New Features in COMPRESS 2024 Build 8400
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COMPRESS


Hightlighted Features


  • General

    • ASME VIII, Division 1 2023 Edition

      (1) The materials database now includes all ASME Section II, Part D 2023 Edition data for both Customary and Metric editions. This includes all materials from Tables 1A, 1B and 3, and any changes to Table U (tensile strength), Table Y-1 (yield strength), and the physical properties tables.

      (2) Table U-3

      • ASME B16.5 and B16.47 flanges are now updated to use the 2020 editions.
      • A deficiency is issued in the Deficiencies Summary if a flange or flanged fitting is used that relies on and meets the requirements of a B16 Case.

      (3) Minimum Test Temperature

      • UG-99(h): The hydrostatic test temperature is now calculated per vessel component, and the minimum test temperature is reported in the Hydrostatic Test report.
      • UG-100(c): The pneumatic test temperature is now calculated per vessel component, and the minimum test temperature is reported in the Pneumatic Test report.

      (4) SA/IS 2062 Grades E250A, E250BR, E250 B0, and E250C

      • Vessels constructed from these plate materials now issue deficiencies in the Deficiencies Summary if the requirements of UCS-6(b) are not met.
      • UCS-66: Added to impact test exemption curve A supplied in the normalized rolling condition. Note that normalized rolling condition is not considered equivalent to normalizing.

      (5) UCS-56: Wrought or forged butt weld fittings no longer require postweld heat treatment if the conditions in general notes (d)(2), (b)(1), and (b)(1) are met in Table UCS-56-2, Table UCS-56-3, and Table UCS-56-4, respectively.

      (6) UHA-51(d): SA-453 660 A&B bolts are no longer required to be impact tested at an MDMT of -320°F (-196°C) and warmer.

      (7) UCL-27: The impact test temperature is now determined for integrally clad materials, regardless if design calculations take credit for the cladding thickness, and reported directly following the base metal MDMT calculation. The impact test exemption temperature of the clad component is reported in the Pressure Summary as the warmer of the two values determined for the base material and the integral cladding material.

      (8) Table UHT-56: SA-353 and SA-553 Type 1 materials with nominal thickness over 2 in. (50 mm) no longer require postweld heat treatment, and a warning is issued in the Deficiencies Summary to review the requirements in UHT-82(k).

      (9) U-Forms: PRT is replaced with PRT VIII-1 in the Certificate of Shop/Field Compliance sections of forms U-2 and U-2A. [76452]

  • Lift Lugs

    • Round standard lugs
      Round standard lugs may now be specified in the Lifting Lugs dialog and are available in the Solid Model and XML. The Lug Thickness - Tensile Stress calculation in the Lifting Lug component report accounts for the rounded lug cross section at the pin using the lug centerline length, Lcl. [61648]

    • Subassembly lift lugs
      Lift lugs may now be designed for horizontal and vertical flanged vessel subassemblies. Subassembly lugs may be specified in the Lifting Lugs dialog. A Subassembly button provides a list of components included in the subassembly with an Include bundle weight in subassembly lift option switch available for heat exchangers. Note any load specified with the Include in lift weight option switch located within the subassembly boundary will also be included in the subassembly consideration. [57482]

Additional Features


  • 3D View

    • Zoom on mouse cursor location
      The option to have the 3D view zoom on the mouse cursor location is now available and is available in Set Mode Options > Environment > Mouse Wheel Zooms on Cursor. [76025]

  • Appendix 13

    • Air cooled heat exchanger tubes through short side
      Air cooled heat exchanger tubes can now extend through the header short side. Previously, the inside width input was forced to be less than or equal to the inside height, causing the tubes to always extend through the header long side. [66775]

  • Hydrostatic Test Report

    • Chamber name specification
      Specific chamber names on multi-chamber vessels are now included in the Deficiencies Summary when warnings are issued for hydrostatic or pneumatic testing. [76334]

  • Hydrotest

    • User defined hydrostatic or pneumatic test specification
      User defined hydrostatic or pneumatic tests may now be specified for shop and field test in Set Mode > Defaults > Testing. [76398]

  • Lift Lugs

    • Lift lugs now available on covers, flanges, and tubesheets
      Lift lugs may now be placed on welded covers, bolted covers, dished covers, flanges, and tubesheets in the circumferential orientation for horizontal vessels. Lift lugs may also be placed radially on the face of a welded cover or bolted cover for vertical vessels. Note that local stresses are not considered for lugs on this component type. [75972]

  • Material

    • Note 1B:G9 external pressure chart
      Materials with note number 1B:G9 may now be used up to the maximum temperature for external pressure. NFC-6 is used up to and including 300°F (150°C), and NFC-3 curve 600°F (315°F) is used above 300°F (150°C) up to and including 400°F (200°C). Previously, the maximum temperature for external pressure that could be entered was 300°F (150°C). [7259]

  • Nozzles

    • ASME B16.11-2021
      ASME B16.11-2021 is now used in accordance with Table U-3. Changes for ASME B16.11-2021 affect couplets only and are as follows:
      • All couplets: Weld Ring Diameter, N, values are updated.
      • NPS 1/4 Class 3000 Threaded Couplet: Outside Diameter, E, is now changed to 0.938" from 0.928" causing thickness and inner diameter value changes.
      • Socket-welding couplets: Weld Ring Length, Q, is now rounded from 0.375" to 0.38" which will affect overall projection by decreasing by 0.005".

