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COINMET S.A.S
COMPRESS Pressure Vessel Design Calculations
Item: STAR UP AIR STORAGE TANK
Tag: MDB-400
Customer: METALCOLMESA
Service: AIR
Location: BALLENAS
Date: martes, julio 24, 2012
You can edit this page by selecting Cover Page settings...in the reportmenu.
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Deficiencies Summary
Deficiencies for INSPECTIONOperating Hot & New Seismic Compressive (governing): 4.5.17: Opening diameter (15,25 in) is greater than 25% ofthe Support Skirt diameter (0,25*54,75 = 13,6875 in).
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Revision History
No. Date Operator Notes
0 7/24/2012 H.F. New vessel created ASME Section VIII Division 1 [COMPRESS 2012 Build 7200]
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Table Of Contents
Deficiencies Summary1.
Revision History2.
Settings Summary3.
Pressure Summary4.
ThicknessSummary5.
Nozzle Schedule6.Nozzle Summary7.
Weight Summary8.
Hydrostatic Test9.
CABEZA SUPERIOR10.
Straight Flange on CABEZA SUPERIOR11.
CABEZA INFERIOR12.
Straight Flange on CABEZA INFERIOR13.
CILINDRO 114.
CILINDRO 215.
AIR INLET (A)16.
AIR OUTLET (B)17.
LIQUID DRAIN (C)18.
AIR INTERCONECTION (E)19.
PRESSURE RELIEF (W)20.
MANUAL VENT (V)21.
PRESSURE GAUGE (P)22.
MANHOLE (H)23.
INSPECTION24.
Skirt Opening #425.
VENT 126.
Support Skirt27.Skirt BaseRing28.
Wind Code29.
Seismic Code30.
LIQUID LEVEL31.
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http://c/Codeware/COMPRESS/2012/7200/Temp/RevHist4221.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/PresSum3923.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/ThkHist1739.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/NozSch7432.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/NozSum4748.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/WtSum1712.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/Hydro6814.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/Ellip9649.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/SF9965.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/Ellip1577.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/SF9677.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/Cyl9929.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/Cyl9576.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/Noz1099.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/Noz4854.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/Noz7923.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/Noz7982.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/Noz7259.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/Noz9706.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/Noz9812.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/Noz9572.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/CW7973.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/CW3166.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/CW319.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/SupSkrt8785.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/SkrtBRng8492.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/Seis9340.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/LL6788.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/LL6788.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/Seis9340.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/Wind2120.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/SkrtBRng8492.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/SupSkrt8785.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/CW319.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/CW3166.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/CW7973.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/Noz9572.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/Noz9812.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/Noz9706.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/Noz7259.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/Noz7982.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/Noz7923.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/Noz4854.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/Noz1099.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/Cyl9576.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/Cyl9929.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/SF9677.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/Ellip1577.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/SF9965.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/Ellip9649.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/Hydro6814.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/WtSum1712.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/NozSum4748.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/NozSch7432.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/ThkHist1739.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/PresSum3923.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/SettingsSum6555.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/RevHist4221.htmlhttp://c/Codeware/COMPRESS/2012/7200/Temp/DeficSum3988.html -
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Settings Summary
COMPRESS 2012 Build 7200
Units: U.S. Customary
Datum Line Location: 0,00" from bottom seam
Design
ASME Section VIII Division 1, 2010 Edition, A11 Addenda
Design or Rating: Get Thickness from Pressure
Minimum thickness: 0,0625" per UG-16(b)
Design for cold shut down only: No
Design for lethal service (full radiography required): No
Design nozzles for: Design P only
Corrosion weight loss: 100% of theoretical loss
UG-23 Stress Increase: 1,20
Skirt/legs stress increase: 1,0
Minimum nozzle projection: 4"Juncture calculations for > 30 only: Yes
Preheat P-No 1 Materials > 1,25" and
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UG-22 Loadings
UG-22(a) Internal or External Design Pressure : Yes
UG-22(b) Weight of the vessel and normal contents under operating or test conditions: Yes
UG-22(c) Superimposed static reactions from weight of attached equipment (external loads): No
UG-22(d)(2) Vessel supports such as lugs, rings, skirts, saddles and legs: Yes
UG-22(f) Wind reactions: Yes
UG-22(f) Seismic reactions: Yes
UG-22(j) Test pressure and coincident static head acting during the test: NoNote: UG-22(b),(c) and (f) loads only considered when supports are present.
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Pressure Summary
Pressure Summary for Chamber bounded by CABEZA INFERIOR and CABEZA SUPERIOR
Identifier
P
Design
( psi)
T
Design
( F)
MAWP
( psi)
MAP
( psi)
MDMT
( F)
MDMT
Exemption
Impact
Tested
CABEZA SUPERIOR 330 170 331,18 377,07 -49,4 Note 1 No
Straight Flange on CABEZA SUPERIOR 330 170 500,45 546,45 -49,4 Note 2 No
CILINDRO 1 330 170 500,45 546,45 -49,4 Note 2 No
CILINDRO 2 330 170 498,28 546,45 -49 Note 3 No
Straight Flange on CABEZA INFERIOR 330 170 498,2 546,45 -48,9 Note 5 No
CABEZA INFERIOR 330 170 332,65 381,27 -48,9 Note 4 No
AIR INLET (A) 330 170 330 330 -55 Note 6 No
AIR OUTLET (B) 330 170 330 330 -55 Note 6 No
LIQUID DRAIN (C) 330 170 330 330 -46,09 Note 7 No
AIR INTERCONECTION (E) 330 170 330 330 -55 Note 6 No
MANHOLE (H) 330 170 330 330 -55Nozzle Note 8 No
Pad Note 9 No
PRESSURE GAUGE (P) 330 170 330 330 -55 Note 6 No
MANUAL VENT (V) 330 170 330 330 -55 Note 6 No
PRESSURE RELIEF (W) 330 170 330 330 -46,34 Note 10 No
Chamber design MDMT is -20 F
Chamber rated MDMT is -46,09 F @ 330 psi
Chamber MAWP hot & corroded is 330 psi @ 170 F
Chamber MAP cold & new is 330 psi @ 70 F
This pressure chamber is not designed for external pressure.
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Notes for MDMT Rating:
Note # Exemption Details
1. Straight Flangegoverns MDMT
2.Material impact test exemption temperature from Fig UCS-66 Curve B = 15 F30 F MDMT reduction per UCS-68(c) applies.
Fig UCS-66.1 MDMT reduction = 34,4 F, (coincident ratio = 0,656)
UCS-66 governing thickness = 0,75 in
3.
Material impact test exemption temperature from Fig UCS-66 Curve B = 15 F
30 F MDMT reduction per UCS-68(c) applies.Fig UCS-66.1 MDMT reduction = 34 F, (coincident ratio = 0,6604)
UCS-66 governing thickness = 0,75 in
4. Straight Flangegoverns MDMT
5.
Material impact test exemption temperature from Fig UCS-66 Curve B = 15 F
30 F MDMT reduction per UCS-68(c) applies.Fig UCS-66.1 MDMT reduction = 33,9 F, (coincident ratio = 0,6605)
UCS-66 governing thickness = 0,75 in
6.Flange rating governs:Flange rated MDMT = -85 F (UCS-68(c) applies.)Bolts rated MDMT per Fig UCS-66 note (c) = -55 F
UCS-66(b)(1)(b)
7.Nozzle impact test exemption temperature from Fig UCS-66 Curve B = -5,49 F30 F MDMT reduction per UCS-68(c) applies.
Fig UCS-66.1 MDMT reduction = 10,6 F, (coincident ratio = 0,8942)
UCS-66 governing thickness = 0,5157 in.
8.
Nozzle impact test exemption temperature from Fig UCS-66 Curve B = -20 F
30 F MDMT reduction per UCS-68(c) applies.Fig UCS-66.1 MDMT reduction = 54,1 F, (coincident ratio = 0,5196)Rated MDMT of -104,1F is limited to -55F by UCS-66(b)(2)
UCS-66 governing thickness = 0,375 in.
9.
Pad impact test exemption temperature from Fig UCS-66 Curve B = -7 F30 F MDMT reduction per UCS-68(c) applies.
Fig UCS-66.1 MDMT reduction = 34 F, (coincident ratio = 0,6598)Rated MDMT of -71F is limited to -55F by UCS-66(b)(2)
UCS-66 governing thickness = 0,5 in.
10.Nozzle impact test exemption temperature from Fig UCS-66 Curve B = -6,04 F30 F MDMT reduction per UCS-68(c) applies.Fig UCS-66.1 MDMT reduction = 10,3 F, (coincident ratio = 0,8974)
UCS-66 governing thickness = 0,51 in.
Design notes are available on the Settings Summarypage.
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Thickness Summary
Component
IdentifierMaterial Diameter
(in)
Length
(in)
Nominal t
(in)
Design t
(in)
Total Corrosion
(in)
Joint
ELoad
CABEZA SUPERIOR SA-516 70 54 ID 14,01 0,51* 0,5084 0,0625 1,00 Internal
Straight Flange on CABEZA SUPERIOR SA-516 70 54 ID 2 0,75 0,5135 0,0625 1,00 Internal
CILINDRO 1 SA-516 70 54 ID 24 0,75 0,5135 0,0625 1,00 Internal
CILINDRO 2 SA-516 70 54 ID 96 0,75 0,5166 0,0625 1,00 Internal
Straight Flange on CABEZA INFERIOR SA-516 70 54 ID 2 0,75 0,5167 0,0625 1,00 Internal
CABEZA INFERIOR SA-516 70 54 ID 14,0157 0,5157* 0,5122 0,0625 1,00 Internal
Support Skirt SA-516 70 54,75 ID 44,5 0,25 0,0166 0 0,55 Seismic
Nominal t: Vessel wall nominal thickness
Design t: Required vessel thickness due to governing loading + corrosion
Joint E: Longitudinal seam joint efficiency
* Head minimum thickness after forming
Load
internal: Circumferential stress due to internal pressure governs
external: External pressure governs
Wind: Combined longitudinal stress of pressure + weight + wind governs
Seismic: Combined longitudinal stress of pressure + weight + seismic governs
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Nozzle Schedule
Nozzle
markService Size
Materials
Nozzle Impact Norm Fine Grain Pad Impact Norm Fine Grain Flange
A AIR INLET 2,00 IDx0,66 SA-105 No No No N/A N/A N/A N/ALWN A105Class 300
B AIR OUTLET NPS 3 Sch 160SA-106 B Smlspipe
No No No N/A N/A N/A N/AWN A105Class 300
C LIQUID DRAIN 0,75 IDx0,56 SA-105 No No No N/A N/A N/A N/ALWN A105
Class 300
E AIR INTERCONECTION 2,00 IDx0,66 SA-105 No No No N/A N/A N/A N/ALWN A105Class 300
H MANHOLE 19,25 IDx0,38 SA-516 70 No No Yes SA-516 70 No No YesWN A105Class 300
P PRESSURE GAUGE 0,75 IDx0,56 SA-105 No No No N/A N/A N/A N/ALWN A105Class 300
V MANUAL VENT 1,00 IDx0,56 SA-105 No No No N/A N/A N/A N/ALWN A105
Class 300
W PRESSURE RELIEF 2,00 IDx0,66 SA-105 No No No N/A N/A N/A N/ALWN A105
Class 300
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Nozzle Summary
Nozzle
mark
OD
(in)
tn
(in)
Req tn
(in)A1? A2?
ShellReinforcement
Pad Corr
(in)
Aa/A
r(%)
Nom t
(in)
Design t
(in)
User t
(in)
Width
(in)
tpad(in)
A 3,31 0,655 0,2515 Yes Yes 0,75 N/A N/A N/A 0,0625 Exempt
B 3,5 0,438 0,2874 Yes Yes 0,75 0,5135 N/A N/A 0,0625 108,5
C 1,88 0,565 0,1894 Yes Yes 0,5157* N/A N/A N/A 0,0625 Exempt
E 3,31 0,655 0,2515 Yes Yes 0,75 N/A N/A N/A 0,0625 Exempt
H 20 0,375 0,2249 Yes Yes 0,75 0,5161 4 0,5 0,0625 105,9
P 1,88 0,565 0,1894 Yes Yes 0,75 N/A N/A N/A 0,0625 Exempt
V 2,12 0,56 0,1973 Yes Yes 0,75 N/A N/A N/A 0,0625 Exempt
W 3,31 0,655 0,2515 Yes Yes 0,51* N/A N/A N/A 0,0625 Exempt
tn: Nozzle thickness
Req tn: Nozzle thickness required per UG-45/UG-16
Nom t: Vessel wall thickness
Design t: Required vessel wall thickness due to pressure + corrosion allowance per UG-37
User t: Local vessel wall thickness (near opening)
Aa: Area available per UG-37, governing condition
Ar: Area required per UG-37, governing condition
Corr: Corrosion allowance on nozzle wall
* Head minimum thickness after forming
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Weight Summary
Component
Weight ( lb) Contributed by Vessel ElementsSurface Area
ft2Metal
New*
Metal
Corroded*Insulation
InsulationSupports
LiningPiping
+ Liquid
Operating Liquid Test Liquid
New Corroded New Corroded
CABEZA SUPERIOR 568,1 502,7 0 0 0 0 0 0 910 917,8 28
CILINDRO 1 875,4 803,4 0 0 0 0 0 0 1.984,3 1.993,5 29
CILINDRO 2 3.431,8 3.149,4 0 0 0 0 5.035,7 5.059,6 7.982 8.019,6 114
CABEZA INFERIOR 574,6 509,1 0 0 0 0 909,5 917,2 909,5 917,2 28
Support Skirt 544 544 0 0 0 0 0 0 0 0 107
Skirt Base Ring 202 202 0 0 0 0 0 0 0 0 23
TOTAL: 6.195,9 5.710,6 0 0 0 0 5.945,2 5.976,8 11.785,7 11.848,1 329
* Shells with attached nozzles have weight reduced by material cut out for opening.
