Reaction turbine Investigation of a compressed air driven radial reaction turbine Features - characteristic behaviour of a reaction turbine with air flow - optimal view of the operating area of a turbine - load applied by wear-free eddy current brake Learning objectives/experiments - familiarisation with the design and function of an impulse turbine - determination of torque, power and efficiency - graphical representation of characteristic curves for torque, power and efficiency Specification [1] investigation of a compressed air driven radial reaction turbine [2] transparent housing for observing the operating area [3] rotor with 4 outlet nozzles [4] application of load to the turbine by means of a wear-free eddy current brake [5] setting of the primary pressure with the pressure reducing valve [6] valve and flow meter for setting the flow [7] solenoid valve as a safety device to prevent overspeed [8] determination of the torque on the turbine shaft using a force sensor [9] measurement of the turbine speed with an optical speed sensor [10] manometer for displaying the pressure on the inlet and outlet side [11] digital display of speed, torque and temperature Technical data Reaction turbine - max. power: 20W at 19000min-1 Rotor - diameter: 55mm - 4 outlet nozzles, diameter: 1,5mm Measuring ranges - temperature: -20...1100°C - speed: 0...30000min-1 - torque: 0...10Ncm - flow rate: 2...16m3/h - pressure (inlet): 0...2,5bar - pressure (outlet): 0...0,1bar - primary pressure: 0...10bar 230V, 50Hz, 1 phase; 120V, 60Hz, 1 phase UL/CSA optional LxWxH: 850x605x700mm Weight: approx. 41kg