STORAGE TANK DESIGN CALCULATION

Design Code

Tank Dimension

Diameter/ mHeight/ mFilling Height/ m

Product Stored

Insulation

Roof Dimension

Material

Yield Strength of Weld/ MPa

Thickness / mmInner Diameter/ mOuter Diameter/ mHeight/ m

Weight of Roof/ N

Pressure and TemperatureOutside TankPressure/ kPa

Inside TankMaximum Design Pressure/ kPaMaximum Allowable Pressure/ kPa

Inlet Pumping Rate, Vpf

/ m3/h

Outlet Pumping Rate, Vpe

/ m3/h

Volume of Tank/ m3

Volume Stored/ m3

Surface Area Under Compressive forces/ m2

Material Density/ kg/m3

Angle from Horizontal/ 0degrees

Volume of Roof/ m3

Temperature/ 0 Celsius

Minimum Allowable Pressure/ kPa

Flow of Air

Specific Heat Ratio of AirMolecular Weight/ g/molCompressibility Factor

Inbreathing

Venting Requirement for Inbreathing

Temperature / K

Outbreathing

Venting Requirement for Outbreathing

Temperature/ K

Maximum Temperature/ 0 Celsius

Specific Heat of Air at Constant Pressure,cp/ kJ/kg.K

Specific Heat of Air at Constant Volume, cv/ kJ/kg.K

Inbreathing due to Flow in,Vip / Nm3/h

Thermal Inbreathing, Vit / Nm3/h

Maximum Inbreathing,Vi / Nm3/h

Pressure at Device inlet, P1 / bar

Pressure at Device outlet, P2 / bar

Minimum Cross-sectional Area/ cm2

Outbreathing due to Flow Out, Vop

/ Nm3/h

Thermal Outbreathing, Vot/ Nm3/h

Maximum Outbreathing, Vo/ Nm3/h

Pressure at Device Inlet, P1/ bar

Pressure at Device Outlet, P2/ bar

Minimum Cross-sectional Area/ cm2

STORAGE TANK DESIGN CALCULATION

API2000, 5th EditionAPI2000, 7th EditionAPI650, 11th Edition

169.18.2

780

200Gasoil

1829.6635614507

1648.7078246039

862.6414543787None

Steel S275

7850275

105

1616.01

1.4106158457

0.453734632934941.4234761832

Column1101.325

35

Column10.9903229768

102.3153229768

100.3346770232

50

1.01

0.7181.4066852368

28.971

200 Latitude

1249.0310189109

1449.0310189109

1.01325

1.0033467702308.16

109.8889836028

Y-Factor for Various latitude

780 Latitude

276.2384276985

1056.2384276985

1.0231532298

1.01325323.16

81.625327285

C-Factors for temperature above 250

Below 420

Between 420 and 580

Above 580

Below 420

Between 420 and 580

Above 580

6.5

5

4

Y-Factor for Various latitude

0.32

0.25

0.2

C-Factors for temperature above 250