KATAMAX

To obtain electrical energy from small and varying quantities of water, the principle of an upper-shaft water wheel was improved by extending the vertical conveying section. Since in principle only one point of the circumference of a wheel is vertical, on the one hand only a partial quantity is taken up when the blades are filled, and on the other hand the wheel prematurely loses the water in the blades in the lower half. 

By adding a second axle, the distance over which the water performs work could be considerably extended, thus increasing the effectiveness of energy recovery. This makes it possible to use water volumes and low heads where, for example, the use of turbines was previously uneconomical. 

turbines was uneconomical. The capacity of the plants ranges from 1 to max. 50 KW, with drop heights from 2 m being usable. 

Merkle & Partner was responsible for the fluid mechanical design and the construction of the plant. The test plant was built by Brandt & Büscher, with KHW providing the ideas.