PO. 4500098732 / 10 / 01.01 - Convergeconverge.net.in/wp-content/uploads/2018/05/CEPL-PC-001...Ve, Erosional velocity, m/s (As per API 14E) 6.6 Liquid flow rate, m 3 /s 0.0003 Liquid

PO. 4500098732 / 10 / 01.01.2018

PROJECT TITLE

Supply of PF Process Calculation Spreadsheet (Excel

Forma)

DOCUMENT TITLE

Line Sizing Calculation For Two-Phase Services

APPD.APPD.CHKD.PREP.DATE REV. REASON FOR REVISION

PROJECT NO.

REV. 0DOC. NO. CEPL-PC-001-CA-004 PAGE 1 OF 15

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Attachments

Conclusions

References

Calculation Methodology

Assumptions

Software used

Calculation Objective

Calculation Basis

BASIS


DOC. NO. CEPL-PC-001-CA-004 REV. 0

PROJECT NO. PO. 4500098732 / 10 / 01.01.2018 PAGE NO. 2 of 15

PROJECT TITLE Supply of PF Process Calculation Spreadsheet (Excel Forma)

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oC Temperature at NTP conditions

Z

Pipe1 Pipe2

TSTP 0oC Temperature at STP conditions

PSTP 0.987 atm

M 29.6 kg/kmol Gas molecular weight

0.9956 Gas compressibility factor

PROJECT NO.

CEPL-PC-001-CA-004

LINE DESCRIPTION

P&ID NO.

LINE NO.

SCHEMATIC:

This spreadsheet provides the sizing calculations for maximum 5 pipe segments. However, if the system contains less than 5 segments, unwanted

pipe segments can be ignored.

REV. 0

PO. 4500098732 / 10 / 01.01.2018 PAGE NO. 3 of 15

Supply of PF Process Calculation Spreadsheet (Excel Forma)PROJECT TITLE

DOC. NO.

GAS PHASE FLUID

Empirical constant for erosional velocity (100 & 125 for continuous & intermittent service

respectively)

1.91E-02

125c

ρL 859.1 kg/m3 Liquid density

1.307

27.09

ρSTP Gas density at STP conditionskg/m3

kg/m3

20

cP Gas viscosity

Pressure at STP conditions

ρNTP 1.234

Pipe5Pipe3

QG 2.273

STD STD STD

52.48

STD STD

Pipe segment number

ϵ, Pipe roughness, mm

Nominal diameter, inch

Schedule

Inside diameter, mm 52.48 52.48

30 oC Operating temperature

0.2590

LIQUID PHASE FLUID

QL 1000 kg/h Liquid flow rate

ϒ dyne/cm Gas/Liquid surface tension

μL 0.5099 cP

PNTP 1 atm Pressure at NTP conditions

Pipe4

μG


2.0 2.0

7 kg/cm2g

0.2590 0.2590 0.2590 0.2590

Actual m3/h Gas flow rate

Liquid viscosity

2.0 2.0 2.0

0

Operating pressure

T

P

Gas density at NTP conditions

TNTP

52.48 52.48

θ, Pipe inclination angle with horizontal, degree 0 0 0 0

PIPE SPEC.

Flow direction Uphill Uphill Uphill Uphill Uphill

Pipe1 Pipe2 Pipe3 Pipe4 Pipe5

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- - -

- - -

- -

- -

-

Check valve (Swing)

Supply of PF Process Calculation Spreadsheet (Excel Forma)


DOC. NO.

-

VALVES

-

-

- - -

Qty (nos.)

Equi. Length, m

- - -

Equi. Length, m -

Equi. Length, m - - -

Qty (nos.)

Check valve (Ball or piston)Qty (nos.)

- - -

REV.

PAGE NO.

Gate valve (reduced bore)

-

-

-

-

-

Globe valve (Y- pattern)

Equi. Length, m

Ball valve

Qty (nos.)

