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Technical Session - Tech#-05 - US Wheat Associates

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<strong>US</strong>E A SPREADSHEET!<br />

Feedrate 1 kg/sec 3,600 kg/hr<br />

mixing rate 2.5 kg/kg air<br />

Velocity 22 m/sec<br />

Density 1.2 kg/m3<br />

Volume 0.3333333 m3/sec<br />

Volume in mm3 333333333 mm3/sec<br />

=SQRT((B8/(PI()*(B5*10000))))<br />

Given:<br />

Feedrate, velocity and air<br />

density – you can easily<br />

work out the pipe diameter.<br />

Call the airport if you need<br />

to know the air density on<br />

any particular day.<br />

The density of air under<br />

standard conditions is<br />

1.239 kg per cubic meter<br />

under standard conditions.<br />

(16 deg C at sea level)<br />

Radius 70.2765 mm<br />

Diameter 140.553 mm<br />

22

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