Ref. Std
CALCULATON SHEET
Dated
: Dec, 2012
Fuel Diesel Storage Tank
Page
: 1 of 3
API Std. 650, 11th Edition, June 2007, Eff Date May May 2010 API Std. 653, Fourth Edition, Edition, Addendum 1, August 2010
A. Tank Data Type of Tank Tank Diameter (D) Tank Height (Ht) Liquid Level (Hl) Service Liquid Specific Gravity (G) Joint Efficiency (E) Capacity (Volume) Shell Material Shell Plate Size W 1-2 L1-2 W3 L3 Product Stress S (Lower 2 Courses) S (Upper 2 Courses) Hydrotest Stress St (Lower 2 Courses) St (Upper 2 Courses)
= = = = = = = = =
Above Ground, Cone Roof 2.9 m = 9.51 4.978 m = 16.33 4.5 m = 14.76 Fuel Diesel 0.87 0.7 30000 lt ltr = 30 Unknown
= = = =
1.52 6.12 1.48 6.12
m m m m
; ; ; ;
= =
23600 lbf/in2 26000 lbf/in2
= =
26000 lbf/in2 27000 lbf/in2
Corrosion Allowance (CA) Bottom = Sh e l l = Roof =
1.52 3.05 1.48 3.05
ft ft ft ft
m3 m3
m m m m
0 i nc h 0 i nc h 0 i nc h
B. Plate Thickness Calculation B.1 Shell
PRODUCT STRESS
Courses 1 2 3
t min
H Liquid
in 0.0179 0.0160 0.0127
14.76 13.24 11.76
mm 0.46 0.41 0.32
t actual (mm) 6.31 6.31 6.2
mm 0.48 0.42 0.31
t actual (mm) 6.31 6.31 6.2
Remark OK OK OK
*tmin shall not be less tha 0,1 in (2,54mm)
HYDROSTATIC TEST
Courses 1 2 3
t min
H Liquid
in 0.01871 0.01664 0.01226
14.76 13.24 11.76
Remark OK OK OK
B.2 Roof t min
=
0.09 in
=
2.286 mm
*see 4.2.1.2
t actual = Remarks =
4.96 mm OK
(measurement result)
Tag No: 441-TA-066 Rev. No
0
Ref. Std
CALCULATON SHEET
Dated
: Dec, 2012
Fuel Diesel Storage Tank
Page
: 2 of 3
API Std. 650, 11th Edition, June 2007, Eff Date May 2010 API Std. 653, Fourth Edition, Addendum 1, August 2010
B.3 Bottom
t_actual = t_original = Umur = = Laju Korosi RT_bc = RT_in = Or = StPr = Upr =
6.02 mm
MRT
4.80 mm
7 4 0.25 6.02 6.02 5 0 0.25
=
(assumed) mm (since 2008) tahun mm/tahun mm mm years (NEXT INSPECTION SHOULD BE 2017) mm/tahun
(less than 0,1in)
OK
REMARKS
C. Wind Girder
t V H1
= = =
6.2 mm 190 mph 183.541 m
(> Tank Height, "not required")
D. Tank Overturning Stability D.1 Wind Pressure = = A vertical = A Hor. = WL_S = WL_UP = WP
0.86 1.44 14.4362 6.60185 12.4151 9.50666
kPa kPa m2 m2 kN kN
D.2 Unanchored Tanks BJ STEEL Shell Weight Cir. Length (m) Thi. (mm) Width (m) Course 1 6.31 1.52 9.106 2 6.31 1.52 3 6.2 1.48
Bottom Weight D_Bottom =
= t_bottom = Weight =
Cir. Length
Roof Plate & Structure = D_Roof
3.042 9.55188 6.02 451.393
m m mm kgs
3.042 m
Vertical Projected Area Horizontal Projected Area
(Total Horizontal Wind Load) (Total Vertical Wind Load)
=
7850 kg/m3 Weight Volume 0.0873375 685.599 0.0873375 685.599 0.0835567 655.92 Sum 2027.12 kgs
Tag No: 441-TA-066 Rev. No
0
PT. BKI (Persero)
Ref. Std
CALCULATON SHEET
Dated
: Dec, 2012
Fuel Diesel Storage Tank
Page
: 3 of 3
Tag No: 441-TA-066
API Std. 650, 11th Edition, June 2007, Eff Date May 2010 API Std. 653, Fourth Edition, Addendum 1, August 2010
= = =
Cir. Length
t_roof Weight
Rev. No
9.55188 m 4.96 mm 390.508 kgs
Structure / Appurtunance = 0.05 Ø Weight = 143.451 kgs
Total Self Weight of Tank SW = 3012.47 kgs Liquid Weight (wl) Volume Weight tb Fby wl
= = = = =
Internal Pressure Load Pi = Int. Force =
30 26100 6.02 23600 653.332
m3 kgs mm lbf/in2 lbf/ft
870 kg/m3
ρ fuel diesel
= = =
256041 0.23701 in 9534.66 N/m
N *Req: 14,8HD
18 kPa 118.833 kN
Criteria:
Mw Mpi MDL Mf
= = = =
41.7187 172.308 50.4462 13.8253
Criteria
Left Row
1 2
197.34 110.642
kN-m kN-m kN-m kN-m Right Row REMARKS 33.630779 FALSE *Need Anchor 32.135714 FALSE *Need Anchor
Bundwall Capacity Calculation Length Width Height Øringwall H_ringwall
24.6 27.13 0.42 4.36 0.45
m m m m m
Volume T1 T2 T3 T4
30 25.5 30 25.5
m3 m3 m3 m3 Total 111 m3 Volume Bundwall 253.45 Safety Factor 2.28
m3 OK
193.14 N/m
0
