For the following particle size distribution, calculate the efficiency of a Lapple conventional cyclone with a body diameter of 0.5m. the particulate density= 1200kg/m3, gas density= 0.9kg/m3, gas velocity= 0.06kg/m-hr, inlet gas velocity=25m/s. Assuming that the efficiency of the above cyclone is 90%, Calculate the new efficiency if the (a) inlet gas velocity reduces to 15m/s, (b) particulate density changes to 1000kg/m3. Size Range, nm Mass percent in size Range0-43.04-1010.010-2030.020-4040.040-8015.0>802.0 Trial QuestionFor the following particle size distribution, calculate the efficiency of a Lapple conventionalcyclone with a body diameter of 0.5m. the particulate density= 1200kg/m³, gas density=0.9kg/m³, gas velocity= 0.06kg/m-hr, inlet gas velocity=25m/s.Assuming that the efficiency of the above cyclone is 90%, Calculate the new efficiency if the (a)inlet gas velocity reduces to 15m/s, (b) particulate density changes to 1000kg/m³.Size Range, nm0-44-1010-2020-4040-80>80Mass percent in size Range3.010.030.040.015.02.0

Given; μg =0.06 kg/m.hr = 1.67×10-5 kg/m.sW = 0.25D = 0.250.5 = 0.125 m

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Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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For the following particle size distribution, calculate the efficiency of a Lapple conventional
cyclone with a body diameter of 0.5m. the particulate density= 1200kg/m3
, gas density=
0.9kg/m3
, gas velocity= 0.06kg/m-hr, inlet gas velocity=25m/s.
Assuming that the efficiency of the above cyclone is 90%, Calculate the new efficiency if the (a)
inlet gas velocity reduces to 15m/s, (b) particulate density changes to 1000kg/m3.
Size Range, nm Mass percent in size Range
0-4
3.0
4-10
10.0
10-20
30.0
20-40
40.0
40-80
15.0
>80
2.0

Trial Question
For the following particle size distribution, calculate the efficiency of a Lapple conventional
cyclone with a body diameter of 0.5m. the particulate density= 1200kg/m³, gas density=
0.9kg/m³, gas velocity= 0.06kg/m-hr, inlet gas velocity=25m/s.
Assuming that the efficiency of the above cyclone is 90%, Calculate the new efficiency if the (a)
inlet gas velocity reduces to 15m/s, (b) particulate density changes to 1000kg/m³.
Size Range, nm
0-4
4-10
10-20
20-40
40-80
>80
Mass percent in size Range
3.0
10.0
30.0
40.0
15.0
2.0

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