Material Selection for IMO TYPE "C" TANK Unit : MPa
MATERIALWeld Metal(¿ëÁ¢ºÀ°­µµ)Allowable Membrane Stress(f) ¼±±ÞKR/LR
Tensile
Rm (=St)
Yield
Re (=Sy)
Div.1
S
f = Min(Re/A, Rm/1.5) f (Mpa) A
A1106(Hign Mn) 660400 N/A f = Min(660/3.5, 400/1.5) 188.6 3.5
A553-TYPE1 640420187.0f = Min(640/3.0, 420/1.5) 213.3 3.0
LT-FH32 440~570315 N/A f = Min(440/3.0, 315/1.5) 146.67
LT-FH36-TM 490~630355 N/A f = Min(490/3.0, 355/1.5) 163.33
SA240-304 515205138f = Min(515/3.5, 205/1.5) 136.66 3.5
SA240-304L 485170115f = Min(485/3.5, 170/1.5) 113.33
SA240-316 515205138f = Min(515/3.5, 205/1.5) 136.66
SA240-316L 485170115f = Min(485/3.5, 170/1.5) 113.33
SA516-60 410215118ASME SEC. VIII Div.1
Allowable Stress
SA516-70 485260138
SA537-CL1 485345138
SA537-CL2 550415158
/*  ³×À̹ö ºí·Î±× 
https://m.blog.naver.com/back511/70032286820
https://blog.naver.com/jicsmlove/222390087093

´ÙÀ½À¸·Î Èê¼ö ÀÔ´Ï´Ù.
*  ÇüÈê¼ö(T.mld) : Moulded Draft
¼±Ã¼°¡ ¼öÁß¿¡ Àá°ÜÀÖ´Â ºÎºÐÀ» ¸»Çϸç, ¿ë°ñÀÇ »ó¸é¿¡¼­ ºÎÅÍ ¼ö¸é±îÁöÀÇ  ¼öÁ÷°Å¸®¸¦ ÇüÈê¼ö(Moulded Draft)¶ó°í ÇÑ´Ù.
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	±× Èê¼ö¼±À» ¸¸ÀçÈê¼ö¼±(Load Line)À̶ó°í ÇÑ´Ù. ¸¸ÀçÈê¼ö¼±¿¡¼­ °ÇÇö°©ÆÇ
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// Design draft vs Scantling draft
// https://amarineblog.com/2017/08/12/design-draft-vs-scantling-draft/			
IMO TYPE C Fuel Tank [°ßÀû°­µµ°è»ê] ( 2021³â 10¿ù 15ÀÏ ¼öÁ¤ )           ( £í©÷¡¡£í©ø ¤§ £« £­ ¡¿ ¡À ¡¾ ¡Â ¡Ã ^C ¡É ¢º ¤º )
mode = view sid = 0,     tid=1
PJTNO : PJTNAME : OWNER: Units : °ßÀûÀÚ¸í : ³¯Â¥ :
[ ¸ñ ·Ï ]¡¡¡¡¡¡[ ¼ö Á¤ ]
No.o Ship Dimension and Data¡¡¡¡[¡ä¿À¹«¸®] [¡âÆîÄ¡±â]UnitS&SYSS&SYSSHI/12mSHI/9mSHI/SN2430/VLCCSN-XXXXSN-XXXXSN-XXXXSN-XXXXSN-010Unit
C* 1°í°´»ç (ȸ»ç¸í)Note 1. =S&SYSS&SYSSHISHISHIDSMEDSMEDSMEDSME
C* 2Ship NaumberNote 2. =SUMITOMOSUMITOMOSN2388 SN2345sSN2430
C* 3Ship DescriptionNote 3. =FGSSLFTAET FGSSCOTVLCCVLCC
C* 4Dead Weight (ÀçÇÏÁß·®)Note 4. =175000m3
C* 5Fuel Tank ¿ë·®Note 5. =900m32000m33750m319503754m34350m3
C* 6Tank Dia(m) x T.l~T.LNote 6. =D:7.8m D:7.9m D:12mD:9.0mD12 x 25.2mD12.5 x 27.2m
C* 7ÅÊÅ©¼ö·®Note 7. =11111
C* 8´ã´çÀÚ ¸íNote 8. =ÀÌÈ¿»ó ºÎÀåÀÌÈ¿»ó ºÎÀå
C* 9Note 9. =
C* 10Note 10. =
11, 0o Ship Dimension Data¡¡TNO = S&SYSS&SYSSHI/12mSHI/9mSHI/SN2430/VLCCSN-XXXXSN-XXXXSN-XXXXSN-XXXXSN-010
12, 1Length overall (˟ˌ)Loa =m100114.89114.89114.89114.89114.89114.89114.89114.89288.5m
13, 2Breadth moulded (ÇüÆø)B =m15.816.816.816.816.816.816.816.816.846.4m
14, 3Metacentric height (Unknown=0 ÀÔ·Â, ÀÚµ¿°è»ê)GM =m1.21541.29231.29231.29231.29231.29231.29231.29231.29233.5692m
15, 4Factor K=13*GM/B (Unknown K ¡Ã 1 ÀÔ·Â)K =1.01.01.01.01.01.01.01.01.01.0
16, 5Longitudinal distance (m) x =m9.59.59.59.59.59.59.59.59.575.25m
17, 6Transverse distance (m)y =mm
18, 7Vertical distance (m)z =m-0.677-0.677-0.677-0.677-0.677-0.677-0.677-0.677-0.677-0.677m
19, 8Block coefficientCB =0.7090.7090.7090.7090.7090.7090.7090.7090.7090.76
20, 9Service speedV =knote16161616161616161614knote
[21, 10]Acceleration due to ship's motions :Unit[#1][#2][#3][#4][#5][#6][#7][#8][#9][#10]Unit
22, 11Logitudinal Acceleration
Transverse Acceleration
Vertical Acceleration
Formula A
Formula ao
ax =
ay =
az =
A =
ao=
g
g
g

