New Features in COMPRESS 2018 Build 7800
plus 1

COMPRESS

Highlighted Features

Additional Features

Highlighted Features

  • Formed Heads

    • Automatically change head type without deleting attachments
      Formed heads may be changed to a different formed head type by using the Change Head Type button located in formed head dialogs. This allows for all formed head attachments, including nozzles, to be preserved. [63090]

  • General

    • ASME Section VIII, Division 1 2017 Edition
      (1) The materials database now includes all ASME Section II, Part D 2017 Edition data for both Customary and Metric editions. This includes all materials from Tables 1A, 1B and 3. In addition, Table U (tensile strength), Table Y-1 (yield strength), Tables TE-1 through TE-5 (thermal expansion coefficients), Tables TM-1 through TM-5 (elastic moduli) and all vacuum charts are updated.

      (2) UG-36(b)(1): Metric size restrictions modified for reinforced openings designed with UG-36 through UG-43.

      (3) UG-36 and Appendix 1-9: The alternative rules for reinforcement of openings under internal pressure are no longer permitted.

      (4) UG-36 and Appendix 1-10: The alternative method for design of reinforcement for openings in cylindrical and conical shells under internal pressure is no longer permitted. Note that Code Case 2695 may still be used. Code Case 2695 uses the Division 2 nozzle reinforcement rules. The Appendix 1-10 rules were an early revision of the Division 2 nozzle reinforcement rules.

      (5) UW-9(c)(2): A deficiency is now reported if the nozzle neck length is less than one and half times the nozzle neck thickness for a butt welded variable thickness nozzle with a tapered transition angle less than 71.5° .

      (6) Figure UCS-66 and UCS-66M: SA-299 added to Curve B if not normalized and Curve D if normalized.

      (7) Appendix 1-1: Subparagraph notations revised.

      (8) Appendix 1-2: Subparagraph notations revised.

      (9) Appendix 1-8: Cylinder length factor revised in 1-8(b)(3) from 1.4 to 2.0.

      (10) Forms U-1, U-1A, U-2A, U-3A, U-4, and U-5 revised. [62805]

  • Nozzles

    • Code Case 2695 now available on an individual nozzle basis
      Code Case 2695 may now be activated for individual nozzles, while the parent component and other nozzles located on the parent component remain under Division 1 design. To use this feature, activate the Use Code Case 2695 (Use Div 2 Rules) button in the Nozzle Calculation Options dialog for the selected nozzle. Parent components that are designed per Code Case 2695 still require all attached nozzles to be designed per Code Case 2695. [63218]

  • Wind and Seismic

    • ASCE 7-16 now available
      Notable changes include updates to the Fa and Fv values in paragraph 11.4.4, as well as the addition of the Ground Elevation Factor, Ke, in paragraph 29.6. [57698]

    • IBC 2018 now available
      Notable changes include updates to the Fa and Fv values in paragraph 1613.2.3. [63609]



Additional Features

  • ASME/ANSI Flanges

    • Gasket diameter warning
      A warning is now provided in the Select ASME B16.5/16.47 dialog and reported in the Deficiencies Summary when the gasket diameters extend beyond the raised face inner diameter or outer diameter. [63682]

  • Deficiencies Summary

    • Warning message for high pressure vessels
      A warning message is now reported in the Deficiencies Summary for vessels that exceed the suggested maximum pressure for Division 1 and Division 2 vessels (3,000 psi/20 MPa and 10,000 psi/68.95 MPa, respectively). [63328]

  • FEA-Nozzles

    • Nozzle FEA 500 file limit
      The nozzle FEA file repository no longer has a 500 file limit. Previously, if the repository reached 500 files, FEA could not be performed. [63624]

  • Forms

    • ASME U-1A form employer name and locale fields
      ASME U-1A form's employer name and locale are now in separate fields. If a U-1A form with the same employer name and locale is opened, an avoidable message states that the form should be updated. [63701]

  • General

    • Opening component dialogs from the 3D view
      Component dialogs may now be opened directly from the 3D view by selecting the component and pressing enter. [62664]

  • Insulation

    • Insulation and Lining dialog improvements
      The Insulation and Lining dialogs have merged into a single tabular dialog with an improved interface to quickly and seamlessly add lining and or insulation to vessel components. [63132]

  • Nozzles

    • Heavy barrel length for standard stub ends
      The heavy barrel length can now be modified for standard variable thickness stub end nozzles. [63412]

    • Material from Copy Existing Nozzle button
      The Copy Existing Nozzle button in the Nozzle dialog now copies the material from the original nozzle. [63630]

    • Variable thickness set on hub angle deficiency
      Variable thickness set on nozzles now report a deficiency in the Deficiencies Summary when the hub angle is less than 30° as required by Figure UW-16.1 sketch (n). [63470]

