WATER PUMPING SYSTEM
DESIGN REPORT
1
TABLE OF CONTENTS
•
•
•
•
•
•
•
TABLE OF CONTENTS
1.0
MARKET DEMAND (Identification of human need)
Water requirements for students and staff at Main Campus of University of Nairobi
2.0
DEFINITION OF PROBLEM (Specification of requirements to be met by the design)
Quantity of water required, determined from population and per capita consumption
Pressure (total or dynamic) head to be overcome by pumping system. This is determined from (1)
total static head (elevation of suction point relative to delivery point), and (2) friction head loss
(pressure loss due to fluid friction in pipeline). The first element of pressure depends on site
conditions as in terms of location of water source and desired delivery point. The second element
of pressure depends on the pipe size and material selected. Only static head need be determined
at this stage.
3.0
POSSIBLE SOLUTION (Concepts to be considered)
–
–
•
•
•
•
•
•
•
•
4.0
5.0
6.0
7.0
8.0
9.0
10.0
11.0
An existing municipal supply
A new borehole supply to replace existing supply
PRELIMINARY SELECTION OF PIPE SIZE TO MEET DEMAND
AVAILABLE PIPE MATERIALS AND STANDARDS
PIPELINE CHARACTERISTIC CURVE (Review of theory))
CHARACTERISTIC CURVE FOR THE SELECTED PIPELINE (Actual)
SELECTION OF PUMP TYPE
SELECTION OF PUMP
SUCTION ARRANGEMENTS AND DESIGN
SURGE PRESSURE AND SURGE CONTROL
2
CONCEPT 1
SPRING SOURCE
3
CONCEPT 2
BOREHOLE SOURCE
• Concept 2
4
CONCEPT 3
LAKE/RIVER SOURCE
Concept 3
5
WATER SUPPLY SERVICES FOR BUILDING-PIPEWORK SPECIFICATIONS
GENERAL SPECIFICATIONS
PIPEWORK SPECIFICATIONS
LOCATION OF PIPEWORK
GENERAL SPECIFICATIONS
DRAWINGS
3
6
STEEL (GI) STANDARDS
• KENYA STANDARD
• KS 06 259: 1981 Specification for steel
pipes for water and gas suitable for
screwing
7
UPVC PIPE STANDARD
• KENYA STANDARD
• KS 149: PART 2: 2000 Specification for
unplasticised polyvinyl chloride (UPVC) for
cold water services
8
MOODY DIAGRAM
• Generates Characteristic data of pipeline
9
KS 06 149-UPVC (10 MM-PN 16)
• CHARACTERISTIC DATA: for pipe size,
material, pressure capacity, and length
KS 06-149: UPVC 10/1.0-1.6: Class D pipe : Pressure capacity 1.6 Mpa
External
Wall
Internal
Internal Relative Kinematic Pipeline
Diameter Thickness Diameter Roughnessroughness viscousity
Length
d (mm)
t (mm)
d (mm)
k (mm)
k/d
metres
10
1
8
0.1
0.013
0.000001
1000
Q
3
m /hour
1
d
metre
0.008
V
m/sec
5.5
Re
44232

Hf
MoW/m.
0.04
7.791
Hf
MoW
7791
10
KS 06 149-UPVC (75 MM-PN 16)
• CHARACTERISTIC DATA: for pipe size,
material, pressure capacity, and length
KS 06-149: UPVC 75/5.5-1.6: Class D pipe : Pressure capacity 1.6 Mpa
External
Wall
Internal
Internal Relative Kinematic Pipeline
Diameter Thickness DiameterRoughnessroughnessviscousity Length
d (mm)
t (mm)
d (mm)
k (mm)
k/d
metres
75
5.6
63.8
0.1
0.0016
0.000001
1000
Q
m 3/hour
5
15
20
25
30
35
40
d
metre
0.0638
0.0638
0.0638
0.0638
0.0638
0.0638
0.0638
V
m/sec
0.4
1.3
1.7
2.2
2.6
3.0
3.5
Re
27732
83195
110927
138659
166390
194122
221854
4f

0.022
0.022
0.022
0.022
0.022
0.022
0.022
Hf
MoW/m.
0.003
0.030
0.053
0.083
0.120
0.163
0.213
Hf
MoW
3.3
29.9
53.1
83.0
119.5
162.7
212.5
11
KS 06 149-UPVC (125 MM-PN 16)
• CHARACTERISTIC DATA: for pipe size,
material, pressure capacity, and length
KS 06-149: UPVC 125/9.3-1.6: Class D pipe : Pressure capacity 1.6 Mpa
External
Wall
Internal
Internal
Relative Kinematic Pipeline
Diameter Thickness DiameterRoughnessroughnessviscousity Length
d (mm)
t (mm)
d (mm)
k (mm)
k/d
metres
125
9.3
106.4
0.1
0.00094
0.000001
1000
Q
m 3/hour
30
40
50
60
80
90
100
d
metre
0.1064
0.1064
0.1064
0.1064
0.1064
0.1064
0.1064
V
m/sec
0.9
1.3
1.6
1.9
2.5
2.8
3.1
Re
99772
133029
166286
199543
266058
299315
332572
4f

