Technology

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2. Axial flow fan is basically a device that works on the
principle of increasing the total pressure applied on air in a
device. By applying pressure on the air, the Axial flow fan
moves the air in a direction parallel to the shaft. The shaft
is the place where the blades of the fan are mounted on the
main axle. The fan is designed in such a way that the
propeller maintains a pressure difference and thus it
retains the flow of air across the fan blades. the blades of
the propeller are made up of aluminum alloy or wood and
provide good performance. Thus as they are used in varied
conditions we should pay attention to the Criteria for
selecting the proper axial flow fans.
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3. Many parameters are to be kept in mind for selecting the
proper fan fit for your use:
• We need to confirm that the fan brake horse power (BHP) is low enough
that when environmental , drive and the losses from the motor are added to
it the HP does not exceed.
• We need to be sure that the horse power per blade or known as the
mechanical unit is not exceeded with more blades or more power imparted
to the system.
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4. • Check whether the temperature at the fan exceeds the maximum fan
operating temperature. If it does this fan could lead to over heating and
thus is not desirable.
• We need to duly calculate the blade frequency. The blade frequency is
an important measure of the performance of the fan.
• We also need to calculate the beam passing frequency.
• Lastly, also calculate the 1x harmonic speed of fan. It should be such
that the fan could work at its optimum efficiency.
• Also need to check the noise created by the fan with respect to the noise
limit specifications. This level is referred to as sound pressure level. As,
one could understand extra noise can produce hindrance in the working
of any device thus this parameter in very important.
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5. Axial flow fans are a very important part of any industry today.
Their uses in all industries are immense. They are used in jets to
even small and tiny appliances.
According to the different specifications uses are:
• Mxflo: Engineered to fit Mahle T65 viscous clutch
• Sickle: Radiators, compressors, generators, engine cooling
& refrigeration
• Increasing arc: Construction, Engine Power Units
• Pressure max: Tier 4/Stage III B engine cooling
• True Reversible: Wood drying kilns, Food Processing,
Radiators
• Airfoil: Cooling towers, engine cooling, HVAC, Refrigeration,
engine cooling
• Broad Profile: Cooling Towers, Coil Applications,
Condensers, Refrigeration, Ventilation
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