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  • 8/9/2019 Shell D-8133 Fails

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    Signal Fitness-For-Service Report

    Input Data

    Assessment Information:Assessment Type: General Metal Loss

    Design Code: ASME Section VIII Div 1

    FFS Code: June 2007 API 579-1/ASME FFS-1

    Units: lbs - in - psiRSFa: 0.9

    Analysis By: MZW

    Project Information: D-8133

    Equipment Inputs:Equipment: Pressure Vessel

    Nominal Thickness: 0.785 in

    Inside Radius: 9.21 in

    Circumferential Weld Joint Factor: 1

    Longitudinal Weld Joint Factor: 1

    Minimum Thickness

    Minimum thickness = 0.397

    Material Properties:

    Material: ASME Section VIII Div 1Design Temperature: 200 F

    Operating Condition Inputs:Pressure Type: Internal Pressure

    Pressure: 1350 psi

    Internal Uniform Metal Loss: 0.388 in

    External Uniform Metal Loss: 0 in

    Internal Future Corrosion Allowance: 0 in

    External Future Corrosion Allowance: 0 in

    Results Summary

    Part 4 Level 1MAWPr must be greater than Design Pressure.

    Does not satisfy June 2007 API 579-1/ASME FFS-1 Level 1 assessment.(Refer To: June 2007 API 579-1/ASME FFS-1 )

    Part 4 Level 2MAWPr must be greater than Design Pressure.

    Does not satisfy June 2007 API 579-1/ASME FFS-1 Level 2 Assessment.

    (Refer To: June 2007 API 579-1/ASME FFS-1 )

    Step By Step Results

    Part 4 Level 1MAWPr must be greater than Design Pressure.

    Does not satisfy June 2007 API 579-1/ASME FFS-1 Level 1 assessment.

    (Refer To: June 2007 API 579-1/ASME FFS-1 )

    Analysis done according to June 2007 API 579-1/ASME FFS-1

    Step 1: Determine the minimum required thickness.

    TminL = 0.320 in

    TminC = 0.675 in

    Tsl = 0.000 in

    Tmin = 0.675 in

    Step 2: Evaluate the thickness data.

    Tmm = 0.397 in

    Step 3: Determine the wall thickness to be used.

    Tc = 0.397 in

    Step 4: Determine the remaining thickness ratio.

    Rt = 1.000 in

    Step 5: Determine the length for thickness averaging.

    Q = 50.000

    L = 138.029 in

    Step 6: Determine thickness averages.

    Date:1/22/2015

    Genera ted By : Signal Fitness-For-Service Standard Edition, Version 2014.0902

    S igna l FFS is wr i t t en and main ta ined b y Ques t In tegr i t y Group, a Team Indus t r i a l Serv i ces compan y

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    TamC = 0.397 in

    TamS = 0.397 in

    Step 7: Determine the acceptability for continued operation.

    TamS - FCA >= TminC ? No: 0.397 < 0.675

    Averaged longitudinal thickness must be greater than t_minC.

    TamC - FCA >= TminL ? Yes: 0.397 >= 0.320

    Tmm - FCA >= 0.338 ? Yes: 0.397 >= 0.338

    MAWPr = 807.222 psi

    MAWPr >= MAWP ? No: 807.222 < 1350.000

    MAWPr must be greater than Design Pressure.

    Part 4 Level 2MAWPr must be greater than Design Pressure.

    Does not satisfy June 2007 API 579-1/ASME FFS-1 Level 2 Assessment.

    (Refer To: June 2007 API 579-1/ASME FFS-1 )

    Analysis done according to June 2007 API 579-1/ASME FFS-1

    Step 1: Determine the minimum required thickness.

    TminL = 0.320 in

    TminC = 0.675 in

    Tsl = 0.000 in

    Tmin = 0.675 in

    Step 2: Evaluate the thickness data.

    Tmm = 0.397 in

    Step 3: Determine the wall thickness to be used.

    Tc = 0.397 in

    Step 4: Determine the remaining thickness ratio.

    Rt = 1.000 in

    Step 5: Determine the length for thickness averaging.

    Q = 50.000

    L = 138.029 in

    Step 6: Determine thickness averages.

    TamC = 0.397 in

    TamS = 0.397 in

    Step 7: Determine the acceptability for continued operation.

    TamS - FCA >= TminC*RSFa ? No: 0.397 < 0.608

    Averaged longitudinal thickness must be greater than t_minC*RSFa.

    TamC - FCA >= TminL*RSFa ? Yes: 0.397 >= 0.288

    Tmm - FCA >= 0.338 ? Yes: 0.397 >= 0.338

    MAWPr = 894.507 psi

    MAWPr >= MAWP ? No: 894.507 < 1350.000

    MAWPr must be greater than Design Pressure.

    Figures

    Date:1/22/2015

    Genera ted By : Signal Fitness-For-Service Standard Edition, Version 2014.0902

    S igna l FFS is wr i t t en and main ta ined b y Ques t In tegr i t y Group, a Team Indus t r i a l Serv i ces compan y

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