  • Printing

    • Seismic Code for Buckling Check
      The Seismic Code for Buckling Check report is now available in the print list inside of the Customize PDF Report dialog. [63800]

  • Revisions History

    • Editing while in report view
      The File -> Revisions option is now available in the report view. This option was unintentionally removed in Build 7710. [63407]

  • Saddles

    • Saddle wear plate warnings
      Warnings will now be reported in the Deficiencies Summary if the saddle wear plate does not meet the minimum width and/or contact angle requirements. [63181]

  • Set Mode Options F7

    • Default vessel diameter input
      The Vessel diameter input located in in Set Mode Options -> Defaults -> General now applies to formed heads. [63393]

    • Do not perform ASCE 15.7.10.5 Skirt Buckling Check option
      An option to deactivate the ASCE 15.7.10.5 Skirt Buckling Check is now available in the Set Mode Options -> Calculations -> General 1 page. When the check is deactivated a warning is reported in the Deficiencies Summary to inform that a skirt buckling failure check must be performed per ASCE Section 15.7.10.5. The Seismic Code for Buckling Check report is still generated so that the loads may be used in an alternative analysis. [63745]

  • Solid Model

    • Jackets as an assembly
      The solid model for jacketed vessels now groups jacket components into an assembly. [63008]

  • Support Skirts

    • Slenderness factor for column buckling
      The slenderness factor for column buckling, λc, is now reported in the 4.4.12.2.b allowable axial compressive membrane stress table inside of support skirt reports when the ASCE 15.7.10.5 skirt buckling check is active. Previously, the slenderness factor was only reported in the 4.4.12.2.e allowable compressive stress for combination of uniform axial compression and hoop compression table, and it was not reported if it was outside of the permitted range. [63267]

  • XML

    • Nozzle identification number for jacket closure penetration members
      Jacket penetration closure members now include the nozzle identification number within XML3D reports. [63909]

    • UCS-66 curve
      Components exempt from impact testing per UCS-66 now include a UCS-66 tag inside of the XML report. [63259]

plus 2

Heat Exchanger

Highlighted Features
  • ASME Section VIII Division 1 2017 Edition
    The additions and changes made in the 2017 Edition of the ASME Code for heat exchangers are as follows:

    (1) UHX-9.5 Tubesheet Extension Allowable Stress: The allowable stress for the tubesheet flanged extension is now denoted as Sfe in the equations given in UHX-9.5(a) and UHX-9.5(c). This is a reporting change only and does not affect the calculations.

    (2) UHX-13.10 Kettle Shell Exchangers With Fixed Tubesheets: Part UHX now includes a method for applying the rules of UHX-13.5 to heat exchangers with a small cylinder and eccentric cone between the tubesheet and large cylinder. Previously, this was only available in TEMA-only designs. The UHX-13.10 rules add more acceptance criteria as well as an additional axial force induced by the restraint of the tubesheet and tubes to be used in the cone juncture discontinuity analyses per Appendix 1-5 and Appendix 1-8.
    Note that for maximum pressure calculations, the cone juncture discontinuity analyses per Appendix 1-5, Appendix 1-8, and U-2(g) are only evaluated at the tubesheet maximum pressure and not that of the cone. The cone juncture discontinuity analyses do not currently limit the tubesheet maximum pressure determination. To work around this, the "Use Design P&Design Pe for Appendix 1-5 and Appendix 1-8 Calculations" checkbox is available in the Transition Dimensions dialog exclusively for this type of heat exchanger in rating mode.

    (3) Appendix 5 Flexible Shell Element changes: All references to “Flanged-and-Flued” or “Flanged-Only” expansion joints are now “Flexible Shell Element” expansion joints. An Appendix 5-4(b) check insures that all welds connected to a flexible shell element are full penetration, Type 1. An Appendix 5-4(d) check insures that welds within 2.5* √(R*t) of the flexible shell expansion joint are Type 1.

    (4) Changes to Bellows Expansion Joints:
    • UHX-16 - Part UHX now provides equations to compute the axial displacement over the length of the expansion joint.
    • Unreinforced Bellows Expansion Joints:
      • 26-6.3.1 - The circumferential membrane stress due to pressure, S1 now only applies to externally attached bellows
      • 26-6.3.2(a) - The circumferential membrane stress in the collar due to pressure, S1' now only applies to externally attached bellows
      • 26-6.3.2(b) - The circumferential membrane stress in the shell due to pressure, S1''' is now calculated for internally attached bellows
      • 26-3.3.3 - The circumferential membrane stress due to pressure for bellows convolutions, S2,E now only applies to externally attached bellows when k < 1
      • 26-6.5.2 - The equivalent thickness variable is now, teq from the previously used eeq
    • 26-8.5.1 - Toroidal Bellows external pressure capacity is now set to 15 psi


