Radial compressors are used to compress gases. The medium is drawn in axially to the drive shaft by the rotation of the rotor and flows through the rotor 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.
It features a two-stage radial compressor with variable speed via a frequency converter, an intake pipe and a delivery pipe. The intake and delivery pipes are transparent. A protective plate placed in front of the inlet of the intake pipe prevents larger objects from being drawn in or the clogging of the intake opening. The air flow is adjusted by a throttle valve at the end of the delivery pipe.
Learning Objectives And Experiments
- Operating behaviour and characteristic variables of a radial compressor
- Recording of the compressor curve for both stages
- Effect of the rotor speed on the pressure
- Effect of the rotor speed on the flow rate
- Distribution of stage pressure ratios
- Effect of compression on the temperature increase
- Determination of hydraulical power output and efficiencies
Features
- Illustrative model of a radial compressor
- Transparent delivery pipe and intake pipe
- Software for data acquisition, visualisation and operation
- Part of the Labline fluid energy machines
Specification
- Functioning and operating behaviour of an axial fan
- Axial fan with electronically commutated drive motor
- Variable speed via integrated controller
- Transparent intake and delivery pipes
- Throttle valve to adjust the air flow in the delivery pipe
- Determination of flow rate via intake nozzle
- Display of differential pressure, flow rate, speed, electrical power consumption and hydraulical power output, temperature and efficiency
- Due to integrated microprocessor-based instrumentation no additional devices with error-prone wiring are required
- Display and evaluation of the measured values as well as operation of the unit via software
Technical data
- Intake pipe
- inner diameter: 44mm
- Delivery pipe
- inner diameter: 34mm
- Two-stage radial compressor
- power consumption: 1000W
- speed: 1000…16000min-1
- max. volumetric flow rate: 180m3/h
- max. pressure difference: 235mbar
- Measuring ranges
- differential pressure (stage 1 / stage 2): 0…350mbar
- flow rate: 0…120m3/h
- temperature: 2x 0…100°C
- speed (compressor): 0…21000min-1
- electrical power consumption: 0…1000W
- 230V, 50Hz, 1 phase
- 230V, 60Hz, 1 phase; 120V, 60Hz, 1 phase
