This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
AGRIANDRE
***********************
VALIDATION DU LOGICIEL PVELITE 2004ASME VIII DIV.2
0 16/03/04 Etablissement S.S JC.L
REV. DATE DESCRIPTION Etabli par : Vérifié par : Approuvé par
4. VÉRIFICATION D’UNE OUVERTURE DANS UN FOND (PAGE 155-156-157-158)............................................................................................................................8
Le but de cette note est de montrer que le logiciel PVELITE 2004 fournis les mêmes résultats que des calculs effectués dans le livre « GUIDEBOOK FOR THE DESIGN OF ASME SECTION VIII PRESSURE VESSELS ».
Nous choisissons trois exemples :- Calcul de l’épaisseur d’une virole.- Calcul de l’épaisseur d’un fond.- Vérification d’une ouverture.
Référence du livre : GUIDEBOOK FOR THE DESIGN OF ASME SECTION VIII PRESSURE VESSELS by James R. Farr and Maan H. JawadEdition ASME PRESS.
Validation de PVELITE 2004 3/13
2. Calcul de l’épaisseur d’une virole (Page 53-54).
2.1. Guidebook.
2.2. PVELITE 2004.
DESIGN CALCULATION In Accordance with ASME Section VIII Division 2 ASME Code Version : 2004, Addenda A-06 Analysis Performed by : CERIAL Job File : C:\DOCUMENTS\DOCUMENTS LOGICIEL\VALIDATION PVELI Date of Analysis : Aug 1,2007 PV Elite 2007, January 2007
Internal Pressure Calculation Results : ASME Code, Section VIII, Division 2, 2004 A-06 Cylindrical Shell From 10 To 20 SA-516 70 , AM-218.1 Curve B at 200 F virole Thickness Due to Internal Pressure [Tr]: = ( P * RCOR ) / ( S - 0.5 * P ) per AD-201 = (1000.00*30.0000)/(20000.00-0.5*1000.00) = 1.5385 + 0.0000 = 1.5385 in.
3. Calcul de l’épaisseur d’un fond hemisphérique (Page 65).
3.1. Guidebook.
3.2. PVELITE 2004.
PVElite 2004 Licensee: CERIAL FileName : Ouverture ------------------------------------- Page 2 Element and Detail Weights STEP: 5 10:27a Mar 16,2004
DESIGN CALCULATION In Accordance with ASME Section VIII Div. 2 ASME Code Version : 2001, Addenda A-03 Analysis Performed by : CERIAL Job File : H:\AFFAIRES EN COURS\AGRIANDRE\TEST ASME\FOND.PV Date of Analysis : Mar 16,2004 PVElite 2004, January 2004
Complete Listing of Vessel Elements and Details: Element From Node 10 Element To Node 20 Element Type Spherical Description Test ASME HEAD Distance "FROM" to "TO" 2.0000 in. Inside Diameter 40.000 in. Element Thickness 30.000 in. Corrosion Allowance 0.0000 in. Design Internal Pressure 10000. psig Design Temperature Internal Pressure 450.0000 F Design External Pressure 15.000 psig Design Temperature External Pressure 200.0000 F Effective Diameter Multiplier 0. Material Name SA-516 70 Allowable Stress, Ambient 20000. psi Allowable Stress, Operating 20000. psi Allowable Stress, Hydrotest 26000. psi
4. Vérification d’une ouverture dans un fond (Page 155-156-157-158).
4.1. Guidebook.
Validation de PVELITE 2004 8/13
Validation de PVELITE 2004 9/13
4.2. PVELITE 2004.
PVElite 2004 Licensee: CERIAL FileName : Ouverture ------------------------------------- Page 2 Element and Detail Weights STEP: 5 10:27a Mar 16,2004
DESIGN CALCULATION In Accordance with ASME Section VIII Div. 2 ASME Code Version : 2001, Addenda A-03 Analysis Performed by : CERIAL Job File : H:\AFFAIRES EN COURS\AGRIANDRE\TEST ASME\OUVERTU Date of Analysis : Mar 16,2004 PVElite 2004, January 2004
Internal Pressure Calculation Results : ASME Code, Section VIII, Division 2, 2001 Code A-03 Addenda Elliptical Head From 10 To 20 SA-516 70 , AM-218.1 Curve B Test ASME OPENNING Thickness Due to Internal Pressure (TR): Required Thickness per Article 4-4 = 0.7791 + 0.0000 = 0.7791 in.
INPUT VALUES, Nozzle Description: 1 From : 10 Pres. for Nozzle Reinforcement Calcs. (Case1) P 700.00 psig Temperature for Internal Pressure Temp 500.00 F Shell Material SA-516 70 Shell Allowable Stress at Temperature S 20500.00 psi Shell Allowable Stress At Ambient Sa 20500.00 psi Inside Diameter of Elliptical Head D 41.7500 in. Aspect Ratio of Elliptical Head Ar 2.00 Head Actual Thickness T 1.0000 in. Head Corrosion Allowance Cas 0.0000 in. User Entered Minimum Design Metal Temperature -20.00 F Nozzle Material SA-106 C
Validation de PVELITE 2004 11/13
Nozzle Allowable Stress at Temperature Sn 21600.00 psi Nozzle Allowable Stress At Ambient Sna 21600.00 psi Nozzle Diameter Basis (for tr calc only) Inbase ID Layout Angle 0.00 deg Nozzle Diameter Dia 8.0000 in. Nozzle Size and Thickness Basis Idbn Actual Actual Thickness of Nozzle Thk 1.1250 in. Nozzle Flange Material SA-105 Nozzle Flange Type Weld Neck Flange Nozzle Corrosion Allowance Can 0.0000 in. Nozzle OutSide Projection Ho 6.0000 in. Weld leg size between Nozzle and Pad/Shell Wo 0.0000 in. Groove weld depth between Nozzle and Vessel Wgnv 0.0000 in. The Nozzle Pressure Design option was Design Pressure + static head NOZZLE CALCULATION, Description: 1 ASME Code, Section VIII, Division 2, 2001, A-03 AD-510,520,530,540,551 Actual Nozzle Diameter Used in Calculation 8.000 in. Actual Nozzle Thickness Used in Calculation 1.125 in. Nozzle input data check completed without errors. Required thickness per AD-201 of Nozzle Wall:CASE 1 = (P*(D/2+CA))/(S-0.5*P) per AD-201 = ( 700.00*(8.0000/2+0.0000))/(21600-0.5*700.00) = 0.1318 in. AD-540, Thickness and Diameter Limit Results : CASE 1 Effective material diameter limit, Dl 16.0000 in. Effective material thickness limit, no pad Tlnp 2.5000 in. Results of Nozzle Reinforcement Area Calculations: AREA AVAILABLE, A1 to A5 Design External Mapnc Area Required (Full Lim.) AR 6.233 NA NA in² Area in Shell A1 1.767 NA NA in² Area in Nozzle Wall A2 4.966 NA NA in² Area in Inward Nozzle A3 0.000 NA NA in² Area in Welds A4 0.000 NA NA in² Area in Pad A5 0.000 NA NA in² Area Available (Full Lim) ATOT 6.733 NA NA in² The Internal Pressure Case Governs the Analysis. Area Required (2/3 Limit) Ar23 4.155 NA NA in² Area Available (2/3 Lim) At23 5.987 NA NA in² Nozzle Angle Used in Area Calculations 90.00 Degs. The area available without a pad is Sufficient. Reinforcement Area Required for Nozzle: Ar = Dlr*Tr + 2*(Thk-Can)*Tr*(1-Fr) per AD-520 & AD-551 Ar = 8.0000*0.7791+2*(1.1250-0.0000)*0.7791*(1.0-1.0000) Ar = 6.2331 in² Areas per AD-550 but with DL = Diameter Limit DLR = Corroded ID: Area Available in Shell (A1): A1 = (Dl-Dlr)*(T-Cas-Tr)-2*(Thk-Can)*(T-Cas-Tr)*(1-Fr) A1 = (16.000-8.000)*(1.0000-0.000-0.779)-2*(1.125-0.000) *(1.0000-0.0000-0.7791)*(1-1.0000) A1 = 1.7669 in² Area Available in Nozzle Wall, no Pad: A2np = ( 2 * Min(Tlnp,Ho) ) * ( Thk - Can - Trn ) * fr A2np = (2*Min(2.500,6.000))*(1.1250-0.0000-0.1318)*1.0000) A2np = 4.9662 in²
Validation de PVELITE 2004 12/13
4.3. Conclusion.
Calcul guidebook :
- Epaisseur du fond : 0.789 in- Epaisseur minimum de la tubulure : 0.132 in- Surface minimum requise pour l’ouverture : 6.312 in²- Surface de renforcement sur le fond : 1.688 in²- Surface de renforcement sur la tubulure : 4.965 in²
Calcul PVELITE 2004 :
- Epaisseur du fond: 0.7791 in- Epaisseur minimum de la tubulure : 0.1318 in- Surface minimum requise pour la tubulure : 6.233 in²- Surface actuelle du fond : 1.767 in²- Surface actuelle de la tubulure : 4.966 in²
La différence pour l’épaisseur du fond vient, pour le guidebook, de la lecture sur des courbes qui ne peut pas être très précise, l’utilisateur a tendance a prendre une valeur lue pessimiste.Les légères différences pour les surfaces sont liées à la différence d’épaisseur du fond.