Component
Weight ( lb) Contributed by AttachmentsSurface Area
ft2Body FlangesNozzles &Flanges
PackedBeds
Ladders&Platforms
TraysTray
SupportsRings &
ClipsVerticalLoads
New Corroded New Corroded
CABEZA SUPERIOR 0 0 19 18,1 0 0 0 0 0 0 1
CILINDRO 1 0 0 9,7 9,2 0 0 0 0 0 0 0
CILINDRO 2 0 0 1.130,7 1.120,1 0 0 0 0 0 0 18CABEZA INFERIOR 0 0 7,6 7,2 0 0 0 0 0 0 0
Support Skirt 0 0 25,2 25,2 0 0 0 0 0 0 0
TOTAL: 0 0 1.192,1 1.179,8 0 0 0 0 0 0 20
Vessel operating weight, Corroded: 12.867 lb
Vessel operating weight, New: 13.333 lb
Vessel empty weight, Corroded: 6.890 lb
Vessel empty weight, New: 7.388 lb
Vessel test weight, New: 19.174 lb
Vessel test weight, Corroded: 18.739 lb
Vessel surface area: 349 ft2
Vessel center of gravity location - from datum - lift condition
Vessel Lift Weight, New: 7.388 lb
Center of Gravity: 44,5946"
Vessel Capacity
Vessel Capacity** (New): 1.408 US gal
Vessel Capacity** (Corroded): 1.415 US gal
**The vessel capacity does not include volume of nozzle, piping or other attachments.
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Hydrostatic Test
Shop test pressure determination for Chamber bounded by CABEZA INFERIOR and CABEZA SUPERIORbased on MAWP per UG-99(b)
Shop hydrostatic test gauge pressure is 429 psi at 70 F (the chamber MAWP = 330 psi)
The shop test is performed with the vessel in the horizontal position.
IdentifierLocal testpressure
psi
Test liquidstatic head
psi
UG-99(b)stressratio
UG-99(b)pressure
factor
CABEZA SUPERIOR (1) 430,949 1,949 1 1,30
Straight Flange on CABEZA SUPERIOR 430,949 1,949 1 1,30
CILINDRO 1 430,949 1,949 1 1,30
CILINDRO 2 430,949 1,949 1 1,30
Straight Flange on CABEZA INFERIOR 430,949 1,949 1 1,30
CABEZA INFERIOR 430,949 1,949 1 1,30
AIR INLET (A) 430,638 1,638 1 1,30
AIR INTERCONECTION (E) 430,638 1,638 1 1,30
AIR OUTLET (B) 429,515 0,515 1 1,30
LIQUID DRAIN (C) 429,988 0,988 1 1,30
MANHOLE (H) 430,322 1,322 1 1,30
MANUAL VENT (V) 429,489 0,489 1 1,30
PRESSURE GAUGE (P) 429,276 0,276 1 1,30
PRESSURE RELIEF (W) 430,011 1,011 1 1,30
Notes:
(1) CABEZA SUPERIOR limits the UG-99(b) stress ratio.
(2) The zero degree angular position is assumed to be up, and the test liquid height is assumed to the top-mostflange.
The field test condition has not been investigated for the Chamber bounded by CABEZA INFERIOR and CABEZA
SUPERIOR.
The test temperature of 70 F is warmer than the minimum recommended temperature of -16,09 F so the brittle
fracture provision of UG-99(h) has been met.
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CABEZA SUPERIOR
ASME Section VIII, Division 1, 2010 Edition, A11 Addenda
Component: Ellipsoidal Head
Material Specification: SA-516 70 (II-D p.18, ln. 19)Straight Flangegoverns MDMT
Internal design pressure: P = 330 psi @ 170 F
Static liquid head:
Ps= 0 psi (SG=1, Hs=0" Operating head)
Pth= 1,95 psi (SG=1, Hs=54" Horizontal test head)
Corrosion allowance: Inner C = 0,0625" Outer C = 0"
Design MDMT = -20F No impact test performed
Rated MDMT = -49,4F Material is not normalizedMaterial is produced to fine grain practice
PWHT is performed
Do not Optimize MDMT / Find MAWP
Radiography: Category A joints - Seamless No RT
Head to shell seam - Full UW-11(a) Type 1
Estimated weight*: new = 568,1 lb corr = 502,7 lb
Capacity*: new = 109,1 US gal corr = 110 US gal* includes straight flange
Inner diameter = 54"
Minimum head thickness = 0,51"Head ratio D/2h = 2 (new)Head ratio D/2h = 1,9954 (corroded)
Straight flange length Lsf = 2"Nominal straight flange thickness tsf = 0,75"
Results Summary
The governing condition is internal pressure.Minimum thickness per UG-16 = 0,0625" + 0,0625" = 0,125"
Design thickness due to internal pressure (t) = 0,5084"Maximum allowable working pressure (MAWP) = 331,18psi
Maximum allowable pressure (MAP) = 377,07psi
K (Corroded)
K=(1/6)*[2 + (D / (2*h))2]=(1/6)*[2 + (54,125 / (2*13,5625))2]=0,996931
K (New)
K=(1/6)*[2 + (D / (2*h))2]=(1/6)*[2 + (54 / (2*13,5))2]=1
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Design thickness for internal pressure, (Corroded at 170 F) Appendix 1-4(c)
t = P*D*K / (2*S*E - 0,2*P) + Corrosion= 330*54,125*0,996931 / (2*20.000*1 - 0,2*330) + 0,0625= 0,5084"
The head internal pressure design thickness is 0,5084".
Maximum allowable working pressure, (Corroded at 170 F) Appendix 1-4(c)
P = 2*S*E*t / (K*D + 0,2*t) - Ps= 2*20.000*1*0,4475 / (0,996931*54,125 +0,2*0,4475) - 0
= 331,18 psi
The maximum allowable working pressure (MAWP) is 331,18psi.
Maximum allowable pressure, (New at 70 F) Appendix 1-4(c)
P = 2*S*E*t / (K*D + 0,2*t) - Ps= 2*20.000*1*0,51 / (1*54 +0,2*0,51) - 0= 377,07 psi
The maximum allowable pressure (MAP) is 377,07psi.
% Extreme fiber elongation - UCS-79(d)
EFE = (75*t / Rf)*(1 - Rf/ Ro)
= (75*0,75 / 9,555)*(1 - 9,555 / )
= 5,887%
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Straight Flange on CABEZA SUPERIOR
ASME Section VIII Division 1, 2010 Edition, A11 Addenda
Component: Straight Flange
Material specification: SA-516 70 (II-D p. 18, ln. 19)Material impact test exemption temperature from Fig UCS-66 Curve B = 15 F
30 F MDMT reduction per UCS-68(c) applies.Fig UCS-66.1 MDMT reduction = 34,4 F, (coincident ratio = 0,656)
UCS-66 governing thickness = 0,75 in
Internal design pressure: P = 330 psi @ 170 F
Static liquid head:
Ps = 0 psi (SG = 1, Hs= 0",Operating head)
Pth = 1,95 psi (SG = 1, Hs= 54", Horizontal testhead)
Corrosion allowance Inner C = 0,0625" Outer C = 0"
Design MDMT = -20 F No impact test performed
Rated MDMT = -49,4 F Material is not normalizedMaterial is produced to Fine Grain PracticePWHT is performed
Radiography: Longitudinal joint - Seamless No RTCircumferential joint - Full UW-11(a) Type 1
Estimated weight New = 73 lb corr = 67 lb
Capacity New = 19,83 US gal corr = 19,92 US gal
ID = 54"Length
Lc= 2"
t = 0,75"
Design thickness, (at 170 F) UG-27(c)(1)
t = P*R / (S*E - 0,60*P) + Corrosion= 330*27,0625 / (20.000*1,00 - 0,60*330) + 0,0625
= 0,5135"
Maximum allowable working pressure, (at 170 F) UG-27(c)(1)
P = S*E*t / (R + 0,60*t) - Ps= 20.000*1,00*0,6875 / (27,0625 + 0,60*0,6875) - 0
= 500,45 psi
Maximum allowable pressure, (at 70 F) UG-27(c)(1)
P = S*E*t / (R + 0,60*t)
= 20.000*1,00*0,75 / (27 + 0,60*0,75)= 546,45 psi
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% Extreme fiber elongation - UCS-79(d)
EFE = (50*t / Rf)*(1 - Rf/ Ro)
= (50*0,75 / 27,375)*(1 - 27,375 / )
= 1,3699%
The extreme fiber elongation does not exceed 5%.
Design thickness = 0,5135"
The governing condition is due to internal pressure.
The cylinder thickness of 0,75" is adequate.
Thickness Required Due to Pressure + External Loads
ConditionPressure P (
psi)
AllowableStress BeforeUG-23 StressIncrease ( psi)
Temperature (F)
Corrosion C(in)
LoadReq'd Thk Due to
Tension (in)Req'd Thk Due toCompression (in)
St Sc
Operating, Hot & Corroded 330 20.000 16.265 170 0,0625
Wind 0,1854 0,1854
Seismic 0,1855 0,1854
Operating, Hot & New 330 20.000 16.445 170 0Wind 0,185 0,185
Seismic 0,185 0,1849
Hot Shut Down, Corroded 0 20.000 16.265 170 0,0625Wind 0,0001 0,0002
Seismic 0,0001 0,0002
Hot Shut Down, New 0 20.000 16.445 170 0Wind 0,0002 0,0002
Seismic 0,0001 0,0003
Empty, Corroded 0 20.000 16.265 70 0,0625Wind 0,0001 0,0002
Seismic 0,0001 0,0002
Empty, New 0 20.000 16.445 70 0Wind 0,0002 0,0002
Seismic 0,0001 0,0002
Hot Shut Down, Corroded, Weight& Eccentric Moments Only
0 20.000 16.265 170 0,0625 Weight 0,0002 0,0002
Allowable Compressive Stress, Hot and Corroded- ScHC, (table CS-2)
A = 0,125 / (Ro/ t)
= 0,125 / (27,75 / 0,6875)
= 0,003097
B = 16.265 psi
S = 20.000 / 1,00 = 20.000 psi
ScHC = min(B, S) = 16.265 psi
Allowable Compressive Stress, Hot and New- ScHN, (table CS-2)
A = 0,125 / (Ro/ t)
= 0,125 / (27,75 / 0,75)
= 0,003378
B = 16.445 psi
S = 20.000 / 1,00 = 20.000 psi
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Maximum allowable working pressure, Longitudinal Stress
P = 2*St*Ks*Ec*(t - tm+ tw) / (R - 0,40*(t - tm+ tw))
= 2*20.000*1,20*1,00*(0,6875 - 0 + (0,0001)) / (27,0625 - 0,40*(0,6875 - 0 + (0,0001)))
= 1.232,12 psi
Operating, Hot & New, Wind, Bottom Seam
tp = P*R / (2*St*Ks*Ec+ 0,40*|P|) (Pressure)= 330*27 / (2*20.000*1,20*1,00 + 0,40*|330|)
= 0,1851"
tm = M / (*Rm2*St*Ks*Ec) (bending)
= 943 / (*27,3752*20.000*1,20*1,00)
= 0"
tw = W / (2**Rm*St*Ks*Ec) (Weight)
= 587,1 / (2**27,375*20.000*1,20*1,00)
= 0,0001"
tt = tp+ tm- tw(total required,
tensile)
= 0,1851 + 0 - (0,0001)
= 0,185"
tc = |tmc+ twc- tpc|(total, nettensile)
= |0 + (0,0001) - (0,1851)|
= 0,185"
Maximum allowable working pressure, Longitudinal Stress
P = 2*St*Ks*Ec*(t - tm+ tw) / (R - 0,40*(t - tm+ tw))
= 2*20.000*1,20*1,00*(0,75 - 0 + (0,0001)) / (27 - 0,40*(0,75- 0 + (0,0001)))
= 1.348,54 psi
Hot Shut Down, Corroded, Wind, Bottom Seam
tp = 0" (Pressure)
tm = M / (*Rm2*Sc*Ks) (bending)
= 933 / (*27,40632*16.265,2*1,20)
= 0"
tw = W / (2**Rm*Sc*Ks) (Weight)
= 520,8 / (2**27,4063*16.265,2*1,20)
= 0,0002"tt = |tp+ tm- tw| (total, net compressive)
= |0 + 0 - (0,0002)|
= 0,0001"
tc = tmc+ twc- tpc (total required, compressive)
= 0 + (0,0002) - (0)
= 0,0002"
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Hot Shut Down, New, Wind, Bottom Seam
