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