-

Equi. Length, m - -

Gate valve (std. bore)

- -

- -

FITTINGS

Std. enlargement 3/4

Std. enlargement 1/2

Std. reducer 3/4

Std. reducer 1/2

Qty (nos.)

- - -

- -

Equi. Length, m

- Equi. Length, m - -

-

Qty (nos.)

Qty (nos.)

Equi. Length, m -

Qty (nos.)

-

- - -

- - - - -

-

- -

-

-

-

- -

0

4 of 15PO. 4500098732 / 10 / 01.01.2018

-

-

-

CEPL-PC-001-CA-004

PROJECT NO.

PROJECT TITLE

Butterfly valveQty (nos.)

Equi. Length, m

Plug valveQty (nos.)

Equi. Length, m

- - Equi. Length, m - -

Tee through outletQty (nos.)

Qty (nos.)

Equi. Length, m

Tee straight through

Elbow std. 90°

Globe valve (Angle- pattern)

Globe valve (Straight pattern)Qty (nos.)

-

Qty (nos.)

Equi. Length, m

Elbow std. 45°

-

Equi. Length, m -

Equi. Length, m

Qty (nos.)

Equi. Length, m -

Qty (nos.)

Equi. Length, m

Qty (nos.)

Equi. Length, m -

Qty (nos.)

-

-

- -

-

- -

-

-

- - -

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297.17 296.59

0

0.17 0.17

0.339 0.338

0.28 0.28

0.337 0.337

296.35

0.29 0.290.44

0.38 0.17 0.17

7.2 6.6 6.6 6.6

0.28 0.28 0.28

Ve, Erosional velocity, m/s (As per API 14E) 6.6

Liquid flow rate, m3/s 0.0003 0.0003 0.0003 0.0003 0.0003

Liquid density, kg/m3 (Constant liquid density is considered) 859.10 859.10 859.10 859.10 859.10

Qty (nos.)

PO. 4500098732 / 10 / 01.01.2018


PAGE NO. 5 of 15

Total mass flow, kg/s 0.28

296.11 295.87

0.28

0.28

0.290.29

Gas mass flow, kg/s 0.01 0.01 0.01

0.000185 0.000185

0.01 0.01

0.000185

Average mixture density, kg/m3

0.28

1

0.00 0.00 0.00Gas flow rate, Actual m3/s 0.0006 0.0006

Gas density, kg/m3 9.40 9.37 9.36 9.35 9.34

Maximum allowable pressure drop shall be 1.5 m per 1000 m pipe length, as per Design Basis Memorandum.

29.79 29.74

Pipe2 Pipe3

Gas temperature, oC 30.00

100.00 100.00

Pipe5

Minimum allowable velocity shall be 1 m/s, as per Design Basis Memorandum.

LENGTHS

User specified equivalent length, m


Please refer attachment 1.

Qty (nos.)

Equi. Length, m -

CALCULATION BASIS / EQUATIONS:

- -

0.28

0.338

0.000185Average mixture viscosity, Pa.s 0.000185

CL, No slip liquid holdup

Frm, Froude number of mixture

100.00

VELOCITY CRITERIA:

PRESSURE DROP CRITERIA:

RESULTS:

100.00

Liquid mass flow, kg/s

Mixture velocity, m/s

2

Pipe4

29.89 29.84

Pipe segment number

Total pipe length (including equivalent length, m)

Pipe1

- -

- - - -

MISC.

Straight length, m

Equi. Length, mOutlet nozzle

Strainer

- -

Equivalent length, m

PROJECT TITLE

100.00100.00

-

100.00 100.00 100.00 100.00

DOC. NO. CEPL-PC-001-CA-004

-

- -

1

PROJECT NO.

REV.

Maximum allowable velocity shall be 10 m/s, as per Design Basis Memorandum.

