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Remaining life as per linear corrosion rate
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Remaining Life Calculation
Part-4 - MAWP Approach -SHELL
Vessel Tag = 2123 FBComponent = ShellComponent Type = CylindericalDesign Code = ASME Sec VIII Div. 1Material = SA-516 Gr. 70Design Pressure P = 11000 KPa
Design Temperature T = 65 C
Outside Diameter OD = mm
Inside Diameter ID = 2000 mm
Original Nominal Thickness t = 74 mm
Design Thickness 71 mm
Minimmum Measured Thickness 72.0617 mm
Allowable Stresses S = 183000 KPa
Future corrosion Allowance FCA = 3 mm
LOSS = 0 mm
Weld Joint Efficiency E = 1Commisioning year = 1988Latest Inspection Year = 2012 mm
Corrosion Rate = 0.0807625
Time MAWP Original1 0.08 72.0 12626.2 12426.42 0.16 71.9 12611.6 12426.43 0.24 71.8 12597.1 12426.44 0.32 71.7 12582.5 12426.45 0.40 71.7 12568.0 12426.46 0.48 71.6 12553.4 12426.47 0.57 71.5 12538.9 12426.48 0.65 71.4 12524.3 12426.49 0.73 71.3 12509.8 12426.4
10 0.81 71.3 12495.2 12426.411 0.89 71.2 12480.7 12426.412 0.97 71.1 12466.1 12426.413 1.05 71.0 12451.6 12426.414 1.13 70.9 12437.0 12426.415 1.21 70.9 12422.5 12426.4
tloss
CAe tc
c
c
tR
SEtMAWP
6.0timeCtCA ratelosse
16 1.29 70.8 12407.9 12426.417 1.37 70.7 12393.4 12426.418 1.45 70.6 12378.8 12426.419 1.53 70.5 12364.3 12426.420 1.62 70.4 12349.8 12426.421 1.70 70.4 12335.2 12426.422 1.78 70.3 12320.7 12426.423 1.86 70.2 12306.1 12426.424 1.94 70.1 12291.6 12426.425 2.02 70.0 12277.1 12426.426 2.10 70.0 12262.5 12426.427 2.18 69.9 12248.0 12426.428 2.26 69.8 12233.5 12426.429 2.34 69.7 12218.9 12426.4
0 5 10 15 20 25 30 3512000
12100
12200
12300
12400
12500
12600
12700
Design MAWPActual MAWP
Time (years)
MAW
P (K
Pa)
71.7972.1472.4871.4271.6
72.4771.2872.7872.0272.33
72.4671.97
72.06167
Remaining Life Calculation
Part-4 - MAWP Approach -SHELL
Vessel Tag = 22-V-7330Component = ShellComponent Type = CylindericalDesign Code = ASME Sec VIII Div. 1Material = SA-516 Gr. 70Design Pressure P = 1100 KPa
Design Temperature T = 65 C
Outside Diameter OD = mm
Inside Diameter ID = 2000 mm
Original Nominal Thickness t = 48 mm
Design Thickness 41 mm
Minimmum Measured Thickness 41.27 mm
Allowable Stresses S = 183000 KPa
Future corrosion Allowance FCA = 3 mm
LOSS = 0 mm
Weld Joint Efficiency E = 1Commisioning year = 1988Latest Inspection Year = 2012 mm
Corrosion Rate = 0.280416666667
Time MAWP Original1 0.28 47.7 17295.5 14839.82 0.56 47.4 17190.0 14839.83 0.84 47.2 17084.6 14839.84 1.12 46.9 16979.2 14839.85 1.40 46.6 16873.9 14839.86 1.68 46.3 16768.7 14839.87 1.96 46.0 16663.4 14839.88 2.24 45.8 16558.3 14839.89 2.52 45.5 16453.1 14839.8
10 2.80 45.2 16348.1 14839.811 3.08 44.9 16243.0 14839.812 3.36 44.6 16138.0 14839.813 3.65 44.4 16033.1 14839.814 3.93 44.1 15928.2 14839.8
tloss
CAe tc
timeCtCA ratelosse
15 4.21 43.8 15823.4 14839.816 4.49 43.5 15718.6 14839.817 4.77 43.2 15613.8 14839.818 5.05 43.0 15509.1 14839.819 5.33 42.7 15404.4 14839.820 5.61 42.4 15299.8 14839.821 5.89 42.1 15195.3 14839.822 6.17 41.8 15090.7 14839.823 6.45 41.6 14986.3 14839.824 6.73 41.3 14881.8 14839.825 7.01 41.0 14777.4 14839.826 7.29 40.7 14673.1 14839.827 7.57 40.4 14568.8 14839.828 7.85 40.1 14464.6 14839.829 8.13 39.9 14360.4 14839.8
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29
Original
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MAWP
17295.5
17190.0
17084.6
16979.2
16873.9
16768.7
16663.4
16558.3
16453.1
16348.1
16243.0
16138.0
16033.1
15928.2
15823.4
15718.6
15613.8
15509.1
15404.4
15299.8
15195.3
15090.7
14986.3
14881.8
14777.4
14673.1
14568.8
14464.6
14360.4
10003000500070009000
1100013000150001700019000
Remaining Life Assessment (Shell)
Axis Title
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29
Original
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5
MAWP
17295.5
17190.0
17084.6
16979.2
16873.9
16768.7
16663.4
16558.3
16453.1
16348.1
16243.0
16138.0
16033.1
15928.2
15823.4
15718.6
15613.8
15509.1
15404.4
15299.8
15195.3
15090.7
14986.3
14881.8
14777.4
14673.1
14568.8
14464.6
14360.4
10003000500070009000
1100013000150001700019000
Remaining Life Assessment (Shell)
Axis Title
