Experiments With A Radial Compressor

Radial compressors are used to compress gases. The experimental unit provides the basic experiments to get to know the operating behaviour and the important characteristic variables of radial compressors. A protective plate placed in front of the inlet of the intake pipe prevents larger objects from being sucked in or the clogging of the intake opening. The medium is sucked in axially to the drive shaft by the rotation of the impeller and flows through the impeller rotating at high speed. By means of centrifugal force, the medium is accelerated towards the outer edge and is compressed in this manner. The air flow is adjusted by a throttle valve at the end of the delivery pipe. The microprocessor-based measuring technique is well protected in the housing. The experimental unit is fitted with sensors for pressure, temperature and speed. The flow rate is determinated via differential pressure measurement on the intake nozzle.

Display of differential pressures, flow rate, speed, electrical power consumption and hydraulical power output, temperatures and efficiency
Throttle valve for adjusting the air flow in the delivery pipe
Protecting plate at air inlet for undisturbed air flow
Microprocessor-based measuring technique
Determination of flow rate via intake nozzle
Functioning and operating behaviour of a radial compressor
Two-stage radial compressor with drive motor
Variable speed via frequency converter
Transparent intake and delivery pipes.

Technical Data:
Intake pipe
Length: L=84mm
Inner diameter: D=44mm
Delivery pipe
Length: L=200mm
Inner diameter: D=34mm
Two-stage radial compressor
Power consumption: 1.000W
Max. Flow rate: 180m/h
Max. Head: 235mbar
Speed: 1.000...16.000min-1 
Displayed / measuring ranges
Flow rate: 0...120m/h
Temperature: 2x 0...100C
Differential pressure (stage 1 / stage 2): 0...350mbar
Electrical power consumption: 0...1.000W
Speed (compressor): 0...21.000min-1
Dimensions and Weight:
LxWxH: 670x340x530mm
Weight: 20kg.