SR280 Experiments With A Radial Fan Teaching Equipment Hydrodynamics Lab
1. Description Radial fans are used to transport gases with non-excessive pressure differences. The medium is drawn in axially to the drive shaft of the radial fan and is deflected by 90° by the rotation of the rotor and discharged radially. The experimental unit provides the basic experiments to get to know the operating behaviour and the most important characteristic variables of radial fans.
features a radial fan with variable speed via a frequency converter, an intake pipe and a delivery pipe. The transparent intake pipe is fitted with guide plates for flow guidance and with a flow straightener 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. To demonstrate the effect of different blade shapes two rotors are included in the scope of delivery: one rotor with forward curved blades and one with backward curved blades. The rotors are easily interchangeable.
2. Technical details Specification Functioning and operating behaviour of a radial fan Radial fan with 3-phase AC motor Variable speed via frequency converter Transparent intake and delivery pipes Throttle valve to adjust the air flow in the delivery pipe Interchanging rotors: 1 rotor with forward curved blades and 1 rotor with backward curved blades Determination of flow rate 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 Technical data Intake pipe Inner diameter: 90mm Length: 430mm Delivery pipe Inner diameter: 100mm Length: 530mm Radial fan Power consumption: 110W Nominal speed: 2800min-1 Max. volumetric flow rate: 480m3/h Max. pressure difference: 300Pa
Measuring ranges Differential pressure: 0...1800Pa Flow rate: 0...1000m3/h Temperature: 0...100°C Speed: 0...3300min-1 El. power consumption: 0...250W
