Two Stage Axial Fan
Categories: Engineering Lab EquipmentAxial fans are connected in series in plants to increase the pressure. In theory, connecting two fans in series doubles the pressure increase.The trainer allows the investigation of a two-stage axial...
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Description
Axial fans are connected in series in plants to increase the pressure. In theory, connecting two fans in series doubles the pressure increase.
The trainer allows the investigation of a two-stage axial fan. A measuring device is used to determine the pressure and velocity distribution.
The trainer includes a measuring section with two identical axial fans. The carefully designed nozzle contour and a flow straightener at the air inlet ensure a uniform velocity distribution with little turbulence in the measuring section. The rotors are equipped with individually adjustable blades to change the angle of attack. The fans are equipped with outlet guide vane systems. These guide mechanisms redirect the angular momentum of the outflow in the axial direction and allow an increase in pressure. A pipe bend may optionally be installed to rotate the flow at the outlet of the measuring section. One of the fans can be removed from the measuring section so that the remaining fan can be studied in individual operation.
Learning Objectives/Experiments
Determining the fan characteristic
Series configuration or individual operation of axial fans
Determining the energy balance
Determining the radial pressure and velocity distribution on rotor and guide vane system by means of a probe
Effect of the blade position
Features
Two axial fans in series configuration or in individual operation
Three-hole probe for determining pressure and velocity profile
Specification
Investigate two-stage axial fan
2 identical single-stage fans in series configuration or individual operation
Individually adjustable blades
Fans both with variable speed via frequency converter
Flow-optimised nozzle and flow straightener for smooth, low-turbulence flow
Air flow in the pipe section can be adjusted via throttle valve
Optional pipe bend at the outlet for flow deflection
Measuring device with three-hole probe for determining the differential pressure on rotor and guide vane system
Sensors for pressure and temperature upstream and downstream of each fan
Volumetric flow rate measured via inlet nozzle
Technical data
2 fans
drive motor rated output: 3,45kW
max. pressure difference: 798Pa
speed: 0…2850min-1
blade angle adjustable up to 39°
Measuring section inner diameter: 400mm
Measuring ranges
temperature: 0…100°C
differential pressure: ±25mbar
radial position of the probe: 100…200mm
400V, 50Hz, 3 phases
400V, 60Hz, 3 phases
quick overview :
Axial fans are connected in series in plants to increase the pressure. In theory, connecting two fans in series doubles the pressure increase.
The trainer allows the investigation of a two-stage axial fan. A measuring device is used to determine the pressure and velocity distribution.
The trainer includes a measuring section with two identical axial fans. The carefully designed nozzle contour and a flow straightener at the air inlet ensure a uniform velocity distribution with little turbulence in the measuring section. The rotors are equipped with individually adjustable blades to change the angle of attack. The fans are equipped with outlet guide vane systems. These guide mechanisms redirect the angular momentum of the outflow in the axial direction and allow an increase in pressure. A pipe bend may optionally be installed to rotate the flow at the outlet of the measuring section. One of the fans can be removed from the measuring section so that the remaining fan can be studied in individual operation.
Learning Objectives/Experiments
Determining the fan characteristic
Series configuration or individual operation of axial fans
Determining the energy balance
Determining the radial pressure and velocity distribution on rotor and guide vane system by means of a probe
Effect of the blade position
Features
Two axial fans in series configuration or in individual operation
Three-hole probe for determining pressure and velocity profile
Specification
Investigate two-stage axial fan
2 identical single-stage fans in series configuration or individual operation
Individually adjustable blades
Fans both with variable speed via frequency converter
Flow-optimised nozzle and flow straightener for smooth, low-turbulence flow
Air flow in the pipe section can be adjusted via throttle valve
Optional pipe bend at the outlet for flow deflection
Measuring device with three-hole probe for determining the differential pressure on rotor and guide vane system
Sensors for pressure and temperature upstream and downstream of each fan
Volumetric flow rate measured via inlet nozzle
Technical data
2 fans
drive motor rated output: 3,45kW
max. pressure difference: 798Pa
speed: 0…2850min-1
blade angle adjustable up to 39°
Measuring section inner diameter: 400mm
Measuring ranges
temperature: 0…100°C
differential pressure: ±25mbar
radial position of the probe: 100…200mm
400V, 50Hz, 3 phases
400V, 60Hz, 3 phases
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