Axial Flow Turbomachines
Categories: Engineering Lab EquipmentThe core piece of the experimental plant is the axial turbomachine with attached asynchronous motor. It can be operated either as a pump or turbine. To this end, different rotors, impellers and stator...
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Description
The core piece of the experimental plant is the axial turbomachine with attached asynchronous motor. It can be operated either as a pump or turbine. To this end, different rotors, impellers and stators, guide vane systems are used. Included in the scope of delivery are four rotors, impellers and four stators, guide vane systems supplied with different blade, vane angles. The experimental plant contains a closed water circuit with expansion tank and centrifugal pump. The compressed-air powered expansion tank allows the turbomachine to be converted without loss of water.
The asynchronous motor functions during turbine operation as a generator, and during pump operation as a drive. A powerful pump generates flow and pressure during turbine operation. The power that is generated by the turbine is fed into this pump.
Learning Objectives/Experiments
Recording characteristic curves
Determining dimensionless characteristics
Velocity triangles and pressure curves
Investigation of energy conversion within the turbomachine
How blade, vane shape affects power and efficiency
Determining the outlet angular momentum and its effect on the power
Cavitation effects
Specification
Investigation of an axial flow turbomachine
Closed water circuit with expansion tank and centrifugal pump
Turbomachine may be operated as a turbine and as a pump
Two sets of impellers and guide vane systems for pump mode and two sets of rotors and stators for turbine mode with different inlet and outlet angles
Asynchronous motor with 4-quadrant operation via frequency converter
Recovery of the brake energy
Motor with pendulum bearing, torque measurement via lever arm and force sensor
Inductive speed sensor on the motor
Manometers for measuring the inlet and outlet pressures
Measuring probe and differential pressure sensor for recording the pressure curve in the turbomachine
Electromagnetic flow meter
Display of power consumption, torque, speed, pressure, differential pressure and flow rate
Technical data
Centrifugal pump
power: 5,5kW
max. flow rate: 150m3/h
max. head: 10m
Asynchronous motor
power: 1,5kW
torque: 0…5Nm
speed: 0…3000min-1
Expansion tank: 150L
Measuring ranges
pressure (manometer): 2x -1…5bar
differential pressure: 5x 0…500mbar
flow rate: 0…100m3/h
speed: 0…3000min-1
torque: 0…9,81Nm
400V, 50Hz, 3 phases
quick overview :
The core piece of the experimental plant is the axial turbomachine with attached asynchronous motor. It can be operated either as a pump or turbine. To this end, different rotors, impellers and stators, guide vane systems are used. Included in the scope of delivery are four rotors, impellers and four stators, guide vane systems supplied with different blade, vane angles. The experimental plant contains a closed water circuit with expansion tank and centrifugal pump. The compressed-air powered expansion tank allows the turbomachine to be converted without loss of water.
The asynchronous motor functions during turbine operation as a generator, and during pump operation as a drive. A powerful pump generates flow and pressure during turbine operation. The power that is generated by the turbine is fed into this pump.
Learning Objectives/Experiments
Recording characteristic curves
Determining dimensionless characteristics
Velocity triangles and pressure curves
Investigation of energy conversion within the turbomachine
How blade, vane shape affects power and efficiency
Determining the outlet angular momentum and its effect on the power
Cavitation effects
Specification
Investigation of an axial flow turbomachine
Closed water circuit with expansion tank and centrifugal pump
Turbomachine may be operated as a turbine and as a pump
Two sets of impellers and guide vane systems for pump mode and two sets of rotors and stators for turbine mode with different inlet and outlet angles
Asynchronous motor with 4-quadrant operation via frequency converter
Recovery of the brake energy
Motor with pendulum bearing, torque measurement via lever arm and force sensor
Inductive speed sensor on the motor
Manometers for measuring the inlet and outlet pressures
Measuring probe and differential pressure sensor for recording the pressure curve in the turbomachine
Electromagnetic flow meter
Display of power consumption, torque, speed, pressure, differential pressure and flow rate
Technical data
Centrifugal pump
power: 5,5kW
max. flow rate: 150m3/h
max. head: 10m
Asynchronous motor
power: 1,5kW
torque: 0…5Nm
speed: 0…3000min-1
Expansion tank: 150L
Measuring ranges
pressure (manometer): 2x -1…5bar
differential pressure: 5x 0…500mbar
flow rate: 0…100m3/h
speed: 0…3000min-1
torque: 0…9,81Nm
400V, 50Hz, 3 phases
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