[SKS] IMO TYPE C TANK DATA LIST

[ Data Input ]

Class Society	Liquid / Design Density kg/ｍ³	Material	Head Type	Design Internal Pressure Po, MARVS(bar.g)	Design External Pressure Pe (bar.g)	Corrosion Allowance CA (mm)	BOR Limit (%/day)	Insulation Thk. tInsu (mm)	Vacuum Ring Pitch VRPM(mm)	Allowable Stress f=Min(Rm/A, Re/B)	Calc
	kg/ｍ³	f = Min(640/3.0, 400/1.5) f = 213.3 MPa								f = Min(640/3.0, 400/1.5) f = 213.3	SAVE

imoStdList.jsp?iMode=0classid=2&contentid=0&pDensity=500.0&matid=1&hdTypeid=0&Po_bar=4.0&Pe_bar=0.45&CA=0.75&BOR=0.35&tInsu=400.0&VRPmm=3500.0

IMO TYPE C - STANDARD SIZE and Volume Table

Head Type ; Spherical-Head

Material Selection for IMO TYPE C TANK (재질을 선택하세요,) Unit : MPa 1. Hign Mn (A1106-17) Base Metal Rm = 800 MPa, Re ≥ 400 MPa 2. 9% Nickel(A553-TYP1) Base Metal Rm = 690~825 MPa , Re ≥ 585 MPa
MATERIAL	Weld Metal(용접봉강도)			Allowable Membrane Stress(f) (by IGC, IGF)
MATERIAL	Tensile Re (=St)	Yield Rm (=Sy)	Div.1 S	f = Min(Rm/A, Re/B)	f (Mpa)	A	B
A1106(Hign Mn)	660	400	N/A	f = Min(660/3.5, 400/1.5)	188.6	3.5	1.5
A553-TYPE1	640	400	187.0	f = Min(640/3.0, 400/1.5)	213.3	3.0	1.5
LT-FH32(TM)	440~570	315	N/A	f = Min(440/3.0, 315/1.5)	146.67
LT-FH36(TM)	490~630	355	N/A	f = Min(490/3.0, 355/1.5)	163.33
SA240-304	515	205	138	f = Min(515/3.5, 205/1.5)	136.66	3.5	1.5
SA240-304L	485	170	115	f = Min(485/3.5, 170/1.5)	113.33
SA240-316	515	205	138	f = Min(515/3.5, 205/1.5)	136.66
SA240-316L	485	170	115	f = Min(485/3.5, 170/1.5)	113.33
NV 4-4L	490~610	325	N/A	f = Min(490/3.0, 325/1.5)	163.33	3.0	1.5
[Allowable Stress 계산 식 참고하기]

Design Data :

Class Society

Liquid

Material

Head Type

Design Pressure
Po, MARVS(bar.g)

Design External
Pressure MAEP(bar.g)

Corrosion
Allowance
CA (mm)

BOR Limit
(%/day)

Insulation Thk.
tInsu (mm)

Vacuum Ring
Pitch (mm)

Weld Metal
Tensile Stress
Rm (MPa)

Weld Metal
Yield Stress
Re (MPa)

Allowable Stress
f=Min(Rm/A, Re/B)
f = Min(640/3.0, 400/1.5)

REMARK

DNV-GL(노르웨이)

