Impulse turbine: Investigation of a compressed air driven axial impulse turbine.

Features:

• characteristic behaviour of an impulse turbine with air flow, optimal view of the operating area of a turbine, load applied by wear-free eddy current brake.

• Learning objectives/experiments, design and function of an impulse turbine, determination of torque, power and efficiency, graphical representation of characteristic curves for torque, power and efficiency, investigation of the effect of nozzle pressure and number of nozzles.

Specification:

• investigation of a compressed air driven axial impulse turbine

• transparent front panel for observing the operating area

• distributor with 4 nozzles

• selectable number of nozzles

• applying a load to the turbine by using the wear-free eddy current brake

• setting the primary pressure with the pressure reducing valve

• valve and flow meter for setting the flow rate

• solenoid valve as a safety device to prevent overspeed

• determination of the torque on the turbine shaft using a force sensor

• measurement of the turbine speed with an optical speed sensor

• manometer for displaying pressures on the inlet and outlet side

• digital display of speed, torque and temperature. Technical data:Axial impulse turbine, max. power: approx. 30W at 15000min-1, Rotor, Ø outer: 55mm, number of blades: 28. Distributor, 4 nozzles, number can be selected, entry and exit angle: 20°. Measuring ranges: temperature: -20...1100°C, speed: 0...30000min-1, torque: 0...10Ncm, flow rate: 2...16Nm3/h, inlet pressure: 0...2,5bar, outlet pressure: 0...0,1bar, primary pressure: 0...10bar, 230V, 50Hz, 1 phase;