      These changes will affect all files with couplets created using any ASME Section VIII addenda. [76118]

  • Revisions History

    • Revision history dialog update
      The Revision History dialog is now updated to a simpler more user-friendly format with the added ability to increment the revision by numbers, letters, or a mix of both. [8207]

  • Support Skirts

    • Option now available to lap weld support skirt to shell in Quick Design
      An option is now available to Initialize Skirt Diameter to be Lap Welded to the Cylindrical Portion of the Shell in the Set Mode Options > Defaults > Skirts dialog and Quick Design overlay window. If active and using Quick Design, this option attaches the support skirt to the straight flange of the bottom head or the cylinder attached to the bottom head if there is no straight flange on the head. [76346]

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Heat Exchanger


  • Expansion Joints

    • Flanged and flued expansion joint FEA analysis per TEMA 10th Edition
      Flanged and flued expansion joint FEA analysis per the TEMA 10th Edition is now available. This analysis calculates accurate spring rates and the resulting stresses due to displacement for each design condition and load case. The FEA analysis is performed when the TEMA 10th Edition is selected and User Defined Expansion Joint Spring Rates (Sj) are not defined on the Tubesheet Design Conditions page of the Heat Exchanger dialog. [76229]

    • Identical flexible shell elements
      All elements of a flanged and flued expansion joint must have identical geometry and be constructed with the same material. This change affects all existing files as well as the Expansion Joint page in the Heat Exchanger dialog.

      In existing files, each element's geometry and material are changed to match the first element's geometry and materials. Inner and outer cylinders will also have their materials changed to match the first element's material, if not already the same, and have all inner and outer cylinders match the geometry of the first cylinder of each type.

      The Expansion Joint page of the Heat Exchanger dialog now only has a singular input for each geometric property of the expansion joint as a whole, the flexible shell elements, inner and outer cylinder, and the expansion joint's material that dictates these properties for each of the elements in the expansion joint.

      The centerline of the ends of the first and last elements of the flanged and flued expansion joint connected to the shell of the heat exchanger now match the centerline of the shell to which it is attached. Previously, the inner diameters of the elements and the shell would match. [57801]

  • Heat Exchanger

    • ASME Section VIII, Division 1&2 2023 Edition

      (1) Part UHX design requirements

      • Section VIII, Division 2, Part 4.18 rules are now used in lieu of those previously required in UHX, as listed in Table UHX-1.1.
      • Table UHX-1.2 lists Division 1 design requirements to continue using in lieu of the corresponding Division 2 design requirements referenced in Part 4.18.

      (2) Mandatory Appendix 26 design requirements

      • Section VIII, Division 2, Part 4.19 rules are now used in lieu of those previously required in Appendix 26, as listed in Table 26-1.1.
      • The design for instability due to external pressure are performed according to the rules of UG-28 in lieu of 4.4 referenced in 4.19.5.6(b).

      (3) Integral concentric conical channels are now available in configurations a, e, and f for U-Tube, Fixed, and Floating tubesheet heat exchangers

      • Reinforcement calculations at the large end of the cone per Appendix 1-5 (Part 4.3.11) and Appendix 1-8 (Part 4.4.13) are not performed.
      • The minimum cone length is calculated per Figure 4.18.15, Note (4).

      (4) The equations for δs and λs in Parts 4.18.7.4 Step 4, 4.18.8.4 Step 2, and 4.18.9.4 Step 2 now include an extra shell thickness term to consider the mean shell diameter rather than the inner shell diameter. Similarly, the equations for δc and λc include an extra channel thickness term to consider the mean channel diameter rather than the inner channel diameter.

