flour mill has been required to install particulate control equipment to remove 90% of its emissions. A testing firm has determined a size distribution of the flour as follows: Size range (micro-meters) mass percent in size range  0-2 10 2-10 20 10-20 20 20-40 25 40-70 20 >70 5   A consulting firm, B.S. Schusters, Inc., has recommended a two stage cyclone (two cyclones i

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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A flour mill has been required to install particulate control equipment to remove 90% of its emissions. A testing firm has determined a size distribution of the flour as follows:

Size range (micro-meters) mass percent in size range 

0-2

10
2-10 20
10-20 20
20-40 25
40-70 20
>70 5

 

A consulting firm, B.S. Schusters, Inc., has recommended a two stage cyclone (two cyclones in series) for this problem, and has come up with the following design: 

Wi = 20 inches, Hi = 30 inches, Ne = 8 turns, Vi = 70 ft/sec, Pp = 62.4 1bm/ft3

The viscosity of the air is 1.2 x 10-5 1bm/ft sec. Verify or refute this recommendation. 

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