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8/11/2019 11 Sensitivity Pipe Sizing Analysis
1/16
Calculations for 5 & 10 m of Top Water Level
Distance /
m
Initial
Design
Value
Latest Rvsd
Value VW
Values
Ppsd by
Pjt
Values
Ppsd
by Pjt
Values
Ppsd by
Pjt
Values
Ppsd
by Pjt
Values
Ppsd
by Pjt
Values
Ppsd by
Pjt
Values
Ppsd by Pjt
Values
Ppsd by Pjt
Values
Ppsd by
Pjt
Val
Pps
Pj
350 14984 360 168.08 230.00 5 66.92 1.04 1.65 61.97 130.54 1
350 14984 360 168.08 230.00 5 66.92 1.04 1.65 61.97 130.54 1
300 4061 177 168.08 212.23 5 49.15 0.70 1.87 9.56 60.58
300 4061 354 168.08 212.23 5 49.15 1.39 1.87 34.46 85.48
400 8273 136 168.08 237.00 5 73.92 0.30 0.85 2.95 77.72
400 8273 272 168.08 237.00 5 73.92 0.60 0.85 10.64 85.41
350 10145 109 168.08 255.00 5 91.92 0.31 0.87 4.60 97.39
350 10145 218 168.08 255.00 5 91.92 0.63 0.87 16.59 109.38 1
450 5160 245 168.08 196.85 5 33.77 0.43 0.88 3.08 37.73450 5160 490 168.08 196.85 5 33.77 0.86 0.88 11.11 45.76
450 7420 185 168.08 190.00 5 26.92 0.32 0.46 2.64 30.02
450 7420 371 168.08 190.00 5 26.92 0.65 0.46 9.55 36.93
1212.00
1705.00
7 Intake 900 659 2960 168.08 175.87 3 10.79 1.29 0.24 1.36 12.39
250 100 41 190.00 210.00 10 30.00 0.23 0.50 0.04 30.54
250 100 82 190.00 210.00 10 30.00 0.46 0.50 0.14 30.64
250 9010 55 190.00 240.00 5 55.00 0.31 1.05 5.92 61.97
250 9010 109 190.00 240.00 5 55.00 0.62 1.05 21.00 77.05
350 16822 82 190.00 230.00 5 45.00 0.24 0.90 4.51 50.41
350 16822 163.6 190.00 230.00 5 45.00 0.47 0.90 16.17 62.07
Dischrge line 178 65296 0.25 Initial Desig
Common Header 354.6 8404 12.92 Data as per
26.00 Latest Rvsd
Dischrge line 1390.00 Values Ppsd
Common Header 2059.60 *S
Sub - Total -- Inamaluwa
- Total -- Transmission-Common Hea
- Total -- Transmission - Dischrge li
Total
9
10
5
4
Inamaluwa
Inamaluwa
Sigiriya
Habarana
Inamaluwa
GR
ToE
T's
3
TP
To
G
RESERVOIRS
Kithulhitiyawa
2
1
8
6
Pipe Sizing Analysis Contract No:P&P/WS/EB-INDIA/GDWSS/2011/01
Velocity /
ms-1
Top
WL @
Res
and ETSe.