g
0.2545
0.7594
0.7061
0.4932
0.6000
0.2297
0.6937
0.6332
0.4864
0.5490
0.2297
0.6937
0.6332
0.4864
0.5490
0.2297
0.6937
0.6332
0.4864
0.5490
0.2297
0.6937
0.6332
0.4864
0.5490
0.2297
0.6937
0.6332
0.4864
0.5490
0.2297
0.6937
0.6332
0.4864
0.5490
0.2297
0.6937
0.6332
0.4864
0.5490
0.2297
0.6937
0.6332
0.4864
0.5490
856
0.3721
0.4604
0.3536
0.2755
g
g
g

g
23, 12X-Z Longitudinal Direction ¥â =
a¥â =
Z¥â =
Pgd_XZ=
deg
g
m
bar.g
26.0
1.4936
9.896
0.7245
24.0
1.4558
9.810
0.6441
20.0
1.5130
13.578
1.0071
24.0
1.4558
10.761
0.7679
20.0
1.5130
13.525
1.0031
24.0
1.4558
11.229
0.8014
23.0
1.4713
11.576
0.8349
23.0
1.4713
12.509
0.9022
22.0
1.4860
13.369
0.8570
6.0
1.4295
7.948
0.5570
deg
g
m
bar.g
24, 13Y-Z Transverse Direction¥â =
a¥â =
Z¥â =
Pgd_YZ=
deg
g
m
bar.g
6.0
1.5524
7.991
0.6081
9.0
1.3057
12.373
0.7286
6.0
1.4769
13.458
0.9743
7.0
1.4250
10.476
0.7318
6.0
1.4769
13.348
0.9664
8.0
1.3677
11.946
0.8009
8.0
1.3677
12.344
0.8276
7.0
1.4250
12.643
0.8831
7.0
1.4250
13.540
0.8323
2.0
1.3813
8.466
0.5732
deg
g
m
bar.g
25, 14Pgd : Internal liquid pressure ( IGC 4.28.1.2 )
Pgd = a¥â¡¤Z¥â¡¤( ¥ñ / 10-4 ) [bar.g]
Pgd(Max) =bar.g0.72450.72861.00710.76791.00310.80140.83490.90220.8570.5732bar.g
Ship Schematic Diagram :

