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Assignment-solution5 - Assignment#5 Solution#1 Given data...

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Assignment #5 Solution #1: Given data: Diameter of the spherical particle = 1 micron ( ) Specific gravity of particle = 4 ( Assuming (For air at 1 atm and 20 ) (a) According to stokes law, terminal setting velocity is given by: (b) Cunningham correction factor (C) = where, A = 1.728 ʎ = 0.07 Now,
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Solution #2: Given data: Diameter of the particles (D) = 1 mm Wind blowing velocity = 10 mi/h = 4.4704 m/s Assume the stalk height to be 'h', then distance from the centerline stack to the plant's property is '5h'. Also assume, Since the particle size is big we will ignore 'C' = 27.6 m Terminal setting velocity = = 60.52 Since is very high, most of the sand will fall on plants property.
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Solution #3 : Inlet width, Cut diameter, = for block flow N = 5 (Reference: chapter 9, Air Pollution Control Engineering), Kg/ for air at 1 atm and 20 Kg/ Assumption = = 3.28 * m = 3.28 μm D = 1μm Collection efficiency is given by the equation, = = 0.085 = 8.5%
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Solution #4: N=0.25 * H = 1cm*1cm Q = 1 L/s V = = = 10 m/s μ = 1.8* Kg/m.s for air at 1atm and 20 = ( for block flow Assume = 2000 Kg/ = ( = 7.18 * m = 7.2 μm
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