0.02
0.02
0.02
0.02
0.02
0.02
0.02
Hf
MoW/m.
0.008
0.015
0.02
0.03
0.06
0.08
0.09
Hf
MoW
8.4
15.0
23.4
33.7
59.9
75.8
93.6
12
KS 06 149-UPVC (250 MM-PN 16)
• CHARACTERISTIC DATA: for pipe size,
material, pressure capacity, and length
KS 06-149: UPVC 250/18.6-1.6: Class D pipe : Pressure capacity 1.6 Mpa
External
Wall
Internal
Internal Relative Kinematic Pipeline
Diameter Thickness DiameterRoughnessroughnessviscousity Length
d (mm)
t (mm)
d (mm)
k (mm)
k/d
metres
250
18.6
212.8
0.1
0.00047
0.000001
1000
Q
m 3/hour
120
150
200
220
250
300
350
d
metre
0.2128
0.2128
0.2128
0.2128
0.2128
0.2128
0.2128
V
m/sec
0.9
1.2
1.6
1.7
2.0
2.3
2.7
Re
199543
249429
332572
365830
415716
498859
582002
4f

0.017
0.017
0.017
0.017
0.017
0.017
0.017
Hf
MoW/m.
0.00
0.01
0.01
0.01
0.02
0.02
0.03
Hf
MoW
3.6
5.6
9.9
12.0
15.5
22.4
30.5
13
KS 06 149-UPVC (280 MM-PN 16)
• CHARACTERISTIC DATA: for pipe size,
material, pressure capacity, and length
KS 06-149: UPVC 280/20.8-1.6: Class D pipe : Pressure capacity 1.6 Mpa
External
Wall
Internal
Internal Relative Kinematic Pipeline
Diameter Thickness DiameterRoughnessroughnessviscousity Length
d (mm)
t (mm)
d (mm)
k (mm)
k/d
metres
280
20.8
238.4
0.1
0.00042
0.000001
1000
Q
m 3/hour
160
200
250
300
350
400
450
d
metre
0.2384
0.2384
0.2384
0.2384
0.2384
0.2384
0.2384
V
m/sec
1.0
1.2
1.6
1.9
2.2
2.5
2.8
Re
237488
296860
371075
445290
519505
593720
667935
4f

0.016
0.016
0.016
0.016
0.016
0.016
0.016
Hf
MoW/m.
0.00
0.01
0.01
0.01
0.02
0.02
0.03
Hf
MoW
3.4
5.3
8.3
11.9
16.2
21.2
26.9
14
KS 06 149-UPVC (630 MM-PN 16)
• CHARACTERISTIC DATA: for pipe size,
material, pressure capacity, and length
External
Wall
Internal
Internal Relative Kinematic Pipeline
Diameter Thickness DiameterRoughnessroughnessviscousity Length
d (mm)
t (mm)
d (mm)
k (mm)
k/d
metres
630
42.6
544.8
0.1
0.00018
0.000001
1000
Q
m 3/hour
400
500
600
700
800
900
1000
d
metre
0.5448
0.5448
0.5448
0.5448
0.5448
0.5448
0.5448
V
m/sec
0.5
0.6
0.7
0.8
1.0
1.1
1.2
Re
259807
324759
389710
454662
519614
584566
649517
4f

