tank calculation t-03

Rev.

0 17-May-09 Issued for Review MI MI MI

REPORT

Stress CalculationTank-03

Diesel Fuel Tank Terminal - Pontianak

PT. FAJAR TEKNIK MANDIRI

DATE DESCRIPTION PREPARED CHECKED APPROVED

Design Standard : API-650 10th Edition Addendum 4, Dec 2005Diameter : 15.513 mHeight : 16.79 mMax. Liquid Level : 16.79 mFluid Specific Gravity : 0.875Material : A-36Tank Joint Eficiency : 0.85Tank Corr. Allowance : 3 mmTop Compession Ring : TOP ANGLE

min L 76 x 76 x 9.5 mm (per API-650 Sec. 3.1.5.9)Actual L 100 x 100 x 10 mm

A. Shell Plate

B. Bottom Plate

Flat Bottom = Annular Plate Designt. min Bottom = 6 mm

t. actual Bottom = 8 mm

t. min Annular Bottom = 6 mm

t. actual Annular Bottom = 12 mm

Total Bottom Plate Weight = 13670 kg

SUMMARY

kg (mm)11 3.5 0.5 6 3498 6

Shell#t. design (td) t. test (tt) t. min API650 Weight t. Used

(mm) (mm) (mm)

8 5.4 2.6 6 4664 89 4.8 1.9 6 4664 810 4.2 1.2 6 4664 8

5 7.3 4.6 6 5830 106 6.7 3.9 6 4664 87 6.1 3.3 6 4664 8

2 9.2 6.7 6 6997 123 8.6 6.0 6 5830 104 8.0 5.3 6 5830 10

1 9.9 7.3 6 6997 12

I. Data Sheet

Equipment tag no/s = T-03Service =Number of Tanks = UnitsDiameter (D) = mTank Height (H) = m

Net capacity required (V) = m3

Type of Bottom = Cone DownType of Roof = Fixed Self supporting

Medium = Liquid Design liquid level = Full Height (mm)Specific gravity (Max)(G) = 0.875 Operating level = (mm)

Viscosity Max (Cst ) = 6 Cst at 40 o C. Tank heating / cooling= No

Flash point pC = above 38 o C Nozzle heating = Not Applicable

Filling rate (m3/hr) = (m3/hr) Heating/cooling med= Not ApplicableEmptying rate (m3/hr) = (m3/hr) Heat load KW/hr = Not ApplicableStorage pressure = Psig Tank mixers = NoDesign pressure = k Pa Water draw off sump= Yes, at centre

Shell design method = As per Code Weight Design wind speed = 45 m/s Roof = Kg

Shell = KgBottom = Kg

Foundation type = TBA by Contractor Int. roof = KgCorrosion allowance(CA) = 3 mmMinimum thickness inShell (t_shell_min)= 6 mmRoof (t_roof_min)= 5 mm Cleanout door = NoBottom (t_bottom_min)= 6 mmJoint efficiency ( E ) = 0.85

Cathodic protection= NoType of floating roof= Not applicable

Tank roof type = Self supported Bottom Leak detect= Required & As per stdBottom = 1 in 30Roof = As per code

Insulation thicknessShell = 0 mRoof = 0 m

Stiffening rings = No

Level &Temperature instrument= Level switches =Level &Temperature display station locations Emergency vent = As per code

= a) Tank bottom near stairway entryVortex breaker = RequiredInlet diffuser = RequiredFloating suction = NoFoam pipe supports =

2" Power / data conduits = Side entry mixers = NoDeluge pipe supports =

Process

Mechanical

Design & Constn. Code = API 650 10th edition, Add.3 Finishing and painting=

General

Diesel115.51316.790

3173

SlopeShell manway size

= 24 inch dia

Roof Manway size

= 24 inch dia

Earthing boss =As per design - minimum 4 Nos

Tank bottom type =Cone down with centre sump

Seismic code/zone = As per Geo Tech Recommn

Hand railing =Full Roof periphery, spiral stairway & Access stairway to Roof Top

-

Gauge hatch/Sample hatch=Required ñ at Periphery /Centre

Required (for future installation)

Stilling well = -

Heating/cooling coils L/D

= No

Accessories

Pressure/vacuum vent =Required and as per code

Hydro Test Stress (ST)Yield StrengthBottom plate = Psi Psi PsiShell = Psi Psi PsiRoof plate = Psi Psi PsiShell lining = Psi Psi PsiRoof lining = Psi Psi PsiNozzle/man way lining = Psi Psi PsiNozzle flanges =Nozzle necks =

=

Heating/cooling coils = NoBolts = ASTM A193 Gr. B7 GalvanisedNuts = ASTM A194 Gr.2H GalvanisedWelding fittings = A234 WPB/A105Gaskets = SS 316 spiral wound graphite filledInsulation supports = NoStairs/handrails/platforms= ASTM A36 or equivalent (no galvanising only painted)Earthing boss = Furse makeInternal piping = ASTM A 106 Gr. B and A312 SS304 (3" & below)Gauge Pipe = ASTM A 106 Gr. B

Materials

Design Stress (SD)A-36 23200 24857 36000

None -- -- --A-105A-106 Gr B

None -- -- --None -- -- --

A-36 23200 24857 36000A-36 23200 24857 36000

Level &Temperature instrument Pipes

A-106 Gr B

II. Shell Calculation

SHELL COURSE DESIGN (Bottom Course is #1)

Course #1Material =Corrosion Allow. = 3 mm

API-650 ONE FOOT METHOD

Sd = 160 Mpa (allowable design stress per API-650 Table 3-2)

St = 171 Mpa (allowable test stress)

DESIGN CONDITION G = Specific Gravity

where: td = Minimum Shell Thickness, in mm

D = Nominal Diameter of The Tank, in mH = Design Liquid Level, in mG = Specific Gravity of The Liquid to be Stored, As Specified By The PurchaserCA = Corrosion Allowance, in mm, As Specified By The PurchaserS = Allowable Stress for The Design Condition, in Mpa

H1 = Effective Liquid Head at Design pressure

HYDROSTATIC TEST CONDITION G = Specific Gravity

= H +2.31 . P (psi)

G

= 16.79 +2.31 . 00.875

A-36; Width = 1524 mm

0.875

td =4.9 . D . (H-0.3) . G

+ CASd

td1 =1096.783

+ 3160

+ CASd

td1 =4.9 . 15.513 . (16.79-0.3) . 0.875

+ 3160

H1 = 16.79 m

td1 =4.9 . D . (H-0.3) . G

tt =4.9 . D . (H-0.3)

St

td1 = 9.85 mm

0.875

td1 = 6.85 + 3

where: tt = Minimum Hydrostatic Test Shell Thickness, in mm

D = Nominal Diameter of The Tank, in mH = Design Liquid Level, in mG = Specific Gravity of The Liquid to be Stored, As Specified By The PurchaserCA = Corrosion Allowance, in mm, As Specified By The PurchaserS = Allowable Stress for The Hydrostatic Test Condition, in Mpa










tt1 =4.9 . 15.513 . (16.79-0.3)

171

tt1 =1253.466

171

H1 = 16.79 m

tt1 =4.9 . D . (H1-0.3)

St

= H +2.31 . P (psi)

G

= 16.79 +2.31 . 00.875

= H +2.31 . P (psi)

G

td =4.9 . D . (H-0.3) . G

+ CASd

tt1 = 7.33 mm

A-36; Width = 1524 mm

0.875





= 15.2635 +2.31 . 00.875

td2 =995.252

+ 3160

+ CASd

td2 =4.9 . 15.513 . (15.2635-0.3) . 0.875

+ 3160

H2 = 15.2635 m

td2 =4.9 . D . (H-0.3) . G

tt =4.9 . D . (H-0.3)

St

td2 = 9.22 mm

0.875

td2 = 6.22 + 3

tt2 =4.9 . 15.513 . (15.2635-0.3)

171

tt2 =1137.431

171

H2 = 15.2635 m

tt2 =4.9 . D . (H1-0.3)

St

= H +2.31 . P (psi)

G

= 15.2635 +2.31 . 00.875

tt2 = 6.652 mm










= H +2.31 . P (psi)

G

= 13.738 +2.31 . 00.875

td =4.9 . D . (H-0.3) . G

+ CASd

A-36; Width = 1524 mm

0.875

td3 =893.788

+ 3160

+ CASd

td3 =4.9 . 15.513 . (13.738-0.3) . 0.875

+ 3160

H3 = 13.738 m

td3 =4.9 . D . (H-0.3) . G

tt =4.9 . D . (H-0.3)

St

td3 = 8.59 mm

0.875

td3 = 5.59 + 3












tt3 =4.9 . 15.513 . (13.738-0.3)

171

tt3 =1021.472

171

H3 = 13.738 m

tt3 =4.9 . D . (H1-0.3)

St

= H +2.31 . P (psi)

G

= 13.738 +2.31 . 00.875

= H +2.31 . P (psi)

G

td =4.9 . D . (H-0.3) . G

+ CASd

tt3 = 5.974 mm

A-36; Width = 1524 mm

0.875





= 12.2125 +2.31 . 00.875

td4 =792.324

+ 3160

+ CASd

td4 =4.9 . 15.513 . (12.2125-0.3) . 0.875

+ 3160

H4 = 12.2125 m

td4 =4.9 . D . (H-0.3) . G

tt =4.9 . D . (H-0.3)

St

td4 = 7.95 mm

0.875

td4 = 4.95 + 3

tt4 =4.9 . 15.513 . (12.2125-0.3)

171

tt4 =905.513

171

H4 = 12.2125 m

tt4 =4.9 . D . (H1-0.3)

St

= H +2.31 . P (psi)

G

= 12.2125 +2.31 . 00.875

tt4 = 5.295 mm










= H +2.31 . P (psi)

G

= 10.687 +2.31 . 00.875

td =4.9 . D . (H-0.3) . G

+ CASd

A-36; Width = 1524 mm

0.875

td5 =690.86

+ 3160

+ CASd

td5 =4.9 . 15.513 . (10.687-0.3) . 0.875

+ 3160

H5 = 10.687 m

td5 =4.9 . D . (H-0.3) . G

tt =4.9 . D . (H-0.3)

St

td5 = 7.32 mm

0.875

td5 = 4.32 + 3












tt5 =4.9 . 15.513 . (10.687-0.3)

171

tt5 =789.554

171

H5 = 10.687 m

tt5 =4.9 . D . (H1-0.3)

St

= H +2.31 . P (psi)

G

= 10.687 +2.31 . 00.875

= H +2.31 . P (psi)

G

td =4.9 . D . (H-0.3) . G

+ CASd

tt5 = 4.617 mm

A-36; Width = 1524 mm

0.875





= 9.1615 +2.31 . 00.875

td6 =589.396

+ 3160

+ CASd

td6 =4.9 . 15.513 . (9.1615-0.3) . 0.875

+ 3160

H6 = 9.1615 m

td6 =4.9 . D . (H-0.3) . G

tt =4.9 . D . (H-0.3)

St

td6 = 6.68 mm

0.875

td6 = 3.68 + 3

tt6 =4.9 . 15.513 . (9.1615-0.3)

171

tt6 =673.595

171

H6 = 9.1615 m

tt6 =4.9 . D . (H1-0.3)

St

= H +2.31 . P (psi)

G

= 9.1615 +2.31 . 00.875

tt6 = 3.939 mm










= H +2.31 . P (psi)

G

= 7.636 +2.31 . 00.875

td =4.9 . D . (H-0.3) . G

+ CASd

A-36; Width = 1524 mm

0.875

td7 =487.932

+ 3160

+ CASd

td7 =4.9 . 15.513 . (7.636-0.3) . 0.875

+ 3160

H7 = 7.636 m

td7 =4.9 . D . (H-0.3) . G

tt =4.9 . D . (H-0.3)

St

td7 = 6.05 mm

0.875

td7 = 3.05 + 3












tt7 =4.9 . 15.513 . (7.636-0.3)

171

tt7 =557.637

171

H7 = 7.636 m

tt7 =4.9 . D . (H1-0.3)

St

= H +2.31 . P (psi)

G

= 7.636 +2.31 . 00.875

= H +2.31 . P (psi)

G

td =4.9 . D . (H-0.3) . G

+ CASd

tt7 = 3.261 mm

A-36; Width = 1524 mm

0.875





= 6.1105 +2.31 . 00.875

td8 =386.468

+ 3160

+ CASd

td8 =4.9 . 15.513 . (6.1105-0.3) . 0.875

+ 3160

H8 = 6.1105 m

td8 =4.9 . D . (H-0.3) . G

tt =4.9 . D . (H-0.3)

St

td8 = 5.42 mm

0.875

td8 = 2.42 + 3

tt8 =4.9 . 15.513 . (6.1105-0.3)

171

tt8 =441.678

171

H8 = 6.1105 m

tt8 =4.9 . D . (H1-0.3)

St

= H +2.31 . P (psi)

G

= 6.1105 +2.31 . 00.875

tt8 = 2.583 mm










= H +2.31 . P (psi)

G

= 4.585 +2.31 . 00.875

td =4.9 . D . (H-0.3) . G

+ CASd

A-36; Width = 1524 mm

0.875

td9 =285.004

+ 3160

+ CASd

td9 =4.9 . 15.513 . (4.585-0.3) . 0.875

+ 3160

H9 = 4.585 m

td9 =4.9 . D . (H-0.3) . G

tt =4.9 . D . (H-0.3)

St

td9 = 4.78 mm

0.875

td9 = 1.78 + 3












tt9 =4.9 . 15.513 . (4.585-0.3)

171

tt9 =325.719

171

H9 = 4.585 m

tt9 =4.9 . D . (H1-0.3)

St

= H +2.31 . P (psi)

G

= 4.585 +2.31 . 00.875

= H +2.31 . P (psi)

G

td =4.9 . D . (H-0.3) . G

+ CASd

tt9 = 1.905 mm

A-36; Width = 1524 mm

0.875





= 3.0595 +2.31 . 00.875

td10 =183.54

+ 3160

+ CASd

td10 =4.9 . 15.513 . (3.0595-0.3) . 0.875

+ 3160

H10 = 3.0595 m

td10 =4.9 . D . (H-0.3) . G

tt =4.9 . D . (H-0.3)

St

td10 = 4.15 mm

0.875

td10 = 1.15 + 3

tt10 =4.9 . 15.513 . (3.0595-0.3)

171

tt10 =209.76

171

H10 = 3.0595 m

tt10 =4.9 . D . (H1-0.3)

St

= H +2.31 . P (psi)

G

= 3.0595 +2.31 . 00.875

tt10 = 1.227 mm










= H +2.31 . P (psi)

G

= 1.534 +2.31 . 00.875

td =4.9 . D . (H-0.3) . G

+ CASd

A-36; Width = 1524 mm

0.875

td11 =82.076

+ 3160

+ CASd

td11 =4.9 . 15.513 . (1.534-0.3) . 0.875

+ 3160

H11 = 1.534 m

td11 =4.9 . D . (H-0.3) . G

tt =4.9 . D . (H-0.3)

St

td11 = 3.51 mm

0.875

td11 = 0.51 + 3




SHELL COURSE#1 SUMMARY

trequired = MAX (td1;tt1;tminAPI650)

= MAX (9.85;7.33;6)

trequired = 9.85 mm

tactual = 12 mm

Weight = π . D . L . ρ . tactual

= 3.14 . 15.513 . 1.524 . 7.850 . 12= 6997 kg



= MAX (9.22;6.652;6)

trequired = 9.22 mm

tactual = 12 mm


= 3.14 . 15.513 . 1.524 . 7.850 . 12= 6997 kg

H11 = 1.534 m

tt11 =4.9 . D . (H1-0.3)

St

= H +2.31 . P (psi)

G

= 1.534 +2.31 . 00.875

tt11 = 0.549 mm

tt11 =4.9 . 15.513 . (1.534-0.3)

171

tt11 =93.801

171



= MAX (8.59;5.974;6)

trequired = 8.59 mm

tactual = 10 mm


= 3.14 . 15.513 . 1.524 . 7.850 . 10= 5830 kg



= MAX (7.95;5.295;6)

trequired = 7.95 mm

tactual = 10 mm


= 3.14 . 15.513 . 1.524 . 7.850 . 10= 5830 kg



= MAX (7.32;4.617;6)

trequired = 7.32 mm

tactual = 10 mm


= 3.14 . 15.513 . 1.524 . 7.850 . 10= 5830 kg



= MAX (6.68;3.939;6)

trequired = 6.68 mm

tactual = 8 mm


= 3.14 . 15.513 . 1.524 . 7.850 . 8= 4664 kg



= MAX (6.05;3.261;6)

trequired = 6.05 mm

tactual = 8 mm


= 3.14 . 15.513 . 1.524 . 7.850 . 8= 4664 kg



= MAX (5.42;2.583;6)

trequired = 6.00 mm

tactual = 8 mm


= 3.14 . 15.513 . 1.524 . 7.850 . 8= 4664 kg



= MAX (4.78;1.905;6)

trequired = 6.00 mm

tactual = 8 mm


= 3.14 . 15.513 . 1.524 . 7.850 . 8= 4664 kg



= MAX (4.15;1.227;6)

trequired = 6.00 mm

tactual = 8 mm


= 3.14 . 15.513 . 1.524 . 7.850 . 8= 4664 kg



= MAX (3.51;0.549;6)

trequired = 6.00 mm

tactual = 6 mm


= 3.14 . 15.513 . 1.524 . 7.850 . 6= 3498 kg

III. Bottom Calculation

FLAT BOTTOM : ANNULAR PLATE DESIGNBottom Plate Material: A-36/SS400Annular Bottom Plate Material: A-36/SS400

<Weight of Bottom Plate>

Bottom_Area = 0.25 . π (ID - 2. AnnRing Width)2

= 0.25 . π (15.513 - 2 . 0.889)2

= 148.17 m2

Annular_Area = 0.25 . π(Bottom Dia)2 - Bottom Area= 0.25 . 3.14 (15.737)^2 - 148.17

= 46.34 m2

Weight = ρ (tb . Bottom_Area + ta . Annular_Area)

= 7850 (0.008 . 148.17 + 0.012 . 46.34)= 13670 kg

<API-650> Calculation of Hydrostatic Test Stress & Product Design Stress (per API-650 Section 3.5.1)

td1 = Bottom (1st) Shell Course Thickness

H = Max. Liq. Level + P(psi)/(0.433)= 55.085 + (0)/(0.433)= 55.085 ft= 16.79 m

St = Hydrostatic Test Stress in bottom (1st) Shell Course

St = 104.46 MPa

Sd = Product Design Stress in bottom (1st) Shell Course

= 121.86 MPa

For Non-Annular Bottom Plates,

tbt,min = 6 mm (per Section 3.4.1)

tbt = tbt,min

tbt = 6 mm

tbt,acc = Actual Non-Annular Bottom hickness

= 8 mm

=4.9 . D . (H - 0.3)

td1

=4.9 . 15.513 . (16.79- 0.3)

12

=4.9 . 15.513 . (16.79- 0.3). 0.875

12 - 3

=1096.78

9

=1253.47

12

=4.9 . D . (H - 0.3). G

td1 - CA

For Annular Bottom Plates (per API-650 3.5.3)

tann,min = 6 mm (API-650 Table 3-1 -- Annular Bottom-Plate Thickness)

tann = tann,min

tann = 6 mm

tann,acc = Actual Annular Ring thickness

= 12 mm

For Annular Bottom Plates (per API-650 3.5.2)

Wann,acc = Acctual Annular Ring Width

Wann,acc = 1001 mm

Wmin = Minimum Annular Ring Width

Wmin = 673 mm (600mm, min annular bottom width, API Sec. 3.5.2)

<FLAT BOTTOM : ANNULAR SUMMARY>

Bottom Plate Material : A-36t btm min = 6 mm

t btm actual = 8 mm

Annular Bottom Plate Material : A-36t ann min = 6 mm

t ann actual = 12 mm

Minimum Annular Ring Width = 673 mmActual Annular Ring Width = 1001 mm

=215 . tann

√ (H . G)

=215 . 12

√ (16.790 . 0.875)

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