Axial fans are used to transport gases. The medium to be transported is drawn in axially to the drive shaft of the axial fan by the rotation of the rotor. The medium flows through the rotor and is discharged axially behind the rotor.
The experimental unit provides the basic experiments to get to know the operating behaviour and the important characteristic variables of axial fans.
It features an axial fan with variable speed via an integrated controller, an intake pipe and a delivery pipe. The transparent intake and delivery pipes are fitted with guide plates for flow guidance. A flow straightener in the intake pipe serves to calm the air. This enables precise measurements even with heavily reduced operation. 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 an axial fan
- Recording the fan characteristic (differential pressure as a function of the flow rate)
- Effect of the rotor speed on the pressure
- Effect of the rotor speed on the flow rate
- Stall
- Determination of hydraulical power output and efficiencies
Features
- Illustrative model of an axial fan
- 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 Specification
- Intake pipe
- Inner diameter: 110mm
- Length: 275mm
- Delivery pipe
- Inner diameter: 110mm
- Length: 310mm
- Axial fan
- Power consumption: 90W
- Nominal speed: 9500min-1
- Max. Volumetric flow rate: approx. 600m3/h
- Max. Pressure difference: approx. 700Pa
- Measuring ranges
- Differential pressure: 0…1800Pa
- Flow rate: 0…1000m3/h
- Temperature: 0…100°C
- Speed: 0…9999min-1
- Power consumption: 0…500W
- 230V, 50Hz, 1 phase
- 230V, 60Hz, 1 phase; 120V, 60Hz, 1 phase
