Reaction turbine demonstration unit, designed for operation in conjunction with the Turbine Service Unit. The turbine unit is placed on the Turbine Service Unit and supplied with water by the service unit. The turbine housing is made of Plexiglass so that the emerging water jet that drives rotor using the reaction principle can be observed unhindered. A braking device is fitted to the impeller shaft of the turbine, the braking device is in the form of a band brake using which the load and moment on the turbine shaft can be measured with an electronic dynamometer. A proximity switch measures the rotational speed of the turbine. The following accessories are required for operation: an Interface Module, Data Acquisition Card with Software and Connecting Cables .
The unit perform the following experiments and investigations:
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:
Investigation of a compressed air driven radial reaction turbine
Transparent housing for observing the operating area [
Rotor with 4 outlet nozzles
Application of load to the turbine by means of a band brake
Setting of the primary pressure with the pressure reducing valve
Valve and flow meter for setting the flow
Solenoid valve as a safety device to prevent over speed
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 the pressure on the inlet and outlet side
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: 25...315L/min
Inlet pressure: 0...2,5bar
Outlet pressure: 0...0,1bar
Primary pressure: 0...10bar
Dimensions and Weight
LxWxH: 860 x 360 x 750mm
Weight: approx. 45kg
Featured:
Demonstration model of a reaction turbine
Transparent turbine housing
Measured data acquisition using electronic sensors