x : ¼±¹ÚÀÇ Áß¾ÓÀ¸·ÎºÎÅÍ ÀûÀç¹°À» Æ÷ÇÔÇÑ ÅÊÅ©ÀÇ Áß½ÉÀ§Ä¡±îÁöÀÇ ¼±¹Ú ±æÀ̹æÇ⠰Ÿ®(m ), x´Â ¼±¹ÚÀÇ Áß¾ÓÀ¸·Î ºÎÅÍ ¼±¼ö¹æÇâÀ» Á¤(+), ¼±¹Ì¹æÇâÀ» ºÎ(-)·Î Ç¥½ÃÇÑ´Ù.
y : ¼±¹ÚÀÇ Á߽ɼ±À¸·ÎºÎÅÍ ÀûÀç¹°À» Æ÷ÇÔÇÑ ÅÊÅ©ÀÇ ¹«°ÔÁ߽ɱîÁö Ⱦ¹æÇ⠰Ÿ®(m).
z : ¼±¹ÚÀÇ ½ÇÁ¦ÀÇ È¦¼ö¼±À¸·ÎºÎÅÍ ÀûÀçÅÊÅ©Á߽ɱîÁöÀÇ ¼öÁ÷°Å¸®(m ), z´Â Ȧ¼ö¼±»óÀ¸·ÎºÎÅÍ »óÀ» Á¤(+), Çϸ¦ ºÎ(-)·Î Ç¥½ÃÇÑ´Ù.
Head Type (¼³¸í) : [H/H]= Hemi-Spherical,¡¡¡¡[E/E]=2:1 Ellipsodial,¡¡¡¡[10%D/D]= 10% Dish Head
[26, 16]o Fuel Tank Design DataUnit[#1][#2][#3][#4][#5][#6][#7][#8][#9][#10]Unit
27, 17Class Society ( KR, LR, ABS, DNV-GL, GV,(ASME VIII, Div.1)Class =FGSS/900m3S&SYS,2.0k LFTSHISHI/175000m3/COTSHI/VLCCKRKRKRKRDNV-GL
28, 18Fuel Type (LNG, LPG, AMMONIA, BUTANE)Liquid =LNGLNGSN2388 AET FGSSSN2345sSN2430LPGBUTANEAMMONIALPGLNG
29, 19Design temperature (-163 ~ +45 deg C)DTemp =deg C-163-163-163-163-163-45-5-35-45-163deg C
30, 21In-Diameter of TankD =m7.8007.90012.0009.00012.0009.50010.00011.00012.0009.200m
31, 22Design Liquid LevelDLL =m6.5006.77610.8507.50010.7407.9008.3009.10010.0007.600m
32, 23Length(T.L~T.L)L =m14.40036.00025.20024.60025.20029.29029.29029.29029.29024.800m
33, 24[USED] Shell ThicknesstuShell =mm22221518.02016.016.016.016.018mm
34, 25[USED] Head ThicknesstuHead =mm119.020.09.09.09.09.09.09.010mm
35, 26Corrosion AllowanceCA =mm1.001.01.00.750.7511111mm
36, 27Design DensitypDensitykg/m©ø500460500500500500500500440500kg/m©ø
37, 28Head Type , [HH, EE, H+E, EE, 10%DD]Head =HHHHHHHHHHHHHHHH146.67HH
38, 29Nominal Volume Vnom =m©ø936.562022.763754.831946.693754.832525.062824.033480.434217.42056.33m©ø
39, 30Net Volume,(Vnet = Vnom¡¿89.5%)Vnet =m©ø842.771854.843592.151746.973567.672260.242524.463104.183787.481831.58m©ø
40, 31Storage RatioSratio =%89.98691.69895.66789.74195.01589.51289.39289.1989.80689.07%
41, 32Tank materialMATL =A553-TYPE1A553-TYPE1A553-TYPE1A553-TYPE1A1106A1106A1106A1106SA240-316LA553-TYPE1
42, 34Yield stressRe =MPa420420420420390390390390170420MPa
43, 35Tensile strengthRm =MPa640640690690540540540540485690MPa
44, 36Allowable membrane stressf = MPa230213.3230230180180180180113.33230MPa
45, 38(For Bilobe) Tank center to Swash Bulk HeadC =m2.652.652.652.652.652.652.652.652.650m
[46, 40]o Design (Internal / External) Pressure Unit[#1][#2][#3][#4][#5][#6][#7][#8][#9][#10]Unit
47, 41Design vapour pressure, IMO*Po =bar4.04.54.54.54.54.54.54.54.57.0bar
48, 42Maximum Allowed ReliveValve Setting MARVS =bar3.23.23.23.23.23.23.23.23.27.0bar
49, 44Dynamic Pressure for ship mortionPgd=bar0.72450.72861.00710.76791.00310.80140.83490.90220.8570.5732bar
50, 45Design Pressure Peq = Po+Pgd(max)Peq =bar4.724505.228605.507105.267905.503105.301405.334905.402205.357007.57320bar
51, 46Test pressure Pt = Po x 1.5Pt =bar7.086807.842908.260707.901808.254607.952108.002408.103308.0355011.35980bar
52, 47Design External pressurePe =bar0.40.450.450.450.450.450.450.450.450.45bar
53, 48Vacuuum Ring Pitch [ÀÔ·Â]Pitch =m4.252.82.82.83.03.03.03.03.03.6m
54, 49Vacuuum Ring Q'ty [ÀÚµ¿°è»ê]qtyRing =Rings5555Rings
55, 50[¾ÆÁ÷] ¡¤Head Thk for External Pressure (Class)tcH_LR = mm22.022.015.018.020.016.016.016.016.018.0mm
56, 51[¾ÆÁ÷] ¡¤Head Thk for External Pressure (ASME) tcH_ASME = mm11.09.020.09.09.09.09.09.09.010.0mm
57, 52[¾ÆÁ÷] Check For External PressureCheck = OK NG!:OK NG!:OK NG!:OK NG!:OK NG!:OK NG!:OK NG!:OK NG!:OK NG!:OK NG!:
[58, 53]o BOR & Insulation DataUnit[#1][#2][#3][#4][#5][#6][#7][#8][#9][#10]Unit
59, 54BOR(POS)BOR =%/day0.350.30.30.30.30.30.30.30.30.3%/day
60, 55PUF (Insulation Thickness)tInsu =mm350400400400400400400400400400mm
61, 56PUF DensitypInsu =kg/m340404040404040404040kg/m3
62, 57Thermal Conductivityk =W/m¡¤K24242424242424242424W/m¡¤K
63, 58PUF (or Insulation) VolumeVinsu =m3203.6465.0587.8403.7588.5489.6520.8585.1651.9417.1m3
64, 5922
65, 6033
66, 6144
[ ¸ñ ·Ï ]¡¡¡¡¡¡[ ¼ö Á¤ ]
o Calculation Result
DescriptionSymbolUnit[#1][#2][#3][#4][#5][#6][#7][#8][#9][#10]Unit
AA°­µµ°è»ê °á°ú Á¶È¸[Àüü]
[Weight Summary]
[Strength Calculation]
[Dynamic Pressure]
[External Pressure]
[Àüü]
[WS]
[Stength]
[Dynamic]
[Vacuum]
[Àüü]
[WS]
[Stength]
[Dynamic]
[Vacuum]
[Àüü]
[WS]
[Stength]
[Dynamic]
[Vacuum]
[Àüü]
[WS]
[Stength]
[Dynamic]
[Vacuum]
[Àüü]
[WS]
[Stength]
[Dynamic]
[Vacuum]
[Àüü]
[WS]
[Stength]
[Dynamic]
[Vacuum]
[Àüü]
[WS]
[Stength]
[Dynamic]
[Vacuum]
[Àüü]
[WS]
[Stength]
[Dynamic]
[Vacuum]
[Àüü]
[WS]
[Stength]
[Dynamic]
[Vacuum]
[Àüü]
[WS]
[Stength]
[Dynamic]
[Vacuum]
o Calculation Result
DescriptionSymbolUnit[#1][#2][#3][#4][#5][#6][#7][#8][#9][#10]Unit
101At Operation
102ASME Div 1 :P = Po + PsMPa0.43190.48060.50320.48680.50270.48870.49070.49460.49310.7373MPa
103¡¡¡¤Shell Thk(ASME)¡¡¡¡ tdCyl = P¡¤R/( S¡¤E - 0.6P )+CAtdS__ASME =mm8.339.9114.1410.2917.5313.9214.6516.1427.1715.77mm
104¡¡¡¤Head Thk(ASME)¡¡¡¡tdHead = P¡¤R/(2¡¤S¡¤E - 0.2P)+CAtdH_ASME =mm4.665.457.565.519.137.457.828.5614.068.38mm
105LR Rules :P = PeqMPa0.472450.522860.550710.526790.550310.530140.533490.540220.53570.75732MPa
106¡¡¡¤Shell Thk(LR)¡¡¡¡ tdCyl = P¡¤R/( f¡¤E - 0.5P )+0.75tdS_LR =mm9.0210.6915.3811.0719.1215.0115.8417.5329.4316.17mm
107¡¡¡¤Head Thkk(LR),¡¡tdHead = P¡¤R/(2¡¤f¡¤E - 0.5P)+0.75tdH_LR =mm5.015.848.195.919.938.08.429.2615.28.58mm
108At Hydrostatic-Test
109ASME Div. 1 :¡¡¡¡¡¡¡¡Pt = 1.43Po + Pw(=FW+1500)Pt_ASME =MPa0.66320.73570.77590.74650.77590.75140.75630.76610.77591.1059MPa
110¡¡¡¤Shell Thk(ASME)¡¡ ttCyl = Pt¡¤R/( St¡¤E - 0.6Pt )+0ttS_ASME =mm6.857.712.338.913.2810.1810.7912.0230.5213.48mm
111¡¡¡¤Head Thk(ASME), ttHead = Pt¡¤R/(2¡¤St¡¤E - 0.2Pt)+0ttH_ASME =mm3.423.846.164.446.635.095.396.015.226.73mm
112LR Rules :¡¡¡¡¡¡¡¡¡¡Pt = 1.5Po + Pw(=FW+1500)Pt_LR =MPa0.79990.87650.95850.89310.95780.90310.9130.93290.93591.2409MPa
113¡¡¡¤Shell Thk(LR)¡¡¡¡ ttCyl = Pt¡¤R/( f¡¤E - 0.5Pt )+0ttS_LR =mm8.269.1715.2310.6416.412.2413.0214.6436.8115.13mm
114¡¡¡¤Head Thkk(LR),¡¡ttHead = Pt¡¤R/(2¡¤f¡¤E - 0.5Pt)+0ttH_LR =mm4.134.587.615.328.196.116.517.3118.387.56mm
115Cylinderical Shell Buckling Check
116¡¤1) External Pressure (Class) :tcS_LR =mm15.5014.0017.5014.5018.0016.0016.5017.0018.0016.50mm
117¡¡¡¤Vacuum Ring max. Pitch(mm)L =mm4250280028002800300030003000300030003600mm
118¡¡¡¤Design External PressurePe =bar.g0.40.450.450.450.450.450.450.450.450.45bar.g
119¡¡¡¤Allowable External PressurePcr =bar.g0.4420.5060.4910.4740.5110.5140.510.4760.490.48bar.g
120¡¡¡¤CheckPe < PcrOKOKOKOKOKOKOKOKOKOK
121¡¤2) External Pressure (ASME) :tcS_ASME =mm15.0013.0016.5014.0016.5015.0015.5016.0017.0016.00mm
122¡¡¡¤Factor A and TABLE GFactor A =1.89493E-42.35564E-42.82989E-42.59557E-42.71336E-42.55796E-42.63997E-42.65082E-42.79492E-42.30878E-4
123¡¡¡¤Factor B Factor B =MPa18.949323.556428.298925.955727.133625.579626.399726.508226.986923.0878MPa
124¡¡¡¤Allowable External Pressure(ASME)ASME_Pa =bar.g0.45180.47550.48600.50790.47350.50100.50880.48060.47840.5002bar.g
125¡¡¡¤Check Pe < ASME_PaCHECK = OKOKOKOKOKOKOKOKOKOK
126Capacity Calculation
127Vnom =m©ø936.562022.763754.831946.693754.832525.062824.033480.434217.402056.33m©ø
128Vsto =m©ø842.771854.843592.151746.973567.672260.242524.463104.183787.481831.58m©ø
129Vspace =m©ø93.790167.920162.680199.720187.160264.820299.570376.250429.920224.750m©ø
130SRatio =(%)10.0148.3024.33310.2594.98510.48810.60810.8110.19410.93(%)
131Weight Summary
132¡¡1) Shell WeightwShell =ton61.291155.154112.14598.670149.652110.164115.941127.497139.064101.679ton
133¡¡2) Head WeightwHead =ton16.59613.91871.49818.04432.06120.10722.26926.94632.06120.960ton
134¡¡3) Two Saddle Rinss(Inside)WsaddleRing =ton7.8007.90012.0009.00012.0009.50010.00011.00012.0009.200ton
135¡¡4) Vacuum Rings(Inside)WvacuumRing =ton7.8007.90012.0009.00012.0009.50010.00011.00012.0009.200ton
136¡¡5) Attachment Plate(Bulk Head)WbulkHead =ton3.9003.9506.0004.5006.0004.7505.0005.5006.0004.600ton
137¡¡6) Two Saddles(CS/Bottom)Wsaddle_CS =ton13.13413.47648.87918.56148.87921.43125.05934.75148.87919.636ton
138¡¡7) Accessory(CS/PlatForm)Waccy_CS =ton3.9003.9506.0004.5006.0004.7505.0005.5006.0004.600ton
139¡¡8) PUF ( Insulation )Winsu =Ton8.14418.60023.51216.14823.54019.58420.83223.40426.07616.684Ton
140Empty Steel Weight(1~7)Wempty =Ton122.565224.848292.034178.423290.132199.786214.101245.598282.080186.559Ton
141at Operating ConditionWoper =Ton543.9501078.0742088.1091051.9082073.9671329.9061476.3311797.6881948.5711102.349Ton
142at Hydrostatic-test ConditionWtest =Ton1059.1252247.6084046.8642125.1134044.9622724.8463038.1313726.0284499.4802242.889Ton
143Dynamic Pressure due to Ship mortion)PgdMax =bar.g0.72450.72861.00710.76791.00310.80140.83490.90220.8570.5732bar.g
150Surface Area Calculation for Net Weight
151Shell Plate Surface Area (OD ±âÁØ)suf_Shell = m2354.900898.400952.400698.300953.200877.100923.1001015.1001107.200719.600m2
152Head Plate Surface Area (OD ±âÁØ)suf_Head = m2192.200197.000455.400255.400453.800284.600315.200381.400453.800267.000m2
153Surface Area TotalSAream2547.1001095.4001407.800953.7001407.0001161.7001238.3001396.5001561.000986.600m2