0.014
0.014
0.014
0.014
0.014
0.014
0.014
Hf
MoW/m.
0.00
0.00
0.00
0.00
0.00
0.00
0.00
Hf
MoW
0.3
0.5
0.7
0.9
1.2
1.5
1.9
15
CHARACTERISTIC CURVE OF
PIPELINE
H  Hs 
16 * L
 * 2g * d
2
5
* Q
2
16
OPERATING SPEED-1450 RPM
• PUMP TYPE SELECTION GUIDE
DISCHARGE FLOW DESIRED IN M 3/SEC
HEAD
mwH
200
190
180
170
160
150
140
130
120
110
100
90
80
70
60
50
40
30
20
10
5
1
0.1
0.01
0.001
0.0001
POSITIVE DISPLACEMENT OR
MULTI-STAGE TYPE PUMPS INDICATED
9
3
1
0
9
3
1
0
9
3
1
0
10
3
1
0
10
3
1
0
11
3
1
0
11
4
1
0
12
4
1
0
13
4
1
0
13
4
1
0
15
5
1
0
16
5
2
0
17
5
2
1
19
6
2
1
21
7
2
1
24
8
2
1
29
9
3
1
36
11
4
1
48
15
5
2
82
26
8
3
137
43
14
4
459
145
46
15
MIXED
CENTRIFUGAL
1
27
28
30
31
32
34
36
38
40
43
46
50
54
60
67
77
91
113
153
258
434
1450
8
7
6
5
4
3
2
CENTRIFUGAL TYPE PUMPS INDICATED FOR PERFORMANCE IN THIS RANGE
77
72
67
61
55
47
39
80
75
69
63
57
49
40
83
78
72
66
59
51
42
87
81
75
69
62
53
44
91
85
79
72
64
56
46
96
90
83
76
68
59
48
101
94
87
80
71
62
50
107
100
92
84
75
65
53
113
106
98
89
80
69
57
121
113
105
95
85
74
60
130
121
112
103
92
79
65
140
131
122
111
99
86
70
153
143
133
121
108
94
77
169
159
147
134
120
104
85
190
178
165
150
135
116
95
218
204
189
172
154
134
109
258
241
223
204
182
158
129
320
299
277
253
226
196
160
434
406
376
343
307
266
217
729
682
632
577
516
447
365
1227
1147
1062
970
867
751
613
4101
3836
3552
3242
2900
2511
2051
AXIAL FLOW TYPE PUMPS INDICATED FOR PERFORMANCE IN THIS RANGE
9
10
82
85
89
92
97
101
107
113
120
128
138
149
163
180
202
231
273
339
460
774
1301
4350
86
90
93
97
102
107
113
119
126
135
145
157
171
189
213
244
288
358
485
815
1371
4585
17
OPERATING SPEED-2900 RPM
• PUMP TYPE SELECTION GUIDE
HEAD
mwH
200
190
180
170
160
150
140
130
120
110
100
90
80
70
60
50
40
30
20
10
5
1
DESIRED DISCHARGE FLOW IN M3/SEC
0.0001
0.001
0.01
0.1
1
2
3
4
5
6
7
MULTI-STAGE TYPE OR
CENTRIFUGAL TYPE PUMPS
MIXED FLOW TYPE PUMPS INDICATED
POSITIVE DISPLACEMENT
1
2
5
17
55
77
94
109
122
134
144
1
2
6
18
57
80
98
113
127
139
150
1
2
6
19
59
83
102
118
132
145
156
1
2
6
19
62
87
107
123
138
151
163
1
2
6
20
64
91
112
129
144
158
171
1
2
7
21
68
96
117
135
151
166
179
1
2
7
23
71
101
123
143
159
175
189
1
2
8
24
75
107
130
151
168
185
199
1
3
8
25
80
113
139
160
179
196
212
1
3
9
27
85
121
148
171
191
209
226
1
3
9
29
92
130
159
183
205
225
243
1
3
10
31
99
140
172
198
222
243
263
1
3
11
34
108
153
188
217
242
266
287
1
4
12
38
120
169
208
240
268
294
317
1
4
13
43
135
190
233
269
301
330
356
2
5
15
49
154
218
267
308
345
378
408
2
6
18
58
182
258
316
365
408
447
482
2
7
23
72
226
392
452
506
554
599
3
10
31
97
307
434
531
613
686
751
811
5
16
52
163
516
729
893
1031
1153
1263
1364
9
27
87
274
867
1227
1502
1735
1939
2124
2295
29
92
290
917
2900
4101
5023
5800
6485
7104
7673
CENTRIFUGAL
AXIAL FLOW TYPE PUMPS INDICATED FOR PERFORMANCE IN THIS RANGE
8
9
10
154
160
167
174
182
191
202
213
226
241
259
281
307
339
380
436
516
640
867
1459
2453
8202
164
170
177
185
193
203
214
226
240
256
275
298
325
359
404
463
547
679
920
1547
2602
8700
172
179
187
195
204
214
225
238
253
270
290
314
343
379
425
488
577
715
970
1631
2743
9171
18
19
ELECTRICAL DISTRIBUTION
BOARD
 
  
 
  

   
   

















      

  

 


 
  








 
 
 

 




  

 





 
 

 

 
 
 







 
 














 
 





 





 
 

























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
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
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

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










 




 


 



 

 
      



 







  

 
 





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  

 
  
 
  

   
   


 






  
 
 









   



 

 

























































 

 
 
 



 
  










 
  










 

20
END
• WATER PUMPING SYSTEM
• DESIGN REPORT
21