Similar to Kaplan turbines propeller type turbines are part of the reaction turbines with an axial through flow. In contrast to Kaplan turbines propeller type turbines have fixed blades. These turbines are used at low heads and very large flow rates. The turbine power is changed by adjusting the guide vanes. In practice, propeller type turbines and Kaplan turbines are used in run-of-the river power plants.
The propeller type turbine HM 450.03 is an accessory for the HM 450C trainer. The experimental unit consists of the rotor, the distributor with adjustable guide vanes, a wear-free and adjustable eddy current brake for loading the turbine and the housing with a transparent pipe element. The transparent cover enables you to observe the water flow, the rotor and the guide vanes during operation.
In the propeller type turbine, the water flows axially through the rotor. The angle of attack and the cross-section of flow are adapted to the speed and power of the turbine by adjusting the guide vanes.
The pressure at the turbine inlet is recorded with a pressure sensor. A force sensor and a speed sensor are attached to the eddy current brake. Thus, the mechanical power output of the turbine can be determined. Speed, torque and pressure are displayed on the switch cabinet of HM 450C and processed further in the software. Water supply and flow rate measurement are provided by HM 450C.
