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PETROVIETNAM ENGINEERING - PVE

TANK WATER CALCULATION SHEET

Owner : PETROVIETNAM - VQPP Discipline: Mechanical

Project : QUANG TRACH 1 POWER PLANT - 2x600MW Document No. :

Parkage Title : LIMESTONE HANDLING SYSTEM QT1-PVE-00KKS-M-Lot?-xxx

Phase: Detailed Engineering Versio A Date: 17-Apr-23

Calculated By : Reviewed By : Approved By

Ho Ngoc Thanh Quang Huynh Nhat Quang Huynh Nhat Quang

NO. PARAMETERS SYMBOL VALUE UNIT REMARKS

I. INPUT DATA

1

Applied Standards:

API 650 11th Edition, June 2007 Welded Steel Tank For Oil Storage

2 AWWA D100-96 Welded Steel Tank For Water Storage

3

System Requirement

4 Name Tank Tank Water

5 Required Number of Tanks N 1

6 Water Requirement Wr 24 h

7 Volume Requirement 200

8 Product stored Water

9 Specific Gravity G 1

Density product γ 1000

10 Time Store T 4 h

11 Useful Volume η 78 %

12 Design Volume Vd 256 m3

Shape & Level Requirement

13 Tank inside diameter D 6 m

14 Tank height H 10 m

15 Design Liquid Level D.L.L 10 m

16 Max. Liquid Level Max.L.L 9.50 m

17 Level Alarm High High L.A.H.H 9.00 m

18 Level Alarm High L.A.H 8.50 m

19 Level Alarm Low L.A.L 1.20 m

20 Level Alarm Low Low L.A.L.L 1.00 m

21 Roof type Floating roof (Single deck)

22 Bottom slope Bs 0.05 Cone down 1/20

23 Height of Bottom Slope Hb 0.15 m

Material & Corrosion Requirement

24 Material Carbon Steel

25 Material Code A 36M (A 36)

26 Allowable stress for the Design condition Sd 160

27 Allowable stress for the Hydrostatic test condition St 171

28 Joint efficiency E 0.85

29 Thickness minimum tmin 6 mm

30 Shell, Bottom & Manhole & Nozzle CA 3 mm

31 Roof & Roof Structure CAr 1 mm

II CALCULATION

A Volume of Tank

1 Geometric Volume 282.7

2 Normal Volume 256.0

3 Net Working Volume 206.48

B Plate Thickness of Shell,Roof, Bottom & Annular Bottom

No. Layer No. Transposed width (mm)

0 The first of shell 6.00 3.00 4.88 2000 1.86 8.00 974.28

1 The second of shell 6.00 3.00 4.45 2000 1.46 8.00 974.28

2 The third of shell 6.00 3.00 4.02 2000 1.05 6.00 2000.00

3 The fourth of shell 6.00 3.00 3.58 2000 0.65 6.00 2000.00

4 The fiveth of shell 6.00 3.00 3.15 2000 0.24 6.00 2000.00

API 620 Addendum 3 December 1998 Design & Construction of Welded Large Low-Pressure Storage Tank

Vre m3

Kg/m3

N/mm2

N/mm2

Corrosion Allowable

VG m3

VN m3

VW m3

Minimum Thickness

(mm)

Abrasion Allowable

(mm)

Design Thickness

(mm)

Steel Plate Width(mm)

Hydrostatic Test

(mm)

Selected Thickness

(mm)

2/8

5 where: Design Thickness = (4.9*D*(H-0.3)*γ)/(Sd*E)+ CA, Hydrostatic test = 4.9*D*(H-0.3)/(E*St), Transposed = W*sqrt(tt/ts)^5

6Roof plate thickness

Calculatedtf

7.00 mm

7 Selected 7.00 mm

8Bottom plate thickness

Calculatedtb

9.00 mm

9 Selected 10.00 mm

10Annular plate thickness

Calculatedtab

9.00 mm

11 Selected 10.00 mm

12 CalculatedL

697.55 mm Lmin = 600 mm

13 Selected 700 mm

C Basic Design Weight

1 Weight of Tank 10061.89 Kg

2 Spiral Stairway & Handrail SH 12700 Kg

4 Weight of Empty Tank 34142.84 Kg

5 Weight of Filling Silo W 316886.18 Kg

D Reinforcement plates at welding lines of Wall Silo

1 Welding Internal of Wall Tank ri 1.50 mm As API STANDARD 650 11th Edition, June 2007

2Vertical joint rev 2.50 mm As API STANDARD 650 11th Edition, June 2007

Horizontal Joint reh 3.00 mm As API STANDARD 650 11th Edition, June 2007

Note:Ex: Above results are just calculated per once unit of 600MW

A grater width of annular plate

WC

W0

Welding External of Wall Tank

PETROVIETNAM ENGINEERING - PVE

WATER TANK DESCRIPTION

Legend:

0 : Layer 0 of wall Tank L.A.H : Level Alarm High

.. : Layer i of wall Tank L.A.L : Level alarm low

n : Layer ... of wall Tank L.A.L.L : Level alarm low low

t0 : Thickness of wall Tank at layer 0 L.A.H.H : Level Alarm High High

… : Thickness of wall Tank at layer i

tn : Thickness of wall Tank at layer n

W0 : Width of Tank Layer 0

… : Width of Tank Layer i

Wn : Width of Tank Layer n

N1 : Nozzle 1

N.. : Nozzle …

Nn : Nozzle n

MH1 : Manhole 1

MH2 : Manhole 2

D : Diameter internal of Tank

H : Height of Tank

Note:

PETROVIETNAM ENGINEERINGEquipment Code

TANK WATER DATASHEETSheet No.