tp = 0" (Pressure)
tm = M / (*Rm2*Sc*Ks) (bending)
= 943 / (*27,3752*16.445,1*1,20)
= 0"
tw = W / (2**Rm*Sc*Ks) (Weight)
= 587,1 / (2**27,375*16.445,1*1,20)
= 0,0002"
tt = |tp+ tm- tw| (total, net compressive)
= |0 + 0 - (0,0002)|
= 0,0002"
tc = tmc+ twc- tpc (total required, compressive)
= 0 + (0,0002) - (0)
= 0,0002"
Empty, Corroded, Wind, Bottom Seam
tp = 0" (Pressure)tm = M / (*Rm
2*Sc*Ks) (bending)
= 933 / (*27,40632*16.265,2*1,20)
= 0"
tw = W / (2**Rm*Sc*Ks) (Weight)
= 520,8 / (2**27,4063*16.265,2*1,20)
= 0,0002"
tt = |tp+ tm- tw| (total, net compressive)
= |0 + 0 - (0,0002)|
= 0,0001"
tc = tmc+ twc- tpc (total required, compressive)= 0 + (0,0002) - (0)
= 0,0002"
Empty, New, Wind, Bottom Seam
tp = 0" (Pressure)
tm = M / (*Rm2*Sc*Ks) (bending)
= 943 / (*27,3752*16.445,1*1,20)
= 0"
tw = W / (2**Rm*Sc*Ks) (Weight)
= 587,1 / (2**27,375*16.445,1*1,20)= 0,0002"
tt = |tp+ tm- tw| (total, net compressive)
= |0 + 0 - (0,0002)|
= 0,0002"
tc = tmc+ twc- tpc (total required, compressive)
= 0 + (0,0002) - (0)
= 0,0002"
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Hot Shut Down, Corroded, Weight & Eccentric Moments Only, Bottom Seam
tp = 0" (Pressure)
tm = M / (*Rm2*Sc*Ks) (bending)
= 218 / (*27,40632*16.265,2*1,00)
= 0"
tw = W / (2**Rm*Sc*Ks) (Weight)
= 520,8 / (2**27,4063*16.265,2*1,00)
= 0,0002"
tt = |tp+ tm- tw| (total, net compressive)
= |0 + 0 - (0,0002)|
= 0,0002"
tc = tmc+ twc- tpc (total required, compressive)
= 0 + (0,0002) - (0)
= 0,0002"
Operating, Hot & Corroded, Seismic, Bottom Seam
tp = P*R / (2*St*Ks*Ec+ 0,40*|P|) (Pressure)= 330*27,0625 / (2*20.000*1,20*1,00 + 0,40*|330|)
= 0,1855"
tm = M / (*Rm2*St*Ks*Ec) (bending)
= 1.875 / (*27,40632*20.000*1,20*1,00)
= 0"
tw = W / (2**Rm*St*Ks*Ec) (Weight)
= 520,8 / (2**27,4063*20.000*1,20*1,00)
= 0,0001"
tt = tp+ tm- tw(total required,
tensile)= 0,1855 + 0 - (0,0001)
= 0,1855"
twc = (1 + VAccel)*W / (2**Rm*St*Ks*Ec) (Weight)
= 1,20*520,8 / (2**27,4063*20.000*1,20*1,00)
= 0,0002"
tc = |tmc+ twc- tpc|(total, net
tensile)
= |0 + (0,0002) - (0,1855)|
= 0,1854"
Maximum allowable working pressure, Longitudinal Stress
P = 2*St*Ks*Ec*(t - tm+ tw) / (R - 0,40*(t - tm+ tw))
= 2*20.000*1,20*1,00*(0,6875 - 0 + (0,0001)) / (27,0625 - 0,40*(0,6875 - 0 + (0,0001)))
= 1.232,09 psi
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Operating, Hot & New, Seismic, Bottom Seam
tp = P*R / (2*St*Ks*Ec+ 0,40*|P|) (Pressure)
= 330*27 / (2*20.000*1,20*1,00 + 0,40*|330|)
= 0,1851"
tm = M / (*Rm2*St*Ks*Ec) (bending)
= 2.070 / (*27,3752*20.000*1,20*1,00)
= 0"
tw = W / (2**Rm*St*Ks*Ec) (Weight)
= 587,1 / (2**27,375*20.000*1,20*1,00)
= 0,0001"
tt = tp+ tm- tw(total required,tensile)
= 0,1851 + 0 - (0,0001)
= 0,185"
twc = (1 + VAccel)*W / (2**Rm*St*Ks*Ec) (Weight)
= 1,20*587,1 / (2**27,375*20.000*1,20*1,00)
= 0,0002"
tc = |tmc+ twc- tpc|(total, nettensile)
= |0 + (0,0002) - (0,1851)|
= 0,1849"
Maximum allowable working pressure, Longitudinal Stress
P = 2*St*Ks*Ec*(t - tm+ tw) / (R - 0,40*(t - tm+ tw))
= 2*20.000*1,20*1,00*(0,75 - 0 + (0,0001)) / (27 - 0,40*(0,75 - 0 + (0,0001)))
= 1.348,51 psi
Hot Shut Down, Corroded, Seismic, Bottom Seam
tp = 0" (Pressure)
tm = M / (*Rm2*Sc*Ks) (bending)
= 1.875 / (*27,40632*16.265,2*1,20)
= 0"
tw = W / (2**Rm*Sc*Ks) (Weight)
= 520,8 / (2**27,4063*16.265,2*1,20)
= 0,0002"
tt = |tp+ tm- tw| (total, net compressive)
= |0 + 0 - (0,0002)|= 0,0001"
twc = (1 + VAccel)*W / (2**Rm*Sc*Ks) (Weight)
= 1,20*520,8 / (2**27,4063*16.265,2*1,20)
= 0,0002"
tc = tmc+ twc- tpc (total required, compressive)
= 0 + (0,0002) - (0)
= 0,0002"
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Hot Shut Down, New, Seismic, Bottom Seam
tp = 0" (Pressure)
tm = M / (*Rm2*Sc*Ks) (bending)
= 2.070 / (*27,3752*16.445,1*1,20)
= 0"
tw = W / (2**Rm*Sc*Ks) (Weight)
= 587,1 / (2**27,375*16.445,1*1,20)
= 0,0002"
tt = |tp+ tm- tw| (total, net compressive)
= |0 + 0 - (0,0002)|
= 0,0001"
twc = (1 + VAccel)*W / (2**Rm*Sc*Ks) (Weight)
= 1,20*587,1 / (2**27,375*16.445,1*1,20)
= 0,0002"
tc = tmc+ twc- tpc (total required, compressive)
= 0 + (0,0002) - (0)
= 0,0003"
Empty, Corroded, Seismic, Bottom Seam
tp = 0" (Pressure)
tm = M / (*Rm2*Sc*Ks) (bending)
= 1.716 / (*27,40632*16.265,2*1,20)
= 0"
tw = W / (2**Rm*Sc*Ks) (Weight)
= 520,8 / (2**27,4063*16.265,2*1,20)
= 0,0002"
tt = |tp+ tm- tw| (total, net compressive)= |0 + 0 - (0,0002)|
= 0,0001"
twc = (1 + VAccel)*W / (2**Rm*Sc*Ks) (Weight)
= 1,20*520,8 / (2**27,4063*16.265,2*1,20)
= 0,0002"
tc = tmc+ twc- tpc (total required, compressive)
= 0 + (0,0002) - (0)
= 0,0002"
Empty, New, Seismic, Bottom Seam
tp = 0" (Pressure)
tm = M / (*Rm2*Sc*Ks) (bending)
= 1.893 / (*27,3752*16.445,1*1,20)
= 0"
tw = W / (2**Rm*Sc*Ks) (Weight)
= 587,1 / (2**27,375*16.445,1*1,20)
= 0,0002"
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tt = |tp+ tm- tw| (total, net compressive)
= |0 + 0 - (0,0002)|
= 0,0001"
twc = (1 + VAccel)*W / (2**Rm*Sc*Ks) (Weight)
= 1,20*587,1 / (2**27,375*16.445,1*1,20)
= 0,0002"
tc = tmc+ twc- tpc (total required, compressive)
= 0 + (0,0002) - (0)= 0,0002"
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CABEZA INFERIOR
ASME Section VIII, Division 1, 2010 Edition, A11 Addenda
Component: Ellipsoidal Head
Material Specification: SA-516 70 (II-D p.18, ln. 19)Straight Flangegoverns MDMT
Internal design pressure: P = 330 psi @ 170 F
Static liquid head:
Ps= 2,74 psi (SG=1, Hs=75,9425" Operating head)
Pth= 1,95 psi (SG=1, Hs=54" Horizontal test head)
Corrosion allowance: Inner C = 0,0625" Outer C = 0"
Design MDMT = -20F No impact test performed
Rated MDMT = -48,9F Material is not normalizedMaterial is produced to fine grain practice
PWHT is performed
Do not Optimize MDMT / Find MAWP
Radiography: Category A joints - Seamless No RT
Head to shell seam - Full UW-11(a) Type 1
Estimated weight*: new = 574,6 lb corr = 509,1 lb
Capacity*: new = 109,1 US gal corr = 110 US gal* includes straight flange
Inner diameter = 54"
Minimum head thickness = 0,5157"Head ratio D/2h = 2 (new)Head ratio D/2h = 1,9954 (corroded)
Straight flange length Lsf = 2"Nominal straight flange thickness tsf = 0,75"
Results Summary
The governing condition is internal pressure.Minimum thickness per UG-16 = 0,0625" + 0,0625" = 0,125"
Design thickness due to internal pressure (t) = 0,5122"Maximum allowable working pressure (MAWP) = 332,65psi
Maximum allowable pressure (MAP) = 381,27psi
K (Corroded)
K=(1/6)*[2 + (D / (2*h))2]=(1/6)*[2 + (54,125 / (2*13,5625))2]=0,996931
K (New)
K=(1/6)*[2 + (D / (2*h))2]=(1/6)*[2 + (54 / (2*13,5))2]=1
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Design thickness for internal pressure, (Corroded at 170 F) Appendix 1-4(c)
t = P*D*K / (2*S*E - 0,2*P) + Corrosion= 332,74*54,125*0,996931 / (2*20.000*1 - 0,2*332,74) + 0,0625= 0,5121"
The head internal pressure design thickness is 0,5122".
Maximum allowable working pressure, (Corroded at 170 F) Appendix 1-4(c)
P = 2*S*E*t / (K*D + 0,2*t) - Ps= 2*20.000*1*0,4532 / (0,996931*54,125 +0,2*0,4532) - 2,74
= 332,65 psi
The maximum allowable working pressure (MAWP) is 332,65psi.
Maximum allowable pressure, (New at 70 F) Appendix 1-4(c)
P = 2*S*E*t / (K*D + 0,2*t) - Ps= 2*20.000*1*0,5157 / (1*54 +0,2*0,5157) - 0= 381,27 psi
The maximum allowable pressure (MAP) is 381,27psi.
% Extreme fiber elongation - UCS-79(d)
EFE = (75*t / Rf)*(1 - Rf/ Ro)
= (75*0,75 / 9,555)*(1 - 9,555 / )
= 5,887%
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Straight Flange on CABEZA INFERIOR
ASME Section VIII Division 1, 2010 Edition, A11 Addenda
Component: Straight Flange
Material specification: SA-516 70 (II-D p. 18, ln. 19)Material impact test exemption temperature from Fig UCS-66 Curve B = 15 F
30 F MDMT reduction per UCS-68(c) applies.Fig UCS-66.1 MDMT reduction = 33,9 F, (coincident ratio = 0,6605)
UCS-66 governing thickness = 0,75 in
Internal design pressure: P = 330 psi @ 170 F
Static liquid head:
Ps = 2,25 psi (SG = 1, Hs=
62,38",Operating head)
Pth = 1,95 psi (SG = 1, Hs= 54",Horizontal test head)
Corrosion allowance Inner C = 0,0625" Outer C = 0"
Design MDMT = -20 F No impact test performedRated MDMT = -48,9 F Material is not normalized
Material is produced to Fine Grain Practice
PWHT is performed
Radiography: Longitudinal joint - Seamless No RT
Circumferential joint - Full UW-11(a) Type 1
Estimated weight New = 73 lb corr = 67 lb
Capacity New = 19,83 US gal corr = 19,92 US gal
ID = 54"
LengthLc
= 2"
t = 0,75"
Design thickness, (at 170 F) UG-27(c)(1)
t = P*R / (S*E - 0,60*P) + Corrosion
= 332,25*27,0625 / (20.000*1,00 - 0,60*332,25) + 0,0625= 0,5167"
Maximum allowable working pressure, (at 170 F) UG-27(c)(1)
P = S*E*t / (R + 0,60*t) - Ps
= 20.000*1,00*0,6875 / (27,0625 + 0,60*0,6875) - 2,25= 498,2 psi
Maximum allowable pressure, (at 70 F) UG-27(c)(1)
P = S*E*t / (R + 0,60*t)= 20.000*1,00*0,75 / (27 + 0,60*0,75)= 546,45 psi
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% Extreme fiber elongation - UCS-79(d)
EFE = (50*t / Rf)*(1 - Rf/ Ro)
= (50*0,75 / 27,375)*(1 - 27,375 / )
= 1,3699%
The extreme fiber elongation does not exceed 5%.
Design thickness = 0,5167"
The governing condition is due to internal pressure.
The cylinder thickness of 0,75" is adequate.