query[0] = [Select sid,no,Descr,Symbol,Unit,A1,A2,A3,A4,A5,A6,A7,A8,A9,A10 FROM IMO_DATA Where sid='0' and no in (24, 25, 50, 51, 103, 106, 110, 113, 116, 121, 103, 103, 103, 104, 107, 111, 114, 120, 125) Order By no]
¹øÈ£0
sid
1
no
2
Descr
3
Symbol
4
Unit
5
A1
6
A2
7
A3
8
A4
9
A5
10
A6
11
A7
12
A8
13
A9
14
A10
1024[USED] Shell ThicknesstuShell =mm22221518.02016.016.016.016.018
2025[USED] Head ThicknesstuHead =mm119.020.09.09.09.09.09.09.010
3050[¾ÆÁ÷] ¡¤Head Thk for External Pressure (Class)tcH_LR = mm22.022.015.018.020.016.016.016.016.018.0
4051[¾ÆÁ÷] ¡¤Head Thk for External Pressure (ASME) tcH_ASME = mm11.09.020.09.09.09.09.09.09.010.0
50103¡¡¡¤Shell Thk(ASME)¡¡¡¡ tdCyl = P¡¤R/( S¡¤E - 0.6P )+CAtdS__ASME =mm8.339.9114.1410.2917.5313.9214.6516.1427.1715.77
60104¡¡¡¤Head Thk(ASME)¡¡¡¡tdHead = P¡¤R/(2¡¤S¡¤E - 0.2P)+CAtdH_ASME =mm4.665.457.565.519.137.457.828.5614.068.38
70106¡¡¡¤Shell Thk(LR)¡¡¡¡ tdCyl = P¡¤R/( f¡¤E - 0.5P )+0.75tdS_LR =mm9.0210.6915.3811.0719.1215.0115.8417.5329.4316.17
80107¡¡¡¤Head Thkk(LR),¡¡tdHead = P¡¤R/(2¡¤f¡¤E - 0.5P)+0.75tdH_LR =mm5.015.848.195.919.938.08.429.2615.28.58
90110¡¡¡¤Shell Thk(ASME)¡¡ ttCyl = Pt¡¤R/( St¡¤E - 0.6Pt )+0ttS_ASME =mm6.857.712.338.913.2810.1810.7912.0230.5213.48
100111¡¡¡¤Head Thk(ASME), ttHead = Pt¡¤R/(2¡¤St¡¤E - 0.2Pt)+0ttH_ASME =mm3.423.846.164.446.635.095.396.015.226.73
110113¡¡¡¤Shell Thk(LR)¡¡¡¡ ttCyl = Pt¡¤R/( f¡¤E - 0.5Pt )+0ttS_LR =mm8.269.1715.2310.6416.412.2413.0214.6436.8115.13
120114¡¡¡¤Head Thkk(LR),¡¡ttHead = Pt¡¤R/(2¡¤f¡¤E - 0.5Pt)+0ttH_LR =mm4.134.587.615.328.196.116.517.3118.387.56
130116¡¤1) External Pressure (Class) :tcS_LR =mm15.5014.0017.5014.5018.0016.0016.5017.0018.0016.50
140120¡¡¡¤CheckPe < Pcr OKOKOKOKOKOKOKOKOKOK
150121¡¤2) External Pressure (ASME) :tcS_ASME =mm15.0013.0016.5014.0016.5015.0015.5016.0017.0016.00
160125¡¡¡¤Check Pe < ASME_PaCHECK =  OKOKOKOKOKOKOKOKOKOK


