1 water pumping system design report. 2 table of contents 1.0market demand (identification of human...
TRANSCRIPT
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WATER PUMPING SYSTEM
DESIGN REPORT
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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)– An existing municipal supply– A new borehole supply to replace existing supply
• 4.0 PRELIMINARY SELECTION OF PIPE SIZE TO MEET DEMAND• 5.0 AVAILABLE PIPE MATERIALS AND STANDARDS• 6.0 PIPELINE CHARACTERISTIC CURVE (Review of theory))• 7.0 CHARACTERISTIC CURVE FOR THE SELECTED PIPELINE (Actual)• 8.0 SELECTION OF PUMP TYPE• 9.0 SELECTION OF PUMP• 10.0 SUCTION ARRANGEMENTS AND DESIGN• 11.0 SURGE PRESSURE AND SURGE CONTROL
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CONCEPT 1SPRING SOURCE
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CONCEPT 2BOREHOLE SOURCE
• Concept 2
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CONCEPT 3LAKE/RIVER SOURCE
Concept 3
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WATER SUPPLY SERVICES FOR BUILDING-PIPEWORK SPECIFICATIONSGENERAL SPECIFICATIONS
PIPEWORK SPECIFICATIONSLOCATION OF PIPEWORK
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GENERAL SPECIFICATIONSDRAWINGS
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STEEL (GI) STANDARDS
• KENYA STANDARD
• KS 06 259: 1981 Specification for steel pipes for water and gas suitable for screwing
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UPVC PIPE STANDARD
• KENYA STANDARD
• KS 149: PART 2: 2000 Specification for unplasticised polyvinyl chloride (UPVC) for cold water services
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MOODY DIAGRAM
• Generates Characteristic data of pipeline
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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 PipelineDiameter Thickness Diameter Roughnessroughness viscousity Lengthd (mm) t (mm) d (mm) k (mm) k/d metres
10 1 8 0.1 0.013 0.000001 1000
Q d V Re Hf Hf
m3/hour metre m/sec MoW/m. MoW1 0.008 5.5 44232 0.04 7.791 7791
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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 PipelineDiameter Thickness DiameterRoughnessroughnessviscousity Lengthd (mm) t (mm) d (mm) k (mm) k/d metres
75 5.6 63.8 0.1 0.0016 0.000001 1000
Q d V Re 4f Hf Hf
m3/hour metre m/sec MoW/m. MoW5 0.0638 0.4 27732 0.022 0.003 3.315 0.0638 1.3 83195 0.022 0.030 29.920 0.0638 1.7 110927 0.022 0.053 53.125 0.0638 2.2 138659 0.022 0.083 83.030 0.0638 2.6 166390 0.022 0.120 119.535 0.0638 3.0 194122 0.022 0.163 162.740 0.0638 3.5 221854 0.022 0.213 212.5
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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 PipelineDiameter Thickness DiameterRoughnessroughnessviscousity Lengthd (mm) t (mm) d (mm) k (mm) k/d metres
125 9.3 106.4 0.1 0.00094 0.000001 1000
Q d V Re 4f Hf Hf
m3/hour metre m/sec MoW/m. MoW30 0.1064 0.9 99772 0.02 0.008 8.440 0.1064 1.3 133029 0.02 0.015 15.050 0.1064 1.6 166286 0.02 0.02 23.460 0.1064 1.9 199543 0.02 0.03 33.780 0.1064 2.5 266058 0.02 0.06 59.990 0.1064 2.8 299315 0.02 0.08 75.8
100 0.1064 3.1 332572 0.02 0.09 93.6
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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 PipelineDiameter Thickness DiameterRoughnessroughnessviscousity Lengthd (mm) t (mm) d (mm) k (mm) k/d metres
250 18.6 212.8 0.1 0.00047 0.000001 1000
Q d V Re 4f Hf Hf
m3/hour metre m/sec MoW/m. MoW120 0.2128 0.9 199543 0.017 0.00 3.6150 0.2128 1.2 249429 0.017 0.01 5.6200 0.2128 1.6 332572 0.017 0.01 9.9220 0.2128 1.7 365830 0.017 0.01 12.0250 0.2128 2.0 415716 0.017 0.02 15.5300 0.2128 2.3 498859 0.017 0.02 22.4350 0.2128 2.7 582002 0.017 0.03 30.5
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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 PipelineDiameter Thickness DiameterRoughnessroughnessviscousity Lengthd (mm) t (mm) d (mm) k (mm) k/d metres
280 20.8 238.4 0.1 0.00042 0.000001 1000
Q d V Re 4f Hf Hf