Thickness Required Due to Pressure + External Loads
ConditionPressure P (
psi)
AllowableStress BeforeUG-23 StressIncrease ( psi)
Temperature (F)
Corrosion C(in)
LoadReq'd Thk Due to
Tension (in)Req'd Thk Due toCompression (in)
St Sc
Operating, Hot & Corroded 330 20.000 16.265 170 0,0625
Wind 0,1862 0,1822
Seismic 0,1872 0,1809
Operating, Hot & New 330 20.000 16.445 170 0Wind 0,1856 0,1816
Seismic 0,1868 0,1802
Hot Shut Down, Corroded 0 20.000 16.265 170 0,0625Wind 0,0006 0,0041
Seismic 0,0016 0,0057
Hot Shut Down, New 0 20.000 16.445 170 0Wind 0,0005 0,0042
Seismic 0,0017 0,006
Empty, Corroded 0 20.000 16.265 70 0,0625Wind 0,0006 0,0041
Seismic 0,0009 0,0048
Empty, New 0 20.000 16.445 70 0Wind 0,0005 0,0042
Seismic 0,0009 0,0051
Hot Shut Down, Corroded, Weight& Eccentric Moments Only
0 20.000 16.265 170 0,0625 Weight 0,001 0,0031
Allowable Compressive Stress, Hot and Corroded- ScHC, (table CS-2)
A = 0,125 / (Ro/ t)
= 0,125 / (27,75 / 0,6875)
= 0,003097
B = 16.265 psi
S = 20.000 / 1,00 = 20.000 psi
ScHC = min(B, S) = 16.265 psi
Allowable Compressive Stress, Hot and New- ScHN, (table CS-2)
A = 0,125 / (Ro/ t)
= 0,125 / (27,75 / 0,75)
= 0,003378
B = 16.445 psi
S = 20.000 / 1,00 = 20.000 psi
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ScHN = min(B, S) = 16.445 psi
Allowable Compressive Stress, Cold and New- ScCN, (table CS-2)
A = 0,125 / (Ro/ t)
= 0,125 / (27,75 / 0,75)
= 0,003378
B = 16.445 psi
S = 20.000 / 1,00 = 20.000 psiScCN = min(B, S) = 16.445 psi
Allowable Compressive Stress, Cold and Corroded- ScCC, (table CS-2)
A = 0,125 / (Ro/ t)
= 0,125 / (27,75 / 0,6875)
= 0,003097
B = 16.265 psi
S = 20.000 / 1,00 = 20.000 psi
ScCC = min(B, S) = 16.265 psi
Allowable Compressive Stress, Vacuum and Corroded- ScVC, (tableCS-2)
A = 0,125 / (Ro/ t)
= 0,125 / (27,75 / 0,6875)
= 0,003097
B = 16.265 psi
S = 20.000 / 1,00 = 20.000 psi
ScVC = min(B, S) = 16.265 psi
Operating, Hot & Corroded, Wind, Bottom Seam
tp = P*R / (2*St*Ks*Ec+ 0,40*|P|) (Pressure)
= 330*27,0625 / (2*20.000*1,20*1,00 + 0,40*|330|)
= 0,1855"
tm = M / (*Rm2*St*Ks*Ec) (bending)
= 113.103 / (*27,40632*20.000*1,20*1,00)
= 0,002"
tw = W / (2**Rm*St*Ks*Ec) (Weight)
= 5.670 / (2**27,4063*20.000*1,20*1,00)
= 0,0014"
tt = tp+ tm- tw(total required,tensile)
= 0,1855 + 0,002 - (0,0014)
= 0,1862"
tc = |tmc+ twc- tpc|(total, nettensile)
= |0,002 + (0,0014) - (0,1855)|
= 0,1822"
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Maximum allowable working pressure, Longitudinal Stress
P = 2*St*Ks*Ec*(t - tm+ tw) / (R - 0,40*(t - tm+ tw))
= 2*20.000*1,20*1,00*(0,6875 - 0,002 + (0,0014)) / (27,0625 - 0,40*(0,6875 - 0,002 + (0,0014)))
= 1.230,79 psi
Operating, Hot & New, Wind, Bottom Seam
tp = P*R / (2*St*Ks*Ec+ 0,40*|P|) (Pressure)= 330*27 / (2*20.000*1,20*1,00 + 0,40*|330|)
= 0,1851"
tm = M / (*Rm2*St*Ks*Ec) (bending)
= 113.395 / (*27,3752*20.000*1,20*1,00)
= 0,002"
tw = W / (2**Rm*St*Ks*Ec) (Weight)
= 6.107,6 / (2**27,375*20.000*1,20*1,00)
= 0,0015"
tt = tp+ tm- tw(total required,
tensile)
= 0,1851 + 0,002 - (0,0015)
= 0,1856"
tc = |tmc+ twc- tpc|(total, nettensile)
= |0,002 + (0,0015) - (0,1851)|
= 0,1816"
Maximum allowable working pressure, Longitudinal Stress
P = 2*St*Ks*Ec*(t - tm+ tw) / (R - 0,40*(t - tm+ tw))
= 2*20.000*1,20*1,00*(0,75 - 0,002 + (0,0015)) / (27 - 0,40*(0,75 - 0,002 + (0,0015)))
= 1.347,36 psi
Hot Shut Down, Corroded, Wind, Bottom Seam
tp = 0" (Pressure)
tm = M / (*Rm2*St*Ks*Ec) (bending)
= 113.103 / (*27,40632*20.000*1,20*1,00)
= 0,002"
tw = W / (2**Rm*St*Ks*Ec) (Weight)
= 5.670 / (2**27,4063*20.000*1,20*1,00)
= 0,0014"tt = tp+ tm- tw (total required, tensile)
= 0 + 0,002 - (0,0014)
= 0,0006"
tmc = M / (*Rm2*Sc*Ks) (bending)
= 113.103 / (*27,40632*16.265,2*1,20)
= 0,0025"
twc = W / (2**Rm*Sc*Ks) (Weight)
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= 5.670 / (2**27,4063*16.265,2*1,20)
= 0,0017"
tc = tmc+ twc- tpc (total required, compressive)
= 0,0025 + (0,0017) - (0)
= 0,0041"
Hot Shut Down, New, Wind, Bottom Seam
tp = 0" (Pressure)
tm = M / (*Rm2*St*Ks*Ec) (bending)
= 113.395 / (*27,3752*20.000*1,20*1,00)
= 0,002"
tw = W / (2**Rm*St*Ks*Ec) (Weight)
= 6.107,6 / (2**27,375*20.000*1,20*1,00)
= 0,0015"
tt = tp+ tm- tw (total required, tensile)
= 0 + 0,002 - (0,0015)
= 0,0005"
tmc = M / (*Rm2*Sc*Ks) (bending)
= 113.395 / (*27,3752*16.445,1*1,20)
= 0,0024"
twc = W / (2**Rm*Sc*Ks) (Weight)
= 6.107,6 / (2**27,375*16.445,1*1,20)
= 0,0018"
tc = tmc+ twc- tpc (total required, compressive)
= 0,0024 + (0,0018) - (0)
= 0,0042"
Empty, Corroded, Wind, Bottom Seam
tp = 0" (Pressure)
tm = M / (*Rm2*St*Ks*Ec) (bending)
= 113.103 / (*27,40632*20.000*1,20*1,00)
= 0,002"
tw = W / (2**Rm*St*Ks*Ec) (Weight)
= 5.670 / (2**27,4063*20.000*1,20*1,00)
= 0,0014"
tt = tp+ tm- tw (total required, tensile)
= 0 + 0,002 - (0,0014)
= 0,0006"
tmc = M / (*Rm2*Sc*Ks) (bending)
= 113.103 / (*27,40632*16.265,2*1,20)
= 0,0025"
twc = W / (2**Rm*Sc*Ks) (Weight)
= 5.670 / (2**27,4063*16.265,2*1,20)
= 0,0017"
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tc = tmc+ twc- tpc (total required, compressive)
= 0,0025 + (0,0017) - (0)
= 0,0041"
Empty, New, Wind, Bottom Seam
tp = 0" (Pressure)
tm = M / (*Rm2*St*Ks*Ec) (bending)
= 113.395 / (*27,3752*20.000*1,20*1,00)
= 0,002"
tw = W / (2**Rm*St*Ks*Ec) (Weight)
= 6.107,6 / (2**27,375*20.000*1,20*1,00)
= 0,0015"
tt = tp+ tm- tw (total required, tensile)
= 0 + 0,002 - (0,0015)
= 0,0005"
tmc = M / (*Rm2*Sc*Ks) (bending)
= 113.395 / (*27,3752*16.445,1*1,20)
= 0,0024"
twc = W / (2**Rm*Sc*Ks) (Weight)
= 6.107,6 / (2**27,375*16.445,1*1,20)
= 0,0018"
tc = tmc+ twc- tpc (total required, compressive)
= 0,0024 + (0,0018) - (0)
= 0,0042"
Hot Shut Down, Corroded, Weight & Eccentric Moments Only, Bottom Seam
tp = 0" (Pressure)tm = M / (*Rm
2*Sc*Ks) (bending)
= 40.451 / (*27,40632*16.265,2*1,00)
= 0,0011"
tw = W / (2**Rm*Sc*Ks) (Weight)
= 5.670 / (2**27,4063*16.265,2*1,00)
= 0,002"
tt = |tp+ tm- tw| (total, net compressive)
= |0 + 0,0011 - (0,002)|
= 0,001"
tc = tmc+ twc- tpc (total required, compressive)= 0,0011+ (0,002) - (0)
= 0,0031"
Operating, Hot & Corroded, Seismic, Bottom Seam
tp = P*R / (2*St*Ks*Ec+ 0,40*|P|) (Pressure)
= 330*27,0625 / (2*20.000*1,20*1,00 + 0,40*|330|)
= 0,1855"
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tm = M / (*Rm2*St*Ks*Ec) (bending)
= 169.069 / (*27,40632*20.000*1,20*1,00)
= 0,003"
tw = W / (2**Rm*St*Ks*Ec) (Weight)
= 5.670 / (2**27,4063*20.000*1,20*1,00)
= 0,0014"
tt
= tp
+ tm
- tw
(total required,
tensile)= 0,1855 + 0,003 - (0,0014)
= 0,1872"
twc = (1 + VAccel)*W / (2**Rm*St*Ks*Ec) (Weight)
= 1,20*5.670 / (2**27,4063*20.000*1,20*1,00)
= 0,0016"
tc = |tmc+ twc- tpc|(total, nettensile)
= |0,003 + (0,0016) - (0,1855)|
= 0,1809"
Maximum allowable working pressure, Longitudinal Stress
P = 2*St*Ks*Ec*(t - tm+ tw) / (R - 0,40*(t - tm+ tw))
= 2*20.000*1,20*1,00*(0,6875 - 0,003 + (0,0014)) / (27,0625 - 0,40*(0,6875 - 0,003 + (0,0014)))
= 1.229 psi
Operating, Hot & New, Seismic, Bottom Seam
tp = P*R / (2*St*Ks*Ec+ 0,40*|P|) (Pressure)
= 330*27 / (2*20.000*1,20*1,00 + 0,40*|330|)
= 0,1851"
tm = M / (*Rm2*St*Ks*Ec) (bending)
= 177.065 / (*27,3752*20.000*1,20*1,00)
= 0,0031"
tw = W / (2**Rm*St*Ks*Ec) (Weight)
= 6.107,6 / (2**27,375*20.000*1,20*1,00)
= 0,0015"
tt = tp+ tm- tw (total required, tensile)
= 0,1851 + 0,0031 - (0,0015)
= 0,1868"
twc = (1 + VAccel)*W / (2**Rm*St*Ks*Ec) (Weight)
= 1,20*6.107,6 / (2**27,375*20.000*1,20*1,00)
= 0,0018"
tc = |tmc+ twc- tpc| (total, net tensile)
= |0,0031 + (0,0018) - (0,1851)|
= 0,1802"
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Maximum allowable working pressure, Longitudinal Stress
P = 2*St*Ks*Ec*(t - tm+ tw) / (R - 0,40*(t - tm+ tw))
= 2*20.000*1,20*1,00*(0,75 - 0,0031 + (0,0015)) / (27 - 0,40*(0,75 - 0,0031 + (0,0015)))
= 1.345,31 psi
Hot Shut Down, Corroded, Seismic, Bottom Seam
tp = 0" (Pressure)tm = M / (*Rm
2*St*Ks*Ec) (bending)
= 169.069 / (*27,40632*20.000*1,20*1,00)
= 0,003"
tw = W / (2**Rm*St*Ks*Ec) (Weight)
= 5.670 / (2**27,4063*20.000*1,20*1,00)
= 0,0014"
tt = tp+ tm- tw (total required, tensile)
= 0 + 0,003 - (0,0014)
= 0,0016"
tmc = M / (*Rm2
*Sc*Ks) (bending)= 169.069 / (*27,40632*16.265,2*1,20)
= 0,0037"
twc = (1 + VAccel)*W / (2**Rm*Sc*Ks) (Weight)
= 1,20*5.670 / (2**27,4063*16.265,2*1,20)
= 0,002"
tc = tmc+ twc- tpc (total required, compressive)
= 0,0037 + (0,002) - (0)
= 0,0057"
Hot Shut Down, New, Seismic, Bottom Seam
tp = 0" (Pressure)
tm = M / (*Rm2*St*Ks*Ec) (bending)
= 177.065 / (*27,3752*20.000*1,20*1,00)
= 0,0031"
tw = W / (2**Rm*St*Ks*Ec) (Weight)
= 6.107,6 / (2**27,375*20.000*1,20*1,00)
= 0,0015"
tt = tp+ tm- tw (total required, tensile)
= 0 + 0,0031 - (0,0015)
= 0,0017"
tmc = M / (*Rm2*Sc*Ks) (bending)
= 177.065 / (*27,3752*16.445,1*1,20)
= 0,0038"
twc = (1 + VAccel)*W / (2**Rm*Sc*Ks) (Weight)
= 1,20*6.107,6 / (2**27,375*16.445,1*1,20)
= 0,0022"
tc = tmc+ twc- tpc (total required, compressive)
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= 0,0038 + (0,0022) - (0)
= 0,006"
Empty, Corroded, Seismic, Bottom Seam
tp = 0" (Pressure)
tm = M / (*Rm2*St*Ks*Ec) (bending)
= 129.104 / (*27,40632*20.000*1,20*1,00)
= 0,0023"
tw = W / (2**Rm*St*Ks*Ec) (Weight)
= 5.670 / (2**27,4063*20.000*1,20*1,00)
= 0,0014"
tt = tp+ tm- tw (total required, tensile)
= 0 + 0,0023 - (0,0014)
= 0,0009"
tmc = M / (*Rm2*Sc*Ks) (bending)
= 129.104 / (*27,40632*16.265,2*1,20)
= 0,0028"
twc = (1 + VAccel)*W / (2**Rm*Sc*Ks) (Weight)
= 1,20*5.670 / (2**27,4063*16.265,2*1,20)
= 0,002"
tc = tmc+ twc- tpc (total required, compressive)
= 0,0028 + (0,002) - (0)
= 0,0048"
Empty, New, Seismic, Bottom Seam
tp = 0" (Pressure)
tm = M / (*Rm2*St*Ks*Ec) (bending)
= 136.774 / (*27,3752*20.000*1,20*1,00)
= 0,0024"
tw = W / (2**Rm*St*Ks*Ec) (Weight)
= 6.107,6 / (2**27,375*20.000*1,20*1,00)
= 0,0015"
tt = tp+ tm- tw (total required, tensile)
= 0 + 0,0024 - (0,0015)
= 0,0009"
tmc = M / (*Rm2*Sc*Ks) (bending)
= 136.774 / (*27,3752*16.445,1*1,20)
= 0,0029"
twc = (1 + VAccel)*W / (2**Rm*Sc*Ks) (Weight)
= 1,20*6.107,6 / (2**27,375*16.445,1*1,20)
= 0,0022"
tc = tmc+ twc- tpc (total required, compressive)
= 0,0029 + (0,0022) - (0)
= 0,0051"
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CILINDRO 1
ASME Section VIII Division 1, 2010 Edition, A11 Addenda
Component: Cylinder
Material specification: SA-516 70 (II-D p. 18, ln. 19)Material impact test exemption temperature from Fig UCS-66 Curve B = 15 F
30 F MDMT reduction per UCS-68(c) applies.Fig UCS-66.1 MDMT reduction = 34,4 F, (coincident ratio = 0,656)
UCS-66 governing thickness = 0,75 in
Internal design pressure: P = 330 psi @ 170 F
Static liquid head:
Ps = 0 psi (SG = 1, Hs= 0",Operating head)
Pth = 1,95 psi (SG = 1, Hs= 54", Horizontal testhead)
Corrosion allowance Inner C = 0,0625" Outer C = 0"
Design MDMT = -20 F No impact test performed
Rated MDMT = -49,4 F Material is not normalizedMaterial is produced to Fine Grain PracticePWHT is performed
Radiography: Longitudinal joint - Full UW-11(a) Type 1Top circumferential joint - Full UW-11(a) Type 1
Bottom circumferential joint - Full UW-11(a) Type 1
Estimated weight New = 875,4 lb corr = 803,4 lb
Capacity New = 237,95 US gal corr = 239,05 US gal
ID = 54"
LengthLc
= 24"
t = 0,75"
Design thickness, (at 170 F) UG-27(c)(1)
t = P*R / (S*E - 0,60*P) + Corrosion
= 330*27,0625 / (20.000*1,00 - 0,60*330) + 0,0625= 0,5135"
Maximum allowable working pressure, (at 170 F) UG-27(c)(1)
P = S*E*t / (R + 0,60*t) - Ps
= 20.000*1,00*0,6875 / (27,0625 + 0,60*0,6875) - 0= 500,45 psi
Maximum allowable pressure, (at 70 F) UG-27(c)(1)
P = S*E*t / (R + 0,60*t)= 20.000*1,00*0,75 / (27 + 0,60*0,75)= 546,45 psi
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% Extreme fiber elongation - UCS-79(d)
EFE = (50*t / Rf)*(1 - Rf/ Ro)
= (50*0,75 / 27,375)*(1 - 27,375 / )
= 1,3699%
The extreme fiber elongation does not exceed 5%.
Design thickness = 0,5135"
The governing condition is due to internal pressure.
The cylinder thickness of 0,75" is adequate.
Thickness Required Due to Pressure + External Loads
ConditionPressure P (
psi)
AllowableStress BeforeUG-23 StressIncrease ( psi)
Temperature (F)
Corrosion C(in)
LoadReq'd Thk Due to
Tension (in)Req'd Thk Due toCompression (in)
St Sc
Operating, Hot & Corroded 330 20.000 16.265 170 0,0625
Wind 0,1853 0,1851
Seismic 0,1854 0,185
Operating, Hot & New 330 20.000 16.445 170 0Wind 0,1849 0,1847
Seismic 0,185 0,1845
Hot Shut Down, Corroded 0 20.000 16.265 170 0,0625Wind 0,0003 0,0005
Seismic 0,0002 0,0007
Hot Shut Down, New 0 20.000 16.445 170 0Wind 0,0003 0,0006
Seismic 0,0002 0,0008
Empty, Corroded 0 20.000 16.265 70 0,0625Wind 0,0003 0,0005
Seismic 0,0002 0,0007
Empty, New 0 20.000 16.445 70 0Wind 0,0003 0,0006
Seismic 0,0002 0,0007
Hot Shut Down, Corroded, Weight& Eccentric Moments Only
0 20.000 16.265 170 0,0625 Weight 0,0005 0,0005
Allowable Compressive Stress, Hot and Corroded- ScHC, (table CS-2)
A = 0,125 / (Ro/ t)
= 0,125 / (27,75 / 0,6875)
= 0,003097
B = 16.265 psi
S = 20.000 / 1,00 = 20.000 psi
ScHC = min(B, S) = 16.265 psi
Allowable Compressive Stress, Hot and New- ScHN, (table CS-2)
A = 0,125 / (Ro/ t)
= 0,125 / (27,75 / 0,75)
= 0,003378
B = 16.445 psi
S = 20.000 / 1,00 = 20.000 psi
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ScHN = min(B, S) = 16.445 psi
Allowable Compressive Stress, Cold and New- ScCN, (table CS-2)
A = 0,125 / (Ro/ t)
= 0,125 / (27,75 / 0,75)
= 0,003378
B = 16.445 psi
S = 20.000 / 1,00 = 20.000 psiScCN = min(B, S) = 16.445 psi
Allowable Compressive Stress, Cold and Corroded- ScCC, (table CS-2)
A = 0,125 / (Ro/ t)
= 0,125 / (27,75 / 0,6875)
= 0,003097
B = 16.265 psi
S = 20.000 / 1,00 = 20.000 psi
ScCC = min(B, S) = 16.265 psi
Allowable Compressive Stress, Vacuum and Corroded- ScVC, (tableCS-2)
A = 0,125 / (Ro/ t)
= 0,125 / (27,75 / 0,6875)
= 0,003097
B = 16.265 psi
S = 20.000 / 1,00 = 20.000 psi
ScVC = min(B, S) = 16.265 psi
Operating, Hot & Corroded, Wind, Bottom Seam
tp = P*R / (2*St*Ks*Ec+ 0,40*|P|) (Pressure)
= 330*27,0625 / (2*20.000*1,20*1,00 + 0,40*|330|)
= 0,1855"
tm = M / (*Rm2*St*Ks*Ec) (bending)
= 6.014 / (*27,40632*20.000*1,20*1,00)
= 0,0001"
tw = W / (2**Rm*St*Ks*Ec) (Weight)
= 1.333,4 / (2**27,4063*20.000*1,20*1,00)
= 0,0003"
tt = tp+ tm- tw(total required,tensile)
= 0,1855 + 0,0001 - (0,0003)
= 0,1853"
tc = |tmc+ twc- tpc|(total, nettensile)
= |0,0001 + (0,0003) - (0,1855)|
= 0,1851"
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Maximum allowable working pressure, Longitudinal Stress
P = 2*St*Ks*Ec*(t - tm+ tw) / (R - 0,40*(t - tm+ tw))
= 2*20.000*1,20*1,00*(0,6875 - 0,0001 + (0,0003)) / (27,0625 - 0,40*(0,6875 - 0,0001 + (0,0003)))
= 1.232,31 psi
Operating, Hot & New, Wind, Bottom Seam
tp = P*R / (2*St*Ks*Ec+ 0,40*|P|) (Pressure)= 330*27 / (2*20.000*1,20*1,00 + 0,40*|330|)
= 0,1851"
tm = M / (*Rm2*St*Ks*Ec) (bending)
= 6.040 / (*27,3752*20.000*1,20*1,00)
= 0,0001"
tw = W / (2**Rm*St*Ks*Ec) (Weight)
= 1.472,2 / (2**27,375*20.000*1,20*1,00)
= 0,0004"
tt = tp+ tm- tw(total required,
tensile)
= 0,1851 + 0,0001 - (0,0004)
= 0,1849"
tc = |tmc+ twc- tpc|(total, nettensile)
= |0,0001 + (0,0004) - (0,1851)|
= 0,1847"
Maximum allowable working pressure, Longitudinal Stress
P = 2*St*Ks*Ec*(t - tm+ tw) / (R - 0,40*(t - tm+ tw))
= 2*20.000*1,20*1,00*(0,75 - 0,0001 + (0,0004)) / (27 - 0,40*(0,75 - 0,0001 + (0,0004)))
= 1.348,77 psi
Hot Shut Down, Corroded, Wind, Bottom Seam
tp = 0" (Pressure)
tm = M / (*Rm2*Sc*Ks) (bending)
= 6.014 / (*27,40632*16.265,2*1,20)
= 0,0001"
tw = W / (2**Rm*Sc*Ks) (Weight)
= 1.333,4 / (2**27,4063*16.265,2*1,20)
= 0,0004"tt = |tp+ tm- tw| (total, net compressive)
= |0 + 0,0001 - (0,0004)|
= 0,0003"
tc = tmc+ twc- tpc (total required, compressive)
= 0,0001 + (0,0004) - (0)
= 0,0005"
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Hot Shut Down, New, Wind, Bottom Seam
tp = 0" (Pressure)
tm = M / (*Rm2*Sc*Ks) (bending)
= 6.040 / (*27,3752*16.445,1*1,20)
= 0,0001"
tw = W / (2**Rm*Sc*Ks) (Weight)
= 1.472,2 / (2**27,375*16.445,1*1,20)
= 0,0004"
tt = |tp+ tm- tw| (total, net compressive)
= |0 + 0,0001 - (0,0004)|
= 0,0003"
tc = tmc+ twc- tpc (total required, compressive)
= 0,0001+ (0,0004) - (0)
= 0,0006"
Empty, Corroded, Wind, Bottom Seam
tp = 0" (Pressure)tm = M / (*Rm
2*Sc*Ks) (bending)
= 6.014 / (*27,40632*16.265,2*1,20)
= 0,0001"
tw = W / (2**Rm*Sc*Ks) (Weight)
= 1.333,4 / (2**27,4063*16.265,2*1,20)
= 0,0004"
tt = |tp+ tm- tw| (total, net compressive)
= |0 + 0,0001 - (0,0004)|
= 0,0003"
tc = tmc+ twc- tpc (total required, compressive)= 0,0001+ (0,0004) - (0)
= 0,0005"
Empty, New, Wind, Bottom Seam
tp = 0" (Pressure)
tm = M / (*Rm2*Sc*Ks) (bending)
= 6.040 / (*27,3752*16.445,1*1,20)
= 0,0001"
tw = W / (2**Rm*Sc*Ks) (Weight)
= 1.472,2 / (2**27,375*16.445,1*1,20)= 0,0004"
tt = |tp+ tm- tw| (total, net compressive)
= |0 + 0,0001 - (0,0004)|
= 0,0003"
tc = tmc+ twc- tpc (total required, compressive)
= 0,0001 + (0,0004) - (0)
= 0,0006"
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Hot Shut Down, Corroded, Weight & Eccentric Moments Only, Bottom Seam
tp = 0" (Pressure)
tm = M / (*Rm2*Sc*Ks) (bending)
= 523 / (*27,40632*16.265,2*1,00)
= 0"
tw = W / (2**Rm*Sc*Ks) (Weight)
= 1.333,4 / (2**27,4063*16.265,2*1,00)
= 0,0005"
tt = |tp+ tm- tw| (total, net compressive)
= |0 + 0 - (0,0005)|
= 0,0005"
tc = tmc+ twc- tpc (total required, compressive)
= 0 + (0,0005) - (0)
= 0,0005"
Operating, Hot & Corroded, Seismic, Bottom Seam
tp = P*R / (2*St*Ks*Ec+ 0,40*|P|) (Pressure)= 330*27,0625 / (2*20.000*1,20*1,00 + 0,40*|330|)
= 0,1855"
tm = M / (*Rm2*St*Ks*Ec) (bending)
= 10.251 / (*27,40632*20.000*1,20*1,00)
= 0,0002"
tw = W / (2**Rm*St*Ks*Ec) (Weight)
= 1.333,4 / (2**27,4063*20.000*1,20*1,00)
= 0,0003"
tt = tp+ tm- tw(total required,
tensile)= 0,1855 + 0,0002 - (0,0003)
= 0,1854"
twc = (1 + VAccel)*W / (2**Rm*St*Ks*Ec) (Weight)
= 1,20*1.333,4 / (2**27,4063*20.000*1,20*1,00)
= 0,0004"
tc = |tmc+ twc- tpc|(total, net
tensile)
= |0,0002 + (0,0004) - (0,1855)|
= 0,185"
Maximum allowable working pressure, Longitudinal Stress
P = 2*St*Ks*Ec*(t - tm+ tw) / (R - 0,40*(t - tm+ tw))
= 2*20.000*1,20*1,00*(0,6875 - 0,0002 + (0,0003)) / (27,0625 - 0,40*(0,6875 - 0,0002 + (0,0003)))
= 1.232,17 psi
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Operating, Hot & New, Seismic, Bottom Seam
tp = P*R / (2*St*Ks*Ec+ 0,40*|P|) (Pressure)
= 330*27 / (2*20.000*1,20*1,00 + 0,40*|330|)
= 0,1851"
tm = M / (*Rm2*St*Ks*Ec) (bending)
= 11.258 / (*27,3752*20.000*1,20*1,00)
= 0,0002"
tw = W / (2**Rm*St*Ks*Ec) (Weight)
= 1.472,2 / (2**27,375*20.000*1,20*1,00)
= 0,0004"
tt = tp+ tm- tw (total required, tensile)
= 0,1851 + 0,0002 - (0,0004)
= 0,185"
twc = (1 + VAccel)*W / (2**Rm*St*Ks*Ec) (Weight)
= 1,20*1.472,2 / (2**27,375*20.000*1,20*1,00)
= 0,0004"
tc
= |tmc
+ twc
- tpc
| (total, net tensile)
= |0,0002 + (0,0004) - (0,1851)|
= 0,1845"
Maximum allowable working pressure, Longitudinal Stress
P = 2*St*Ks*Ec*(t - tm+ tw) / (R - 0,40*(t - tm+ tw))
= 2*20.000*1,20*1,00*(0,75 - 0,0002 + (0,0004)) / (27 - 0,40*(0,75 - 0,0002 + (0,0004)))
= 1.348,6 psi
Hot Shut Down, Corroded, Seismic, Bottom Seam
tp = 0" (Pressure)tm = M / (*Rm
2*Sc*Ks) (bending)
= 10.251 / (*27,40632*16.265,2*1,20)
= 0,0002"
tw = W / (2**Rm*Sc*Ks) (Weight)
= 1.333,4 / (2**27,4063*16.265,2*1,20)
= 0,0004"
tt = |tp+ tm- tw| (total, net compressive)
= |0 + 0,0002 - (0,0004)|
= 0,0002"
twc = (1 + VAccel)*W / (2**Rm*Sc*Ks) (Weight)
= 1,20*1.333,4 / (2**27,4063*16.265,2*1,20)
= 0,0005"
tc = tmc+ twc- tpc (total required, compressive)
= 0,0002 + (0,0005) - (0)
= 0,0007"
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Hot Shut Down, New, Seismic, Bottom Seam
tp = 0" (Pressure)
tm = M / (*Rm2*Sc*Ks) (bending)
= 11.258 / (*27,3752*16.445,1*1,20)
= 0,0002"
tw = W / (2**Rm*Sc*Ks) (Weight)
= 1.472,2 / (2**27,375*16.445,1*1,20)
= 0,0004"
tt = |tp+ tm- tw| (total, net compressive)
= |0 + 0,0002 - (0,0004)|
= 0,0002"
twc = (1 + VAccel)*W / (2**Rm*Sc*Ks) (Weight)
= 1,20*1.472,2 / (2**27,375*16.445,1*1,20)
= 0,0005"
tc = tmc+ twc- tpc (total required, compressive)
= 0,0002 + (0,0005) - (0)
= 0,0008"
Empty, Corroded, Seismic, Bottom Seam
tp = 0" (Pressure)
tm = M / (*Rm2*Sc*Ks) (bending)
= 9.319 / (*27,40632*16.265,2*1,20)
= 0,0002"
tw = W / (2**Rm*Sc*Ks) (Weight)
= 1.333,4 / (2**27,4063*16.265,2*1,20)
= 0,0004"
tt = |tp+ tm- tw| (total, net compressive)= |0 + 0,0002 - (0,0004)|
= 0,0002"
twc = (1 + VAccel)*W / (2**Rm*Sc*Ks) (Weight)
= 1,20*1.333,4 / (2**27,4063*16.265,2*1,20)
= 0,0005"
tc = tmc+ twc- tpc (total required, compressive)
= 0,0002 + (0,0005) - (0)
= 0,0007"
Empty, New, Seismic, Bottom Seam
tp = 0" (Pressure)
tm = M / (*Rm2*Sc*Ks) (bending)
= 10.228 / (*27,3752*16.445,1*1,20)
= 0,0002"
tw = W / (2**Rm*Sc*Ks) (Weight)
= 1.472,2 / (2**27,375*16.445,1*1,20)
= 0,0004"
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tt = |tp+ tm- tw| (total, net compressive)
= |0 + 0,0002 - (0,0004)|
= 0,0002"
twc = (1 + VAccel)*W / (2**Rm*Sc*Ks) (Weight)
= 1,20*1.472,2 / (2**27,375*16.445,1*1,20)
= 0,0005"
tc = tmc+ twc- tpc (total required, compressive)
= 0,0002 + (0,0005) - (0)= 0,0007"
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CILINDRO 2
ASME Section VIII Division 1, 2010 Edition, A11 Addenda
Component: Cylinder
Material specification: SA-516 70 (II-D p. 18, ln. 19)Material impact test exemption temperature from Fig UCS-66 Curve B = 15 F
30 F MDMT reduction per UCS-68(c) applies.Fig UCS-66.1 MDMT reduction = 34 F, (coincident ratio = 0,6604)
UCS-66 governing thickness = 0,75 in
Internal design pressure: P = 330 psi @ 170 F
Static liquid head:
Ps = 2,18 psi (SG = 1, Hs=
60,38",Operating head)
Pth = 1,95 psi (SG = 1, Hs= 54",Horizontal test head)
Corrosion allowance Inner C = 0,0625" Outer C = 0"
Design MDMT = -20 F No impact test performedRated MDMT = -49 F Material is not normalized
Material is produced to Fine Grain Practice
PWHT is performed
Radiography: Longitudinal joint - Full UW-11(a) Type 1
Top circumferential joint - Full UW-11(a) Type 1Bottom circumferential joint - Full UW-11(a) Type 1
Estimated weight New = 3.431,8 lb corr = 3.149,4 lb
Capacity New = 951,78 US gal corr = 956,19 US gal
ID = 54"Length
Lc= 96"
t = 0,75"
Design thickness, (at 170 F) UG-27(c)(1)
t = P*R / (S*E - 0,60*P) + Corrosion= 332,18*27,0625 / (20.000*1,00 - 0,60*332,18) + 0,0625
= 0,5166"
Maximum allowable working pressure, (at 170 F) UG-27(c)(1)
P = S*E*t / (R + 0,60*t) - Ps= 20.000*1,00*0,6875 / (27,0625 + 0,60*0,6875) - 2,18= 498,28 psi
Maximum allowable pressure, (at 70 F) UG-27(c)(1)
P = S*E*t / (R + 0,60*t)= 20.000*1,00*0,75 / (27 + 0,60*0,75)
= 546,45 psi
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% Extreme fiber elongation - UCS-79(d)
EFE = (50*t / Rf)*(1 - Rf/ Ro)
= (50*0,75 / 27,375)*(1 - 27,375 / )
= 1,3699%
The extreme fiber elongation does not exceed 5%.
Design thickness = 0,5166"
The governing condition is due to internal pressure.
The cylinder thickness of 0,75" is adequate.
Thickness Required Due to Pressure + External Loads
ConditionPressure P (
psi)
AllowableStress BeforeUG-23 StressIncrease ( psi)
Temperature (F)
Corrosion C(in)
LoadReq'd Thk Due to
Tension (in)Req'd Thk Due toCompression (in)
St Sc
Operating, Hot & Corroded 330 20.000 16.265 170 0,0625
Wind 0,1861 0,1822
Seismic 0,1871 0,181
Operating, Hot & New 330 20.000 16.445 170 0Wind 0,1856 0,1817
Seismic 0,1867 0,1803
Hot Shut Down, Corroded 0 20.000 16.265 170 0,0625Wind 0,0006 0,0041
Seismic 0,0016 0,0056
Hot Shut Down, New 0 20.000 16.445 170 0Wind 0,0005 0,0042
Seismic 0,0016 0,0058
Empty, Corroded 0 20.000 16.265 70 0,0625Wind 0,0006 0,0041
Seismic 0,0009 0,0048
Empty, New 0 20.000 16.445 70 0Wind 0,0005 0,0042
Seismic 0,0009 0,005
Hot Shut Down, Corroded, Weight& Eccentric Moments Only
0 20.000 16.265 170 0,0625 Weight 0,0009 0,0031
Allowable Compressive Stress, Hot and Corroded- ScHC, (table CS-2)
A = 0,125 / (Ro/ t)
= 0,125 / (27,75 / 0,6875)
= 0,003097
B = 16.265 psi
S = 20.000 / 1,00 = 20.000 psi
ScHC = min(B, S) = 16.265 psi
Allowable Compressive Stress, Hot and New- ScHN, (table CS-2)
A = 0,125 / (Ro/ t)
= 0,125 / (27,75 / 0,75)
= 0,003378
B = 16.445 psi
S = 20.000 / 1,00 = 20.000 psi
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ScHN = min(B, S) = 16.445 psi
Allowable Compressive Stress, Cold and New- ScCN, (table CS-2)
A = 0,125 / (Ro/ t)
= 0,125 / (27,75 / 0,75)
= 0,003378
B = 16.445 psi
S = 20.000 / 1,00 = 20.000 psiScCN = min(B, S) = 16.445 psi
Allowable Compressive Stress, Cold and Corroded- ScCC, (table CS-2)
A = 0,125 / (Ro/ t)
= 0,125 / (27,75 / 0,6875)
= 0,003097
B = 16.265 psi
S = 20.000 / 1,00 = 20.000 psi
ScCC = min(B, S) = 16.265 psi
Allowable Compressive Stress, Vacuum and Corroded- ScVC, (tableCS-2)
A = 0,125 / (Ro/ t)
= 0,125 / (27,75 / 0,6875)
= 0,003097
B = 16.265 psi
S = 20.000 / 1,00 = 20.000 psi
ScVC = min(B, S) = 16.265 psi
Operating, Hot & Corroded, Wind, Bottom Seam
tp = P*R / (2*St*Ks*Ec+ 0,40*|P|) (Pressure)
= 330*27,0625 / (2*20.000*1,20*1,00 + 0,40*|330|)
= 0,1855"
tm = M / (*Rm2*St*Ks*Ec) (bending)
= 110.965 / (*27,40632*20.000*1,20*1,00)
= 0,002"
tw = W / (2**Rm*St*Ks*Ec) (Weight)
= 5.603 / (2**27,4063*20.000*1,20*1,00)
= 0,0014"
tt = tp+ tm- tw(total required,tensile)
= 0,1855 + 0,002 - (0,0014)
= 0,1861"
tc = |tmc+ twc- tpc|(total, nettensile)
= |0,002 + (0,0014) - (0,1855)|
= 0,1822"
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Maximum allowable working pressure, Longitudinal Stress
P = 2*St*Ks*Ec*(t - tm+ tw) / (R - 0,40*(t - tm+ tw))
= 2*20.000*1,20*1,00*(0,6875 - 0,002 + (0,0014)) / (27,0625 - 0,40*(0,6875 - 0,002 + (0,0014)))
= 1.230,83 psi
Operating, Hot & New, Wind, Bottom Seam
tp = P*R / (2*St*Ks*Ec+ 0,40*|P|) (Pressure)= 330*27 / (2*20.000*1,20*1,00 + 0,40*|330|)
= 0,1851"
tm = M / (*Rm2*St*Ks*Ec) (bending)
= 111.257 / (*27,3752*20.000*1,20*1,00)
= 0,002"
tw = W / (2**Rm*St*Ks*Ec) (Weight)
= 6.034,6 / (2**27,375*20.000*1,20*1,00)
= 0,0015"
tt = tp+ tm- tw(total required,
tensile)
= 0,1851 + 0,002 - (0,0015)
= 0,1856"
tc = |tmc+ twc- tpc|(total, nettensile)
= |0,002 + (0,0015) - (0,1851)|
= 0,1817"
Maximum allowable working pressure, Longitudinal Stress
P = 2*St*Ks*Ec*(t - tm+ tw) / (R - 0,40*(t - tm+ tw))
= 2*20.000*1,20*1,00*(0,75 - 0,002 + (0,0015)) / (27 - 0,40*(0,75 - 0,002 + (0,0015)))
= 1.347,39 psi
Hot Shut Down, Corroded, Wind, Bottom Seam
tp = 0" (Pressure)
tm = M / (*Rm2*St*Ks*Ec) (bending)
= 110.965 / (*27,40632*20.000*1,20*1,00)
= 0,002"
tw = W / (2**Rm*St*Ks*Ec) (Weight)
= 5.603 / (2**27,4063*20.000*1,20*1,00)
= 0,0014"tt = tp+ tm- tw (total required, tensile)
= 0 + 0,002 - (0,0014)
= 0,0006"
tmc = M / (*Rm2*Sc*Ks) (bending)
= 110.965 / (*27,40632*16.265,2*1,20)
= 0,0024"
twc = W / (2**Rm*Sc*Ks) (Weight)
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= 5.603 / (2**27,4063*16.265,2*1,20)
= 0,0017"
tc = tmc+ twc- tpc (total required, compressive)
= 0,0024 + (0,0017) - (0)
= 0,0041"
Hot Shut Down, New, Wind, Bottom Seam
tp = 0" (Pressure)
tm = M / (*Rm2*St*Ks*Ec) (bending)
= 111.257 / (*27,3752*20.000*1,20*1,00)
= 0,002"
tw = W / (2**Rm*St*Ks*Ec) (Weight)
= 6.034,6 / (2**27,375*20.000*1,20*1,00)
= 0,0015"
tt = tp+ tm- tw (total required, tensile)
= 0 + 0,002 - (0,0015)
= 0,0005"
tmc = M / (*Rm2*Sc*Ks) (bending)
= 111.257 / (*27,3752*16.445,1*1,20)
= 0,0024"
twc = W / (2**Rm*Sc*Ks) (Weight)
= 6.034,6 / (2**27,375*16.445,1*1,20)
= 0,0018"
tc = tmc+ twc- tpc (total required, compressive)
= 0,0024 + (0,0018) - (0)
= 0,0042"
Empty, Corroded, Wind, Bottom Seam
tp = 0" (Pressure)
tm = M / (*Rm2*St*Ks*Ec) (bending)
= 110.965 / (*27,40632*20.000*1,20*1,00)
= 0,002"
tw = W / (2**Rm*St*Ks*Ec) (Weight)
= 5.603 / (2**27,4063*20.000*1,20*1,00)
= 0,0014"
tt = tp+ tm- tw (total required, tensile)
= 0 + 0,002 - (0,0014)
= 0,0006"
tmc = M / (*Rm2*Sc*Ks) (bending)
= 110.965 / (*27,40632*16.265,2*1,20)
= 0,0024"
twc = W / (2**Rm*Sc*Ks) (Weight)
= 5.603 / (2**27,4063*16.265,2*1,20)
= 0,0017"
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tc = tmc+ twc- tpc (total required, compressive)
= 0,0024 + (0,0017) - (0)
= 0,0041"
Empty, New, Wind, Bottom Seam
tp = 0" (Pressure)
tm = M / (*Rm2*St*Ks*Ec) (bending)
= 111.257 / (*27,3752*20.000*1,20*1,00)
= 0,002"
tw = W / (2**Rm*St*Ks*Ec) (Weight)
= 6.034,6 / (2**27,375*20.000*1,20*1,00)
= 0,0015"
tt = tp+ tm- tw (total required, tensile)
= 0 + 0,002 - (0,0015)
= 0,0005"
tmc = M / (*Rm2*Sc*Ks) (bending)
= 111.257 / (*27,3752*16.445,1*1,20)
= 0,0024"
twc = W / (2**Rm*Sc*Ks) (Weight)
= 6.034,6 / (2**27,375*16.445,1*1,20)
= 0,0018"
tc = tmc+ twc- tpc (total required, compressive)
= 0,0024 + (0,0018) - (0)
= 0,0042"
Hot Shut Down, Corroded, Weight & Eccentric Moments Only, Bottom Seam
tp = 0" (Pressure)tm = M / (*Rm
2*Sc*Ks) (bending)
= 40.451 / (*27,40632*16.265,2*1,00)
= 0,0011"
tw = W / (2**Rm*Sc*Ks) (Weight)
= 5.603 / (2**27,4063*16.265,2*1,00)
= 0,002"
tt = |tp+ tm- tw| (total, net compressive)
= |0 + 0,0011 - (0,002)|
= 0,0009"
tc = tmc+ twc- tpc (total required, compressive)= 0,0011+ (0,002) - (0)
= 0,0031"
Operating, Hot & Corroded, Seismic, Bottom Seam
tp = P*R / (2*St*Ks*Ec+ 0,40*|P|) (Pressure)
= 330*27,0625 / (2*20.000*1,20*1,00 + 0,40*|330|)
= 0,1855"
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tm = M / (*Rm2*St*Ks*Ec) (bending)
= 164.765 / (*27,40632*20.000*1,20*1,00)
= 0,0029"
tw = W / (2**Rm*St*Ks*Ec) (Weight)
= 5.603 / (2**27,4063*20.000*1,20*1,00)
= 0,0014"
tt
= tp
+ tm
- tw
(total required,
tensile)= 0,1855 + 0,0029 - (0,0014)
= 0,1871"
twc = (1 + VAccel)*W / (2**Rm*St*Ks*Ec) (Weight)
= 1,20*5.603 / (2**27,4063*20.000*1,20*1,00)
= 0,0016"
tc = |tmc+ twc- tpc|(total, nettensile)
= |0,0029 + (0,0016) - (0,1855)|
= 0,181"
Maximum allowable working pressure, Longitudinal Stress
P = 2*St*Ks*Ec*(t - tm+ tw) / (R - 0,40*(t - tm+ tw))
= 2*20.000*1,20*1,00*(0,6875 - 0,0029 + (0,0014)) / (27,0625 - 0,40*(0,6875 - 0,0029 + (0,0014)))
= 1.229,11 psi
Operating, Hot & New, Seismic, Bottom Seam
tp = P*R / (2*St*Ks*Ec+ 0,40*|P|) (Pressure)
= 330*27 / (2*20.000*1,20*1,00 + 0,40*|330|)
= 0,1851"
tm = M / (*Rm2*St*Ks*Ec) (bending)
= 172.600 / (*27,3752*20.000*1,20*1,00)
= 0,0031"
tw = W / (2**Rm*St*Ks*Ec) (Weight)
= 6.034,6 / (2**27,375*20.000*1,20*1,00)
= 0,0015"
tt = tp+ tm- tw (total required, tensile)
= 0,1851 + 0,0031 - (0,0015)
= 0,1867"
twc = (1 + VAccel)*W / (2**Rm*St*Ks*Ec) (Weight)
= 1,20*6.034,6 / (2**27,375*20.000*1,20*1,00)
= 0,0018"
tc = |tmc+ twc- tpc| (total, net tensile)
= |0,0031 + (0,0018) - (0,1851)|
= 0,1803"
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Maximum allowable working pressure, Longitudinal Stress
P = 2*St*Ks*Ec*(t - tm+ tw) / (R - 0,40*(t - tm+ tw))
= 2*20.000*1,20*1,00*(0,75 - 0,0031 + (0,0015)) / (27 - 0,40*(0,75 - 0,0031 + (0,0015)))
= 1.345,42 psi
Hot Shut Down, Corroded, Seismic, Bottom Seam
tp = 0" (Pressure)tm = M / (*Rm
2*St*Ks*Ec) (bending)
= 164.765 / (*27,40632*20.000*1,20*1,00)
= 0,0029"
tw = W / (2**Rm*St*Ks*Ec) (Weight)
= 5.603 / (2**27,4063*20.000*1,20*1,00)
= 0,0014"
tt = tp+ tm- tw (total required, tensile)
= 0 + 0,0029 - (0,0014)
= 0,0016"
tmc = M / (*Rm2
*Sc*Ks) (bending)= 164.765 / (*27,40632*16.265,2*1,20)
= 0,0036"
twc = (1 + VAccel)*W / (2**Rm*Sc*Ks) (Weight)
= 1,20*5.603 / (2**27,4063*16.265,2*1,20)
= 0,002"
tc = tmc+ twc- tpc (total required, compressive)
= 0,0036 + (0,002) - (0)
= 0,0056"
Hot Shut Down, New, Seismic, Bottom Seam
tp = 0" (Pressure)
tm = M / (*Rm2*St*Ks*Ec) (bending)
= 172.600 / (*27,3752*20.000*1,20*1,00)
= 0,0031"
tw = W / (2**Rm*St*Ks*Ec) (Weight)
= 6.034,6 / (2**27,375*20.000*1,20*1,00)
= 0,0015"
tt = tp+ tm- tw (total required, tensile)
= 0 + 0,0031 - (0,0015)
= 0,0016"
tmc = M / (*Rm2*Sc*Ks) (bending)
= 172.600 / (*27,3752*16.445,1*1,20)
= 0,0037"
twc = (1 + VAccel)*W / (2**Rm*Sc*Ks) (Weight)
= 1,20*6.034,6 / (2**27,375*16.445,1*1,20)
= 0,0021"
tc = tmc+ twc- tpc (total required, compressive)
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= 0,0037 + (0,0021) - (0)
= 0,0058"
Empty, Corroded, Seismic, Bottom Seam
tp = 0" (Pressure)
tm = M / (*Rm2*St*Ks*Ec) (bending)
= 126.765 / (*27,40632*20.000*1,20*1,00)
= 0,0022"
tw = W / (2**Rm*St*Ks*Ec) (Weight)
= 5.603 / (2**27,4063*20.000*1,20*1,00)
= 0,0014"
tt = tp+ tm- tw (total required, tensile)
= 0 + 0,0022 - (0,0014)
= 0,0009"
tmc = M / (*Rm2*Sc*Ks) (bending)
= 126.765 / (*27,40632*16.265,2*1,20)
= 0,0028"
twc = (1 + VAccel)*W / (2**Rm*Sc*Ks) (Weight)
= 1,20*5.603 / (2**27,4063*16.265,2*1,20)
= 0,002"
tc = tmc+ twc- tpc (total required, compressive)
= 0,0028 + (0,002) - (0)
= 0,0048"
Empty, New, Seismic, Bottom Seam
tp = 0" (Pressure)
tm = M / (*Rm2*St*Ks*Ec) (bending)
= 134.265 / (*27,3752*20.000*1,20*1,00)
= 0,0024"
tw = W / (2**Rm*St*Ks*Ec) (Weight)
= 6.034,6 / (2**27,375*20.000*1,20*1,00)
= 0,0015"
tt = tp+ tm- tw (total required, tensile)
= 0 + 0,0024 - (0,0015)
= 0,0009"
tmc = M / (*Rm2*Sc*Ks) (bending)
= 134.265 / (*27,3752*16.445,1*1,20)
= 0,0029"
twc = (1 + VAccel)*W / (2**Rm*Sc*Ks) (Weight)
= 1,20*6.034,6 / (2**27,375*16.445,1*1,20)
= 0,0021"
tc = tmc+ twc- tpc (total required, compressive)
= 0,0029 + (0,0021) - (0)
= 0,005"
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AIR INLET (A)
ASME Section VIII Division 1, 2010 Edition, A11 Addenda
tw(lower)= 0,75 in
Leg41= 0,375 in
Note: round inside edges per UG-76(c)
Located on: CILINDRO 2Liquid static head included: 0,9161 psi
Nozzle material specification: SA-105 (II-D p. 18, ln. 5)
Nozzle longitudinal joint efficiency: 1
Flange description: NPS 2 Class 300 LWN A105
Bolt Material: SA-193 B7 Bolt
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Reinforcement Calculations for Internal Pressure
UG-37 Area Calculation Summary(in2)
For P = 330,92 psi @ 170 F
UG-45 NozzleWall
ThicknessSummary (in)The nozzle passes
UG-45
Arequired
Aavailable
A1 A2 A3 A5 Aweldstreq tmin
This nozzle is exempt from areacalculations per UG-36(c)(3)(a)
0,2515 0,655
UG-41 Weld Failure Path Analysis Summary
The nozzle is exempt from weld strength calculations
per UW-15(b)(2)
UW-16 Weld Sizing Summary
Weld descriptionRequired weld
throat size (in)
Actual weld
throat size (in)Status
Nozzle to shell fillet (Leg41) 0,25 0,2625 weld size is adequate
Calculations for internal pressure 330,92 psi @ 170 F
Nozzle is impact test exempt to -155 F per UCS-66(b)(3) (coincident ratio = 0,03).
Nozzle UCS-66 governing thk: 0,655 in
Nozzle rated MDMT: -155 F
Parallel Limit of reinforcement per UG-40
LR = MAX(d, Rn+ (tn- Cn) + (t - C))
= MAX(2,125, 1,0625 + (0,655 - 0,0625) + (0,75 - 0,0625))
= 2,3425 in
Outer Normal Limit of reinforcement per UG-40
LH = MIN(2,5*(t - C), 2,5*(tn- Cn) + te)
= MIN(2,5*(0,75 - 0,0625), 2,5*(0,655 - 0,0625) + 0)
= 1,4813 in
Nozzle required thickness per UG-27(c)(1)
trn = P*Rn/ (Sn*E - 0,6*P)
= 330,9161*1,0625 / (20.000*1 - 0,6*330,9161)
= 0,0178 in
Required thickness trfrom UG-37(a)
tr = P*R / (S*E - 0,6*P)
= 330,9161*27,0625 / (20.000*1 - 0,6*330,9161)
= 0,4523 in
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This opening does not require reinforcement per UG-36(c)(3)(a)
UW-16(c) Weld Check
Fillet weld: tmin= lesser of 0,75 or tnor t = 0,5925 in
tc(min)= lesser of 0,25 or 0,7*tmin= 0,25intc(actual)= 0,7*Leg = 0.7*0,375 = 0,2625 in
The fillet weld size is satisfactory.
Weld strength calculations are not required for this detail which conforms to Fig. UW-16.1, sketch (c-e).
UG-45 Nozzle Neck Thickness Check
ta UG-27 = P*R / (S*E - 0,6*P) + Corrosion
= 330,9161*1,0625 / (20.000*1 - 0,6*330,9161) + 0,0625
= 0,0803 in
ta = max[ ta UG-27, ta UG-22]= max[ 0,0803 , 0 ]
= 0,0803 in
tb1 = P*R / (S*E - 0,6*P) + Corrosion
= 330,9161*27,0625 / (20.000*1 - 0,6*330,9161) + 0,0625
= 0,5148 in
tb1 = max[ tb1, tb UG16]
= max[ 0,5148 , 0,125 ]
= 0,5148 in
tb = min[ tb3, tb1]
= min[ 0,2515 , 0,5148 ]
= 0,2515 in
tUG-45 = max[ ta, tb]
= max[ 0,0803 , 0,2515 ]
= 0,2515 in
Available nozzle wall thickness new, tn= 0,655 in
The nozzle neck thickness is adequate.
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AIR OUTLET (B)
ASME Section VIII Division 1, 2010 Edition, A11 Addenda
tw(lower)= 0,75 in
Leg41= 0,5 in
Note: round inside edges per UG-76(c)
Located on: CILINDRO 2Liquid static head included: 0 psi
Nozzle material specification: SA-106 B Smls pipe (II-D p. 10, ln. 40)
Nozzle longitudinal joint efficiency: 1
Nozzle description: NPS 3 Sch 160
Flange description: NPS 3 Class 300 WN A105
Bolt Material: SA-193 B7 Bolt
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Reinforcement Calculations for Internal Pressure
UG-37 Area Calculation Summary (in2)For P = 330 psi @ 170 F
The opening is adequately reinforced
UG-45 NozzleWall
ThicknessSummary (in)The nozzle passes
UG-45
Arequired
Aavailable
A1 A2 A3 A5 Aweldstreq tmin
1,2889 1,398 0,6244 0,5598 -- -- 0,2138 0,2515 0,3833
UG-41 Weld Failure Path Analysis Summary
The nozzle is exempt from weld strength calculationsper UW-15(b)(1)
UW-16 Weld Sizing Summary
Weld descriptionRequired weldthroat size (in)
Actual weldthroat size (in)
Status
Nozzle to shell fillet (Leg41) 0,25 0,35 weld size is adequate
Calculations for internal pressure 330 psi @ 170 F
Fig UCS-66.2 general note (1) applies.
Nozzle is impact test exempt to -155 F per UCS-66(b)(3) (coincident ratio = 0,0837).
Nozzle UCS-66 governing thk: 0,3833 in
Nozzle rated MDMT: -155 F
Parallel Limit of reinforcement per UG-40
LR = MAX(d, Rn+ (tn- Cn) + (t - C))
= MAX(2,749, 1,3745 + (0,438 - 0,0625) + (0,75 - 0,0625))
= 2,749 in
Outer Normal Limit of reinforcement per UG-40
LH = MIN(2,5*(t - C), 2,5*(tn- Cn) + te)
= MIN(2,5*(0,75 - 0,0625), 2,5*(0,438 - 0,0625) + 0)
= 0,9388 in
Nozzle required thickness per UG-27(c)(1)
trn = P*Rn/ (Sn*E - 0,6*P)= 330*1,3745 / (17.100*1 - 0,6*330)
= 0,0268 in
Required thickness trfrom UG-37(a)
tr = P*R / (S*E - 0,6*P)
= 330*27,0625 / (20.000*1 - 0,6*330)
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= 0,451 in
Area required per UG-37(c)
Allowable stresses: Sn= 17.100, Sv= 20.000 psi
fr1= lesser of 1 or Sn/ Sv= 0,855
fr2= lesser of 1 or Sn/ Sv= 0,855
A = d*tr*F + 2*tn*tr*F*(1 - fr1)
= 2,749*0,451*1 + 2*0,3755*0,451*1*(1 - 0,855)
= 1,2889in2
Area available from FIG. UG-37.1
A1= larger of the following= 0,6244in2
= d*(E1*t - F*tr) - 2*tn*(E1*t - F*tr)*(1 - fr1)
= 2,749*(1*0,6875 - 1*0,451) - 2*0,3755*(1*0,6875 - 1*0,451)*(1 - 0,855)
= 0,6244 in2
= 2*(t + tn)*(E1*t - F*tr) - 2*tn*(E1*t - F*tr)*(1 - fr1)
= 2*(0,6875 + 0,3755)*(1*0,6875 -1*0,451) - 2*0,3755*(1*0,6875 - 1*0,451)*(1 - 0,855)
= 0,477 in2
A2= smaller of the following= 0,5598in2
= 5*(tn- trn)*fr2*t= 5*(0,3755 - 0,0268)*0,855*0,6875
= 1,0249 in2
= 5*(tn- trn)*fr2*tn= 5*(0,3755 - 0,0268)*0,855*0,3755
= 0,5598 in2
A41 = Leg2*fr2
= 0,52*0,855
= 0,2138in2
Area = A1+ A2+ A41= 0,6244 + 0,5598 + 0,2138
= 1,398in2
As Area >= A the reinforcement is adequate.
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UW-16(c) Weld Check
Fillet weld: tmin= lesser of 0,75 or tnor t = 0,3755 intc(min)= lesser of 0,25 or 0,7*tmin= 0,25intc(actual)= 0,7*Leg = 0.7*0,5 = 0,35 in
The fillet weld size is satisfactory.
Weld strength calculations are not required for this detail which conforms to Fig. UW-16.1, sketch (c-e).
UG-45 Nozzle Neck Thickness Check
ta UG-27 = P*R / (S*E - 0,6*P) + Corrosion
= 330*1,3745 / (17.100*1 - 0,6*330) + 0,0625
= 0,0893 in
ta = max[ ta UG-27, ta UG-22]
= max[ 0,0893 , 0 ]
= 0,0893 in
tb1 = P*R / (S*E - 0,6*P) + Corrosion
= 330*27,0625 / (20.000*1 - 0,6*330) + 0,0625
= 0,5135 in
tb1 = max[ tb1, tb UG16]
= max[ 0,5135 , 0,125 ]
= 0,5135 in
tb = min[ tb3, tb1]
= min[ 0,2515 , 0,5135 ]
= 0,2515 in
tUG-45 = max[ ta, tb]
= max[ 0,0893 , 0,2515 ]
= 0,2515 in
Available nozzle wall thickness new, tn= 0,875*0,438 = 0,3833 in
The nozzle neck thickness is adequate.
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LIQUID DRAIN (C)
ASME Section VIII Division 1, 2010 Edition, A11 Addenda
tw(lower)= 0,5157 in
Leg41= 0,375 in
Note: round inside edges per UG-76(c)
Located on: CABEZA INFERIORLiquid static head included: 2,9912 psi
Nozzle material specification: SA-105 (II-D p. 18, ln. 5)
Nozzle longitudinal joint efficiency: 1
Flange description: NPS 0,75 Class 300 LWN A105
Bolt Material: SA-193 B7 Bolt
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Reinforcement Calculations for Internal Pressure
UG-37 Area Calculation Summary(in2)
For P = 332,99 psi @ 170 F
UG-45 NozzleWall
ThicknessSummary (in)The nozzle passes
UG-45
Arequired
Aavailable
A1 A2 A3 A5 Aweldstreq tmin
This nozzle is exempt from areacalculations per UG-36(c)(3)(a)
0,1894 0,565
UG-41 Weld Failure Path Analysis Summary
The nozzle is exempt from weld strength calculations
per UW-15(b)(2)
UW-16 Weld Sizing Summary
Weld descriptionRequired weld
throat size (in)
Actual weld
throat size (in)Status
Nozzle to shell fillet (Leg41) 0,25 0,2625 weld size is adequate
Calculations for internal pressure 332,99 psi @ 170 F
Nozzle impact test exemption temperature from Fig UCS-66 Curve B = -5,49 F30 F MDMT reduction per UCS-68(c) applies.Fig UCS-66.1 MDMT reduction = 10,6 F, (coincident ratio = 0,8942).
Nozzle UCS-66 governing thk: 0,5157 in
Nozzle rated MDMT: -46,09 F
Parallel Limit of reinforcement per UG-40
LR = MAX(d, Rn+ (tn- Cn) + (t - C))
= MAX(0,875, 0,4375 + (0,565 - 0,0625) + (0,5157 - 0,0625))
= 1,3932 in
Outer Normal Limit of reinforcement per UG-40
LH = MIN(2,5*(t - C), 2,5*(tn- Cn) + te)
= MIN(2,5*(0,5157 - 0,0625), 2,5*(0,565 - 0,0625) + 0)
= 1,133 in
Nozzle required thickness per UG-27(c)(1)
trn = P*Rn/ (Sn*E - 0,6*P)
= 332,9912*0,4375 / (20.000*1 - 0,6*332,9912)
= 0,0074 in
Required thickness trfrom UG-37(a)(c)
tr = P*K1*D / (2*S*E - 0,2*P)
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= 332,9912*0,8979*54,125 / (2*20.000*1 - 0,2*332,9912)
= 0,4053 in
This opening does not require reinforcement per UG-36(c)(3)(a)
UW-16(c) Weld Check
Fillet weld: tmin= lesser of 0,75 or tnor t = 0,4532 in
tc(min)= lesser of 0,25 or 0,7*tmin= 0,25intc(actual)= 0,7*Leg = 0.7*0,375 = 0,2625 in
The fillet weld size is satisfactory.
Weld strength calculations are not required for this detail which conforms to Fig. UW-16.1, sketch (c-e).
UG-45 Nozzle Neck Thickness Check
Interpretation VIII-1-83-66 has been applied.
ta UG-27 = P*R / (S*E - 0,6*P) + Corrosion
= 333,0098*0,4375 / (20.000*1 - 0,6*333,0098) + 0,0625
= 0,0699 in
ta = max[ ta UG-27, ta UG-22]
= max[ 0,0699 , 0 ]
= 0,0699 in
tb1 = 0,5124 in
tb1
= max[ tb1
, tb UG16
]
= max[ 0,5124 , 0,125 ]
= 0,5124 in
tb = min[ tb3, tb1]
= min[ 0,1894 , 0,5124 ]
= 0,1894 in
tUG-45 = max[ ta, tb]
= max[ 0,0699 , 0,1894 ]
= 0,1894 in
Available nozzle wall thickness new, tn= 0,565 in
The nozzle neck thickness is adequate.
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AIR INTERCONECTION (E)
ASME Section VIII Division 1, 2010 Edition, A11 Addenda
tw(lower)= 0,75 in
Leg41= 0,375 in
Note: round inside edges per UG-76(c)
Located on: CILINDRO 2Liquid static head included: 0 psi
Nozzle material specification: SA-105 (II-D p. 18, ln. 5)
Nozzle longitudinal joint efficiency: 1
Flange description: NPS 2 Class 300 LWN A105
Bolt Material: SA-193 B7 Bolt
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Reinforcement Calculations for Internal Pressure
UG-37 Area Calculation Summary(in2)
For P = 330 psi @ 170 F
UG-45 NozzleWall
ThicknessSummary (in)The nozzle passes
UG-45
Arequired
Aavailable
A1 A2 A3 A5 Aweldstreq tmin
This nozzle is exempt from areacalculations per UG-36(c)(3)(a)
0,2515 0,655
UG-41 Weld Failure Path Analysis Summary
The nozzle is exempt from weld strength calculations
per UW-15(b)(2)
UW-16 Weld Sizing Summary
Weld descriptionRequired weld
throat size (in)
Actual weld
throat size (in)Status
Nozzle to shell fillet (Leg41) 0,25 0,2625 weld size is adequate
Calculations for internal pressure 330 psi @ 170 F
Nozzle is impact test exempt to -155 F per UCS-66(b)(3) (coincident ratio = 0,0299).
Nozzle UCS-66 governing thk: 0,655 in
Nozzle rated MDMT: -155 F
Parallel Limit of reinforcement per UG-40
LR = MAX(d, Rn+ (tn- Cn) + (t - C))
= MAX(2,125, 1,0625 + (0,655 - 0,0625) + (0,75 - 0,0625))
= 2,3425 in
Outer Normal Limit of reinforcement per UG-40
LH = MIN(2,5*(t - C), 2,5*(tn- Cn) + te)
= MIN(2,5*(0,75 - 0,0625), 2,5*(0,655 - 0,0625) + 0)
= 1,4813 in
Nozzle required thickness per UG-27(c)(1)
trn = P*Rn/ (Sn*E - 0,6*P)
= 330*1,0625 / (20.000*1 - 0,6*330)
= 0,0177 in
Required thickness trfrom UG-37(a)
tr = P*R / (S*E - 0,6*P)
= 330*27,0625 / (20.000*1 - 0,6*330)
= 0,451 in
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This opening does not require reinforcement per UG-36(c)(3)(a)
UW-16(c) Weld Check
Fillet weld: tmin= lesser of 0,75 or tnor t = 0,5925 in
tc(min)= lesser of 0,25 or 0,7*tmin= 0,25intc(actual)= 0,7*Leg = 0.7*0,375 = 0,2625 in
The fillet weld size is satisfactory.
Weld strength calculations are no