Why COMPRESS Includes WRC 107, WRC 297 and FEA

ASME® VIII-1 provides design rules for nozzles subject to pressure. It also requires consideration of external loads such as those imposed by attached piping. The Code does not provide rules for external loads so the methods from WRC 107, WRC 297 and more recently WRC 537 are usually used. An often overlooked issue is that nozzle and attachment sizes frequently fall outside the geometric limits of the WRC 107, WRC 297 and WRC 537 methods. In general, our pressure vessel FEA can be used to meet the requirements of U-2(g) when nozzles and attachments exceed the limitations of WRC 107 \ WRC 297 \ WRC 537, nozzle fatigue analysis is required or more accurate results are needed.

  • Nozzles on heads where the geometry is beyond the limits of shallow shell theory are beyond the scope of the WRC methods. See WRC 537, Appendix A.2 for more details.

  • The TEMA 9th Ed. requires FEA when calculating flexible shell element (FSE) spring rates and stresses. Our heat exchanger calculation includes FSE FEA and performs this analysis automatically.

  • The WRC methods do not cover nozzles on blind flanges or flat heads. API 660 heat exchangers with nozzles on bolted covers can, however, be handled with our built-in FEA.

  • Codeware’s FEA implementation is more accurate and usually less conservative than the methods of WRC 107, WRC 297 or WRC 537. Our FEA engine has been licensed from Paulin Research Group (PRG), a leading authority in the field of pressure vessel and piping stress analysis. PRG’s NozzlePro FEA analysis has been used successfully by industry for decades and is unique in that it has been verified by extensive burst and strain gauge tests.

  • FEA based nozzle fatigue complying with ASME VIII-2 Part 5 design by analysis is included.

  • COMPRESS and INSPECT now provide additional pressure vessel FEA functionality including FEA of clips, lugs, support saddles and structural attachments.

  • Performing FEA with Codeware products is simple. Details input are automatically transferred to the FEA engine and the FEA results are included in the calculation report.

  • COMPRESS and INSPECT include FEA as standard equipment. Competitors either charge extra for this feature or do not offer it at all.

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Nozzle Finite Element Analysis (FEA) is included at no additional charge
COMPRESS and INSPECT feature pressure vessel FEA which includes nozzle fatigue analysis

Featured Pressure Vessel Design Capabilities

Nozzles Nozzles in COMPRESS Nozzles Simplify the detailing of nozzle attachments with flexible and intuitive nozzle design capabilities. Quick Design Quick Design Speed up the process of pressure vessel modeling. Pressure vessel quick design mode in COMPRESS Productivity Productivity Software packages like COMPRESS exist to increase productivity and save Engineering hours. Software packages like COMPRESS exist to increase productivity and save engineering hours Heat Exchanger Heat Exchanger Perform ASME UHX and TEMA calculations and transfers these designs to your estimating and drafting departments. Heat Exchanger design in COMPRESS Div 2 Division II Many companies use the alternative rules of Division 2 because of the cost savings, versus Division 1. Division 2 Class 1 and 2 in COMPRESS MDMT MDMT Rules of UCS-66 The rules of UCS-66 guard against vessel failure by brittle fracture, a low probability high consequence event. Minimum Design Metal Temperature (MDMT) in INSPECT FEA FEA Pressure vessel FEA is more accurate than the methods of WRC-107, WRC-297 or WRC-537. FEA nozzle fatigue analysis in COMPRESS Jacketed Vessels Jacketed Vessels Design both conventional and half pipe jacketed vessels as a standard feature in COMPRESS. Jacketed Vessels in COMPRESS - Type 1 and 2 Vessel Wizard Vessel Wizard The Vessel Wizard speeds pressure vessel design by creating complete pressure vessel models with minimal input. COMPRESS vessel wizard Coster COSTER Import files from COMPRESS and create user customizable pressure vessel cost estimates in spreadsheet format. Generate pressure vessel cost estimates in Excel spreadhseets Flange Flange Wizard Create optimized Appendix 2 (custom or body) flange designs with minimal time and effort. Create optimized Appendix 2 (custom or body) flange designs with the flange wizard in COMPRESS Weld Seam Weld Seams Designers can visually confirm good practices such as staggered longitudinal seams. Pressure Vessel Weld Seams Lifting Rigging Lifting & Rigging Use an accurate weight, the correct center of gravity, and apply the actual section properties. Lifting and Rigging Analysis 3D CAD Modeling + Drawings The Codeware Interface includes Drafter 3D, a feature that auto-generates 2D pressure vessel drawings. Export pressure vessels into 3D CAD applications such as SOLIDWORKS and Autodesk Inventor Related Codes Related Codes COMPRESS implements a wide range of related engineering methods, codes and standards. COMPRESS and INSPECT implement a wide range of related engineering methods, codes, and standards Design Mode Design Mode Save time by reducing the trial and error iterations that would otherwise be required when designing pressure vessels. In Design Mode, select thicknesses, sizes and ratings to meed code requirements Rating Mode Rating (Analysis) Mode The COMPRESS Rating Mode takes your design and determines the vessel’s MAWP, MAEP and MDMT. Calculate MAWP and minimum thickness in rating input mode Hydrotest Hydrotest Performing hydrotest stress calculations in the design stage prevents equipment damage during hydrotesting. Hydrostatic Test Stress Calculations Hillside Hillside Nozzle COMPRESS saves time by calculating chord openings and governing planes of reinforcement automatically. Hillside Nozzle ASME Codes ASME Editions Older ASME Codes are retained in all COMPRESS releases so you can always use the latest software. 2019 ASME Code edition in COMPRESS NLL Automatic Liquid Levels COMPRESS eliminates the need to manually calculate each vessel component’s liquid static head. COMPRESS automatic liquid level feature saves time and reduces errors Loads Global External Loads The Loads Menu allows designers to easily consider global external loads when sizing pressure vessel supports. Global external loads on pressure vessel supports in COMPRESS Clips and Lugs Clips and Lugs Designers can quickly include the mechanical effects of pressure vessel internals and attachments in their designs. Pressure vessel attachments in COMPRESS include platforms, ladders, insulation, piping, clips, and lugs Stacked Stacked Vessels Certain industrial processes require pressure vessels with multiple chambers operating under different design conditions. Multiple pressure chamber stacked vessel design in COMPRESS CC 2695 Appendix 46 Produce more economical Div 1 pressure vessel designs with increased accuracy from the Div 2 design by rule equations. Code Case 2695, now known as ASME VIII Appendix 46 Data Reports Manufacturer's Data Reports Simplify the creation, submission and management of ASME Manufacturer’s Data Reports and NBIC Repair and Alteration Forms. Forms Default Settings in COMPRESS Skirt Openings Support Skirt Openings Specify piping connections to vertical vessels that require additional piping and openings cut out of the support skirt. Skirt Opening in COMPRESS Foundation Loads Foundation Loads Summary Break down the loads for the specified vessel operating conditions including weight, wind, seismic, and vortex shedding. Help pressure vessel designers provide loadings to their civil and structural engineering team members using Pressure Vessel Foundation Loads Summaries in COMPRESS UG 80 and 81 UG-80 and UG-81 COMPRESS automatically provides out-of-roundness tolerances that must be maintained during pressure vessel fabrication. API 579-1 Part 8 Out of Roundness
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