7/28/2019 Process Sizing Rev.1-CNG

1/21

ATTACHMENT 01:

SINGLE PHASE LINE SIZING SPREADSHEET

Client: PetroVietnam CNG Joint Stock Co.

Project: CNG Filling Station Project

Line Service:

Line/Unit No: 4" 6"Units SI SI

Flow type Mass MassDiameter Nominal 100 mm 350

Standard volume Rate 12500 Sm3/h 12500Actual inlet Vol.flow 532.3 m3/h 532.3

Mass Flow 10150 kg/h 10150Phase Gas Gas

Temperature 30 C 30

Pressure 22 Barg 22Molecular weight 19.19 19.19

Compressibility 0.9339 0.9339Density 19.06 kg/m3 19.06

Gas Density 19.06 kg/m3 19.06Viscosity 0.01177 cP 0.01177

Design Margin 0 % 0q. engt s

Fittings Eq.Lengh, m 10 0 10Pipe straight Lengh, m 100 m 100

Total Eq.Lengh, m 110Elevation Change 0 m 0

Type of Pipe Commercial Steel Commercial Steel

pe c e u e c cCalculated value

I.D, mm User Input User InputW.T, mm User Input User Input

I.D/W.T, mm 102.26 6.02 154.051Static Head Loss Kpa 0 Kpa

Reynolds No. 2981000Friction factor 0.01653Pressure drop Kpa/100m 49.96 Kpa/100m

Velocity m/s 18 m/s

Sizing criteria Max Velocity m/s 49.7 m/sPress. Drop/lengthVs Kpa/100m 11.0 Kpa/100m

WARNINGS: Recheck

Main Piping at upstream of Compressor (Piping_Seg 01/02)

User can override WT/ID User can ove

PIPING SIZING FOR CNG FILLING S

7/28/2019 Process Sizing Rev.1-CNG

2/21

Date:

Pre. By:

Checked:

mmSm3/hm3/hkg/h

C

Barg

kg/m3kg/m3cP%q. engt s

0m

110m

7.1120

19790000.01536

5.987.93

49.711.0

Good

rride WT/ID

TATION

7/28/2019 Process Sizing Rev.1-CNG

3/21

SINGLE PHASE LINE SIZING SPREADSHEET

Client: PetroVietnam CNG Joint Stock Co.Project: CNG Filling Station Project

Line Service:

Line/Unit No: 3" 4"Units SI SI

Flow type Mass MassDiameter Nominal 80 mm 100

Standard volume Rate 12500 Sm3/h 12500Actual inlet Vol.flow 45.79 m3/h 45.79

Mass Flow 10150 kg/h 10150Phase Gas Gas

Temperature 45 C 45Pressure 250 Barg 250

Molecular weight 19.19 19.19Compressibility 0.8217 0.8217

Density 221.6 kg/m3 221.6

Gas Density 221.6 kg/m3 221.6Viscosity 0.02558 cP 0.02558

Design Margin 0 % 0q. engt s

Fittings Eq.Lengh, m 5 0 5Pipe straight Lengh, m 50 m 50

Total Eq.Lengh, m 55Elevation Change 0 m 0

Type of Pipe Commercial Steel Commercial Steelpe c e u e c c

Calculated valueI.D, mm User Input User Input

W.T, mm User Input User Input

I.D/W.T, mm 58.42 15.24 87.325Static Head Loss Kpa 0 Kpa

Reynolds No. 2401000Friction factor 0.01872Pressure drop Kpa/100m 79.97 Kpa/100m

Velocity m/s 4.746 m/s

Sizing criteriaMax Velocity m/s 16.6 m/s

Press. Drop/lengthVs Kpa/100m 50.0 Kpa/100m

WARNINGS: Recheck

Main Piping (Header) at downstream of Compressor

(Piping_Seg 03)

User can override WT/ID User can ove

7/28/2019 Process Sizing Rev.1-CNG

4/21

Date:Pre. By:

Checked:

mmSm3/hm3/hkg/h

CBarg

kg/m3

kg/m3cP%q. engt s

0m

55m

13.490

16060000.01726

9.8782.124

16.650.0

Good

rride WT/ID

7/28/2019 Process Sizing Rev.1-CNG

5/21

SINGLE PHASE LINE SIZING SPREADSHEET

Client: PetroVietnam CNG Joint Stock Co. Date:Project: CNG Filling Station Project Pre. By:

Line Service:Checked:

Line/Unit No: 2" 3"Units SI SI

Flow type Mass MassDiameter Nominal 50 mm 80 mm

Standard volume Rate 2500 Sm3/h 2500 Sm3/hActual inlet Vol.flow 117.7 m3/h 117.7 m3/h

Mass Flow 2029 kg/h 2029 kg/hPhase Gas Gas

Temperature 29.56 C 29.56 CPressure 20 Barg 20 Barg

Molecular weight 19.19 19.19

Compressibility 0.9425 0.9425Density 16.99 kg/m3 16.99 kg/m3Gas Density 16.99 kg/m3 16.99 kg/m3

