Experiments With A Radial Compressor .

Experiments with a Radial Compressor

Technical Description of Experiments with a Radial Compressor               

Radial compressors are used to compress gases. 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 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 air flow is adjusted by a throttle valve at the end of the delivery pipe. 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. The microprocessor-based measuring technique is well protected in the housing.

Specification of Experiments with a Radial Compressor

  • 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
  • Throttle valve for adjusting the air flow in the delivery pipe
  • Protecting plate at air inlet for undisturbed air flow
  • Determination of flow rate via intake nozzle
  • Display of differential pressures, flow rate, speed, electrical power consumption and hydraulical power output, temperatures and efficiency
  • Microprocessor-based measuring technique

Technical Data of Experiments with a Radial Compressor             

Intake pipe

  • Inner diameter: D=44mm
  • Length: L=84mm

Delivery pipe

  • Inner diameter: D=34mm
  • Length: L=200mm

Two-stage radial compressor


  • Power consumption: 1.000W
  • Speed: 1.000...16.000min-1
  • Max. Flow rate: 180m³/h
  • Max. Head: 235mbar


Displayed / measuring ranges


  • Differential pressure (stage 1 / stage 2): 0...350mbar
  • Flow rate: 0...120m³/h
  • Temperature: 2x 0...100°C
  • Speed (compressor): 0...21.000min-1
  • Electrical power consumption: 0...1.000W


Dimensions and Weight of Experiments with a Radial Compressor          


  • LxWxH: 670x340x530mm
  • Weight: approx. 20kg

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