AutoPIPE Vessel team decided to not apply the Annex C7.A9 for sliding tubesheet because this chapter is not sufficient. There is no rule to determine the thickness of the tubesheet, so we decided to follow the same rules as floating tubesheets; like the other codes (ASME, EN) do. This is a conservative approach to be sure that the thickness of the tubesheet is sufficient. By the way, the behavior of a sliding tubesheet is similar to the one of a floating tubesheet.
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Wiki Page: 27. Why does a BEW heat exchanger designed to CODAP 2005 not calculate to § C7.A9.6 (sliding head exchanger)?
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Wiki Page: 28. The program do not finish the calculation
Applies To Product(s): AutoPIPE Vessel Version(s): ALL Area: General Date Logged & Current Version June 2023 41.01.01.011 Problem: The program do not finish the calculation Solution: This could be happen due to wrong or incomplete modelling of the equipment, Few of the reason could be as follows, 1. Incorrect modelling of heat exchanger type / components 2. Channel head missing in the model 3. Not enough component added with respect to the type of heat exchanger See Also AutoPIPE Vessel Bentley LEARN Server
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Wiki Page: 29. How to calculate the allowable stress for hydrotest case?
Applies To Product(s): AutoPIPE Vessel Version(s): ALL Area: General Date Logged & Current Version June 2023 43.01.01.011 Problem: How to calculate the allowable stress for hydrotest case? Solution: Refer below references for calculation of allowable stress in hydrotest condition, 1. According to ASME Section VIII Div. 2, Clause 4.1.6.2, Allowable stress = 95 % of yield strength 2. According to ASME Section VIII Div. 1, Generally allowable stress = 90 % of yield strength. Note that 90 % yield limit is not given in code but it is common praxis. If you want to change the allowable stress at hydrotest pressure case please follow below steps, Step-1: Select user defined safety factors from Vessel Properties<Design Conditions<Design Values<User Defined<Edit Step-2: Change C4 % value to desired one. You will get required safety factor. See Also AutoPIPE Vessel Bentley LEARN Server
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Wiki Page: 30. How category and nominal stress parameters affects the material safety factor?
Applies To Product(s): AutoPIPE Vessel Version(s): ALL Area: General Date Logged & Current Version June 2023 43.01.01.011 Problem: How category and nominal stress parameters affects the material safety factors? Solution: Answer is, there is no impact of category parameters on material safety factors. But Nominal stress parameter affects the safety factor and hence nominal design stress. If you want to know how to change the safety factors, refer wiki here If you are designing equipment with CODAP, in Characteristics field we have two cells, Category & Nominal Stress as follows, Based on the selection of Construction Category, Factor z changes, (Weld joint efficiency). Nominal design stress values depends on the Nominal stress type selected. But now even after we change the nominal stress type there is no change in the safety factor. We logged a bug for this and our team is working on it and will be implemented in upcoming version. Workaround: Step 1: Choose your required Nominal stress type, Step 2: Change default safety factor to User Defined Step 3: Again change Default Safety Factor to Code Values This will refresh your selection and you can see the correct safety factor as well as nominal design stress. See Also AutoPIPE Vessel Bentley LEARN Server
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Wiki Page: 31. Why there are significantly higher values in wind loading in some particular sections of vessels despite the model no platforms / ladders or other equipment?
Applies To Product(s): AutoPIPE Vessel Version(s): ALL Area: General Date Logged & Current Version June 2023 43.01.01.011 Problem: Why there are significantly higher values in wind loading in some particular sections of vessels despite the model no platforms / ladders or other equipment? Solution: Those loads appear because AutoPIPE Vessel is considering that there is a platform and ladder supported every 8 meter even though they are not modelled. To avoid this, please uncheck the option in the Load Case: , See Also AutoPIPE Vessel Bentley LEARN Server
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Wiki Page: 2. I am designing EN code tubesheet, where do the terms l1, l1' and gamma (γ) come from?
Answer: The terms l1 and l1' in the image of the output report above refer to the lengths of the shell with different thickness adjacent to tubesheet. Refer to Section 13.5.9 and formulae 13.5.9-1 and 13.5.9-3. 'γ' is the axial differential thermal expansion between tube and shell. If the shell is of uniform thickness then the values of l1 and l1' are equal to 0 as shown in the report above.