Viscosity 0.01187 cP 0.01187 cPDesign Margin 0 % 0 %

Eq.Lengt s Eq.Lengt s

Fittings Eq.Lengh, m 2 0 2 0Pipe straight Lengh, m 20 m 20 m

Total Eq.Lengh, m 22 22Elevation Change 0 m 0 m

Type of Pipe Commercial Steel Commercial SteelPipe Sc e u e Sc 40 Sc 40

Calculated valueI.D, mm User Input User Input

W.T, mm User Input User InputI.D/W.T, mm 52.502 3.912 77.927 5.486

Static Head Loss Kpa 0 Kpa 0Reynolds No. 1152000 775900

Friction factor 0.01936 0.01799Pressure drop Kpa/100m 73.61 Kpa/100m 9.493

Velocity m/s 15.33 m/s 6.957

Sizing criteriaMax Velocity m/s 51.8 m/s 51.8

Press. Drop/lengthVs Kpa/100m 11.0 Kpa/100m 11.0

WARNINGS: Recheck Good

Piping at upstream of 01 Compressor

User can override WT/ID User can override WT/ID

7/28/2019 Process Sizing Rev.1-CNG

6/21

SINGLE PHASE LINE SIZING SPREADSHEET

Client: PetroVietnam CNG Joint Stock Co.Project: CNG Filling Station Project

Line Service:

Line/Unit No: 1" 2"Units SI SI

Flow type Mass MassDiameter Nominal 25 mm 50

Standard volume Rate 2500 Sm3/h 2500Actual inlet Vol.flow 9.157 m3/h 9.157

Mass Flow 2029 kg/h 2029Phase Gas Gas

Temperature 45 C 45Pressure 250 Barg 250

Molecular weight 19.19 19.19Compressibility 0.8217 0.8217

Density 221.6 kg/m3 221.6

Gas Density 221.6 kg/m3 221.6Viscosity 0.02558 cP 0.02558Design Margin 0 % 0

Eq.Lengt s

Fittings Eq.Lengh, m 3.5 0 3.5Pipe straight Lengh, m 35 m 35

Total Eq.Lengh, m 38.5Elevation Change 0 m 0

Type of Pipe Commercial Steel Commercial SteelPipe Sc e u e Sc 160 Sc 160

Calculated valueI.D, mm User Input User Input

W.T, mm User Input User Input

I.D/W.T, mm 20.701 6.35 42.85Static Head Loss Kpa 0 KpaReynolds No. 1355000

Friction factor 0.02423Pressure drop Kpa/100m 740.9 Kpa/100m

Velocity m/s 7.558 m/s

Sizing criteriaMax Velocity m/s 16.6 m/s

Press. Drop/lengthVs Kpa/100m 50.0 Kpa/100m

WARNINGS: Recheck

Piping at downstream of 01 Compressor

User can override WT/ID User can ove

7/28/2019 Process Sizing Rev.1-CNG

7/21

Date:Pre. By:

Checked:

mmSm3/hm3/hkg/h

CBarg

kg/m3

kg/m3cP%Eq.Lengt s

0m

38.5m

8.73806547000.02049

16.491.764

16.650.0

Good

rride WT/ID

7/28/2019 Process Sizing Rev.1-CNG

8/21

Formulate Used

Re = (10000 x Dp x Vt x a )/

Vt = Q / A

a =( M x P) /( 8,3145 x (T + 273) x Z )

A = x Dv x HH =4 x Dv

Assume Droplet Dp = 10 microns

Q = (C x s) / a

Flow Actual Area Gas filter Diameter Diamet Mass Viscosity Pressu Tempe Z Velocity Density Gas R

rate flow Capacity Calc Choi Droplet Mole Actual Stand.

Sites Sm3/hr m3/min m2 3/min/m2 mm mm microns /(kg.mol cP kPa(g) deg C unitless m/s kg/m3 kg/sm3

C Q A B (Vt) Dv Dv(* Dp MW P T z Vt a s

NG Filling Station 12,500 9.06 0.71 12.70 238 273 10.0 19.19 0.01193 2200 30.00 0.9375 0.211 18.680 0.814 1

Note:

eparator can by any length, but the ratio of seam-to-seam length to the diameter of the vessel H / Dv usually in the range of 2:1 to 4:1

Calculation choice ratio H / Dv : 4/1The approximate filter capacity have been refered from Fig. 7-16/7-13 _Engineering Data Book ( Approximate Gas Filter Capacity)

ATTACHMENT 02FILTER SIZING FOR CNG FILLING STATION

7/28/2019 Process Sizing Rev.1-CNG

9/21

7/28/2019 Process Sizing Rev.1-CNG

10/21

7/28/2019 Process Sizing Rev.1-CNG

11/21

hoi

mm

H*

905

7/28/2019 Process Sizing Rev.1-CNG

12/21

7/28/2019 Process Sizing Rev.1-CNG

13/21

7/28/2019 Process Sizing Rev.1-CNG

14/21

7/28/2019 Process Sizing Rev.1-CNG

15/21

7/28/2019 Process Sizing Rev.1-CNG

16/21

Formular Used

z = - 0,0023 x (P +1,01325 ) + 0,9949

Q = (A x s) / a

= (MW *P) / ( R x T x Z )

A = (A x 125%)

Flow Flow Actual Mol.Wt Pressure Temperature. Compres Density Gas Meter

rate rate 125% Flow sibility Actual Stand. Size

Sites Sm3/hr Sm

3/hr m

3/hr kg/mol barg deg C Kg/am3 Kg/sm3 mm

A A Q MW P T z a s d

CNG Filling Station 12500 15625 679.125 19.19 22 30 0.9375 18.68 0.814 150

Note:

The meter turbine and flow meter shall be sizing to ensure that maximum expecting gas velocity and flowrate will be less than about 80% of recommended

manufacture maximum value.

ATTACHMENT 02FLOWMETER SIZING FOR CNG FILLING STATION

7/28/2019 Process Sizing Rev.1-CNG

17/21

7/28/2019 Process Sizing Rev.1-CNG

18/21

7/28/2019 Process Sizing Rev.1-CNG

19/21

Nor

pipe

mm

100

7/28/2019 Process Sizing Rev.1-CNG

20/21

7/28/2019 Process Sizing Rev.1-CNG

21/21