Applies To Product(s): AutoPIPE Vessel Version(s): V8i Environment: N/A Area: Output report Subarea: Original Author: Bentley Technical Support Group Comments, Questions, and Answers related to Pressure Vessel's output report Item #1: 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. Sallow. in this case is calculated with 3.299 MPa but according to the design report Fha for this shell section is 17.4696 MPa. Can you please explain why Sallow. is lower than Fha? If the hydrotest condition 'horizontal code pressure' is deleted the opening is adequately reinforced Sallow. = 38.681 MPa which is greater than Fha . Why? Answer: This issue was logged under TFS-D73031, Opening under external pressure on Heat Exchanger in ASME VIII div.2: wrong calculation of allowable hoop compressive membrane stress of a cylinder. This issue has been fixed in the AutoPIPE Vessel Maintenance Release 2 (v33.02.01.08) or higher. Please confirm / update your version of AutoPIPE Vessel to v 33.02.01.08 or higher. Item #2: There is an empty page only instead of report after a calculation in AutoPIPE Vessel output report, why? Answer: it is necessary to have installed Microsoft Office Word to display the results in a correct form (with graphs and other important information). The output reports are not supported by other word processing applications: i.e. Open Office, Libre Office, Apache Office, Wordpad, Notepad, and others. Item #3: "Body Flange and Cover" sub-section Gasket and Bolt Calculation, what is DL? How is DL calculated? Answer: In AutoPIPE Vessel the gasket may be defined on the Body Flange and Cover Properties dialog screen , Gasket Tab, as follow: Help for the field "Inner/Outer Width" for the Centering and/or Compression Ring indicates: For this type of gaskets, as shown in French code, "G" is the external contact diameter of gasket with the flange. Therefore, "DL" is the external diameter of the gasket. To obtain "DL", input the value of "Inner/Outer Width" in the dialog for gaskets dimensions. In the abstract of the calculation report above: G = 1009 mm, DL= 1109 mm [Inner/Outer Width = 50 mm Ò G + (2x50)] H = 0.785 x 10092 x 1.6 = 1279358 N Hp = 0.785 x (11092 - 10092)x 1.6 = 266156 N Item #4 : Why does the Packing Weight summary have a different count than shown in the model view for AutoPIPE Vessel? See Also Bentley AutoPIPE External Links Bentley Technical Support KnowledgeBase Bentley LEARN Server Comments or Corrections? Bentley's Technical Support Group requests that you please submit any comments you have on this Wiki article to the "Comments" area below. THANK YOU!
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