STORAGE TANK SPECIFICATION (English Units)
Nass Mechanical 2 Location : 3 Manufacturer : 4 P&ID No.
Design Engineer :
Seth A. Duazo
Mfr Ref. No. :
Plot Plan No. :
Rev. No.
11-T-503
Equipment No. :
11T-503
1 of 1
J543
Project No.
USED LUBE OIL Unit : Al Kharj, Saudi Arabia Model : NMC
1 Service :
Sheet
Two
No. Req'd :
Other Ref. Dwg No. :
5 6 7 8
M
P
A
9
G
10 11 12
125.30 Ft
13 14
H
46.00 Ft
15 16
24" X 36" FLUSH CLEANOUT
E
17
E
18
L
19
F
D
20 21
N1
22
N2
I
J
23 24 Shell Diameter : 25 Roof Type :
125.30 Cone
26
Feet
46.00 Feet
Shell Height :
LUBE OIL
NOZZLES/CONNECTIONS
0.9000
Sp. Gr. :
28 This Tank Service is considered:
Cyclic
5.5
29 Vapor Pressure @ Max. Operating Temperature 30 Flash Point (Closed Cup) :
ºF
Mark
Service
Qty
Size
TH1
Roof Manway
1
24"
TH
Shell Manway
2
24"
Operating
Design
psia
TH2
Flush Cleanout MW
1
24"x36" 8"
31 Negative Pressure
oz/in.2
0.00
0.50
G
Stilling Vent
1
32 Positive Pressure
psig
1.00
2.00
H
Temperature Indicator
0
0
B
Outlet Nozzle
1
12"
A
Fill Nozzle
1
8"
K
Mixer Manway
0
0
D
Water Draw Nozzle
1
4"
M
Top Center Vent
1
4"
F
Sample Tap
2
3/4" 3/4"
----
33 (Hydro)test Pressure expressed in Psig 34 Minimum Fluid Temperature
ºF
35 Maximum Fluid Temperature
ºF
36 Emergency Vacuum Design ? 37
No
-25 200 Set @
0.0.3
oz/in.2
METALLURGY
38
Component
Barrels
Sloped
OPERATING/DESIGN DATA
27 Fluid Stored :
101,026
Nominal Volume :
Bottom Floor Type:
Material
CA, in.
Remarks
39 Shell & Bottom
A36
0.0625
Normalized
F
Sample Tap
1
40 Roof
A36
0.0313
Normalized
P
Roof Nozzle
1
4"
D
Spare
1
3/4"
41 Lining/Coating 42 43 Stress Relieve ? 44
No
for:
Rating 150# 125# 125# 150# 150# 150# 150# 150# 150# 150# 150# 150# 150# 150# 150# 150#
Face F. F. R. F. R. F. F. F. L. J. API L. J. F. F. R. F. API R. F. F. F. L. J. API API API
CONSTRUCTION/FABRICATION
API 650 LATEST EDITION
45 Code (as appl.):
Internals (attach separate sheet, as req'd):
46 Design Specifications: 47 Tank Insulation ?
No
48 Insulation Type: 49 Fireproofing ?
Others:
Sump Thickness :
in.
Hot
No
Radiograph Paint Spec.
3
Seismic Zone 85
EmptyTank Weight
Design Wind Velocity % Inspection Req'd ? lb
120
mph
Yes
Full of Water
lb
50 Remarks 51
1. Items marked with an asterisk (*) to be completed by Vendor/Fabricator.
52
2. Rafter supported type cone roof
Approvals Rev 0
Date
Description J543
By
Chk.
Appr.
Rev
Date
Description
By
Chk.
Appr.
