Air Flow Studies
- The unit is self-contained and only requires connection to a single-phase electrical supply.
- Turbulence in the 80mm diameter test pipe is minimised by locating the pipe at the inlet of the centrifugal fan.
- A profiled bellmouth inlet prevents
air-separation from the wall of the pipe at the entrance and
straightening vanes suppress the formation of vortices.
- Tappings along the test pipe allow the pressure gradient to be measured with air velocity variable up to a maximum of 35m/s.
- A Pitot tube can be traversed across
the pipe at five locations to allow boundary layer growth/development of
velocity profile to be examined.
- Air flowrate is determined from differential pressure measurements across an orifice plate or two different inlet nozzles.
- Different bends and elboes can be fitted to allow frictional losses in fittings to be compared.
- Air jet dispersion experiments are carried out on the discharge side of the fan.
- A Pitot tube can be traversed laterally
(across) and longitudinally (along) the jet to measure the changes in
velocity as the jet disperses.
- All pressure measurements are performed using a bank of fourteen manometer tubes that can be inclined to increase sensitivity.
- An instruction manual is supplied that
describes how to perform the air flow experiments and interpret the
results, as well as how to install, commission and maintain the
equipment.
Technical Details :
Item |
Value |
Centrifugal fan capacity: |
218 l/s at STP |
Pipe velocity range: |
0-35m/s |
Inlet pipe: |
dia.80mm
length 2.75m |
Interchangeable nozzles: |
dia.50mm
and 80mm |
Internal pipe orifice: |
dia.50mm |
Jet discharge pipe orifice: |
dia.30mm |
Jet traverse range
(downstream lengthxwidth): |
600mm x 140mm |
Manometer range: |
0 – 283mm H2O |
Air Flow Studies india ALTEC Laboratory Equipments and ALTEC Laboratory Instruments Tenders.