      (5) Tube-to-Tubesheet Welds

      • The rules for establishing allowable loads for tube-to-tubesheet joints by factors from nonmandatory Appendix A have been incorporated into Part UW. The calculation methods now available on the Tube-to-Tubesheet page of the Heat Exchanger dialog are UW-20.3 Joint Strength by Calculation and UW-20.4 Joint Strength by Factors
      • A deficiency is issued in the Deficiencies Summary per UW-20.1.1(c) or Part 4.21.1.1(c) when a back-face welded joint is selected.
      • A tube load factor, k, is now included in the maximum axial load equations, set equal to 1.0 or 2.0 depending on if the axial forces are pressure induced, thermally induced, or a combination of both.
      • The factor fr(h) replaced fr(b) in determining the maximum axial load for Table UW-20.1 joint types f, g, and h. A deficiency is issued in the Deficiencies Summary if fr(h) is not equal to 0.70 when established by shear load test per UW-20.4.4, or not equal to 0.50 without shear load test.

      (6) Flexible shell element expansion joints with extended straight flanges within the limits of Llimit no longer report code calculations. [76319]

    • Quick Create using Specification Sheet Data pane
      Heat exchangers can now be created only using the Specification Sheet Data pane. After inputting the design information in the Design Requirements tab of the Specification Sheet Data pane, selecting the Quick Create button will create a simple heat exchanger using the information provided in the pane.

      If this creation method is used, Tube Quantity and Shell Length are controlled by the Quick Create method. Tube Quantity is maximized due to the values input for heat exchanger inner diameter, tube outer diameter, and tube pitch, and Shell Length is set based on the heat exchanger TEMA type and the tube length. These values can be edited in the Heat Exchanger dialog after creation.

      The Quick Create creation method is not intended to replace detailed heat exchanger design, but allows for a heat exchanger file to be saved in the design process without having to complete the Heat Exchanger dialog. The Heat Exchanger dialog should still be opened to edit the heat exchanger design information. Traditional heat exchanger design through the Heat Exchanger dialog is still available as in previous builds. [75539]

  • Heat Exchanger

    • Port cylinder material
      The port cylinder material may now be different than the shell material for kettle type U-Tube and floating heat exchangers. [51123]

  • Heat Exchanger Dialog

    • U-Tube reducer channel
      Reducer is now an available front channel type on the Channel page. [75951]

  • TEMA

    • Division 2 TEMA 10th Edition
      TEMA 10th Edition is now permitted as a calculation method for heat exchangers designed using Appendix 46 or Division 2 rules. [76283]

  • Tubesheets

    • TEMA Table D-5 rear floating tubesheet
      A deficiency is now issued in the Deficiencies Summary for the rear tubesheet extended as a flange if the bolt spacing exceeds the maximum, Bsmax. Additionally, a warning is issued if the wrench clearance or edge distance is not sufficient. [75839]

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Division 2 2007 Edition and Newer


  • General

    • ASME VIII, Division 2 2023 Edition

      (1) The materials database now includes all ASME Section II, Part D 2023 Edition data for both Customary and Metric editions. This includes all materials from Tables 2A, 2B, 3, 5A, and 5B, and any changes to Table U (tensile strength), Table Y-1 (yield strength), and the physical properties tables.

      (2) Table 1.1

      • ASME B16.5 and B16.47 flanges are now updated to use the 2020 editions.
      • A deficiency is issued in the Deficiencies Summary if a flange or flanged fitting is used that relies on and meets the requirements of a B16 Case.

      (3) Form A-2: PRT is replaced with PRT VIII-2 in the Certificate of Shop Compliance section.

      (4) Table 3.1: SA/EN 10028-2 plates and SA/EN 10222-2 forgings are now available for use only in Division 2, Class 2 vessels.

      (5) Table 3.5: SA-453 660 A&B bolts are no longer required to be impact tested at an MDMT of -196°C (-320°F) and warmer.

      (6) Table 3-D.1: Martensitic stainless steels are now assigned to the same stress-strain curve parameters as ferritic steels. Additionally, SA-564 type 630, SA-693 type 630, and SA-705 type 630 stainless steels now use the stress-strain curve parameters for precipitation hardening, nickel-based austenitic alloys.

      (7) Part 4.3.6: A deficiency is no longer issued in the Deficiencies Summary for dished covers with L/t less than 20.

      (8) Table 4.16.7: hp is now equal to h for loose-type flanges with hub dimensions g1 equal to g0.

      (9) Part 5.5.2.4: Fatigue analysis screening, method B, is now based on the damage associated with all pressure, temperature, and mechanical load cycles acting on a component. The sum of damage from all cycles must be less than or equal to 1 to pass the screening. This method matches fatigue screening method C of API 579-1/ASME FFS-1 Part 14.

      (10) Part 6.4.2.2(e): Wrought or forged butt weld fittings no longer require postweld heat treatment if the conditions in (c)(2), (b)(1), and (a)(1) are met in Table 6.9, Table 6.10, and Table 6.11, respectively.

      (11) Part 8.2.4: The test temperature is now calculated per vessel component, and the minimum test temperature is reported in the Hydrostatic Test report or Pneumatic Test report, as applicable. [76453]