NoLocation
NGL @
Reservoir
Gate
Min.W
L @
WTP
(m)
Flow
(m3/Hr)
Dia.of
Pipe
(DN) /
mm
Static
Head /
(m)
Galewela
Dambulla
Kandalama
Thittawelgolla
Frictional
Loss / (m)
(fittings)
Frictional
Loss / (m) -
(pipes)
He
Requ
[ba
Head
Required
/ (m)
Sensitivity Analysis with Respect to Pressure
Total Flow for 22
Hrs in MainTotal Flow for 22
Hrs in Inamaluwa
8/11/2019 11 Sensitivity Pipe Sizing Analysis
2/16
Sensitivity Analysis with Respect to Pressure
Initial
Design
Value
New
(DN)
mm
Distanc
e (m)
Latest
Rvsd
Value
VW
Initial
Design
Value
Latest
Rvsd
Value
VW
Values
Ppsd by
Pjt
Initial
Design
Value
Latest
Rvsd
Value
VW
1 Galewela 350 350 13392 14984 360 360 168.25
2 Dambulla 300 300 4100 4061 410 354 168.30
3 Kandalama 400 400 9529 8273 346 272 168.20
4 Thittawelgolla 350 350 7695 8949 255 218 168.25
5 Kithulhitiyawa 450 450 6732 5458 532 490 168.20
6 Inamaluwa 450 450 9770 7420 429 371 168.00
7 Intake 900 900 700 659 2960 2960 161.96
8 Inamaluwa 250 250 200 100 109 82 187.00
9 Sigiriya 250 250 13300 9010 131 109 187.20
10 Habarana 350 350 17100 16822 190 163.6 187.07
Total 82518 75736 5722 5380
95910 6082
Initial Design Value - Data & Cal as per the First Contractor's Proposal [BEP]
Data as per the RSC-Central or Head Office comment
Latest Rvsd Value VW - Data & Cal as per the Latest Contractor's [VT&WBG] Revision
Values Ppsd by Pjt - Data & Calculations as per the suggested new values by pjt
* Surge pressure was not incorporated and to be analysed seperately
Distance (m) Flow (m3/Hr)
TP
ToGRESERVOIRS
InmG
R
ToET
Min.WL @ WT
Se.
NoLocation
Dia.of Pipe (DN)
/ mm
8/11/2019 11 Sensitivity Pipe Sizing Analysis
3/16
Values
Ppsd by
Pjt
Initial
Design
Value
Latest
Rvsd
Value
VW
Values
Ppsd by
Pjt
Initial
Design
Value
Latest
Rvsd
Value
VW
Values
Ppsd by
Pjt
Initial
Design
Value
Latest
Rvsd
Value
VW
Values
Ppsd by
Pjt
Initial
Design Value
168.25 207.292 230.000 30 30 30 69.04 91.75 1.04
168.30 212.226 212.226 30 30 30 73.93 73.93 1.61
168.20 192.718 237.000 30 30 30 54.52 98.80 0.76
168.25 197.400 255.000 30 30 30 59.15 116.75 0.74
168.20 158.535 195.000 30 30 30 20.34 56.80 0.93
168.00 188.453 190.000 30 30 30 50.45 52.00 0.75
161.96 169.557 169.557 30 30 30 37.60 37.60 1.29
187.00 188.557 210.000 30 30 30 31.56 53.00 0.62
187.20 210.242 240.000 30 30 30 53.04 82.80 0.74
187.07 194.176 230.000 30 30 30 37.11 72.93 0.55
VelTop WL @ Res and ET Static Head / (m) (m) NGL @ Reservoir Gate
Pipe Sizing Analysis Contract No:P&P/WS/EB-INDIA/GDWSS/2011/01
8/11/2019 11 Sensitivity Pipe Sizing Analysis
4/16
Latest Rvsd
Value VW
Values
Ppsd by
Pjt
Initial
Design
Value
Latest
Rvsd
Value
VW
Values
Ppsd by
Pjt
Initial
Design
Value
Latest
Rvsd
Value
VW
Values
Ppsd by
Pjt
Initial
Design
Value
Latest
Rvsd
Value
VW
Values
Ppsd by
Pjt
Initial
Design
Value
0.00 1.04 1.65 1.65 59.00 61.97 129.69 155.37 13.22