QQQDescriptionSymbolUnitS&SYSS&SYSSHI/12mSHI/9mSHI/SN2430/VLCCSN-XXXXSN-XXXXSN-XXXXSN-XXXXSN-010
00106¡¡¡¤Shell Thk(Class)¡¡¡¡ tdS = P¡¤R/( f¡¤E - 0.5P )+0.75tdS_Class =mm9.0210.6915.3811.0719.1215.0115.8417.5329.4316.17
10113¡¡¡¤Shell Thk(Class)¡¡¡¡ ttS = Pt¡¤R/( f¡¤E - 0.5Pt )+0ttS_Class =mm8.269.1715.2310.6416.412.2413.0214.6436.8115.13
20116¡¤1) External Pressure (Class) :tcS_Class =mm15.5014.0017.5014.5018.0016.0016.5017.0018.0016.50
30103¡¡¡¤Shell Thk(ASME)¡¡¡¡ tdS = P¡¤R/( S¡¤E - 0.6P )+CAtdS__ASME =mm8.339.9114.1410.2917.5313.9214.6516.1427.1715.77
40110¡¡¡¤Shell Thk(ASME)¡¡ ttS = Pt¡¤R/( St¡¤E - 0.6Pt )+0ttS_ASME =mm6.857.712.338.913.2810.1810.7912.0230.5213.48
50121¡¤2) External Pressure (ASME) :tcS_ASME =mm15.0013.0016.5014.0016.5015.0015.5016.0017.0016.00
6024[USED] Shell ThicknesstuShell =mm22221518.02016.016.016.016.018
70120¡¡¡¤CheckPe < PcrOKOKOKOKOKOKOKOKOKOK
80107¡¡¡¤Head Thkk(Class),¡¡tdHead = P¡¤R/(2¡¤f¡¤E - 0.5P)+0.75tdH_Class =mm5.015.848.195.919.938.08.429.2615.28.58
90114¡¡¡¤Head Thkk(Class),¡¡ttHead = Pt¡¤R/(2¡¤f¡¤E - 0.5Pt)+0ttH_Class =mm4.134.587.615.328.196.116.517.3118.387.56
10050[¾ÆÁ÷] ¡¤Head Thk for External Pressure (Class)tcH_Class = mm22.022.015.018.020.016.016.016.016.018.0
110104¡¡¡¤Head Thk(ASME)¡¡¡¡tdHead = P¡¤R/(2¡¤S¡¤E - 0.2P)+CAtdH_ASME =mm4.665.457.565.519.137.457.828.5614.068.38
120111¡¡¡¤Head Thk(ASME), ttHead = Pt¡¤R/(2¡¤St¡¤E - 0.2Pt)+0ttH_ASME =mm3.423.846.164.446.635.095.396.015.226.73
13051[¾ÆÁ÷] ¡¤Head Thk for External Pressure (ASME) tcH_ASME = mm11.09.020.09.09.09.09.09.09.010.0
14025[USED] Head ThicknesstuHead =mm119.020.09.09.09.09.09.09.010
150125¡¡¡¤Check Pe < ASME_PaCHECK = OKOKOKOKOKOKOKOKOKOK


