The diameter of the fan blades of large air-cooled generators
AIR-COOLED GENERATORS Air-cooled generators are produced in two basic configurations: open ventilated (OV) and totallyenclosed water-to-air-cooled (TEWAC) . In the OV design, outside air is drawn directly from outside the unit through filters, passes through the generator and is discharged outside the gener- ator.
AIR-COOLED GENERATORS Air-cooled generators are produced in two basic configurations: open ventilated (OV) and totallyenclosed water-to-air-cooled (TEWAC) . In the OV design, outside air is drawn directly from outside the unit through filters, passes through the generator and is discharged outside the gener- ator.
The blades of the V-fan and L-fan have little twist implying an arbitrary vortex design. The large blade chords of the DL-fan imply a lower noise fan, but a lower static efficiency.
The required parameters of air flow fan are air flow, operating temperature, static pressure, Nominal fan speed, External diameter. The modification in existing fan was done and desired air flow optimum.
This article will discuss characteristics of variable pitch fans under 30 feet (9.1 in) in diameter and less than 150 horsepower (112 Kw). The most typical sizes would be 10 to 14 feet (3.04 -4.3m) in diameter consuming up to 40 horsepower (30 Kw).
Unfortunately, Axial Fans with intake air flowing at right angles to the fan axis, i.e., crosswinds, violates a basic Axial Fan design assumption: Axisymmetric Intake Flow. Modifying the Asymmetric Intake Flow is the key to minimizing ACC Fan Problems.
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