0.00 1.39 1.87 1.87 39.00 34.46 114.80 110.26 11.70
0.00 0.60 0.85 0.85 19.40 10.64 74.77 110.29 7.62
0.00 0.63 0.87 0.87 17.10 14.63 77.12 132.25 7.86
0.00 0.86 0.88 0.88 12.70 11.76 33.92 69.44 3.46
0.00 0.65 0.46 0.46 8.30 9.55 59.21 62.01 6.04
0.00 1.29 0.24 0.24 1.90 1.36 39.74 39.19 4.05
0.00 0.46 0.50 0.50 0.85 0.14 32.91 53.64 3.35
0.00 0.62 1.05 1.05 43.60 21.00 97.69 104.85 9.96
0.00 0.47 0.90 0.90 22.00 16.17 60.01 90.00 6.12
city / ms-1
Frictional Loss / (m)
(fittings)
Head required / (m)Frictional Loss / (m) -
(pipes)
H
8/11/2019 11 Sensitivity Pipe Sizing Analysis
5/16
Latest
Rvsd
Value
VW
Values
Ppsd by
Pjt
Initial
Design
Value
Latest
Rvsd
Value
VW
Values
Ppsd by
Pjt
Initial
Design
Value
Latest
Rvsd
Value
VW
Values
Ppsd by
Pjt
Initial
Design
Value
Latest
Rvsd
Value
VW
Values
Ppsd by
Pjt
As per ISO
2531-2009
pipe PN 16
can
withstand
15.84 12.71 13.01 15.25 15.62 20.25 20.62 25
11.24 10.68 10.22 12.82 12.26 17.82 17.26 25
11.24 6.60 5.71 7.92 6.85 12.92 11.85 25
13.48 6.84 6.59 8.21 7.91 13.21 12.91 25
7.08 2.44 2.34 2.93 2.81 7.93 7.81 25
6.32 5.02 5.14 6.02 6.17 11.02 11.17 25
4.00 3.03 2.98 3.64 3.57 8.64 8.57 25
5.47 2.34 2.26 2.80 2.71 7.80 7.71 25
10.69 8.94 6.64 10.73 7.96 15.73 12.96 25
9.17 5.10 4.50 6.12 5.40 11.12 10.40 25
ead / [bar]
Pressure Classification - Ref ISO 2531:2
Allowable Site Test
Pressure = [
PMA+ 5 bar ] / (bars)
Allowable Operating
Pressure [PFA]/ [bar]
Max Operating Pressure
[PMA]= [1.2*PFA] / [bar]
8/11/2019 11 Sensitivity Pipe Sizing Analysis
6/16
A equacy
under
Extream
condition
for S/P
A equacy
under
Extream
condition for
Flanged pipes
ok *PN25 required
ok
ok
ok
ok
ok
ok
ok
ok
ok
09E ; Pg 07
8/11/2019 11 Sensitivity Pipe Sizing Analysis
7/16
Sensitivity Analysis with Respect to Pressure
Initial
Design
Value
New
(DN)
mm
Distanc
e (m)
Latest
Rvsd
Value
VW
Initial
Design
Value
Latest
Rvsd
Value
VW
Values
Ppsd by
Pjt
Initial
Design
Value
Latest
Rvsd
Value
VW
1 Galewela 350 350 13392 14984 360 360 168.25
2 Dambulla 300 300 4100 4061 410 354 168.30
3 Kandalama 400 400 9529 8273 346 272 168.20
4 Thittawelgolla 350 350 7695 8949 255 218 168.25
5 Kithulhitiyawa 450 450 6732 5458 532 490 168.20
6 Inamaluwa 450 450 9770 7420 429 371 168.00
7 Intake 900 900 700 659 2960 2960 161.96
8 Inamaluwa 250 250 200 100 109 82 187.00
9 Sigiriya 250 250 13300 9010 131 109 187.20
10 Habarana 350 350 17100 16822 190 163.6 187.07
Total 82518 75736 5722 5380
95910 6082
Initial Design Value - Data & Cal as per the First Contractor's Proposal [BEP]
Data as per the RSC-Central or Head Office comment
Latest Rvsd Value VW - Data & Cal as per the Latest Contractor's [VT&WBG] Revision
Values Ppsd by Pjt - Data & Calculations as per the suggested new values by pjt
* Surge pressure was not incorporated and to be analysed seperately
Distance (m) Flow (m3/Hr)
TP
ToGRESERVOIRS
InmG
R
ToET
Min.WL @ WT
Se.
