Powdered coal with the screen analysis given below as “Feed” is fed to a vibrating 48-mesh screen in an attempt to remove the undesired fine material. When the screen was new the oversize and undersize analyses were as listed under columns head “New.” After 3 months of operation, the analyses are as head “Old.” What is the effectiveness of the screen (a) when new and (b) when old? * Use the effectiveness equation by Brown.
Powdered coal with the screen analysis given below as “Feed” is fed to a vibrating 48-mesh screen in an attempt to remove the undesired fine material. When the screen was new the oversize and undersize analyses were as listed under columns head “New.” After 3 months of operation, the analyses are as head “Old.” What is the effectiveness of the screen (a) when new and (b) when old? * Use the effectiveness equation by Brown.
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Question
Powdered coal with the screen analysis given below as “Feed” is fed to a vibrating
48-mesh screen in an attempt to remove the undesired fine material. When the
screen was new the oversize and undersize analyses were as listed under columns
head “New.” After 3 months of operation, the analyses are as head “Old.” What is the
effectiveness of the screen (a) when new and (b) when old?
* Use the effectiveness equation by Brown.
Transcribed Image Text:Screen Analyses-Mass Fractions
Oversize
Undersize
Mesh
Feed
New
Old
New
Old
3+ 4
0.010
0.022
0.012
0.014
....
....
4 + 6
0.027
0.031
....
6 + 8
8 + 10
0.063
0.078
0.088
....
....
0.081
0.100
0.112
....
....
10 + 14
0.102
0.165
0.126
0.142
0.229
....
....
14 + 20
0.204
....
....
20 + 28
0.131
0.162
0.182
....
....
28 + 35
0.101
0.125
0.104
0.093
....
35 + 48
0.095
0.117
0.029
0.065
0.171
0.186
....
48 + 65
0.070
0.025
0.246
65 + 100
0.047
0.015
0.008
0.183
0.146
0.111
100 + 150
0.031
0.005
0.141
....
150 + 200
0.020
0.105
0.071
....
....
200
0.062
0.325
0.222
....
....
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