PartFormulaRequired
thickness
Forming
margin
Mill
minus
tolerance
Effective
thickness
Te =Tn-c1-c2
Nominal
thickness
Checck
SymboltReqdc1c2TeTntReqd < Tn
Tank ShellTshell = P¡¤R/( f¡¤E - 0.5P )+0.7516.760.5016.517.00OK
Hemi-HeadThead = P¡¤R/(2¡¤f¡¤E - 0.5P)+0.758.751.53mm
( 17 %)
08.9710.5OK
Dome ShellTdome = P¡¤R/( f¡¤E - 0.5P )+0.7516.760.5016.517.00OK
Dome (2:1) HeadTdhead = P¡¤R/(2¡¤f¡¤E - 0.5P)+0.758.751.53mm
( 17 %)
08.9710.5OK



Select tankNo, DATA From IMO_RESULT Where sid=0 and jNo < 12 and rNo=0 Order By jNo

[#1] Ship No. : S&SYS

(IGC 4.28.2.1) The following formulae are given as guidance for the components of acceleration
due to ship's motions corresponding to a probability level of 10-8 in the North Atlantic
and apply to ships with a length exceeding 50 m and at or near their service speed:
¥ñ = maximum liquefied gas fuel density (kg/m©ø) at the design temperature.
Design parameter of ship motion :
Lo = length of the ship for determination of scantlings as defined in
¡¡¡¡¡¡recognized standards (m); ¼±¹ÚÀÇ ÃÖ´ë ±æÀÌ
Lo =100.0 m
B = greatest moulded breadth of the ship (m); ¼±¹ÚÀÇ ÃÖ´ë Æø
B =15.8 m
x = longitudinal distance (m) from amidships to the centre of gravity of
¡¡¡¡¡¡the tank with contents; x is positive forward of amidships, negative
¡¡¡¡¡¡aft of amidships;
¼±¹ÚÀÇ Áß¾Ó ¿¡¼­ Tank ÀÇ Á߽ɱîÁö °Å¸®, ¼±¼ö¹æÇâÀ» Á¤(+), ¼±¹Ì¹æÇâÀ» ºÎ(-)
x =9.5 m
y = transverse distance (m) from centreline to the centre of gravity of
¡¡¡¡¡¡the tank with contents;
¼±¹ÚÀÇ È¾¹æÇâ Áß¾Ó¿¡¼­ Tank ÀÇ Á߽ɱîÁö ¶³¾îÁø °Å¸®
y =0.0 m
z = vertical distance (m) from the ship's actual waterline to the centre
¡¡¡¡¡¡of gravity of tank with contents; z is positive above and negative
¡¡¡¡¡¡below the waterline;
¼±¹ÚÀÇ Èê¼ö¼±¿¡¼­ Tank ÀÇ Á߽ɱîÁö ³ôÀÌ, Ȧ¼ö¼±»óÀ¸·ÎºÎÅÍ »óÀ» Á¤(+), Çϸ¦ ºÎ(-)
z =-0.677 m
CB = block coefficient; [help]CB =0.709
K = 1 in general. For particular loading conditions and hull forms,
¡¡¡¡¡¡determination of K according to the following formula may be necessary;
¡¡¡¡¡¡K = 13*GM/B, where K ¡Ã 1 and GM = metacentric height, GM = 1.2154 (m);
K =1.0
A =0.493
V = service speed (knots); V =16.0 knots
Acceleration due to ship's motions :
¡¡
¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡
az =0.7061 g¡¡ ¡¡ ¡¡ 
ay =0.7594 g
ax =0.2545 g
a0 =0.6000 g

1. Design Data
DescriptionSymbolCylinderBI-LOBEUnit
Tank Dia.D =7800mm
Design Liquiod levelDLL =6500mm
Radius of tankR =3900mm
Tank center to Swash Bulk Head (For Bilobe) C =02650mm
Dimension x, (Tank T.L to T.L)x =14400mm
Dimension yy =2906.9mm
Dimension z, z = DLL - Rz =2600mm
Tank Total LengthL=2R+x22200mm
2. Internal liquid pressure calculation [ as per IGC CODE]
Design Internal pressure ( Design Data )Po = 4.0bar.g
MARVS ( Design Data )MARVS = 3.2bar.g
Internal liquid pressure ( Calculated IGC CODE )
¡¡¡¡ Pgd(max) = Max(Pgd_x, Pgd_y)
Pgd(max) =0.7245bar.g
Total Design Pressure : Peq = Po + (Pgd)maxPeq =4.7245bar.g
DescriptionSymbolY-Z planeX-Z planeUnit
¡¡Pgd : Internal liquid pressure ( IGC 4.28.1.2 )
¡¡¡¡¡¡¡¡Pgd = a¥â ¡¤ Z¥â ¡¤ ( ¥ñ / 10-4 ) [bar.g]
Pgd = 0.72450.6081bar.g
¡¡ ¥ñ : Design Density of LNG¥ñ =500500kg/m©ø
¡¡a¥â : dimensionless acceleration, resulting from gravitational
¡¡¡¡¡¡¡¡¡¡and dynamic loads in an arbitrary direction ¥â
a¥â =1.49361.5524g
¡¡Z¥â : largest liquid height (m) above the point where the pressure is to be determined
¡¡¡¡¡¡¡¡¡¡measured from the Tank shell in the ¥â direction
Z¥â =9.8967.991m
¡¡¥â : angles of resulting acceleration vector in relative to the vertical plane ¥â =266deg.
¡¡¥âmax : maximum angle (Full Loading Condition) ¥âmax =47.00219.769deg.
¡¡¥â = ¥âmax(FWD) : Maximum angle (Collision Crash Stop), ax = 0.5g
¡¡¥â = ¥âmax(AFD) : Maximum angle (Collision Crash Stop), ax = -0.25g
¥âmax =26.565
14.036
deg.
deg.