LNG

A553-TYPE1

[HH] Hemi-Spherical Head

4.0

0.45

0.75

0.35

400

3500

640

400

213.3

No.	Description	Symbol	This Tank TK-001	TNO-2	TNO-3	TNO-4	TNO-5	TNO-6	TNO-7	TNO-8	TNO-9	TNO-10	TNO-11	TNO-12	TNO-13	TNO-14	TNO-15	TNO-16	TNO-17	TNO-18	Unit
1	TANK In-Diameter	Di =	10500	12000	12500	12500	7500	8000	8000	8250	8500	9000	10000	3000	11000	11250	12000	12500	12000	12500	mm
2	Hemi-Spherical Depth	*z = 0.5D**	5250	6000	6250	6250	3750	4000	4000	4125	4250	4500	5000	1500	5500	5625	6000	6250	6000	6250	mm
3	Cylinder Straight Length (TL to TL : 10mm 단위올림)	TL =	17260	18530	20190	22230	18770	19540	24510	27240	29580	22300	16260	4720	24240	27720	25160	22230	27370	24270	mm
4	Total Length ( Head End to End ), L = 2*z +TL	L =	27760	30530	32690	34730	26270	27540	32510	35490	38080	31300	26260	7720	35240	38970	37160	34730	39370	36770	mm
5	Design Liquid Level	DLL =	9333	10661	11109	11118	6687	7132	7141	7368	7593	8024	8888	2665	9799	10030	10686	11118	10693	11125	mm
6
7	Gross Volume, Vnom = Vcyl+Vhead	Vnom =	2100	3000	3500	3750	1050	1250	1500	1750	2000	1800	1800	47.5	3000	3500	3750	3750	4000	4000	m³
8	Net Volume ( Vnet = 0.98*Vnom)	Vnet =	1988.5	2840.7	3314.2	3550.9	994.2	1183.6	1420.4	1657.1	1893.8	1704.4	1704.4	45.0	2840.7	3314.2	3550.9	3550.9	3787.6	3787.6	0.98*Vnom
9	Vhead = πD³ / 6	Vhead =	606.1	904.8	1022.7	1022.7	220.9	268.1	268.1	294.0	321.6	381.7	523.6	14.1	696.9	745.5	904.8	1022.7	904.8	1022.7	m³
10	Vcyl = πD² / 4 * L	Vcyl =	1493.9	2095.2	2477.3	2727.3	829.1	981.9	1231.9	1456.0	1678.4	1418.3	1276.4	33.4	2303.1	2754.5	2845.2	2727.3	3095.2	2977.3	m³
11	Storage Ratio = Vnet / Vnom * 100	Sratio =	94.69	94.69	94.69	94.69	94.69	94.69	94.69	94.69	94.69	94.69	94.69	94.69	94.69	94.69	94.69	94.69	94.69	94.69	%
12	Static Head Pressure, Ps = ρgh(h=DLL)	Ps =	0.0458	0.0523	0.0545	0.0545	0.0328	0.035	0.035	0.0361	0.0372	0.0393	0.0436	0.0131	0.048	0.0492	0.0524	0.0545	0.0524	0.0545	MPa
13	[ASME] Total Design Pressure, P = Po+Ps	P_ASME =	0.4458	0.4523	0.4545	0.4545	0.4328	0.435	0.435	0.4361	0.4372	0.4393	0.4436	0.4131	0.448	0.4492	0.4524	0.4545	0.4524	0.4545	MPa
14	[ASME] Cylinder Shell Thickness	t_Cyl =	11.73	13.49	14.08	14.08	8.37	8.92	8.92	9.19	9.47	10.03	11.16	3.66	12.31	12.61	13.49	14.08	13.49	14.08	mm
15	[ASME] Hemi-Spherical Head Thickness	t_HHead =	6.24	7.11	7.41	7.41	4.56	4.83	4.83	4.97	5.11	5.38	5.95	2.2	6.53	6.67	7.11	7.41	7.11	7.41	mm
16	[ASME] Cylinder Shell Thk (Vacuum Ring Pitch: 3.5m )	t_CylPe =	16.5	17.5	18.0	18.0	14.0	14.5	14.5	14.5	15.0	15.0	16.0	8.5	17.0	17.0	17.5	18.0	17.5	18.0	mm
17	[ASME] Allowable External Pressure(Shell), Pe < Pa_Cyl	Pa_Cyl =	0.0493	0.0476	0.0483	0.0483	0.051	0.0507	0.0507	0.0481	0.0503	0.0473	0.0486	0.0513	0.05	0.0485	0.0476	0.0483	0.0476	0.0483	MPa
18	[ASME] Allowable External Pressure(Head ), Pe < Pa_Head	Pa_Head =	0.0688	0.0689	0.0689	0.0689	0.0688	0.0688	0.0688	0.0689	0.0689	0.0689	0.0688	0.1378	0.0688	0.0689	0.0689	0.0689	0.0689	0.0689	MPa
19	[Class] Dynamic Pressure(Ship Motion)	Pgd(max) =	0.1258	0.1323	0.1345	0.1345	0.1328	0.135	0.135	0.1361	0.1372	0.1393	0.1236	0.1331	0.128	0.1292	0.1324	0.1345	0.1324	0.1345	MPa
20	[Class] Total Design Pressure, P = Po+Pgd(max)	P_Class =	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.4	MPa
21	[Class] Cylinder Shell Thickness	t_Cyl =	10.61	12.01	12.48	12.48	7.79	8.26	8.26	8.49	8.73	9.2	10.14	3.57	11.08	11.31	12.01	12.48	12.01	12.48	mm
22	[Class] Hemi-Spherical Head Thickness	t_HHead =	5.67	6.38	6.61	6.61	4.27	4.5	4.5	4.62	4.74	4.97	5.44	2.16	5.91	6.03	6.38	6.61	6.38	6.61	mm
23	[LR] Cylinder Shell Thk (Vacuum Ring: 3.5m )	t_CylPe =	17.5	19.0	19.5	19.5	14.5	15.0	15.0	15.5	15.5	16.0	17.0	9.0	18.0	18.5	19.0	19.5	19.0	19.5	mm
24	[DNV-GL] Hemi-Spherical Head Thk (For Vacuum ) Pc=2.4Et(t-c/Ro)²/ 3.7 [DNV-GL Pt4-Ch7]	t_HeadPe =	6.7	7.55	7.83	7.83	5.0	5.28	5.28	5.42	5.56	5.85	6.41	2.45	6.98	7.12	7.55	7.83	7.55	7.83	mm
25	[LR] Allowable External Pressure (Shell DNV-GL, LR, GV)	Pcr =	0.0476	0.0482	0.0493	0.0493	0.049	0.0478	0.0478	0.0498	0.0474	0.0476	0.0479	0.0546	0.0486	0.0504	0.0482	0.0493	0.0482	0.0493	MPa
26	[NK] Allowable External Pressure (ClassNk equal ASME Div2. )	Pa_div2 =	0.0369	0.0396	0.044	0.044	0.0244	0.0287	0.0287	0.0275	0.0297	0.0306	0.0359	0.0281	0.0377	0.0365	0.0396	0.044	0.0396	0.044	MPa
27	PUF Insulation Volume	Vinsu =	387.16	483.72	538.38	571.54	265.7	296.0	348.6	391.42	431.8	375.76	349.75	34.95	512.35	578.3	587.29	571.54	621.81	604.69	m³
28	Min. Thickness for Internal Pressure 　tMinPo(DNV-GL) = 3+Di/1500+CA	tMinPo =	10.75	11.75	12.08	12.08	8.75	9.08	9.08	9.25	9.42	9.75	10.42	5.75	11.08	11.25	11.75	12.08	11.75	12.08	mm
29	Min. Thickness for Internal Pressure, (IGC_LR_ASME)	tMinBase =	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0	5.0	mm
30	Min. Thickness for External Pressure, tMinPe = Do/850 ASME SECTION II, PART D - SUBPART 3 (METRIC), FIG. G	tMinPe =	13.1	14.87	15.46	15.46	9.57	10.16	10.16	10.46	10.75	11.34	12.51	4.28	13.69	13.99	14.87	15.46	14.87	15.46	mm
31
32	[Calc] Shell Thickness	tCyl =	13.10	14.87	15.46	15.46	9.57	10.16	10.16	10.46	10.75	11.34	12.51	5.75	13.69	13.99	14.87	15.46	14.87	15.46	mm
33	[Calc] Head Thickness	tHead =	13.10	14.87	15.46	15.46	9.57	10.16	10.16	10.46	10.75	11.34	12.51	5.75	13.69	13.99	14.87	15.46	14.87	15.46	mm
34	Nominal Shell Thickness (벤딩마진포함)	tu_Cyl =	14.00	15.50	16.50	16.50	10.00	11.00	11.00	11.00	11.50	12.00	13.50	6.50	14.50	14.50	15.50	16.50	15.50	16.50	mm
35	Nominal Head Thickness (성형마진포함)	tu_Head =	14.00	15.50	16.50	16.50	10.50	11.00	11.00	11.50	11.50	12.00	13.50	6.50	14.50	15.00	15.50	16.50	15.50	16.50	mm
36	Shell Thickness Margin, tMarginCyl = tuCyl - tCyl	tMarginCyl =	0.90	0.63	1.04	1.04	0.43	0.84	0.84	0.54	0.75	0.66	0.99	0.75	0.81	0.51	0.63	1.04	0.63	1.04	mm
37	Head Thickness Margin, tMarginHead = tuHead - tHead	tMarginHead =	0.9	0.63	1.04	1.04	0.93	0.84	0.84	1.04	0.75	0.66	0.99	0.75	0.81	1.01	0.63	1.04	0.63	1.04	mm
38
39
40	Shell Segment 수량	sQty =	6.0	6.0	6.0	7.0	6.0	6.0	8.0	9.0	9.0	7.0	5.0	2.0	8.0	9.0	8.0	7.0	9.0	8.0	sheets
41	Shell Segment Width	sWidth =	2893.33	3105.0	3381.67	3190.0	3145.0	3273.33	3076.25	3037.78	3297.78	3200.0	3272.0	2410.0	3042.5	3091.11	3157.5	3190.0	3052.22	3046.25	mm
42	Shell Cutting Plan Length, @SegmentWidth * sQty=	cpLength =	@2893.33x6 EA = 17360	@3105.0x6 EA = 18630	@3381.67x6 EA = 20290	@3190.0x7 EA = 22330	@3145.0x6 EA = 18870	@3273.33x6 EA = 19640	@3076.25x8 EA = 24610	@3037.78x9 EA = 27340	@3297.78x9 EA = 29680	@3200.0x7 EA = 22400	@3272.0x5 EA = 16360	@2410.0x2 EA = 4820	@3042.5x8 EA = 24340	@3091.11x9 EA = 27820	@3157.5x8 EA = 25260	@3190.0x7 EA = 22330	@3052.22x9 EA = 27470	@3046.25x8 EA = 24370	mm
43	Actual inertia moment of Saddle Ring	Ig_Saddle =	1323539.0	1557359.0	1856632.0	1856632.0	355610.0	371130.0	371130.0	576306.0	586944.0	599883.0	993588.0	89321.0	1348187.0	1505975.0	1557359.0	1856632.0	1557359.0	1856632.0	cm⁴
44	Saddle Ring (Qty) Saddle Ring (Size)	SRqty = SIZE =	2 S/Rings T1300x32+430x32	2 S/Rings T1350x32+450x32	2 S/Rings T1400x34+470x34	2 S/Rings T1400x34+470x34	2 S/Rings T900x25+350x25	2 S/Rings T900x25+350x25	2 S/Rings T900x25+350x25	2 S/Rings T1000x30+400x30	2 S/Rings T1000x30+400x30	2 S/Rings T1000x30+400x30	2 S/Rings T1200x30+400x30	2 S/Rings T600x22+300x22	2 S/Rings T1300x32+430x32	2 S/Rings T1350x32+450x32	2 S/Rings T1350x32+450x32	2 S/Rings T1400x34+470x34	2 S/Rings T1350x32+450x32	2 S/Rings T1400x34+470x34	Rings
45	Vacuum Ring (Qty) Vacuum Ring (Size)	VRqty = SIZE =	6 V/Rings T350x15+200x15	7 V/Rings T350x15+200x15	7 V/Rings T400x20+250x15	8 V/Rings T400x20+250x15	7 V/Rings T300x15+100x15	7 V/Rings T300x15+100x15	9 V/Rings T300x15+100x15	9 V/Rings T300x15+100x15	10 V/Rings T300x15+100x15	8 V/Rings T300x15+100x15	6 V/Rings T300x15+100x15	2 V/Rings FB150x20	8 V/Rings T350x15+200x15	10 V/Rings T350x15+200x15	9 V/Rings T350x15+200x15	8 V/Rings T400x20+250x15	9 V/Rings T350x15+200x15	8 V/Rings T400x20+250x15	Rings
46	Vacuum Ring @pitch	VR_pitch =	@3050×5 +2×1005	@2760×6 +2×985	@3030×6 +2×1005	@2890×7 +2×1000	@2800×6 +2×985	@2920×6 +2×1010	@2810×8 +2×1015	@3160×8 +2×980	@3060×9 +2×1020	@2900×7 +2×1000	@2850×5 +2×1005	@2720×1 +2×1000	@3180×7 +2×990	@2860×9 +2×990	@2900×8 +2×980	@2890×7 +2×1000	@3170×8 +2×1005	@3180×7 +2×1005	mm
47	Required inertia moment of Stiff. Ring 　Ix = 0.18 * D * Pe_MPa * L * Ds² / E ×10E-5	Ix =	16449.8	24565.7	27776.2	27776.2	5981.6	7264.8	7264.8	7967.1	8716.4	10349.5	14207.5	380.3	18916.5	20234.6	24565.7	27776.2	24565.7	27776.2	cm⁴
48	Actual inertia moment of Vacuum Ring	Ig =	30047.3	32698.4	53599.6	53599.6	12279.8	13135.3	13135.3	13209.4	13626.3	14105.3	15342.0	1021.4	30953.0	31081.6	32698.4	53599.6	32698.4	53599.6	cm⁴
49	Ix / Ig < 1.0 OK		0.5	0.8	0.5	0.5	0.5	0.6	0.6	0.6	0.6	0.7	0.9	0.4	0.6	0.7	0.8	0.5	0.8	0.5
50	Weight Summary
51	1) Shell Weight	wShell =	68.59	92.069	110.517	120.662	38.57	47.361	58.01	65.847	76.604	64.845	60.271	3.947	101.854	118.162	122.607	120.662	132.607	130.867	ton
52	2) Head Weight	wHead =	38.065	55.044	63.58	63.58	14.566	17.362	17.362	19.303	20.491	23.971	33.293	1.443	43.269	46.819	55.044	63.58	55.044	63.58	ton
53	3) Saddle Rins(Inside)	WsaddleRing =	32.702	40.101	45.805	45.805	13.768	15.156	15.156	19.913	20.643	21.99	27.505	3.389	34.443	36.474	40.101	45.805	40.101	45.805	ton
54	4) Vacuum Rings(Inside)	WvacuumRing =	13.024	17.903	25.176	28.596	7.25	7.894	10.092	11.04	12.495	10.654	9.302	0.69	17.74	22.682	22.52	28.596	22.52	28.596	ton
55	5) Swash Bulk Head and Attachment	WbulkHead =	23.077	28.735	30.798	30.798	13.704	15.516	15.516	16.123	16.869	18.285	21.459	4.373	24.762	25.541	28.735	30.798	28.735	30.798	ton
56	6) Saddle(CS/Bottom)	Wsaddle_CS =	29.574	48.879	57.18	57.18	12.109	13.883	13.883	14.954	16.025	18.561	25.059	1.482	34.751	37.749	48.879	57.18	48.879	57.18	ton
57	7) Accessory(CS/PlatForm)	Waccy_CS =																			ton
58	8) PUF ( Insulation ) Winsu = Vinsu * Density [ 40 kg/m³]	Winsu =	15.486	19.349	21.535	22.862	10.628	11.84	13.944	15.657	17.272	15.03	13.99	1.398	20.494	23.132	23.492	22.862	24.872	24.188	Ton
59	Empty Steel Weight(1~7)	Wempty =	220.518	302.08	354.591	369.483	110.595	129.012	143.963	162.837	180.399	173.336	190.879	16.722	277.313	310.559	341.378	369.483	352.758	381.014	Ton
60	at Operating Condition	Woper =	994.25	1420.35	1657.1	1775.45	497.1	591.8	710.2	828.55	946.9	852.2	852.2	22.5	1420.35	1657.1	1775.45	1775.45	1893.8	1893.8	Ton
61	at Hydrostatic-test Condition	Wtest =	2100.0	3000.0	3500.0	3750.0	1050.0	1250.0	1500.0	1750.0	2000.0	1800.0	1800.0	47.5	3000.0	3500.0	3750.0	3750.0	4000.0	4000.0	Ton
62	Dynamic Pressure due to Ship mortion)	PgdMax =																			bar.g
63	Surface Area Calculation for Net Weight
64	Shell Plate Surface Area (OD 기준)	suf_Shell =																			m2
65	Head Plate Surface Area (OD 기준)	suf_Head =																			m2
66
67
68
69	Surface Area Total	SArea																			m2
Weight Summary			[조 회]	[조 회]	[조 회]	[조 회]	[조 회]	[조 회]	[조 회]	[조 회]	[조 회]	[조 회]	[조 회]	[조 회]	[조 회]	[조 회]	[조 회]	[조 회]	[조 회]	[조 회]	Unit

AAA wSummary[k][0] = [
[Table 1] Shell and Head Thickness Calculation
0　Head Type : [HH] Hemi-Spherical Head
　Vessel Size : 10500(D) × 17260(L) × 27760(TL) mm
　Where, z = R = 0.5×D = 5250 mm,　　C = 2z/D = 1.0
o (내압에 의한 필요두께의 계산)
　Design Code : DNV-GL(노르웨이)
　Material of Shell and Head : SA516-60
　Allowable Stress, f = 213.3 MPa, Rm = 640.0, Re = 400.0, EM = 200,000 MPa
　Weld Joint Effciency, E = 1.0
　Design Internal Pressure, Po = 0.4 MPa
　Dynamic Pressure Subject to ship motion, Pgd(max) = 0.0 MPa
　Total Pressure, P = Po + Pgd(max) = 0.4 MPa
For 10% Dish Head M = 1/4 * [3 + SQRT(L/r)] = 1.54057, L=1.0D=10500, r=0.1*D=1050,
　Min. Shell Plate Thickness　　, Rule-1) tMin(Pe) = Do/850 = 13.1 (mm)
　Min. Shell and Head Thickness, Rule-2) tMin(DNV-GL) = 3 + Di/1500 + CA = 10.75 (mm)
　Min. Shell and Head Thickness, Rule-3) tMin(IGC, IGF) = 5 mm
　Min. Ellipsoidal and 10% Dish Head Thickness, Rule-4) tMin(ASME UG-32) ≥ 0.002*R+CA = 11.25 (mm)
　Dertermine Min. Thickness, tMin = Max( Rule1, Rule2, Rule3) = 13.1 (mm)

MATERIAL	Weld Metal(용접봉강도), [MPa]			Allowable Membrane Stress(f) (by IGC, IGF)
MATERIAL	Tensile Re (=St)	Yield Rm (=Sy)	Div.3 S	f = Min(Rm/A, Re/B)	f [MPa]	A	B
SA516-60	640	400	N/A	f = Min(640/3.5, 400/1.5)	213.3	3.5	1.5

1. [DNV-GL(노르웨이)] Strength of Shell and Head Plates Subjected to Internal Pressure

No.

ITEM

DNV-GL(노르웨이) Formula

Requird Thick
t (mm)

Used Thick
Tu (mm)

Cylindrical Shell

S ≥

Pc ·D₀

20 · σt · v ＋ Pc

＋ c,　(PT4Ch7 3.2.1)

10.59

0.90

2.51

14.00

Hemi-Head

S ≥

Pc ·D₀

40 · σt · v ＋ Pc

＋ c,　(PT4Ch7 3.3.1)

5.67

0.90

7.43

14.00

Where,
Inside Diameter (Shell, Head)	D =	10500	mm	10.500	m
Inside Radius (Shell, Head )	R =	5250	mm	5.250	m
Min. Tensile Stress (Weld Metal)	Rm =	640	MPa
Min. Yield Stress (Weld Metal)	Re =	400	MPa
Allowbale Membrane Stress, f = Min(440/3.0, 315/1.5) ASME 자재 사용불가! 허용응력(f) 확인필요!!	f =	213.3	MPa	SA516-60
Design Pressure, P = Po + Pgd(max)	P =	0.4	MPa	4.0	bar.g
Corrosion Allowance	CA =	0.75	mm
Thickness margin of Bending or Forming	c1 =	Avobe Table
Thickness margin : c2 = Tu - (t + c1)	c2 =	Avobe Table

2. [DNV-GL(노르웨이)] Strength of Shell and Head Plates Subjected to Hydrostatic-test condition at shop

No.

ITEM

DNV-GL(노르웨이) Formula

Requird Thick
t (mm)

Used Thick
Tu (mm)

Cylindrical Shell

S ≥

Pc ·D₀

20 · σt · v ＋ Pc

＋ c,　(PT4Ch7 3.2.1)

8.76

0.90

2.51

14.00

Hemi-Head

S ≥

Pc ·D₀

40 · σt · v ＋ Pc

＋ c,　(PT4Ch7 3.3.1)

4.38

0.90

7.43

14.00

　Thickness margin of Bending or Forming

c1 =

Avobe Table

　Thickness margin : c2 = Tu - (t + c1)

c2 =

Avobe Table

Where,
Inside Diameter (Shell, Head)	D =	10500	mm	10.500	m
Inside Radius (Shell, Head )	R =	5250	mm	5.250	m
Min. Tensile Stress (Weld Metal)	Rm =	640	MPa
Min. Yield Stress (Weld Metal)	Re =	400	MPa
Allowbale Stress at Hydrostatic-Test, f = 0.9 * Rm	f =	360	MPa
Hydrostatic-test Pressure, P = Poper * 1.5	P =	0.6	MPa	6.0	bar.g
Corrosion Allowance	CA =	0.00	mm

Shape factor For (2:1) Ellipsoidal Head(H/Do=0.25) and (10%)Dish head(H/Do=0.2)

1) DNV-Rules

2) LR-Rules

3) BV-Rules

5 편 기관장치 / 5 장 보일러 및 압력용기
309. 동판 및 경판
1. 동판 및 경판의 두께는 표 5.5.15의 식에 의한 소요두께 이상이어야 하며, 지름, 압력, 온도, 재료 등을 고려하여 우리 선급이 특별히 승인한 경우를 제외하고 5 mm 이상이어야 한다. 다만, 모든 반구형 경판을 제외한 곡면경판의두께는 그 경판이 부착된 동판이 이음매 없는 경우일 때의 그 동판의 소요두께 이상이어야 한다.

2. 보강을 필요로 하는 구멍이 있는 경우의 경판의 소요두께는 다음 각호에 따른다.
(1) 구멍의 보강을 115.의 2항에 의한 경우에는 표 5.5.15에 따른다.
(2) 맨홀 또는 최대치수가 150 mm 를 넘는 구멍으로서 그 주위를 115.의 6항에 규정하는 플랜지형으로 보강하였을경우에는 다음에 따른다.

(가) 접시형 또는 반구형 경판 : 표 5.5.15에 따라서 산정된 값에 그의 15% (3 mm 미만의 경우에는 3 mm) 이상의 값을 더한 두께 이상으로 하여야 한다. 이 경우에 경판의 중앙부에 있어서의 안쪽반지름이 동체의 안지름의80% 미만인 경우에는 경판의 중앙부에 있어서의 안쪽반지름을 동체의 안지름의 80% 로 하여 계산하여야 한다. 또한, 두 개의 맨홀이 있는 경판의 두께를 이와같이 정하였을 경우에는 두 개의 맨홀사이의 거리가 경판 바깥지름의 1/4 이상이어야 한다.
(나) 반타원형 경판 : 표 5.5.15에 따라서 계산하되 이 경우의 R 은 동체의 안지름의 80% 로 하고, E는 1.77 로 한다.

(비고)
(1) 접시형 경판의 중앙부에 있어서의 안쪽반지름은 경판의 플랜지 부분의 바깥지름보다 커서는 아니 된다. 또한, 경판의 모서리에 있어서의 안쪽반지름은 경판의 플랜지 부분의 바깥지름의 6 % 또는 경판 두께의 3 배 중 큰 것 이상이어야 한다.
(2) 반타원형 경판의 안쪽에서의 짧은 반지름은 긴 반지름의 1/2 이상이어야 한다.
(3) 부식 예비두께는 소요두께의 1/6 또는 1 mm 중 작은 것으로 한다. 다만 부식성 액체 또는 가스를 저장하는 압력용기는 부식 예비두께를 증가시킬 수 있으며 부식성이 없는 액체 또는 가스를 저장하는 압력용기 또는 내식성 재료를 사용하는 압력용기는 부식 예비두께를 감소시킬 수 있다. (2021)

3. 볼록면에 압력을 받는 경판의 소요두께는 오목면에 압력을 받는 경우의 경판 소요두께 산정식에서 설계압력의 P 대신에 p 의 1.67 배의 값을 적용하여 산정한 두께 이상이어야 한다.

3. IMO TYPE C Tank / Class Formula 비교표

1. Cylindrical Shell Plate

at Operation
t (mm)

at Test
(mm)

c1 (mm)

c2 (mm)

Tu (mm)

SKETCH
ASME SEC.VIII Div.1

KR (한국선급)

T =

P D₁

2 f J － 1.2 P

＋ c

10.856

8.76

0.9

2.24

14.00

LR (영국선급)

T =

P · R_j

10 · σ · J － 0.5 · P

＋ 0.75

10.605

8.74

0.9

2.5

14.00

DNV-GL(노르웨이)

S ≥

Pc ·D₀

20 · σt · v ＋ Pc

＋ c,　(PT4Ch7 3.2.1)

10.586

8.76

0.9

2.51

14.00

Class-Nk(일본선급)

Tr =

P R

f J － 0.5 P

＋ α

10.605

8.76

0.9

2.5

14.00

BV (프랑스)

T =

p · D

(2·K － p)·e

＋ 0.75

10.605

8.76

0.9

2.5

14.00

ABS (미국선급)

T =

W · R

f·S·E － (1－y) · W

＋ C

10.605

8.76

0.9

2.5

14.00

ASME SEC.VIII-Div.1(압력용기)

t =

P · R

S·E － 0.6·P

＋ CA

10.606

8.76

0.9

2.49

14.00

ASME SEC.VIII-Div.2(압력용기)

t =

· [exp(P / SE) － 1] ＋ CA

10.605

8.76

0.9

2.5

14.00

2. [HH] Hemi-Spherical Head

at Operation
t (mm)

at Test
(mm)

c1 (mm)

c2 (mm)

Tu (mm)

SKETCH
ASME SEC.VIII Div.1

KR (한국선급)

T =

P R₂

2 f J － 0.2 P

＋ c

5.924

4.38

0.9

7.18

14.00

LR (영국선급)

T =

P · R_j

20 · σ · J － 0.5 · P

＋ 0.75

5.675

4.37

0.9

7.43

14.00

DNV-GL(노르웨이)

S ≥

Pc ·D₀

40 · σt · v ＋ Pc

＋ c,　(PT4Ch7 3.3.1)

5.670

4.38

0.9

7.43

14.00

Class-Nk(일본선급)

Tr =

P R

2 f J － 0.5 P

＋ α

5.675

4.38

0.9

7.43

14.00

BV (프랑스)

T =

p · R

(2·K － p)·e

＋ 0.75

5.677

4.38

0.9

7.42

14.00

ABS (미국선급)

T =

W · R

2·f·S·E － (1－y) · W

＋ C

5.675

4.38

0.9

7.43

14.00

ASME SEC.VIII-Div.1(압력용기)

t =

P · R

2·S·E － 0.2·P

＋ CA

5.674

4.38

0.9

7.43

14.00

ASME SEC.VIII-Div.2(압력용기)

t =

· [exp(0.5P/SE) － 1] ＋ CA

5.675

4.38

0.9

7.43

14.00

3. [EE] 2:1 Ellipsoidal Head

at Operation
t (mm)

at Test
(mm)

c1 (mm)

c2 (mm)

Tu (mm)

SKETCH
ASME SEC.VIII Div.1

KR (한국선급)

T = [

P D₂

2 f J － 0.2 P

＋ c ] × 1.15

12.474

10.06

0.9

0.63

14.00

UG-32 FORMED HEADS, AND SECTIONS, PRESSURE ON CONCAVE SIDE
(c) Ellipsoidal Heads With ts/L ≥ 0.002
(d) Torispherical Heads With t s /L ≥ 0.002.
위 수식을 사용하기 위한 필수 조건임

( 2:1 Ellipsoidal head and Dish Head 필수조건 임 )
ts / L ≥ 0.002
tsMin = 0.002 * L + CA = 21.75 mm

LR (영국선급)

T =

P · D₀ ·K

20 · σ · J

＋ 0.75,　K=1.4

14.533

12.03

0.9

0.07

15.50

DNV-GL(노르웨이)

S ≥

Pc ·D₀ · β

20 · σt · v

＋ c,　β=1.375

14.287

12.03

0.71

15.00

Class-Nk(일본선급)

Tr =

P R

f J － 0.25 P

＋ α

10.600

8.75

0.9

2.5

14.00

BV (프랑스)

T =

p · D ·C

2 ·K · e

＋ 0.75,　C=1.65

16.995

14.44

0.9

0.11

18.00

ABS (미국선급)

T =

W · R ·K

2·f·S·E － 0.2·W

＋ C,　K=1

10.597

8.75

0.9

2.5

14.00

ASME SEC.VIII-Div.1(압력용기)

t =

P · D ·K

2·S·E － 0.2·P

＋ CA,　K=1.0

10.597

8.75

0.9

2.5

14.00

ASME SEC.VIII-Div.2(압력용기)

t =

P · D ·K

2·S·E － 0.2·P

＋ CA,　K=1.0

10.597

8.75

0.9

2.5

14.00

4. [DD] 10% Dish Head

at Operation
t (mm)

at Test
(mm)

c1 (mm)

c2 (mm)

Tu (mm)

SKETCH
ASME SEC.VIII Div.1

KR (한국선급)

T = [

P R₂E

2 f J － 0.2 P

＋ c ] × 1.15,　E=1.5406

21.194

17.81

0.81

22.00

LR (영국선급)

T =

P · D₀ ·K

20 · σ · J

＋ 0.75,　K=2.35

23.886

20.13

0.61

24.50

DNV-GL(노르웨이)

S ≥

Pc ·D₀ · β

20 · σt · v

＋ c,　β=2.30

23.394

20.13

0.61

24.00

Class-Nk(일본선급)

Tr =

P R₁ W

2 f J － 0.5 P

＋ α

15.925

13.49

0.9

0.18

17.00

BV (프랑스)

T =

p · D ·C

2 ·K · e

＋ 0.75,　C=2.30

23.394

20.13

0.61

24.00

ABS (미국선급)

T =

W · R ·M

2·f·S·E － 0.2·W

＋ C,　M=1.5406

15.920

13.48

0.9

0.18

17.00

ASME SEC.VIII-Div.1(압력용기)

t =

P · L ·M

2·S·E － 0.2·P

＋ CA,　L=1.0·D, M=1.5406

15.920

13.48

0.9

0.18

17.00

ASME SEC.VIII-Div.2(압력용기)

t =

P · L ·M

2·S·E － 0.2·P

＋ CA,　L=1.0·D, M=1.5406

15.920

13.48

0.9

0.18

17.00

Where,
Inside Diameter (Shell, Head)	D =	10500	mm	10.500	m
Inside Radius (Shell, Head )	R =	5250	mm	5.250	m
Min. Tensile Stress (Weld Metal)	Rm =	640	MPa
Min. Yield Stress (Weld Metal)	Re =	400	MPa
Allowbale Membrane Stress, f = Min(440/3.0, 315/1.5)	f =	213.3	MPa
at Ship Operation Condition
Design Pressure, P = Po + Pgd(max)	P =	0.4	MPa	4.0	bar.g
Allowbale Membrane Stress, f = Min(440/3.0, 315/1.5)	f =	213.3	MPa
Corrosion Allowance	CA =	0.75	mm
at Hydrostatic-Test Condition
Hydrostatic-test Pressure, P = Poper * 1.5	P =	0.6	MPa	6	bar.g
Allowbale Stress, f = 0.9 * Rm	f =	360	MPa
Corrosion Allowance	CA =	0.00	mm

[TNO-1] Tank Size : ø10500 x 17260 (L = 27760 mm ) Weight Summary

1. Tank Capacity : 2100 ｍ³ 　Head Type ; [HH] Spherical-Head		Tank Size : ø10500 x 17260 (L = 27760 mm )						Plate 발주폭(Max) : 3400 mm Head Plate Surface Area(표면적) : 346.361 m²		Head Type ; [HH] Spherical-Head
No.	Name	MATERIAL	SIZE t x W X L (mm)			Quantity (SHT)	Weight (kg)	표면적 ｍ²/ pcs	Remark	SKETCH
1	Shell Plate (Center Part 일반부)	A553-TYPE1	14.00	2,893	11,013	12	42,018	31.86061	길이분할: @2893.33×6 shts = 17360 > 17260 mm
2	Shell Plate (Saddle Support Part)	A553-TYPE1	16.00	2,893	11,013	6	24,010	31.86061	원주분할: L=π×ø10516 = 33037mm / 3분할= 11013mm
3	Shell Plate (Dome Reinforcement)	A553-TYPE1	16.00	3,400	6,000	1	2,562	20.40000	Dome Part
4	[HH] Hemi-Head Plate (Side)	A553-TYPE1	14.00	2,753	4,082	24	26,202	238.41890	Angle = (#4WP: 43.5º, CP : 44.493º) [deg]
5	[HH] Hemi-Head Plate (Center 1)	A553-TYPE1	14.00	2,844	8,533	2	3,954	107.94169	Angle = (#4WP: 43.5º + 46.5º : #5WP,CP) = 90º [deg]
6	[HH] Hemi-Head Plate (Center 2)	A553-TYPE1	14.00	2,844	8,533	4	7,909	24.26785	(Head Plate 표면적)Surface Area : 346.361 m²
7	Wear Plate and 지지금구(Fix / Sliding)	A553-TYPE1	16.00	1,200	16,569	2	4,995	19.88280	For Saddle Support
8	SWASH Bulk Head ( Baffle Plate - Hole 중량 포함 )	A553-TYPE1	10.00	6,686	10,200	2	10,707	68.19720	Baffle Plate Net Surface Area = 58.70131 ｍ²(Hole 면적포함)
9	Bulk Head (Baffle Stiffener Plate)	A553-TYPE1	15.00	1,200	16,564	2	4,681	19.87680	10
10	Bulk Head (U-BAND Spring : 충격완화금구)	A553-TYPE1	25.00	400	660	52	2,694	0.26400
11	Vacuum Ring (Web) T350x15+200x15	A553-TYPE1	15.00	335	0	5	6,298	10.69800	A = π× (OD 10500²- ID : 9830²) / 4 = 10.698 m²
12	Vacuum Ring (Flange) T350x15+200x15	A553-TYPE1	15.00	200	31,934	5	3,760	6.38680	L = π × (ø10165 ) = 31934 mm
13	Vacuum Ring (Rib Plate)	A553-TYPE1	32.00	199	1,236	48	2,966	0.24596
14	Saddle Ring (Web) T1300x32+430x32	A553-TYPE1	32.00	1,268	0	2	18,476	36.77600	A = π× (OD 10500²- ID : 7964²) / 4 = 36.776 m²
15	Saddle Ring (Flange) T1300x32+430x32	A553-TYPE1	32.00	430	29,003	2	6,266	12.47129	L = π × (ø9232 ) = 29003 mm
16	Saddle Ring (Rib Plate)	A553-TYPE1	32.00	199	1,236	48	2,966	0.24596
17	Saddle Support (Base Plate)	DH32 OR A516-60	51.00	1,090	12,300	2	10,735	13.40700	Base Plate : t51 mm
18	Saddle Support (Rib & Etc)	DH32 OR A516-60	44.00	3,048	8,948	2	18,839	27.27198	Rib Plate Thick. J=44.0 (mm) , tg=44.0 (mm)
[ONLY] Shell and head Plate Quentity						49 sht
Total Weight							200,038	kg

Vacuuring Ring (Stiffener) Size : T350x15+200x15　
Tank OD (Da) = 10528 mm, Shell Plate: t14 x W:421.7mm W=1.1*SQRT(D*t)
( IxReqd = 16449.8 < 30047.3 = IxActual ) OK

No.	b	d	A=b*d	y	A*y	h = y-C1	Ah²	Ig=b*d³/12	SKETCH
No.	cm	cm	cm²	cm	cm³	(cm)	cm⁴	cm⁴
3	20.0	1.5	30.0	35.65	1069.5	21.13	13390.5	5.63
2	1.5	33.5	50.25	18.15	912.04	3.63	661.05	4699.42
Shell	42.17	1.4	59.04	0.7	41.33	-13.82	11281.09	9.64
	SUM	∑ =	139.29		2022.87		25332.64	4714.69

C1	= ∑(AY) / ∑(A) (무게중심 위치)	C1 =	14.523	cm	무게중심에서 FLANGE 하단 까지 떨어진 거리
C2	= H - C1	C2 =	21.877	cm	무게중심에서 FLANGE 상단 까지 떨어진 거리
∑(A)	= Sum of Section Area (단면적)	∑(A)=	139.29	cm²	단면적 (빗금전체)
Ix	= ∑(Ah²) + ∑(Ig)	Ix =	30047.33	cm⁴	X축 단면2차모멘트 (Moment of inertia)
Zx	= Ix / Max(C1, C2)	Zx =	1373.47	cm³	X축 단면계수 (Section Modulus)
Zmax	= Ix / Min(C1, C2)	Zmax =	2068.95	cm³	X축 (최대) 단면계수
Rx	= SQRT( Ix / A )	Rx =	14.69	cm	X축 회전반경
Ry	= SQRT( Iy / A )	Ry =	8.37	cm	Y축 회전반경
Section Area(Shell 포함)		Sarea =	139.29	cm²	Section Area(Shell 포함)
Ring 단면적 (Shell 제외)		ARing =	80.25	cm²	Ring 단면적 (Shell 제외)
Ring 원주길이		Leng =	6.24	m	Ring 길이(m) = 3.141592×(Di-C1)
Ring 단위중량 (kg/m),		WTm =	63	kg/m	단위중량(kg/m)
Ring Weight, Shell(1) 제외 중량		WT =	392.9	kg	Ring 1 PCS 중량(kg)

Saddle Ring Size : T1300x32+430x32　
Tank OD (Da) = 10528 mm, Shell Plate: t14 x W:421.7mm W=1.1*SQRT(D*t)
( IxReqd = 16449.8 < 1323538.8 = IxSadAct ) OK

No.	b	d	A=b*d	y	A*y	h = y-C1	Ah²	Ig=b*d³/12	SKETCH
No.	cm	cm	cm²	cm	cm³	(cm)	cm⁴	cm⁴
3	43.0	3.2	137.6	129.8	17860.48	56.44	438243.51	117.42
2	3.2	126.8	405.76	64.8	26293.25	-8.56	29766.24	543658.89
Shell	42.17	1.4	59.04	0.7	41.33	-72.66	311743.14	9.64
	SUM	∑ =	602.4		44195.06		779752.89	543785.95

C1	= ∑(AY) / ∑(A) (무게중심 위치)	C1 =	73.365	cm	무게중심에서 FLANGE 하단 까지 떨어진 거리
C2	= H - C1	C2 =	58.035	cm	무게중심에서 FLANGE 상단 까지 떨어진 거리
∑(A)	= Sum of Section Area (단면적)	∑(A)=	602.40	cm²	단면적 (빗금전체)
Ix	= ∑(Ah²) + ∑(Ig)	Ix =	1,323,539	cm⁴	X축 단면2차모멘트 (Moment of inertia)
Zx	= Ix / Max(C1, C2)	Zx =	18040.47	cm³	X축 단면계수 (Section Modulus)
Zmax	= Ix / Min(C1, C2)	Zmax =	22805.87	cm³	X축 (최대) 단면계수
Rx	= SQRT( Ix / A )	Rx =	46.87	cm	X축 회전반경
Ry	= SQRT( Iy / A )	Ry =	7.09	cm	Y축 회전반경
Section Area(Shell 포함)		Sarea =	602.4	cm²	Section Area(Shell 포함)
Ring 단면적 (Shell 제외)		ARing =	543.36	cm²	Ring 단면적 (Shell 제외)
Ring 원주길이		Leng =	6.05	m	Ring 길이(m) = 3.141592×(Di-C1)
Ring 단위중량 (kg/m),		WTm =	426.54	kg/m	단위중량(kg/m)
Ring Weight, Shell(1) 제외 중량		WT =	2581.7	kg	Ring 1 PCS 중량(kg)

매크로포함_SHI_SN2430_D12m_견적강도계산 (견적원가).xlsm - [PV4th SADDLES] Sheet 참고

Pressure Vessel Design Manulal (4th edition) / Table 4-27 Large diameter saddle supports

Vessel DIA.		BASE PLATE LENGTH	SADDLE HEIGHT	Bolt Hole Dia.	INNER RIB PITCH	BASE PLATE Width	BOLT PITCH	Saddle BTM Width	Saddle Top Width	Wear Plate Width	Rib Plate 두께	RIB 수량	BOLT 수량	Base Plate 두께	Gusset Plate 두께	Wear Plate 두께	Approx wt for 2 Saddles (kg)	Saddle RIB Height(Center)
DIA(ft)	DIA(mm)	A	B	D	E	F	G	GB=F-50.8	GT	H	J	N	n	tb	tg	tw	wt	h=B-D/2
14	4267	3937	2337	35	483	457	229	406	711	864	19	8	8	25	19	19	3175	203.2
15	4572	4343	2540	35	533	457	229	406	711	864	19	8	8	25	19	19	3629	254
16	4877	4648	2743	35	457	457	235	406	711	864	25	10	8	29	22	22	4536	304.8
17	5182	4902	2896	41	483	533	273	483	787	940	25	10	8	32	25	25	4990	304.8
18	5486	5258	3099	41	432	533	279	483	787	940	29	12	12	35	29	25	5443	355.6
20	6096	5258	3353	41	432	533	279	483	787	940	29	12	12	35	29	29	7031	304.8
22	6706	5563	3658	48	457	610	318	559	864	1016	32	12	12	38	32	32	8618	304.8
24	7315	6121	3962	48	432	610	318	559	864	1016	32	14	12	38	32	32	9979	304.8
26	7925	6477	4369	48	457	610	318	559	864	1016	35	14	12	41	32	32	11793	406.4
28	8534	6985	4674	54	432	686	356	635	940	1092	35	16	16	41	35	32	14061	406.4
30	9144	7823	4978	54	483	686	362	635	940	1092	38	16	16	44	38	35	16783	406.4
32	9754	8331	5283	54	457	686	362	635	940	1092	38	18	16	44	38	35	19958	406.4
34	10363	8788	5588	60	483	787	406	737	1041	1194	44	18	16	51	44	35	24494	406.4
36	10973	9246	5842	60	457	787	406	737	1041	1194	44	20	16	51	44	35	29937	355.6
38	11582	9754	6198	60	483	813	413	762	1067	1219	51	20	16	57	51	38	36287	406.4
40	12192	10262	6502	67	508	864	451	813	1118	1270	51	20	20	64	51	38	45359	406.4

Notes: [SADDLE STANDARD DWG(pdf)]
　1. All dimensions are in inches unless noted otherwise
　2. All saddles in this size range must be fully designed. The dimensions shown are a starting place or to be used for estimating only!
　3. Assume that anchor bolts diameter is d - 0.125, where d is the diameter of the hole. Assume that slots for sliding saddle are 6 d long.
　4. N = Number of ribs
　5. n = Number of anchor bolts

매크로포함_SHI_SN2430_D12m_견적강도계산 (견적원가).xlsm - [PV4th SADDLES] Sheet 참고

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