NoLocation
Dia.of Pipe (DN)
/ mm
8/11/2019 11 Sensitivity Pipe Sizing Analysis
8/16
Values
Ppsd by
Pjt
Initial
Design
Value
Latest
Rvsd
Value
VW
Values
Ppsd by
Pjt
Initial
Design
Value
Latest
Rvsd
Value
VW
Values
Ppsd by
Pjt
Initial
Design
Value
Latest
Rvsd
Value
VW
Values
Ppsd by
Pjt
Initial
Design Value
168.25 207.292 230.000 40 40 40 79.04 101.75 1.04
168.30 212.226 212.226 40 40 40 83.93 83.93 1.61
168.20 192.718 237.000 40 40 40 64.52 108.80 0.76
168.25 197.400 255.000 40 40 40 69.15 126.75 0.74
168.20 158.535 195.000 40 40 40 30.34 66.80 0.93
168.00 188.453 190.000 40 40 40 60.45 62.00 0.75
161.96 169.557 169.557 40 40 40 47.60 47.60 1.29
187.00 188.557 210.000 40 40 40 41.56 63.00 0.62
187.20 210.242 240.000 40 40 40 63.04 92.80 0.74
187.07 194.176 230.000 40 40 40 47.11 82.93 0.55
VelTop WL @ Res and ET Static Head / (m) (m) NGL @ Reservoir Gate
Pipe Sizing Analysis Contract No:P&P/WS/EB-INDIA/GDWSS/2011/01
8/11/2019 11 Sensitivity Pipe Sizing Analysis
9/16
Latest Rvsd
Value VW
Values
Ppsd by
Pjt
Initial
Design
Value
Latest
Rvsd
Value
VW
Values
Ppsd by
Pjt
Initial
Design
Value
Latest
Rvsd
Value
VW
Values
Ppsd by
Pjt
Initial
Design
Value
Latest
Rvsd
Value
VW
Values
Ppsd by
Pjt
Initial
Design
Value
0.00 1.04 1.65 1.65 59.00 61.97 139.69 165.37 14.24
0.00 1.39 1.87 1.87 39.00 34.46 124.80 120.26 12.72
0.00 0.60 0.85 0.85 19.40 10.64 84.77 120.29 8.64
0.00 0.63 0.87 0.87 17.10 14.63 87.12 142.25 8.88
0.00 0.86 0.88 0.88 12.70 11.76 43.92 79.44 4.48
0.00 0.65 0.46 0.46 8.30 9.55 69.21 72.01 7.06
0.00 1.29 0.24 0.24 1.90 1.36 49.74 49.19 5.07
0.00 0.46 0.50 0.50 0.85 0.14 42.91 63.64 4.37
0.00 0.62 1.05 1.05 43.60 21.00 107.69 114.85 10.98
0.00 0.47 0.90 0.90 22.00 16.17 70.01 100.00 7.14
city / ms-1
Frictional Loss / (m)
(fittings)
Head required / (m)Frictional Loss / (m) -
(pipes)
H
8/11/2019 11 Sensitivity Pipe Sizing Analysis
10/16
8/11/2019 11 Sensitivity Pipe Sizing Analysis
11/16
A equacy
under
Extream
condition
for S/P
A equacy
under
Extream
condition for
Flanged pipes
ok *PN25 required
ok
ok
ok
ok
ok
ok
ok
ok
ok
09E ; Pg 07
8/11/2019 11 Sensitivity Pipe Sizing Analysis
12/16
Sensitivity Analysis with Respect to Pressure
Initial
Design
Value
New
(DN)
mm
Distanc
e (m)
Latest
Rvsd
Value
VW
Initial
Design
Value
Latest
Rvsd
Value
VW
Values
Ppsd by
Pjt
Initial
Design
Value
Latest
Rvsd
Value
VW
1 Galewela 350 350 13392 14984 360 360 168.25
2 Dambulla 300 300 4100 4061 410 354 168.30
3 Kandalama 400 400 9529 8273 346 272 168.20
4 Thittawelgolla 350 350 7695 8949 255 218 168.25
5 Kithulhitiyawa 450 450 6732 5458 532 490 168.20
6 Inamaluwa 450 450 9770 7420 429 371 168.00
7 Intake 900 900 700 659 2960 2960 161.96
8 Inamaluwa 250 250 200 100 109 82 187.00
9 Sigiriya 250 250 13300 9010 131 109 187.20
10 Habarana 350 350 17100 16822 190 163.6 187.07
Total 82518 75736 5722 5380
95910 6082
Initial Design Value - Data & Cal as per the First Contractor's Proposal [BEP]
Data as per the RSC-Central or Head Office comment
Latest Rvsd Value VW - Data & Cal as per the Latest Contractor's [VT&WBG] Revision
Values Ppsd by Pjt - Data & Calculations as per the suggested new values by pjt
* Surge pressure was not incorporated and to be analysed seperately
Distance (m) Flow (m3/Hr)
TP
ToGRESERVOIRS
InmG
R
ToET
Min.WL @ WT
Se.
NoLocation
Dia.of Pipe (DN)
/ mm
8/11/2019 11 Sensitivity Pipe Sizing Analysis
13/16
Values
Ppsd by
Pjt
Initial
Design
Value
Latest
Rvsd
Value
VW
Values
Ppsd by
Pjt
Initial
Design
Value
Latest
Rvsd
Value
VW
Values
Ppsd by
Pjt
Initial
Design
Value
Latest
Rvsd
Value
VW
Values
Ppsd by
Pjt
Initial
Design Value
168.25 207.292 230.000 50 50 50 89.04 111.75 1.04
168.30 212.226 212.226 50 50 50 93.93 93.93 1.61
168.20 192.718 237.000 50 50 50 74.52 118.80 0.76
168.25 197.400 255.000 50 50 50 79.15 136.75 0.74
168.20 158.535 195.000 50 50 50 40.34 76.80 0.93
168.00 188.453 190.000 50 50 50 70.45 72.00 0.75
161.96 169.557 169.557 50 50 50 57.60 57.60 1.29
187.00 188.557 210.000 50 50 50 51.56 73.00 0.62
187.20 210.242 240.000 50 50 50 73.04 102.80 0.74
187.07 194.176 230.000 50 50 50 57.11 92.93 0.55
VelTop WL @ Res and ET Static Head / (m) (m) NGL @ Reservoir Gate
Pipe Sizing Analysis Contract No:P&P/WS/EB-INDIA/GDWSS/2011/01
8/11/2019 11 Sensitivity Pipe Sizing Analysis
14/16
8/11/2019 11 Sensitivity Pipe Sizing Analysis
15/16
Latest
Rvsd
Value
VW
Values
Ppsd by
Pjt
Initial
Design
Value
Latest
Rvsd
Value
VW
Values
Ppsd by
Pjt
Initial
Design
Value
Latest
Rvsd
Value
VW
Values
Ppsd by
Pjt
Initial
Design
Value
Latest
Rvsd
Value
VW
Values
Ppsd by
Pjt
As per ISO
2531-2009
pipe PN 16
can
withstand
17.88 12.71 13.01 15.25 15.62 20.25 20.62 25
13.28 10.68 10.22 12.82 12.26 17.82 17.26 25
13.28 6.60 5.71 7.92 6.85 12.92 11.85 25
15.52 6.84 6.59 8.21 7.91 13.21 12.91 25
9.12 2.44 2.34 2.93 2.81 7.93 7.81 25
8.36 5.02 5.14 6.02 6.17 11.02 11.17 25
6.03 3.03 2.98 3.64 3.57 8.64 8.57 25
7.51 2.34 2.26 2.80 2.71 7.80 7.71 25
12.73 8.94 6.64 10.73 7.96 15.73 12.96 25
11.21 5.10 4.50 6.12 5.40 11.12 10.40 25
ead / [bar]
Pressure Classification - Ref ISO 2531:2
Allowable Site Test
Pressure = [
PMA+ 5 bar ] / (bars)
Allowable Operating
Pressure [PFA]/ [bar]
Max Operating Pressure
[PMA]= [1.2*PFA] / [bar]
8/11/2019 11 Sensitivity Pipe Sizing Analysis
16/16
A equacy
under
Extream
condition
for S/P
A equacy
under
Extream
condition for
Flanged pipes
ok *PN25 required
ok
ok
ok
ok
ok
ok
ok
ok
ok
09E ; Pg 07