3.1 Dynamic Pressure Calculation Result (Max. Accelation and Max. Pgd(Max)
Sloshing Load Calculation
(Full loading)
Collision Crash Stop(FWD)
ax = 0.5g
Collision Crash Stop(AFD)
ax =£­0.25g
Transverse
(y-z plane)
Longitudinal
(x-z plane)
Longitudinal
(x-z plane)
Longitudinal
(x-z plane)
¥â
deg
a¥âZ¥â
(m)
Pgd
(bar.g)
¥â
deg
a¥âZ¥â
(m)
Pgd
(bar.g)
¥â
deg
a¥âZ¥â
(m)
Pgd
(bar.g)
¥â
deg
a¥âZ¥â
(m)
Pgd
(bar.g)
261.49369.89570.724561.55247.99100.608126.5651.118012.66540.694114.0361.03089.91480.5010
3.2 Dynamic Pressure Calculation by Each Angle
Sloshing Load Calculation
(Full loading)
Collision Crash Stop(FWD)
ax = 0.5g
Collision Crash Stop(AFD)
ax =£­0.25g
(Ãø¸é) Transverse
(y-z plane)
(±æÀÌ) Longitudinal
(x-z plane)
(±æÀÌ) Longitudinal
(x-z plane)
(±æÀÌ) Longitudinal
(x-z plane)
¥â
deg
a¥âZ¥â
(m)
Pgd
(bar.g)
¥â
deg
a¥âZ¥â
(m)
Pgd
(bar.g)
¥â
deg
a¥âZ¥â
(m)
Pgd
(bar.g)
¥â
deg
a¥âZ¥â
(m)
Pgd
(bar.g)
01.70616.5000.543601.70616.5000.543601.00006.5000.318601.00006.5000.3186
11.70586.6430.555511.70156.7510.563111.00026.7510.331011.00026.7510.3310
21.70506.7850.567121.68807.0010.579321.00067.0010.343421.00067.0010.3434
31.70366.9260.578431.66577.2500.592031.00147.2500.355931.00147.2500.3559
41.70167.0660.589441.63527.4980.601041.00247.4980.368441.00247.4980.3684
51.69907.2050.600151.59727.7450.606451.00387.7450.381151.00387.7450.3811
61.69597.3440.610561.55247.9910.608161.00557.9910.393961.00557.9910.3939
71.69227.4810.620571.50188.2360.606371.00758.2360.406771.00758.2360.4067
81.68797.6170.630281.44628.4790.601181.00988.4790.419781.00988.4790.4197
91.68307.7520.639591.38658.7210.592791.01258.7210.432891.01258.7210.4328
101.67767.8860.6485101.32358.9610.5814101.01548.9610.4460101.01548.9610.4460
111.67158.0180.6570111.25799.2000.5673111.01879.2000.4594111.01879.2000.4594
121.66498.1500.6651121.19049.4370.5507121.02239.4370.4729121.02239.4370.4729
131.65768.2800.6727131.12159.6730.5318131.02639.6730.4866131.02639.6730.4866
141.64948.4130.6802141.04909.9150.5098141.03089.9150.501014.0361.03089.9150.5010
151.64128.5360.6867150.980610.1380.4873151.035310.1380.5145
161.63218.6610.6930160.908310.3680.4617161.040310.3680.5287
171.62238.7860.6987170.833910.5960.4332171.045710.5960.5432
181.61198.9090.7039180.755110.8230.4006181.051510.8230.5578
191.60089.0300.708619.7690.664911.0460.3600191.057611.0460.5727
201.58909.1500.7127 201.064211.2680.5878
211.57659.2680.7163 211.071111.4880.6032
221.56339.3850.7192 221.078511.7050.6188
231.54949.5000.7215 231.086411.9200.6348
241.53489.6130.7233 241.094612.1320.6510
251.51939.7250.7243 251.103412.3420.6676
261.49369.8960.7245 26.5651.118012.6650.6941
271.48619.9420.7243
281.468210.0490.7232
291.449410.1530.7213
301.429810.2550.7188
311.409110.3560.7153
321.387510.4540.7110
331.364810.5500.7058
341.340910.6450.6997
351.315910.7370.6926
361.289510.8270.6844
371.261810.9160.6752
381.232411.0020.6646
391.201411.0850.6528
401.168311.1670.6395
411.132811.2460.6245
421.094611.3240.6076
431.052711.3990.5882
441.006011.4710.5657
450.952011.5420.5386
460.884211.6100.5032
47.0020.740811.6750.4240
GET_H_VOLUME ( Vnom, HH, 12.500, 22.230, 10.850 ) = 3750.68529 / 3488.84198] m3
GET_H_VOLUME ( Vnom, EE, 12.500, 22.230, 10.850 ) = 3239.35836 / 3001.89107] m3
GET_H_VOLUME ( Vnom, DD, 12.500, 22.230, 10.850 ) = 396.33973 / 377.4454] m3

GET_H_VOLUME ( Vnom, HE, 12.500, 22.230, 10.850 ) = 3495.02183 / 3245.36653] m3
GET_H_VOLUME ( Vnom, HD, 12.500, 22.230, 10.850 ) = 3437.52823 / 3190.61376] m3
GET_H_VOLUME ( Vnom, ED, 12.500, 22.230, 10.850 ) = 3181.86476 / 2947.1383] m3
GET_H_VOLUME ( Vnom, SPH, 12.500, 22.230, 10.850 )= 1022.65386 / 973.90184] m3





DLL = 10.41, HH Vnom = 3750.68529 m3, Vsto = 3374.23778 m3, Sratio = 89.96323 % ) DLL = 10.41 m
DLL = 10.47, EE Vnom = 3239.35836 m3, Vsto = 2915.41221 m3, Sratio = 89.99968 % ) DLL = 10.47 m
DLL = 10.44, HE Vnom = 3495.02183 m3, Vsto = 3145.35868 m3, Sratio = 89.99539 % ) DLL = 10.44 m
DLL = 10.44, HD Vnom = 3437.52823 m3, Vsto = 3092.03483 m3, Sratio = 89.94937 % ) DLL = 10.44 m
DLL = 10.47, ED Vnom = 3181.86476 m3, Vsto = 2861.97507 m3, Sratio = 89.94647 % ) DLL = 10.47 m
DLL = 10.05, SPH Vnom = 1022.65386 m3, Vsto = 920.19526 m3, Sratio = 89.98111 % ) DLL = 10.05 m





Return value
DNV-GL RULES ¡¡¡¡PcrAry[0] = 2.4 * Et * ( t / R ) / SF_DNV_GL * 10 = 2.4 * 206000.0 * ( 10.0 / 6286.0 )©÷ / 3.0 * 10¡¡= 0.41707 bar.g [DNV-GL Å©·Î¾ÆƼ¾Æ ³í¹® )] > Pe (0.45 ) bar.g OK

o Hemi-Spherical Head Check Subject to External Pressure ( GL 2000 RULES, Âü°í : ds36_126.pdf)
LH2_°³³ä¼³°è_ÄÚ¸Þ¸®°ßÀû.xlsm - ÄÚ¸Þ¸®_°­µµ°è»ê_7670 Sheet Âü°í GL 2000 RULES RULES ¡¡ ¡¡PcrAry[1] = 3.66 * (Et / Sk) * (tc / Ro)©÷ = 3.66 * (206000.0 / 4.2572) * (10.0 / 6286.0)©÷ ¡¡= 0.4482 bar.g > Pe (0.45 ) bar.g OK

ASME Div. 1 ASME¡¡¡¡ Factor_A = 19.885E-5
ASME Div. 1 ASME¡¡¡¡¡¡¡¡¡¡Factor_B = 19.88546 MPa
ASME Div. 1 RULES ¡¡PcrAry[0] = Factor_B / ( Ro/tc ) = 19.88546 / ( 6286.0 / 10.0 ) * 10 = 0.31635 bar.g [°ËÁõ¿Ï·á] > Pe (0.45 ) bar.g OK
ASME Div. 1 RULES ¡¡PcrAry[1] = 0.0625 * Et / ( Ro/tc)©÷= 0.0625 206000.0 * ( 6286.0 / 10.0 )©÷ * 10 = 0.32584 bar.g [°ËÁõ¿Ï·á] > Pe (0.45 ) bar.g OK

o LH2_°³³ä¼³°è_ÄÚ¸Þ¸®°ßÀû.xlsm - DSME_°­µµ°è»ê_12500Sheet Âü°í
2.4.2 Hemi-Spherical Head ( °ËÁõ¾ÈµÊ - DNV-GL Å©·Î¾ÆƼ¾Æ ³í¹® )




	
	var Di  = 2210;
	var Ri  = Di / 2;
	var DLL = 1853;

	var z = 552.5 ; 
	var C = 2 * 552.5 / 2210;
	C	= 0.5;
      
    var V_one_head = Math.pow(Di,3) * C * ( Math.PI / 12) * ( 3 * Math.pow((DLL / Di ),2) - 2 * Math.pow((DLL/Di),3));
	var V_Cylinder = L * ( Ri^2 * Math.acos((Ri-DLL)/Ri) - (Ri - DLL) * Math.sqrt(Di * DLL - Math.pow(DLL,2)));

	var V = V_one_head + V_Cylinder;

	https://stackoverflow.com/questions/2172798/how-to-draw-an-oval-in-html5-canvas	
	There doesnt seem to be a native function to draw an oval-like shape. Also i am not looking for the egg-shape.
	Is it possible to draw an oval with 2 bezier curves? Somebody expierenced with that?
	My purpose is to draw some eyes and actually im just using arcs. Thanks in advance. Solution
	So scale() changes the scaling for all next shapes. Save() saves the settings before and restore is used to restore the settings to draw new shapes without scaling.
	Thanks to Jani
	
	ctx.save();
	ctx.scale(0.75, 1);
	ctx.beginPath();
	ctx.arc(20, 21, 10, 0, Math.PI*2, false);
	ctx.stroke();
	ctx.closePath();
	ctx.restore();

½ÃÀ۽ð£ = [2025-04-04 12:20:58.0896]
Á¾·á½Ã°£ = [2025-04-04 12:20:58.0961]


Ãâó : ASME SHELL THICKNESS CALCULATION Ãâó

 
Wall thickness calculation of Sphere
according ASME
 
     
  Allowable stress S = 175.2 = 175.20 N/mm©÷  
  Corroded thickness tc = t - Ca - tol = 8.2 - 1 - 1.03 = 6.17 mm  
           
  Sphere:        
           
  Corroded inside radius
R =
Do
2
- tc=
219.1
2
- 6.17 =
103.38 mm  
1.Cylinder Shell : £«£­¡¿¡À
Required wall thickness
tr=
P · R
S¡¿E £­ 0.6¡¿P
£« CA
=
0.5 ¡¿ 103.38
2 ¡¿ 175.2 ¡¿ 1.0 £­ 0.2 ¡¿ 0.5
£« CA
0.15 mm 
2.Spherical Head :
Required wall thickness
tr=
P · R
2SE £­ 0.2P
£« CA
=
0.5 ¡¿ 103.38
2 ¡¿ 175.2 ¡¿ 1.0 £­ 0.2 ¡¿ 0.5
£« CA
0.15 mm 
3.2:1 Ellipsoidal Head :
Required wall thickness
tr=
P ⋅ D
2 ⋅ S ⋅ E - 0.2 ⋅ P
+ CA
=
0.5 * 103.38
2 * 175.2 * 1.0 - 0.2 * 0.5
+ CA
0.15 mm 
3.10% Dish Head :
Required wall thickness
tr=
P ⋅ D ⋅ K
2 * S * E - 0.2 * P
+ CA
=
0.5 * 103.38
2 * 175.2 * 1.0 - 0.2 * 0.5
+ CA
0.15 mm 
  Nominal required thickness trn = tr + Ca + tol = 0.148 + 1 + 1.03 = 2.18 mm  
  Max. Allowable Working Press.
MAWP =
2 ⋅S ⋅ E ⋅ tc
R + 0.2 ⋅ tc
=
2 ⋅ 175.2 ⋅ 1 ⋅ 6.17
103.38 + 0.2 ⋅ 6.17
=
20.67 N/mm©÷  
  Thickness analysis, t > trn ? t = 8.2 mm is OK      
           
  Weight     9.00 kg  
  Enclosed volume     0.004 m3  
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