11/04/2011 Rev: 0
API 650 Storage Tank
TANK 11-T-503A SHELL PLATE DESIGN CALCULATION by ONE FOOT METHOD D = Normal tank diameter , in feet H = depth of tank , in feet
125.30 46.00
38.2 meters 14.0 meters
Shell Plate Design : FROM ( BOTTOM COURSE) PLATE TO (TOP COURSE) PLATE SG = design Specific gravity of liquid Sd = allowable Stress for Design condition E = joint efficiency St = allowable stress A36 Hydro Test CA = Corrosion Allowance For First Course (Bottom) A36 Plate Provided ; thickness:
0.9 23,200 1.00
160 Mpa
24,900 0.1180
171 Mpa 3.00 mm
20mm
As per API 5.6.3.2 In US Customary units;
td = 2.6(D)(H -1)(SG)/Sd =
0.569
14.45 mm
0.589 td = Minimum shell course thickness plus C.A, in inches = 0.707 D = Normal tank diameter , in feet = 125.30 H = depth of tank , in feet = 46.00 SG = design Specific gravity of liquid = 1.00 Sd = allowable Stress for Design condition 23,200 E = joint efficiency 1.00 St = allowable stress A36 Hydro Test 24,900 CA = Corrosion Allowance 0.1180
14.95 mm
tt = 2.6(D)(H-1)/St =
For Second Course A36 Plate
Provided thickness:
17.952 mm
18.000
As per API 5.6.3.2 In US Customary units;
td = 2.6(D)(H -1)(SG)/Sd =
0.632
16.05 mm
0.589 td = Minimum shell course thickness plus C.A, in inches = 0.651 D = Normal tank diameter , in feet 125.30 H = depth of tank , in feet 39.45 SG = design Specific gravity of liquid = 1.00 Sd = allowable Stress for Design condition 23,200 E = joint efficiency 1.00 St = allowable stress A36 Hydro Test 24,900 CA = Corrosion Allowance 0.0625
14.95 mm
tt = 2.6(D)(H-1)/St =
For Third Course A36 Plate
Provided thickness:
16.54 mm
16.000
As per API 5.6.3.2 In US Customary units;
td = 2.6(D)(H -1)(SG)/Sd =
0.540
13.72 mm
0.503 td = Minimum shell course thickness plus C.A, in inches = 0.566 D = Normal tank diameter , in feet 125.30 H = depth of tank , in feet 32.91 SG = design Specific gravity of liquid = 1.00 Sd = allowable Stress for Design condition 23,200 E = joint efficiency 1.00 St = allowable stress A36 Hydro Test 24,900 CA = Corrosion Allowance 0.0625
12.78 mm
tt = 2.6(D)(H-1)/St =
Seth A. Duazo Nass Mechanical
Page 2 of 5
14.37 mm
FileName: 38735700.xls WorkSheet: 11T-503A
11/04/2011 Rev: 0
API 650 Storage Tank
TANK 11-T-503A SHELL PLATE DESIGN CALCULATION by ONE FOOT METHOD D = Normal tank diameter , in feet H = depth of tank , in feet For Fourth Course A36 Plate
125.30 46.00
Provided thickness:
38.2 meters 14.0 meters
12.000
As per API 5.6.3.2 In US Customary units;
td = 2.6(D)(H -1)(SG)/Sd =
0.488
12.40 mm
0.417 td = Minimum shell course thickness plus C.A, in inches = 0.480 D = Normal tank diameter , in feet 125.30 H = depth of tank , in feet 26.36 SG = design Specific gravity of liquid = 1.00 Sd = allowable Stress for Design condition 21,300 E = joint efficiency 1.00 St = allowable stress A36 Hydro Test 24,900 CA = Corrosion Allowance 0.0625
10.60 mm
tt = 2.6(D)(H-1)/St =
For Fifth Course A36 Plate
Provided thickness:
12.19 mm
10mm
As per API 5.6.3.2 In US Customary units;
td = 2.6(D)(H -1)(SG)/Sd =
0.388
9.85 mm
0.332 td = Minimum shell course thickness plus C.A, in inches = 0.394 D = Normal tank diameter , in feet 125.30 H = depth of tank , in feet 19.75 SG = design Specific gravity of liquid = 1.00 Sd = allowable Stress for Design condition 21,300 E = joint efficiency 1.00 St = allowable stress A36 Hydro Test 24,900 CA = Corrosion Allowance 0.0625
8.43 mm
tt = 2.6(D)(H-1)/St =
For Sixth Course A36 Plate
Provided thickness:
10.02 mm
8mm
As per API 5.6.3.2 In US Customary units;
td = 2.6(D)(H -1)(SG)/Sd =
0.258
6.56 mm