m3/hour metre m/sec MoW/m. MoW160 0.2384 1.0 237488 0.016 0.00 3.4200 0.2384 1.2 296860 0.016 0.01 5.3250 0.2384 1.6 371075 0.016 0.01 8.3300 0.2384 1.9 445290 0.016 0.01 11.9350 0.2384 2.2 519505 0.016 0.02 16.2400 0.2384 2.5 593720 0.016 0.02 21.2450 0.2384 2.8 667935 0.016 0.03 26.9
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KS 06 149-UPVC (630 MM-PN 16)
• CHARACTERISTIC DATA: for pipe size, material, pressure capacity, and length
External Wall Internal Internal Relative Kinematic PipelineDiameter Thickness DiameterRoughnessroughnessviscousity Length
d (mm) t (mm) d (mm) k (mm) k/d metres630 42.6 544.8 0.1 0.00018 0.000001 1000
Q d V Re 4f H f H f
m3/hour metre m/sec MoW/m. MoW400 0.5448 0.5 259807 0.014 0.00 0.3500 0.5448 0.6 324759 0.014 0.00 0.5600 0.5448 0.7 389710 0.014 0.00 0.7700 0.5448 0.8 454662 0.014 0.00 0.9800 0.5448 1.0 519614 0.014 0.00 1.2900 0.5448 1.1 584566 0.014 0.00 1.51000 0.5448 1.2 649517 0.014 0.00 1.9
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CHARACTERISTIC CURVE OF PIPELINE
2
52*
*2*
*16Q
dg
LHH s
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OPERATING SPEED-1450 RPM
• PUMP TYPE SELECTION GUIDEDISCHARGE FLOW DESIRED IN M3/SEC
0.0001 0.001 0.01 0.1 1 2 3 4 5 6 7 8 9 10
HEAD POSITIVE DISPLACEMENT OR CENTRIFUGAL TYPE PUMPS INDICATED FOR PERFORMANCE IN THIS RANGEmwH MULTI-STAGE TYPE PUMPS INDICATED
200 0 1 3 9 27 39 47 55 61 67 72 77 82 86
190 0 1 3 9 28 40 49 57 63 69 75 80 85 90
180 0 1 3 9 30 42 51 59 66 72 78 83 89 93
170 0 1 3 10 31 44 53 62 69 75 81 87 92 97
160 0 1 3 10 32 46 56 64 72 79 85 91 97 102
150 0 1 3 11 34 48 59 68 76 83 90 96 101 107
140 0 1 4 11 36 50 62 71 80 87 94 101 107 113
130 0 1 4 12 38 53 65 75 84 92 100 107 113 119
120 0 1 4 13 40 57 69 80 89 98 106 113 120 126
110 0 1 4 13 43 60 74 85 95 105 113 121 128 135
100 0 1 5 15 46 65 79 92 103 112 121 130 138 145
90 0 2 5 16 50 70 86 99 111 122 131 140 149 157
80 1 2 5 17 54 77 94 108 121 133 143 153 163 171
70 1 2 6 19 60 85 104 120 134 147 159 169 180 189
60 1 2 7 21 67 95 116 135 150 165 178 190 202 213
50 1 2 8 24 77 109 134 154 172 189 204 218 231 244
40 1 3 9 29 91 129 158 182 204 223 241 258 273 288
30 1 4 11 36 113 160 196 226 253 277 299 320 339 358
20 2 5 15 48 153 217 266 307 343 376 406 434 460 485
10 3 8 26 82 258 365 447 516 577 632 682 729 774 815
5 4 14 43 137 434 613 751 867 970 1062 1147 1227 1301 1371
1 15 46 145 459 1450 2051 2511 2900 3242 3552 3836 4101 4350 4585
CENTRIFUGAL MIXED AXIAL FLOW TYPE PUMPS INDICATED FOR PERFORMANCE IN THIS RANGE
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OPERATING SPEED-2900 RPM
• PUMP TYPE SELECTION GUIDEDESIRED DISCHARGE FLOW IN M3/SEC
0.0001 0.001 0.01 0.1 1 2 3 4 5 6 7 8 9 10
HEAD MULTI-STAGE TYPE OR CENTRIFUGAL TYPE PUMPS MIXED FLOW TYPE PUMPS INDICATEDmwH POSITIVE DISPLACEMENT
200 1 2 5 17 55 77 94 109 122 134 144 154 164 172
190 1 2 6 18 57 80 98 113 127 139 150 160 170 179
180 1 2 6 19 59 83 102 118 132 145 156 167 177 187
170 1 2 6 19 62 87 107 123 138 151 163 174 185 195
160 1 2 6 20 64 91 112 129 144 158 171 182 193 204
150 1 2 7 21 68 96 117 135 151 166 179 191 203 214
140 1 2 7 23 71 101 123 143 159 175 189 202 214 225
130 1 2 8 24 75 107 130 151 168 185 199 213 226 238
120 1 3 8 25 80 113 139 160 179 196 212 226 240 253
110 1 3 9 27 85 121 148 171 191 209 226 241 256 270
100 1 3 9 29 92 130 159 183 205 225 243 259 275 290
90 1 3 10 31 99 140 172 198 222 243 263 281 298 314
80 1 3 11 34 108 153 188 217 242 266 287 307 325 343
70 1 4 12 38 120 169 208 240 268 294 317 339 359 379
60 1 4 13 43 135 190 233 269 301 330 356 380 404 425
50 2 5 15 49 154 218 267 308 345 378 408 436 463 488
40 2 6 18 58 182 258 316 365 408 447 482 516 547 577
30 2 7 23 72 226 392 452 506 554 599 640 679 715
20 3 10 31 97 307 434 531 613 686 751 811 867 920 970
10 5 16 52 163 516 729 893 1031 1153 1263 1364 1459 1547 1631
5 9 27 87 274 867 1227 1502 1735 1939 2124 2295 2453 2602 2743
1 29 92 290 917 2900 4101 5023 5800 6485 7104 7673 8202 8700 9171
CENTRIFUGAL AXIAL FLOW TYPE PUMPS INDICATED FOR PERFORMANCE IN THIS RANGE
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ELECTRICAL DISTRIBUTION BOARD
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END
• WATER PUMPING SYSTEM
• DESIGN REPORT