Client : PetroVietNam - VQPP Date :Project : Quang Trach 1 Power Plant 2x600MW Proj. No. :Location Limestones Handling System

Tank Tag No. :PID No. :Service :

Operating Pressure :Ambient Temperature, DegC : Max : Min :

Number of Tank : Operating : 1 Standby:

Orientation of Tank : Vertical Horizontal Other

No. of Outlet (Reference) :Single - OutletDouble - OutletMulti - Outlet

Location : Outdoor IndoorMaterial Code Carbon Steel A 36M (A 36)Nozzle Neck Nozzle Neck Pipe A 36M (A 36) A106 Gr.BNozzle Fittings Nozzle Flangs/Bins A 234 WPB A 105Name Plate Stairways & Handrails SS 316 (Stainless Steel) A 36/ JIS G3101-SS400/ CT38Dome Roof Bottom Plate A 36M (A 36) A 36M (A 36)Lifting Lugs (on Pad) Internal/External Bolts/Nuts A 36M (A 36) A 193 Gr.B7/A 194 Gr.2HInternal Pipe Bracket Support A106 Gr.B A 36/ JIS G3101-SS400/ CT38Reinforcing pads for External Reinforcing pads for Internal A 36M (A 36) A 36M (A 36)Dome Roof Structure Earthing Boss A 36/ JIS G3101-SS400/ CT38 SS 316 (Stainless Steel)Stiffening Ring/Wind Girder Anchor Chairs A 36M (A 36) A 36/ JIS G3101-SS400/ CT38Floating Roof Structure/Deck Gasket (For Bins/Flangs/Manhole Vendor Recommendation PTFE (Polytetrafluoroethylene)

Type of Bottom Slope To Center 1/120

Type of Roof Dome Roof with Internal Support & Internal Floating Roof

Welding Test

Postweld Heat Treatment Vendor RecommendationRadiography Exam Vendor RecommendationMagnetic Particale Vendor RecommendationUltrasonic Vendor Recommendation

Tank TestImpact Test Vendor RecommendationHydrostatic Test Vendor Recommendation

Tank Thickness Layer each Width of Layer each 8, 8, 6, 6, 6 mm 2000 mmBottom of Tank Annular of Bottom 10 mm 10 mmRoof of Tank Deck Plate 6 mm Vendor RecommendationCorrosion Allowable Reinforcement at Welding lines 3 mm A 36Product Storage State Water LiquidDensity Painting Min: 1000 Max: kg/m3 As Per Painting Spec.

Equipments

Name Mark Q'ty Size (mm) Rating Face Location Remark

Manhole MH1 1 24"API 650

Shell Manhole

Manhole MH2 1 24" Roof Manhole

Outlet N1 1 6" 150# RF On Shell SOInlet N2 1 4" 150# RF On Shell SODrain N3 1 2" 150# RF On Shell SOVent Flame Assester N4 1 6" 150# RF On Roof SOGause Hat N5 1 2" 150# RF On Roof SOTemprature Sensor N6 1 2" 150# RF On Roof SOStanby N7 1 Hole 150# RF On Shell SOStanby N8 1 Hole 150# RF On Shell SO

Parameters Units Minimum Normal MaximumTank inside diameter m 6.00Tank height m 10.00Design Liquid Level m 10.00Max. Liquid Level m 9.50Level Alarm High High m 9.00Level Alarm High m 8.50Level Alarm Low m 1.20Level Alarm Low Low m 1.00Height of Bottom Slope m 0.15CA Shell, Bottom, Manhole & Nozzle mm 3Corrosion Alowance (CA) Roof & Roof Structure mm 1Geometric Volume 282.74

Normal Volume 256.02

Net Working Volume 206.48Weight of Empty Tank Kg 34142.84Weight of Filling Tank Kg 316886.18

m3

m3

m3

Legend:

0 : Layer 0 of wall Tank L.A.H : Level Alarm High

.. : Layer i of wall Tank L.A.L : Level alarm low

n : Layer ... of wall Tank L.A.L.L : Level alarm low low

t0 : Thickness of wall Tank at layer 0 L.A.H.H : Level Alarm High High

… : Thickness of wall Tank at layer i

tn : Thickness of wall Tank at layer n

W0 : Width of Tank Layer 0

… : Width of Tank Layer i

Wn : Width of Tank Layer n

N1 : Nozzle 1

N.. : Nozzle …

Nn : Nozzle n

MH1 : Manhole 1

MH2 : Manhole 2

D : Diameter internal of Tank

H : Height of Tank

Note: