11058-09-0905!01!001 - Pressure Drop Calculation-Ambato Skid

7/30/2019 11058-09-0905!01!001 - Pressure Drop Calculation-Ambato Skid

1/10

Project:CONSTRUCCION DEL POLIDUCTO AMBATO-RIOBAMBA

Customer:PETROECUADOR

Customer P.O. No.:

Client Document Code.

Equipment Tag No.:EA-UM-120

PRESSURE DROP CALCULATIONAMBATO SKID (EA-UM-120)

Document Number: 11058-09-0905-01-001

Prepared: Anant Kumbhejkar Title: Mechanical Engineer Date: 20.10.11

Checked: Al ODowd Title: Engineering Manager Date: 20.10.11

Authorized: Juan Mello Title: Project Manager Date: 20.10.11

DANIEL


2/10

INDEX

1. SCOPE ----------------------------------------------------------------------------------------------------------------------------------------- 32. PROCESS ------------------------------------------------------------------------------------------------------------------------------------- 33. ASSUMPTIONS ------------------------------------------------------------------------------------------------------------------------------ 34. COMPONENT PRESSURE DROPS USED------------------------------------------------------------------------------------------- 45. SUMMARY ------------------------------------------------------------------------------------------------------------------------------------ 56. RESULTS & CONCLUSION -------------------------------------------------------------------------------------------------------------- 67. APPENDIX------------------------------------------------------------------------------------------------------------------------------------- 7


3/10

1. SCOPE

The pressure drop calculations are carried out for the Ambato metering skid to be supplied toCONSTRUCCION DEL POLIDUCTO AMBATO-RIOBAMBA PROJECT.

The system has 2 x 100 % (i.e. 1 streams operating + 1 standby stream) flow configuration. Each streamhas coriolis meter for measurement of flow. The system can be connected to compact prover also forproving purpose.

Based on below reference drawings, pressure drop is calculated considering the following metering cases

REFERENCE DRAWING NUMBERS: 11058-09-0910-01-400 (P&I Diagram)

11058-09-0910-01-001 (GA drawing)

2. PROCESS

PRODUCT DIESEL,EXTRA GASOLINE, PREMIUM GASOLINE

MINIMUM NORMAL MAXIMUM

STATION FLOW RATE (TOTAL) (GPM) 0 350 500

FLOW RATE (PER STREAM) (GPM) 0 350 500

OPERATING PRESSURE PSIg 20 80 740OPERATING TEMPERATURE - F 30.92 55.04 78.08

DESIGN PRESSURE PSIg 740

DESIGN TEMPERATURE - F ---

SPECIFIC GRAVITY 0.745 to 0.88

VISCOSITY (cSt) 0.94 to 8.97

* Pressure Drop calculations are carried out at normal operating pressure which is 80 PSIg & Maximum flowrate.

Pressure drop calculations are performed for the following cases:-

CASE A: Normal Metering


4/10

4. COMPONENT PRESSURE DROPS USED

These pressure drop values are obtained from information supplied by the manufacturer or from data booksand are incorporated into the pressure drop calculations attached.

Basket Strainer

P= 7 PSI @ max.flow of 500 GPM

Coriolis Meter

P= 8.6 PSI @ max.flow of 500 GPM


5/10

5. SUMMARY

The pressure drop calculations are performed using Design Flow Solution software version 4.19based on theassumptions, process data mentioned on page no.3. For the components not available in the softwaredatabase, values for Cv or direct pressure drop value in Bar collected from manufacturer and used forcalculations.

Following Formulae were used for calculation:-


6/10

6. RESULTS & CONCLUSION

CALCULATIONCASES

(Appendix )

PRESSURE DROPCALCULATION

CASES

FLOW(GPM) per

Stream

OUTLETPRESSURE

(PSIg)

TOTALPRESSURE

DROP(PSI)

CASE AMetering 500 41 39

Since calculated total pressure drop in last column of the above table is reasonable for Ambato liquid meteringsystem, Daniel feels the proposed piping arrangement with given components can be used without making anyalteration in design.

Also it is estimated that during proving pressure drop may go upto 49 PSI.


7/10

7. APPENDIX

Software output results for

CASE A


8/10

GATE

VALVE

PLUG

VALVE

PLUG

VALVE

CHECK

VALVE

CORIOLIS

METER

6"-300#

METERING

OUTLET

TOTAL PRESSURE DROP THROUGH THE SYSTEM DURING METERING IS = 80- 41 =39 PSI

GATE

VALVE STRAINER

STRAINERCORIOLIS

METER PLUGVALVE

CHECKVALVE

PLUG

VALVE

PLUG

VALVE

6"-300#

METERING

INLET

EA-UM-120

AMBATO METERING SYSTEM

80.0 80.080.0 76.8

73.0

73.1

77.2

77.2

73.0 72.072.0 71.671.6 64.664.6 63.963.9 55.355.3 53.153.1 51.851.8 50.950.9 50.650.6 48.248.2 48.148.1 47.2

47.2

47.0

49.9

49.9

43.4 42.9

45.8

45.8

45.8

41.7 41.641.6 40.740.7 40.740.7 40.4

43.3

43.3

43.3

39.2 41.041.0 41.0

77.2 77.277.2 49.949.9 49.949.9 49.949.9 49.949.9 49.9

Pressure in PSIG

DF DesigNet, Version 4 Tue Aug 23 17:01:26 2011...\PRESSURE DROP CALCULATIONS\REV.A\AMBATO SKID\AMBATO SKID.NET


9/10

GATE

VALVE

PLUG

VALVE

PLUG

VALVE

CHECK

VALVE

CORIOLIS

METER

6"-300#

METERING

OUTLET


GATE

VALVE STRAINER

STRAINERCORIOLIS

METER PLUGVALVE

CHECKVALVE

PLUG

VALVE

PLUG

VALVE

6"-300#

METERING

INLET

EA-UM-120


0.002854 3.21

0.16

0.00

0.94 0.39 7.01 0.67 8.62 2.25 1.30 0.87 0.33 2.42 0.08 0.86

0.16

0.00

0.44

0.00

0.08 0.87 0.08 0.25

0.00

-1.82 0.002854

0.00 0.00 -1.22 0.00 1.22 0.00 0.00 0.00 0.00 0.00

DP in PSID



10/10

GATE

VALVE

PLUG

VALVE

PLUG

VALVE

CHECK

VALVE

CORIOLIS

METER

6"-300#

METERING

OUTLET


GATE

VALVE STRAINER

STRAINERCORIOLIS

METER PLUGVALVE

CHECKVALVE

PLUG

VALVE

PLUG

VALVE

6"-300#

METERING

INLET

EA-UM-120


500.0 500.0

500.0

0.0

500.0 500.0 500.0 500.0 500.0 500.0 500.0 500.0 500.0 500.0 500.0 500.0

500.0

0.0

500.0

0.0

0.0

500.0 500.0 500.0 500.0

0.0

0.0

500.0 500.0

0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0

Volumetric Flow Rate in US gal/min


11058-09-0905!01!001 - Pressure Drop Calculation-Ambato Skid

Documents

Transcript of 11058-09-0905!01!001 - Pressure Drop Calculation-Ambato Skid