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1

2

0.614

0.000 0.000 0.000

736.79 746.53

1.13 1.13 1.13

1.00

0.29 0.29

Transition lines for correlation:

Pipe1 Pipe2

L3

0.0135 0.0135 0.0135

0.4815

Flow regime

∆PHH, Pressure drop due to hydrostatic head of vertical component of

pipe, Pa0.0 0.0 0.0

EL(0), liquid hold up for horizontal flow

1.13 1.13

0.514 0.615 0.615

NW, Liquid velocity number

β, correction factor

532.18

B(θ), correction factor

Corrected mixture density, kg/m3 446.45

0.38 0.16 0.16 0.16 0.16

6.86 6.84

0.11

2615 1075 1078 1079

ReNS, no slip Reynolds number 37136 24626

Vsl, no slip liquid velocity, m/s 0.15 0.15 0.15

24654

EL(θ), actual liquid hold up

1.00

Outlet pressure, psig

99.00 98.85

0.01

0.11

6.83 6.82 6.81

0.03

hf, m water column 0.11

98.69

6.97 6.96 6.95 6.94

Outlet pressure, kg/cm2g 6.97 6.96 6.95 6.94 6.93

6.836.84 6.82 6.81 6.80

227.57

L2

750.59 754.68 758.81



PROJECT TITLE

L4

227.68 227.62



Transition

0.51 0.62 0.61 0.61 0.61

Transition Transition

0.4828 0.4834 0.4840 0.4845

0.000 0

L1 227.87 227.73

Pipe3

Transition

0.0134 0.0135

Transition

Pipe segment number

0.1 kg/cm2

Inlet pressure, kg/cm2g 7.00

0.03 0.01 0.01 0.01 0.01

99.16 99.00

S 0.36 0.27

98.85 98.69 98.53

0.27 0.11

Outlet pressure, barg

Pressure drop per 1000 m, m H2O

2587 1066

fNS, no slip Fanning friction factor 0.0082

1076∆PTotal, Total pressure drop, Pa

0.01

0.89 0.89

0.15

531.44 531.06

0.614

1.00 1.00

24710

0.0

Ek, Pressure drop correction factor due to acceleration 0.0105 0.0084 0.0084 0.0084 0.0084

fTP, two phase Fanning friction factor 0.0117 0.0110 0.0110 0.0110 0.0110

∆Pf, Pressure drop due to friction, Pa

0.0084 0.0084 0.0084 0.0084

0.89y 1.28

1067 1069 1070

Inlet pressure, barg

Inlet pressure, psig 99.54

0.010.01

REMARKS

Pipe size considered is adequate w.r.to velocity criteria.

Pipe size considered is adequate w.r.to pressure drop criteria.

CONCLUSIONS:

24682

hf, psi

hf, bar

0.89

Total

pressure

drop

0.1 bar kPa 0.7 1.00

99.16

psi 6.9

0.0

0.15

0.29

Pipe4 Pipe5

Vsg, no slip gas velocity, m/s 0.29 0.29

531.81

1.00

0.270.27 0.27

m H2O

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Reference:http://www.fekete.com/SAN/TheoryAndEquations/HarmonyTheoryEquations/Content/HTML_Files/Refer

ence_Material/Calculations_and_Correlations/Pressure_Loss_Calculations.htm





ATTACHMENT 1: CALCULATION BASIS / EQUATIONS

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http://www.fekete.com/SAN/TheoryAndEquations/HarmonyTheoryEquations/Content/HTML_Files/Reference_Material/Calculations_and_Correlations/Pressure_Loss_Calculations.htmhttp://www.fekete.com/SAN/TheoryAndEquations/HarmonyTheoryEquations/Content/HTML_Files/Reference_Material/Calculations_and_Correlations/Pressure_Loss_Calculations.htm





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PO. 4500098732 / 10 / 01.01 - Convergeconverge.net.in/wp-content/uploads/2018/05/CEPL-PC-001...Ve, Erosional velocity, m/s (As per API 14E) 6.6 Liquid flow rate, m 3 /s 0.0003 Liquid