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A cyclone separator is being used to remove particulates from a gas stream. The current removal efficiency is 96% for an air flow rate through the separator equal to 18 m3/s. Due to a process change, the air flow rate is expected to increase to 22 m3/s.
What percent removal efficiency may be expected under the new condition?
Removal efficiency (R, in %) has been expressed as an empirical correlation in terms of the ratio (r) of particle diameter (d) to cut diameter (dC), defined as the diameter of particles for which removal efficiency is 50%.
R = 1.5 x - 17.92 x2 + 72.37 x3 - 6
The cut diameter is usually assumed to be inversely proportional to the square root of the air flow rate, i.e., dC = k Q-1/2.
The pipe has an outside diameter of 60mm and an inside diameter of 50mm. Find the torsional moment T if the maxiumum shear stress is 80MPa.
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Determine the design hourly volume for the road below, recommend the K factor first.
The post is embedded into a concrete footing so that it is fixed supported. If the reaction of the concrete on the post can be approximated by the distributed loading, determine the intensity of w1 and w2
A steady-flow compressor is used to compress helium from 15 psia and 70oF at the inlet to 200 psia and 600oF at the outlet. The outlet area and velocity are 0.01 ft2 and 10 ft/s
The cost for maufacturing a component used in intelligent interface converters was $23000 the first year. The company expects the cost to increase by 2% each year. Calculate the presence worth over a 5 year period at an interest rate of 10% per ye..
If a mechanical device requires 450J of work to do 310J of work in lifting what is the efficiency of the device?
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