Features:
Investigation of a single-stage axial turbo- machine 1
Can  be  operated as  pump  or  turbine  by changing the paddels1
Transparent working area
The core piece of the experimental plant is the Tesca Axial Turbo-machine with an attached motor/generator. It can be operated either as a pump or turbine. To this end, different sets of paddles are used. The transparent housing allows a full view of the blades and flow processes. A compressed- air- powered equalization basin can quickly flood the system. Operation under different pressure levels is possible in order to study the cavitation. The braking power is fed back into the grid.
A water tank allows the turbo-machine to be converted without loss of water. In turbine mode, the turbo-machine is driven by means of a powerful pump. The extra rotors and stators supplied with different blade angles allow sophisticated experiments. Velocity triangles can be used for the graphical representation of the velocity conditions at the water inlet and outlet as well as within the turbo-machine.
The speed is detected contact-free by means of an inductive displacement sensor on the motor shaft. To  determine the drive power, the drive
motor is mounted on swivel bearings and equipped with a force sensor to measure the drive torque. The differential pressure is detected radially in different blade planes by means of a 3-hole probe. Manometers measure the inlet and outlet pressures. The flow rate is measured by an electromagnetic flow meter. The measured values are read from digital displays.
The experimental plant contains a closed water circuit with a tank and centrifugal pump.
The well-structured instructional material sets out the fundamentals and provides a step-by- step guide through the experiments.

Specifications
Investigation on an axial flow turbo-machine
Closed water circuit with tank and centrifugal pump
Turbo-machine may be operated as a turbine and as a pump
Two sets of paddles for pump mode and two sets of paddles for turbine mode with different entry and exit angles
Asynchronous motor/generator with 4- quadrant operation via frequency converter
Regenerative feedback of the brake energy
Motor with pendulum bearing, torque measurement via lever arm and force sensor
Inductive speed sensor on the motor
Manometer for measuring the inlet and outlet pressures
Measuring probe and differential pressure sensor for recording the pressure curve in the turbo-machine
Electromagnetic flowmeter
Display of  power consumption, torque, speed, pressure, differential pressure, and flow rate

Technical Specifications:
Centrifugal pump
Power: 5,5kW 
Max. flow rate: 150m³/h
Max. head: 10m
Motor/generator
Power: 1,5kW
Torque: 0...5Nm
- Speed: 0...3000min-1
Water tank: 150L

Measuring ranges
Pressure (manometer): 2x -1...5bar
Differential pressure: 5x 0...500mbar
Flow rate: 0...150m³/h
- Speed: 0...9999min-1
Torque: 0...5Nm

Experiments:
Recording characteristic curves
Determining dimensionless characteristics
Velocity triangles and pressure curves
Investigation of energy conversion within the turbo-machine
How blade shape affects power and efficiency
Determine the outlet angular momentum and its effect on the power
Cavitation effects

Services Required:
Mains power supply: 220-240V, 1Ph, 50Hz
Compressed air connection: 3...10bar