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Wiki Page: 06. Confirm calculation of Flange dia with specified tolerance and corrosion settings using AutoPIPE Vessel
Example: In the flanges of this equipment, a 1 mm tolerance and 1 mm corrosion margin have been indicated, but in the calculations, the thickness "corroded dimensions" only subtracts 1 mm, for example, flange 20.04, nominal thickness 40 mm, calculation thickness 39 mm (should be 40 - 1 - 1 = 38mm). On the other hand, the body is made of tube and the 7/8 (12.5%) tolerance is applied in the calculation of the cylinder but not in the nozzles, for example, in the calculation of N4, diameter of the opening is 60.3 mm, thickness 5.54 mm and 1 mm corrosion margin so in the dimensions of the table the UG-40, the diameter "d" should be 60.3 - 2*(5.54*7/8-1) = 52,605 mm but in the calculation it appears 60.3 - 2(5.54 - 1) = 51.22 mm. Also, shouldn’t the software take into consideration the corrosion allowance? Since the flange will have corrosion before the gasket, its like when the detail has a male-female face and the software subtracts the thickness of the face from the thickness on the bolt. Answer: For a flange there is no corrosion at the level of the bolt circle since it is above the gasket, only the tolerance is applied in this part. As per ASME UG-37(a) the tolerance is not applicable Furthermore, See below the thickness of the flange (e) to consider for the stresses checking as per Pressure Vessel codes. The local reduction in thickness under the gasket is ignored, the thicknesses are always those measured under the gasket and at the level of the bolting.
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Wiki Page: B. As Per ASME Section VIII
01. Does the calculation of a body flange according to ASME VIII, div 1, consider a rigidity criterion in an AutoPIPE Vessel model? 02. What is the theory being C-factors derivation as per UG-34 in AutoPIPE Vessel? 03. How AutoPIPE Vessel Calculate Corrosion Allowances as UG- 45 or ASME VIII div.1? 04. How do you enter f1 and f2 for cone calculations in ASME VIII mandatory appendix 1-5? 05. How to calculate the allowable stress for hydrotest case? 06. Confirm calculation of Flange dia with specified tolerance and corrosion settings using AutoPIPE Vessel See Also Bentley AutoPIPE Vessel Support Solutions & FAQ's Calculations
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Wiki Page: C. As Per CODAP
01. What is the formula used for hydro-test pressure calculations per CODAP Div. 1 used for Shell and Tube Heat Exchangers in AutoPIPE Vessel? 02. Why does a BEW heat exchanger designed to CODAP 2005 not calculate to § C7.A9.6 (sliding head exchanger)? 03. How category and nominal stress parameters affects the material safety factor? See Also Bentley AutoPIPE Vessel Support Solutions & FAQ's Calculations
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Wiki Page: G. Future Options
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Wiki Page: Calculations
A. As Per BS EN 13445-3 B. As Per ASME Section VIII C. As Per CODAP D. PD 5500 E. AD 2000-Merkblatter F. General See Also Bentley AutoPIPE Vessel Support Solutions & FAQ's
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Wiki Page: 01. While calculating maximum allowable nozzle loads (Fmax) as per EN 13445-3 (2021), Why Δ, K &α are zero?
Applies To Product(s): AutoPIPE Vessel Version(s): ALL Area: Report Date Logged & Current Version Aug 2021 41.01.01.011 Problem: While calculating maximum allowable nozzle loads (Fmax) as per EN 13445-3 (2021), Why Δ, K & α are zero? Solution: While calculating global longitudinal compressive stress limit, As per EN 13445-3 (2021) Clause 16.14.8, Cylinders should not be checked against longitudinal buckling if equation 16.14-15 satisfied. Refer below reference. If equation 16.14-15criteria met, then permissible longitudinal compressive stress σ c, all may be taken as design stress f of the nozzle. Hence in this case no further calculations for Δ, K & α are zero, and σ c, all is same as design stress at design temperature. Note: AutoPIPE Vessel u sing fabrication tolerance quality class C and taking factor PSI (ψ) = 0,75 which is a conservative assumption for vessels that satisfy the manufacturing tolerance requirements of EN 13445-4:2019, Clause 6. See Also AutoPIPE Vessel Bentley LEARN Server
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Wiki Page: F. General
01. Why there are significantly higher values in wind loading in some particular sections of vessels despite the model no platforms / ladders or other equipment? 02. How to check for bolt load calculations for longitudinal saddle load generated during bundle pullout? 03. The program do not finish the calculation 04. How to calculate the tensile stress in bolts of an AutoPIPE Vessel model? 05. Allowable stresses input by user for test conditions in AutoPIPE Vessel 06. The Calculation Strength command or button is grayed out, How to resolve this in AutoPIPE Vessel? 07. Error in the calculation of yC: yC = m + E + m + H/2 in the edition of the results 08. When I select a component and click on "Show Selected Report Calculation Details", nothing seems to happen. What is the solution? 09. Why does the AutoPIPE Vessel calculate different wall thickness for a vertical vessel where one chamber is made with 2 sections of the same material? 10. Rounding Error - value of pi 11. Results are different when using different versions of AutoPIPE Vessel 12. Longitudinal loads on saddles 13. How are the RAHL values calculated? When do the sliding saddles start to move in AutoPIPE Vessel? 14. Obtaining foundation load in AutoPIPE Vessel 15. How do I analyze a rectangular vessel attachment or wear plate? 16. How to perform calculations for test case in AutoPIPE Vessel? 17. Execute > View Calculation Results command not working 18. The "Period" is calculated by what method in AutoPIPE Vessel? 19. Why saddle support reactions are 0.00 in an AutoPIPE Vessel output report? 20. How do you analyze a head with a skirt smaller than the diameter of the head? 21. How AutoPipe vessel takes care of Saddle if its placed on Transition element like Cone? 22. Consequence of the input of the elevation in the dialog of the bracket or ring in AutoPIPE Vessel? See Also Bentley AutoPIPE Vessel Support Solutions & FAQ's Calculations
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Wiki Page: Pressure Vessels
01. How to optimize Body flange design in AutoPIPE Vessel? 02. Number of bolts required for design using AutoPIPE Vessel 03. On Body flange tab, why the calculation of bolts is set by default on the dialog and then imposed by the code to calculate the section in the background thread in AutoPIPE Vessel? 04. Why Corrosion Allowance on the Component Properties dialog in AutoPIPE Vessel is grayed out? 05. Why is Bolting Required area = 0 in AutoPIPE Vessel report? 06. In the annex you will find a file for a vessel according to ASME VIII/2 under internal and external pressure. In the design report it is stated that the opening N03.1 is not adequately reinforced for external pressure. 07. There is an empty page only instead of report after a calculation in AutoPIPE Vessel output report, why? 08. Gasket and Bolt Calculation, what is DL in AutoPIPE Vessel 09. Why does the Packing Weight summary have a different count than shown in the model view for AutoPIPE Vessel? 10. Report option "Report determining case only" in the submenu "Report " appears to not be working correctly in AutoPIPE Vessel 11. When we compute a heat exchanger submitted to wind and earthquake and we select “report determining case only”, APV print lifted and erected cases whereas when we print all cases, the determining case is operating. 12. When computing local loads on a cylindrical shell, the error message “122 CHECKING DATA : Data in this file are obsolete, save it with the latest release to convert data or use a previous release.” displays. What is generating this error? 13. If dc = D2 was applicable to calculate λc only, can this relationship also be apply to equation 49 of GOST R 52857.3 n AutoPIPE Vessel? 14. What fatigue calculations are performed in AutoPIPE Vessel? 15. Can a reinforcing pad be placed on both shell locations of a vertical vessel in AutoPIPE Vessel? 16. Consequence of the input of the elevation in the dialog of the bracket or ring 17. How to add a skirt to a pressure vessel? 18. How to design a jacketed vessel in AutoPIPE Vessel? 19. How to get the nozzle orientation in a view not in a table? 20. How to model a Goose neck nozzle out the bottom of a vertical vessel in AutoPIPE Vessel? 21. Saddles - Calculation of the horizontal longitudinal reactions (RaHL) When do the sliding saddles start to move? 22. What would be the best recommended saddle position for a horizontal vessel in AutoPIPE Vessel ? 23. Can you specify different temperature zones for a vessel in AutoPIPE Vessel? 24. How can one change the deflection and rotation limits on columns (top and trays) especially for optimization of column design in an AutoPIPE Vessel Model? 25. How can we change reference point in AutoPipe vessel while designing pressure vessel? 26. How do you specify longitudinal weld orientation in AutoPIPE Vessel? 27. How to add weight of packing to the “lifting” load case in an AutoPIPE Vessel model? 28. How to create custom saddles in AutoPIPE Vessel? 29. How to model a standard raised face ring type joint flange in AutoPIPE Vessel? 30. How to specify circular weld in AutoPIPE Vessel? 31. How to add a boot to a vertical vessel in AutoPIPE Vessel? 32. Can 2 rings supports be added to a AutoPIPE Vessel model? 33. Why are there no trunnions characteristics for our vessel in AutoPIPE Vessel's output report 34. How To insert a Boot 35. How does one model supporting an inner vessel from an outer vessel in AutoPIPE Vessel? 36. How AutoPipe vessel takes care of "After forming thickness" for different kind of pressure vessel "Heads"? 37. Can Auto Pipe Vessel design the guide support or calculate the reaction on the guide support and corresponding stress on the shell of the tall column? 38. How to add more than 04 vents in the skirt? 39. How to model a skirt stiffener in AutoPIPE Vessel 40. In a vertical vessel model with a skirt, the bottom ellipsoidal head needs to be changed to a conical head, but is not graphically drawn correctly in AutoPIPE Vessel, who and how to fix it? 41. Connecting head directly to flange in AutoPIPE Vessel 42. How can I insert a saddles with a stiffener ring in AutoPIPE Vessel? 43. How to model a vertical vessel for transportation in horizontal position using AutoPIPE Vessel? 44. What is the critical value of half angle at skirt apex considered by the software for GOST code? 45. What is the required thickness for the longitudinal stresses at the circumferential weld (ASME VIII UG-27(c)(2))? 46. What methods are used to calculate the K factor from ASME VIII Div 1 47. Do the horizontal seismic actions in AutoPIPE Vessel come from the full weight in case (+), and in case (-) come from a reduced weight? (reduced = 60% of weight) 48. A dd a platform to a horizontal vessel 49. How to add a structural shape C for skirt attachments as per EN 13445-3 16.12.3.4 (Figure 16.12-3) and AD2000 S3/1 ? 50. How to add a multiple saddle in horizontal pressure vessel? 51. Flange rating in program does not match that in the report See Also AutoPIPE Vessel FAQ
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Wiki Page: 08. How to model a nozzle that is rotating due to hydrostatic bulging at the base of a large storage tank that is not on the global axis in AutoPIPE?
Applies To Product(s): AutoPIPE, Version(s): All Area: Modeling Original Author: Bentley Technical Support Group Dec 2014, AutoPIPE V8i 09.06.01.10 Problem: How to model a nozzle that is rotating due to hydrostatic bulging at the base of a large storage tank that is not on the global axis? Large storage tanks start to bulge at the base as the liquid level rises, see exaggerated image below: Sometimes these bulges occur at the same level as a nozzle connections to the tank. The image on the left show a nozzle that is horizontal when the tank liquid level is low. However as the liquid level increase the base of the tank begins to bulge cause the nozzle to rotate, image on the right. How do I model this without doing a lot of hand calculation for values to be used as input? Solution: In a new model, insert piping layout as needed. The location where the nozzle connects to the tank should be modeled as an anchor point. Account for the nozzle rotation by applying Thermal Anchor movement Dx, Dy, Dz, Rx, Ry, & Rz. With regards to the original problem description above, modeling off global axis can be tough. For situations like this, one solution maybe to model the Tank nozzle connection with a little of the system piping on a global axis. Next, open the Anchor dialog and enter the correct displacement and rotational values for the nozzle due to the bulging vessel, example: Select the nozzle anchor and local piping currently on the global axis and rotate it to the correct orientation as needed (ex. rotate about the vertical axis -22.5 Deg..) Use the results from this report or open the rotated anchor dialog to see the updated values: Done.. This modeling approach now accounts for hydrostatic bulging tank and the affects on piping systems that may or maybe not on a global axis, See Also Modeling Vessel / Nozzles Bentley AutoPIPE
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Wiki Page: Support Solutions and FAQ's
A. Air Coolers B. Boilers C. Calculations D. Coils E. Cost Estimation F. Drawings G. Expansion Joints H. Import/Export I. Interface J. Lifting Lugs K. Loads and Load Combinations L. Material Database and Libraries M. Nozzles and Flanges N. Pressure Vessels O. Reports P. Shells Q. Shell and Tube Heat Exchangers R. Tanks S. Units T. Vortex Shedding U. Weld Joints
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Wiki Page: General Information
A. Certification and Verification B. Codes and Standards covered C. Download and Installation D. Readme Release Notes E. Information and Product Datasheet F. Licenses G. Technical Support
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Wiki Page: A. Certification and Verification
01. Validation/QA Documents 02. Join Private User Community 03. Access Private Community 04. Validation Models with Results 05. ASME VIII Div1 Chapter UHX (Design of Tubesheets) Documentation Showing AutoPIPE Vessel Meets ASME PTB-4 Rules
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Wiki Page: C. Download and Installation
Download / update Installation instructions Note: Please review Readme file for authorized Operating Systems that AutoPIPE Vessel has been tested and successfully operates on: Installing the application to an OS that is NOT listed in the Read Me file (i.e. Citrix, Windows Server) of the respective version will be at your own risk. If you encounter installation issues, our development team will try to help, but may not be able to resolve all the issues. Recommend to log a Service request. Other Installation Questions: 00. Readme files 01. Install on a MacBook? 02. Install from the command line 03. Install multiple versions 04. How to Install and License AutoPIPE Vessel 33.02.xx.xx 05. How to Install and License AutoPIPE Vessel 33.03.01.07 06. How to install AutoPIPE Vessel CONNECT 40.06.xx.xx to 40.00.00.xx? 07. How to install AutoPIPE Vessel CONNECT 40.07.xx.xx? 08. How to install AutoPIPE Vessel CONNECT 41.00 to 42.00? 09. How to install AutoPIPE Vessel CONNECT 41.05.xx.xx? 10. How to install AutoPIPE Vessel CONNECT 42.00.00.008? 11. Installing on an untested Operating System 12. Do I have to uninstall Microprotol before installing AutoPIPE Vessel? 13. Download AutoPIPE Vessel procedure for those who received an Order Document 14. Uninstall AutoPIPE Vessel 15. Install .NET Framework See Also: Download, Installation, Uninstall - Bentley AutoPIPE Vessel Bentley AutoPIPE Vessel
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Wiki Page: E. Licenses
SES (Subscription Entitlement Service) AutoPIPE Vessel v.41.00 and higher Virtuosity - Why Virtuosity? Account Administration is not related to being fulfilment contact or purchaser of a license on an existing account. In order to assign Virtuosity license, an account or co-administrator can access the Entitlement Management page. If you require this role, only a current administrator can add this role to your login. Note, Bentley cannot provide anyone names of account or co-administrators. Please review instructions here on who are my company's Bentley On-site Administrator(s) . This is due to to privacy and compliance laws. SELECTserver Being deprecated on Dec 31, 2020 AutoPIPE Vessel v.40.xx and lower FAQ's to categories above 1. Available features in AutoPIPE Vessel based on license type selected - click here 2. Who are my company's Bentley On-site Administrator(s)? 3. Expiring support on these dates - BENTLEY SUPPORT POLICY 4. Trust licensing Subscription Types 1. Enterprise license subscription (ELS) 2. Select Open Access (SOA) 3. Practitioner (Virtuosity) 4. Select 5. Non-Select See Also General Information AutoPIPE Vessel
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