0.245 td = Minimum shell course thickness plus C.A, in inches = 0.308 D = Normal tank diameter , in feet 125.30 H = depth of tank , in feet 13.19 SG = design Specific gravity of liquid = 0.9 Sd = allowable Stress for Design condition 21,300 E = joint efficiency 1.00 St = allowable stress A36 Hydro Test 24,900 CA = Corrosion Allowance 0.0625
6.23 mm
tt = 2.6(D)(H-1)/St =
For Seventh Course A36 Plate
Provided thickness:
7.82 mm
8mm
As per API 5.6.3.2 In US Customary units;
td = 2.6(D)(H -1)(SG)/Sd =
0.187
4.74 mm
0.160 td = Minimum shell course thickness plus C.A, in inches = 0.222 D = Normal tank diameter , in feet 125.30 H = depth of tank , in feet 6.63 SG = design Specific gravity of liquid = 1 Sd = allowable Stress for Design condition 21,300 E = joint efficiency 1.00 St = allowable stress A36 Hydro Test 24,900 CA = Corrosion Allowance 0.0625
4.05 mm
tt = 2.6(D)(H-1)/St =
Seth A. Duazo Nass Mechanical
Page 3 of 5
5.64 mm
FileName: 38735700.xls WorkSheet: 11T-503A
11/04/2011 Rev: 0
API 650 Storage Tank
TANK 11-T-503A SHELL PLATE DESIGN CALCULATION by ONE FOOT METHOD D = Normal tank diameter , in feet H = depth of tank , in feet
125.30 46.00
38.2 meters 14.0 meters
BOTTOM PLATE DESIGN: As per API 650 11th Ed. 2009 Add. 2 Sect. 5.4.1;
0.25 Minimum Nominal Thickness excluding corrosion allowance, Inch 0.13 Corrosion Allowance for Bottom Plate 0.25 Required Thickness of Bottom Plate 0.38 Used bottom plate thickness 70.87 Minimum Nominal Width, Inch 78.74 Used bottom plate Width,in
6.35 mm 3.18 mm 6.35 mm 10 mm 1800.0 mm 2000.0 mm
ANNULAR BOTTOM PLATE DESIGN: As per API 650 11th Ed. 2009 Add. 2 Sect. 5.5.2;
Minimum Annular plate Width shall 215 be =tb ( GH )0.5 or a Minimum of Annular Plate width provided; in
28.62
727 mm
23.62
600 mm
29.92 760 mm Where: tb = Annular plate thickness, mm H = maximum Design Liquid level, Meter G = liquid Specific gravity
HENCE, OK.
ROOF PLATE DESIGN: ( Non Frangible roof Tank) As per API 650 11th Ed. 2009 Add. 2 Sect. 5.10.2.2,
Minimum Nominal Thickness excluding corrosion allowance = 0.19 0 Corrosion Allowance for Roof Plate, = 0.19 Required Thickness of Roof Plate = 0.19 Used roof plate thickness =
5 mm 0 mm 5 mm 5 mm
SHELL STABILITY CHECK; As per API 650 11th Ed. 2009 Add. 2 Sect. 5.9.7.1
The Maximum height for the unstiffined shell shall be calculated as follows: H1 = 600,000*(t)*(((t/D)^3)^0.5)*(120 /V)^2 23.82
7.26 Meters Where; H1 = Vertical Distance in ft, betwwen the intermediate wind girder and the top angle of the shell or the top wi t = as built thickness, unless otherwise specified of the thinnest shell course (in Inches) D = Nominal Tank height, Ft V = Designed wind speed (3 sec gust)mph
Seth A. Duazo Nass Mechanical
Page 4 of 5
FileName: 38735700.xls WorkSheet: 11T-503A
11/04/2011 Rev: 0
API 650 Storage Tank
TANK 11-T-503A SHELL PLATE DESIGN CALCULATION by ONE FOOT METHOD D = Normal tank diameter , in feet
125.30
H = depth of tank , in feet
46.00
38.2 meters 14.0 meters
Equivalent stable height of shell at ' t ' min. HE = sum He He = W( ' t 'min / ' t 'actual)^2.5 As per API 650 11th Ed. 2009 Add. 2 Sect. V.8.1.4 (b) Course Width (M) t' min (mm) Wtr (Meter) 1 2 20.00 0.202 2 2 16.00 0.353 3 2 15.00 0.414 4 2.0 12.00 0.726 5 2.0 10.00 1.145 6 2.0 8.00 2.000 7 2.0 8.00 2.000 Minimum Shell Thickness = 8mm Transformed shell height, W' tr Maximum height of unstiffined shell=
6.840
Meters
7.26 Meters
H1 > Wtr, hence intermediate wind girder is not required
Seth A. Duazo Nass Mechanical
Page 5 of 5
FileName: 38735700.xls WorkSheet: 11T-503A
