Tank Calculation T-03

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Rev.

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

REPORT

Stress Calculation

Tank-03

Diesel Fuel Tank Terminal - Pontianak

PT. FAJAR TEKNIK MANDIRI

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Design Standard : API-650 10th Edition Addendum 4, Dec 2005

Diameter : 15.513 m

Height : 16.79 m

Max. Liquid Level : 16.79 m Fluid Specific Gravity : 0.875

Material : A-36

Tank Joint Eficiency : 0.85 Tank Corr. Allowance : 3 mm Top 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 Design

t. 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 8 9 4.8 1.9 6 4664 8 10 4.2 1.2 6 4664 8 5 7.3 4.6 6 5830 10 6 6.7 3.9 6 4664 8 7 6.1 3.3 6 4664 8 2 9.2 6.7 6 6997 12 3 8.6 6.0 6 5830 10 4 8.0 5.3 6 5830 10 1 9.9 7.3 6 6997 12

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I. Data Sheet

Equipment tag no/s = T-03

Service =

Number of Tanks = Units

Diameter (D) = m

Tank Height (H) = m

Net capacity required (V) = m3

Type of Bottom = Cone Down

Type 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 Applicable Emptying rate (m3/hr) = (m3/hr) Heat load KW/hr = Not Applicable

Storage pressure = Psig Tank mixers = No

Design 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 = Kg

Bottom = Kg

Foundation type = TBA by Contractor Int. roof = Kg Corrosion allowance(CA) = 3 mm

Minimum thickness in

Shell (t_shell_min)= 6 mm

Roof (t_roof_min)= 5 mm Cleanout door = No Bottom (t_bottom_min)= 6 mm

Joint efficiency ( E ) = 0.85

Cathodic protection= No

Type of floating roof= Not applicable Tank roof type = Self supported Bottom Leak detect= Required & As per std

Bottom = 1 in 30 Roof = As per code Insulation thickness

Shell = 0 m

Roof = 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 entry

Vortex breaker = Required Inlet diffuser = Required Floating suction = No Foam pipe supports =

2" Power / data conduits = Side entry mixers = No Deluge pipe supports = Process

Mechanical

Design & Constn. Code = API 650 10th edition, Add.3 Finishing and painting= General Diesel 1 15.513 16.790 3173

Slope Shell 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 – at Periphery /Centre Required (for future

installation) Stilling well = -Heating/cooling

coils L/D = No Accessories

Pressure/vacuum vent = Required and as per code

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Hydro Test Stress (ST)Yield Strength

Bottom plate = Psi Psi Psi

Shell = Psi Psi Psi

Roof plate = Psi Psi Psi

Shell lining = Psi Psi Psi

Roof lining = Psi Psi Psi

Nozzle/man way lining = Psi Psi Psi

Nozzle flanges = Nozzle necks = = Heating/cooling coils = No

Bolts = ASTM A193 Gr. B7 Galvanised Nuts = ASTM A194 Gr.2H Galvanised Welding fittings = A234 WPB/A105

Gaskets = SS 316 spiral wound graphite filled Insulation supports = No

Stairs/handrails/platforms= ASTM A36 or equivalent (no galvanising only painted) Earthing boss = Furse make

Internal 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-105 A-106 Gr B None -- -- --None -- -- --A-36 23200 24857 36000 A-36 23200 24857 36000 Level &Temperature

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II. Shell Calculation

SHELL COURSE DESIGN (Bottom Course is #1) Course #1

Material =

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 m H = Design Liquid Level, in m

G = Specific Gravity of The Liquid to be Stored, As Specified By The Purchaser CA = Corrosion Allowance, in mm, As Specified By The Purchaser

S = 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 . 0 0.875 A-36; Width = 1524 mm 0.875 td = 4.9 . D . (H-0.3) . G + CA Sd td1 = 1096.783₁₆₀ + 3 + CA Sd td1 = 4.9 . 15.513 . (16.79-0.3) . 0.875₁₆₀ + 3 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

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

S = Allowable Stress for The Hydrostatic Test Condition, in Mpa H1 = Effective Liquid Head at Design pressure

Course #2

Material =

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 . 0_0.875 = H + 2.31 . P (psi)_G td = 4.9 . D . (H-0.3) . G + CA Sd tt1 = 7.33 mm A-36; Width = 1524 mm 0.875

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HYDROSTATIC TEST CONDITION G = Specific Gravity

= 15.2635 + 2.31 . 0 0.875 td2 = 995.252₁₆₀ + 3 + CA Sd td2 = 4.9 . 15.513 . (15.2635-0.3) . 0.875₁₆₀ + 3 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 = 1137.431₁₇₁ H2 = 15.2635 m tt2 = 4.9 . D . (H1-0.3) St = H + 2.31 . P (psi)_G = 15.2635 + 2.31 . 0_0.875 tt2 = 6.652 mm

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Course #3

Material =

HYDROSTATIC TEST CONDITION G = Specific Gravity = H + 2.31 . P (psi) G = 13.738 + 2.31 . 0 0.875 td = 4.9 . D . (H-0.3) . G + CA Sd A-36; Width = 1524 mm 0.875 td3 = 893.788₁₆₀ + 3 + CA Sd td3 = 4.9 . 15.513 . (13.738-0.3) . 0.875₁₆₀ + 3 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

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Course #4

Material =

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Course #5

Material =

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Course #6

Material =

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Course #7

Material =

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Course #8

Material =

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Course #9

Material =

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Course #10

Material =

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Course #11

Material =

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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 Weight = π . D . L . ρ . tactual = 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 . 0_0.875 tt11 = 0.549 mm tt11 = 4.9 . 15.513 . (1.534-0.3) 171 tt11 = 93.801 171

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= MAX (6.05;3.261;6) trequired = 6.05 mm

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Weight = π . D . L . ρ . tactual

= 3.14 . 15.513 . 1.524 . 7.850 . 8

= 4664 kg

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III. Bottom Calculation

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

Annular 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)_t d1 = 4.9 . 15.513 . (16.79- 0.3)₁₂ = 4.9 . 15.513 . (16.79- 0.3). 0.875_{12 - 3} = 1096.78 9 = 1253.47₁₂ = 4.9 . D . (H - 0.3). G_t d1 - CA

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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-36

t btm min = 6 mm

t btm actual = 8 mm

Annular Bottom Plate Material : A-36

t ann min = 6 mm

t ann actual = 12 mm

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

= 215 . tann

√ (H . G) = 215 . 12