PVRV Sizing for Atmospheric Storage Tanks

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DATE : BY : REV : DOC NO.:

Produced Water Tank

03-May-13 S.Rahimi 0

Atmospheric Tank Relief Valve Sizing (Pressure)

Input Data

760.0 1.4 28 1 50

Gas Blowby (LV-27005 FO) 1568.0 1.4 20 1 65

7250.0 1.4 18 1 100

40 10 0 1.01 0.65

40 10 0 1.01 0.65

40 10 0 1.01 0.65

40 10 0 1.01 0.65

125.3 1.054 323 1.01 0.20 0.87 1.1

950.0 1.054 323 1.01 0.20 6.63 2.9

1400.0 1.054 338 1.01 0.20 11.83 3.9

5825.9 1.054 373 1.01 0.20 54.50 8.3

10406.4 9291.4

10442.0 8390.9

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PV-27008B Fully Close

PV-27008A Fully Open

Required Relieving Rate Gas Specific Heat Ratio Gas MW Gas Compressibility Factor Relieving Temperature

Nm3/hr ---------C

100.2 1.4 28 1 50

Relief Valve Inputs Set Pressure Overpressure Backpressure Atmospheric Pressure Effective Discharge Coeff (Kd)

mbarg % barg bara ----

kg/hr bara K bara ----in2 in

Emergency Case

Calculation Results Required Relieving Rate Relieving Pressure Relieving Temperature Backpressure F Coefficient Calculated Area Relief Valve Calculated ID

Valve Specification Relief Valve Selected ID Selected Area Actual Relieving Rate Actual Relieving Rate

in in2 Nm3/hr kg/hr

Fire

10 78.50 8996.9 11246.1

Note

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8996.9 11246.1

PROJECT : CLIENT: PROJ. NO. : UNIT :

DATE : BY : REV : DOC NO.:

Atmospheric Tank Relief Valve Sizing (Vacuum)

Input Data Relieving Rate (Inbreathing) Air Specific Heat Ratio Air MW Air Compressibility Factor

Nm3/hr ----------

137.1 1.4 29 1

Relief Valve Inputs Set Pressure Overpressure Ambient Temperature Atmospheric Pressure Effective Discharge Coeff (Kd)

mbarg % C bara ----

-5 0 48.5 1.01 0.55

kg/hr bara K bara ---in2 in

177.5 1.010 321.5 1.005 0.070 4.2 2.3

in in2 Nm3/hr kg/hr

3 7.07 229.9 297.7

Calculation Results Required Relieving Rate Relieving Pressure Relieving Temperature Backpressure (tank) F coefficient Calculated Area Relief Valve Calculated ID

Valve Specification Relief Valve Selected ID Selected Area Actual Relieving Rate Actual Relieving Rate

Note

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03-May-13 S.Rahimi 0