Air Flow Bench

Air Flow Bench .

Description of Air Flow Bench:  

The Air Flow Bench consists of a welded steel frame, Air Flow Bench - General assembly with accessories mounted on castors, and provides two work surfaces for experiments and integral storage space. A tangential fan (i.e. fitted with a narrow chord centrifugal impellor), directly driven from a single phase induction motor, provides the necessary air flow for experiments. The fan is capable of providing a flow of 500 litres/second at a static pressure rise of 800 Pascals. The ductwork supplied with the Air Flow Bench is manufactured in aluminium sections assembled by deep spigoted sockets, sealed by ‘O’ rings and clamped by quickrelease over-centre toggle latches. The design of the ductwork allows various configurations to be assembled including the easy installation of the optional additional equipment available from DIDAC. The duct work includes flow straighteners and an adjustable discharge valve. An electrical enclosure is mounted on the upper work surface and contains the fan contactor, fan start and stop pushbuttons, and provides electrical power for optional additional equipment. The instrumentation supplied with the Air Flow Bench comprises a digital manometer, barometer, conical inlet flow measuring device, and pitot static tube for traversing the duct. An optional data logging system with various modules is available to provide 0-10V dc analogue outputs of all measurements for interfacing to a computer system.

Experimental Capability of Air Flow Bench:    

1. Fan characteristics
2. Air flow in ducts
3. Air flow measurement
4. Bernoulli’s experiment
5. Flow around a bend
6. Free jet studies
7. Tube wall to air convective heat transfer
8. Heat transfer in a shell and tube heat exchanger
9. Flow around a cylinder
10. Lift and drag of an aerofoil
11. Flow visualization
12. Boundary layer growth

Specification of Air Flow Bench: