New Features in COMPRESS 2023 Build 8300
plus 1

COMPRESS


Hightlighted Features


  • ASME B16.9 Tees

    • ASME B16.9 Tees available as main vessel components
      ASME B16.9 Tees are now available as main vessel components and may be added by selecting the B16.9 tee icon located on the Standard Components toolbar. In addition to straight tees being available, reducing outlet tees may be specified on the second page of the B16.9 Tee dialog using the Size dropdown. Tees are calculated as straight seamless pipe per UG-44 and do not permit attachments such as supports, clips, rings, nozzles, jackets, etc. Standard components as well as heads, covers, and custom flanges may be attached to the branch connection. [69717]

  • ASME Database

    • ASME Materials database search improved
      The ASME Materials dialog may be accessed using the Materials > ASME Materials menu item or by selecting the Add Material... option under the Material dropdown in component dialogs. The Search for input functionality is expanded to include additional material properties in the available search criteria. In addition, multiple search criteria may be used concurrently and the cumulative searches are displayed in the Current Filter result. Previously, only the Spec. No was included in the search.

      Other ASME Materials dialog improvements include:
      • Column widths are retained when the dialog is closed and reopened.
      • Double-clicking column separators increases column width to the largest visible entry in the column.
      • Material property column widths may be reset to the default widths using the Reset Column Widths option included in the Display Options dialog.
      • Grid lines may be added and removed within the material table by using the Show Grid Lines option included in the Display Options dialog.
      • Materials may be filtered by product form by using the Product Forms option included in the Display Options dialog.
      • The Show Allowable Stresses option is now in the Display Options dialog.
      • The Show notes option is now in the Display Options dialog.
      • Selecting materials no longer automatically adds them to the component material drop-down list; instead, the Use option switch must be activated.

      [73292]

  • Cladding

    • UCL corrosion resistant integral cladding and weld metal overlay cladding
      Cladding is now available per UCL-23(b) for the following components:
      • Cylinders
      • Formed Heads
      • Transitions
      • Flat Heads and Bolted Covers
      • Nozzles and Nozzle Connections
      • B16.5/16.47 Flanges
      • Appendix 2 Flanges

      Cladding is now available per UCL-23(c) for the following components:
      • Cylinders
      • Formed Heads

      At this time, cladding cannot be added to jacketed vessels, heat exchangers, or Appendix 46 vessels.

      Cladding may be added to the vessel by specifying the cladded thickness in the Design Requirements pane. Thickness Credit per UCL-23(c) and the Fully Corrode Cladding calculation options may also be selected.

      Cladding may be added on a component basis in the Cladding / Lining / Insulation dialog located under the Attach dropdown menu item. This dialog can also be accessed using the Cladding / Lining / Insulation button found in the following component dialogs: Cylinders, formed heads, flat heads, bolted covers, transitions, and Appendix 2 flanges. [983]

  • Fatigue Assessment

    • Fatigue Analysis Screenings per ASME VIII Division 2, 5.5.2.4, Method B are now available
      Fatigue analysis screenings are now available under the Codes > Fatigue Screening menu item for both Division 1 and Division 2 vessels using ASME VIII Division 2, 5.5.2.4, Method B. The fatigue analysis screening uses materials of construction, construction details, loading histogram, and smooth bar fatigue curve data to determine whether a fatigue analysis is required as part of the vessel design. [73289]

  • Jackets

    • Pipe caps now available as Type 2 jacket head type
      Vessels with a pipe cap as the bottom head closure may now include a Type 2 jacket with a pipe cap as the bottom head closure. [60241]

    • Reported maximum pressures for common components
      The MAWP reported in the Pressure Summary for common components in a given pressure chamber is now reduced by an amount equal to the external design pressure of the same component in the opposite pressure chamber. For example, if a jacketed vessel head's (vessel chamber) MAWP is calculated as 215.62 psi and the jacket chamber is designed for 15 psi external pressure, the vessel head now reports a MAWP of (215.62 - 15) = 200.62 psi. This reduction accounts for the eventuality where the jacket chamber is in vacuum and the vessel chamber is simultaneously fully pressurized to its rated MAWP. Additionally, the reported MAEP of common components is now limited to the component's external design pressure. [73764]

  • Nozzles

    • Code Case 3035 - Minimum Thickness of Standard Fittings
      Code Case 3035 is now available for standard fittings falling under UW-16(f)(3)(-a). With the code case enabled in the ASME Codes dialog, the minimum thickness for threaded and socket-welded couplings attached with a single fillet weld may be less than the minimum required per Table UW-16.1. The minimum thickness requirement for threaded couplings is now based on the dimensions specified in Table 1 CL 3000 Coupling Nominal Thickness found in the code case. In addition, the minimum thickness for socket-welded couplings is taken as the minimum thickness specified in B16.11 as Dimension, C. With the implementation of this code case, threaded coupling dimensions generally have been updated to be based off a standard pipe outer diameter. Previously, the respective B16.11 plug diameter was used for threaded couplings to determine the inner diameter and wall thickness. [73891]

    • Insert (Q) lip nozzles
      Welded connections per Figure UW-16.1 (f-1) and (f-4), and Table 4.2.13 Detail 1 and Detail 5, are now available for uniform thickness, long weld neck, and variable thickness nozzles. [5486]

  • Security Key

    • Self-Service feature
      The Self-Service feature allows users to manage their key servers, perform key updates, and access the support center for upgrades. Through the License Management dialog, users can modify most of the important aspects of their security key in an easy to use, one stop location. Notifications are given a new, simplified interface for users to quickly identify end-of-support and to take advantage of newly created quotes. [73852]

  • Verification Manual

    • ASME PTB-4-2021 Division 1 Example Problem Manual Updated
      The ASME Division 1 example problems located in the SampleProject folder in the Project pane have been updated to the latest ASME PTB-4-2021 Example Problem Manual. [74000]

    • Verification Manual updated with ASME PTB-4-2021 Example Problems
      The Verification Manual located under the Help dropdown menu is now updated with the latest Division 1 example problems from the ASME PTB-4-2021 Example Problem Manual. Some example problems are new and some are updated from the previous edition of the manual.
      The following new example problems are now included in the sample project and verification manual:
      1. E4.7.2 Spherically Dished Cover - Appendix 46
      2. E4.5.7 - Piping Load Evaluation of ASME B16.5 Nozzle Flange - Div 1
      3. E4.3.8 - Conical Transitions with a Knuckle - Appendix 46
      4. E4.18.11 - Fixed Tubesheet Kettle Exchanger, Configuration a, Tubesheet Integral with Shell&Channel
      5. E4.20.2.f - Partial Strength Welds UW-20(f) - Div 1 - Rating Mode
      6. E4.20.2.e - Partial Strength Welds UW-20(e) - Div 1
      7. E4.20.1.f - Full Strength Welds UW-20(f) - Div 1 - Rating Mode

      The following existing example problems are now updated to match the new example manual:
      1. E4.3.6 - Combined Loadings and Allowable Stresses Cylindrical Shell - Appendix 46
      2. E4.4.6 - Combined Loadings and Allowable Compressive Stresses - Div 2
      3. E4.7.1 - Spherically Dished Cover - Div 1
      4. E4.15.1 - Horizontal Vessel with Zick's Analysis - Appendix 46
      5. E4.15.2 - Vertical Vessel, Skirt Design - Appendix 46
      6. E4.18.3 - UHX 20.1.3 U-Tube Tubesheet Gasketed with Shell and Channel
      7. E4.18.4 - UHX 20.1.4 U-Tube Tubesheet Gasketed with Shell and Integral with Channel, Extended as Flange
      8. E4.18.5 - UHX 20.2.1 Fixed Tubesheet (b) Integral Shell, Extended Flange Gasketed Channel Side
      9. E4.18.7 - UHX 20.2.3 Fixed Tubesheet Exchanger (a)
      10. E4.18.8 - UHX 20.3.1 Stationary Gasketed Shell and Channel, Floating Gasketed, Not a Flange
      11. E4.18.9 - UHX 20.3.2 Stationary Tubesheet Gasketed with Shell and Channel, Floating Tubesheet Integral
      12. E4.18.10 - UHX 20.3.3 Stationary Tubesheet Gasketed with Shell and Channel, Floating Tubesheet Internally Sealed
      13. E4.19.2 - Toroidal Bellows Expansion Joint and Fatigue Evaluation - Div 1
      [73885]

  • Wind and Seismic

    • ASCE 7-22 Seismic, Wind, and Tornado now available
      Wind, seismic, and new tornado loading calculations according to ASCE 7-22 are now available. Notable changes in the seismic calculations:
      • The Seismic Codes dialog now includes new site classes BC, CD, DE, and Default. It also includes new inputs for spectral response acceleration parameters SM1 and SMS.
      • Short and long-period site coefficients Fa and Fv were removed.
      • Under the ASCE 7-22 Building Mounted option, new inputs include component resonance ductility factor CAR, structure ductility reduction factor Rmu, and component strength factor Rpo.
      • Amplification factor ap and response modification factor Rp from 7-16 were removed.
      • Seismic design force Fp formula was updated.

      Notable changes in the wind calculations:

      • The Velocity pressure exposure coefficient Kz formula changed.
      • Design for tornado loading is now required for structures that are located within a specified tornado-prone region as shown in ASCE 7 Figure 32.1-1.
      • The option to Consider Tornado Loading is found in the Wind Code dialog and should be activated for such structures. Additional Tornado related inputs will appear when active.
      • COMPRESS will investigate certain exceptions based on tornado velocity VT and Risk Category as specified in Figure 32.1-2 which may exempt structures from tornado load design requirements.
      • Tornado loading may be manually applied in all cases by activating the Force Tornado Calculations option switch.
      • ASCE 7 Chapter 32 Tornado calculations are similar to the wind requirements from Chapters 26 and 29, with certain tornado-specific values substituted in, and some input values carried over from the wind code. Per Paragraph 32.11.1, the tornado gust-effect factor GT is taken as 0.85.
      • When considered and applied, tornado loading is presented in COMPRESS reports as an additional design load in relevant component and summary reports.

      In addition, Wind and Seismic dialogs now include a link to the ASCE 7 Hazard Tool website, which provides necessary location-specific information.

      [72147]

Additional Features


  • Advanced Reporting

    • Advanced Reporting option switch now available in report index pane
      The report index pane now includes an option switch to turn the advanced reporting on or off. [73999]

  • Component Tree Pane

    • Smooth view rotate option now available
      When a component is selected in the Component Tree pane, the model now rotates and/or pans to display the selected component. For example, if the selected nozzle is on the opposite side of the model, the model will rotate to the angular location of the nozzle. This option can be disabled by selecting the magnifying glass icon at the top of the pane. [74218]

  • Graphical User Interface

    • File browser dialog updated
      The browser dialog is updated inside of the following dialogs and toolbars:
      • The Select Forms Database option inside of the Manage Forms dialog.
      • The Move Forms Database option inside of the Manage Forms dialog.
      • The Browse... option inside of the Forms Settings and Defaults dialog.
      • The Export Project and Files > To Folder option inside of the Project toolbar.
      [73708]

  • Legs

    • Angular position reported
      The leg positions and force attack angle in the legs report now include the angular position set in the Support Legs dialog. Previously, the force attack angle and first leg position always started at 0 degrees. [6455]

  • Lift Lugs

    • Significant deformation warning deficiency added for ear lugs, trunnions, and tail lugs
      A deficiency is now reported in the Deficiency Summary warning that significant deformation is possible when a lift calculation is performed and the vessel model is missing the top and/or bottom head. This check applies to ear lugs, trunnions, and tail lugs. [74445]

  • Nozzles

    • Blank nozzle report message for vessels with zero internal or external pressure
      Vessels with zero internal or external pressure applied now issue a message for blank nozzle reports indicating that the vessel needs to be under pressure for calculations to be performed. [61644]

  • Support Lugs

    • Angular position reported
      The lug positions and attack angle in the lugs report now include the angular position set in the Support Lugs / Ring Girder Support dialog. Previously, the attack angle and first lug position always started at 0 degrees. [6263]

  • Wind and Seismic

    • ASCE 7-16 Supplement No. 3
      ASCE published a new Supplement No. 3 to ASCE 7-16 in November 2021. It includes revisions to Section 11.4.8 Site-specific ground motion procedures and Tables 11.4-1 and 11.4-2. COMPRESS now provides an option to use Supplement No. 3 for seismic calculations per ASCE 7-16, IBC 2018, and IBC 2021 code. The option switch can be found in the Seismic Codes dialog when S1 ≥ 20% and Site Class D is specified. [72146]

plus 2

Heat Exchanger


  • Expansion Joints

    • Nozzles allowed in flexbile shell element expansion joints
      Nozzles may now be attached to Appendix 5 (Part 4.20) flexible shell element expansion joints. The minimum length of straight flanges and outer shell elements are enforced per Figure 5-2 (Figure 4.20.1). The shell side vent and drain specified in the Nozzles page of the Heat Exchanger Wizard automatically adds them to the expansion joint. [50218]

  • Tube-To-Tubesheet Joints

    • U-Tube heat exchanger tube-to-tubesheet joint analysis
      Tube-to-tubesheet joint loads are now available for U-tube heat exchangers [62120]

  • Tubesheets

    • Tubesheet MDMT stress ratio
      The tubesheet rated MDMT now considers the stress ratio, determined by chamber MAWP over tubesheet MAP based on the larger ratio from the governing shell side and tube side design conditions. ASME tubesheet reports now include a material toughness table. [50766]

    • Tubesheet steps and confined gasket facings available for ASME B16.5/16.47 flanges
      Tubeside and shellside steps are now available for tubesheets with B16.5/16.47 flanges. Small and large female facing may also be specified for B16.5 flanges through the Tubesheet Connection Details dialog on the Tube Side Flange and Shell Side Flange tabs with the Confined gasket option switch active. [52305]

  • HTRI

    • TEMA 10th now avialable in import preferences
      TEMA 10th Edition may now be selected in the General > TEMA Edition dropdown option inside of the HTRI Import Preferences dialog. [74183]

  • TEMA

    • TEMA RCB-1.1.1(3) check
      The TEMA RCB-1.1.1(3) check is no longer applied to test conditions. [74334]

  • Tubes and Shell

    • Radius to outermost tube center input now available for TEMA only exchangers
      The Radius to Outermost Tube Center input is now available in the Tubes and Shell page of the Heat Exchanger dialog for heat exchangers specified as TEMA only. Although this input does not affect any TEMA calculations, the radius to outermost tube center is used in determining geometry used in the Tubesheet Connection Details dialog and in tubesheet geometry checks. [73857]

    • Radius to outermost tube center sanity check
      A sanity check ensures that the Radius to Outermost Tube Center input inside of the Tubes and Shell page of the Heat Exchanger Dialog is less than one-half of the shell inner diameter minus one-half of the tube outer diameter. [73881]

  • XML

    • Include <passPartition> node in the XML export when doing a tube bundle replacement calculation
      The pass partition data is now included in the XML and XML3D export file when the heat exchanger model is for a tube bundle replacement. [73884]

plus 3

Division 2 2007 Edition and Newer


  • Fatigue Assessment

    • Fatigue Analysis Screenings per ASME VIII Division 2, 5.5.2.4, Method B are now available
      Fatigue analysis screenings are now available under the Codes > Fatigue Screening menu item for both Division 1 and Division 2 vessels using ASME VIII Division 2, 5.5.2.4, Method B. The fatigue analysis screening uses materials of construction, construction details, loading histogram, and smooth bar fatigue curve data to determine whether a fatigue analysis is required as part of the vessel design. [73289]

  • Jackets

    • Support skirts added to structural discontinuity check
      Support skirts located on jackets are now considered as a gross structural discontinuity in the Part 4.5.13.1 spacing requirements for nozzles check. [73992]