p.561 in Henry and Heinke. Determine: (a) the lead oxide (sg = 8.0) particle emi
ID: 1828074 • Letter: P
Question
p.561 in Henry and Heinke.
Determine: (a) the lead oxide (sg = 8.0) particle emission rate (kg/s) from a process and (b) the overall collection efficiency of a particle control device given the following particle statistics:
Average
diameter
for class
(um)
Number
(s-1 )
Number
(%)
Cumulative
(%)
Precipitator
removal
efficiency
(%)
1.0
5.0
10.0
20.0
40.0
48 x 10 9
80 x 10 9
112 x 10 9
48 x 10 9
32 x 10 9
15
25
35
15
10
15
40
75
90
100
40
40
80
90
99
Average
diameter
for class
(um)
Number
(s-1 )
Number
(%)
Cumulative
(%)
Precipitator
removal
efficiency
(%)
1.0
5.0
10.0
20.0
40.0
48 x 10 9
80 x 10 9
112 x 10 9
48 x 10 9
32 x 10 9
15
25
35
15
10
15
40
75
90
100
40
40
80
90
99
Explanation / Answer
Here's your full solution:
Part a)
Particle emission rate:
For 1 um=8/48*10^9=1.6*10^-10 kg/s
For 5um=8/80*10^9=1*10^-10 kg/s
For 10um=8/112*10^9=7.14*10^-11 kg/s
For 20um=8/48*10^9=1.6*10^-10 kg/s
For 40 um=8/32*10^9=2.5*10^-10 kg/s
Part b)B)overall collection efficency=60+60+20+10+1/5
=30.2%
SInce first is 60 because removal efiicency is 40 so 100-40=60 so like this we have evaluated all the rest.!!
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