    (5) UHX-17 - The flexible shell element FEA now uses the axial displacement over the length of the expansion joint equations given in UHX-16(a) and (b) [63946]


Additional Features

  • Expansion Joints

    • Appendix 5-5 enforced
      The Appendix 5-5(b) and (c) requirements of full radiography are now enforced for the expansion joint longitudinal seams and circumferential seams, respectively. [63549]

  • Heat Exchanger

    • Input for small end of kettle cone
      The small cone end of kettle type heat exchangers now has an input separate from that of the kettle port cylinder. Additionally, kettle cone length, thickness, diameters, and eccentricity is now only accessible through the Heat Exchanger dialog in order to enforce symmetry between the front and rear transitions. Existing files with mismatched transition dimensions will copy the values from the front transition and apply them to the rear transition. [63507]

    • Operating maximum allowable compressive stress
      The maximum allowable compressive stress for shell components analyzed in UHX 13.5.10 is now correctly evaluated at the operating temperature for operating load cases 5 through 8. Previously, the maximum allowable compressive stress at the design temperature was used for all load cases. [63518]

  • Tube Layout

    • Drop-down menu icons
      The Replace with... drop-down menu in the Tube Layout dialog now features attachment icons for tubes, tie rods, dummy tubes, and seal rods. These options can be accessed by right clicking an active tube location and selecting the Replace with... option. [59937]

    • Pass partition arrangement included
      The Tube Bundle Design report now includes text and an image depicting the pass partition arrangement and the location of the first pass. [59970]

    • Pass partition dimensional drawing
      The Tubes and Shell tab in the Heat Exchanger dialog now features a dimensional drawing to indicate the horizontal / vertical pass partition clearance and pass partition groove depth for multi-pass heat exchangers with an active tube layout. [62750]

    • Warning for mismatching tube layout area and perimeter values
      A warning now appears upon exiting the Heat Exchanger dialog when the geometry for the tube layout changes to a state that does not match the calculated tube layout area and perimeter values. Previously, this would only appear when leaving the Tube Layout page. [63079]

plus 4

Division 2 2007 Edition and Later

  • General

    • ASME Section VIII, Division 2 2017 Edition
      The 2017 Edition of the ASME Code is now available. The additions and changes follow:

      (1) The materials database now includes all ASME Section II, Part D 2017 Edition data for both Customary and Metric editions. This includes all materials from Tables 2A, 2B, 3, 5A, and 5B. In addition, Table U (tensile strength), Table Y-1 (yield strength), Tables TE-1 through TE-5 (thermal expansion coefficients), Tables TM-1 through TM-5 (elastic moduli) and all vacuum charts have are updated.

      (2) Division 2 now includes two vessels classes: Class 1 (Design Margin 3.0) and Class 2 (Design Margin 2.4). Class 1 and Class 2 vessels use the same design rules with a few minor exceptions where the design margin difference must be considered. Class 1 vessels may be used by U2 Certificate Holders to design and construct an ASME vessel with a U2 Certificate Designator without all of the additional requirements of a U2 Class 2 vessel. When the material yield stress does not govern the allowable tensile stress, the Division 2 rules result in reduced required thicknesses from Division 1 results based on the reduced design margin. Additionally, the design rules may also result in reduced material costs, such as reduction in required reinforcement from the nozzle reinforcement rules.
      • Certification of User’s Design Specification is only required if a fatigue analysis is required
      • Certification of the Manufacturer’s Design Report is only required if a fatigue analysis is required or Part 5 is used to determine the thickness of pressure parts when design rules are not provided in Part 4.
      Class 2 vessels have the same design margin, design rules, and certification requirements as the 2015 Edition, with the exception of the 2017 changes.

      (3) Figures 3.7, 3.7M, 3.8, and 3.8M: SA-299 added to Curve B if not normalized and Curve D if normalized.

      (4) 3.11.2.5, 3.11.2.9, 3.11.3, and 3.11.4: The minimum coincident stress ratio of 0.3 applied for Class 1 vessels.

      (5) 4.1.6.2: Allowable stress for the test condition updated to use the new equations and Table 4.1.3 factors.

      (6) 4.4.12.2(b)(2): Upper limit for the slenderness factor for column buckling updated from 1.147 to 1.2.

      (7) 4.4.12.2(e)(2): The value of Fca, used in the calculation of Fah2, is determined using the 4.4.12.2(b)(2) equations by now substituting Fxa = Fxha where Fxha is determined from (e)(1).

      (8) 4.4.12.4(b): Equation 4.4.126 updated for spherical shells and formed heads with unequal biaxial stresses, both stresses are compressive.

      (9) 4.5.3.4: The shear stress criterion for the cylindrical shells and heads of saddle supported vessels is now based on whether the material is classified as a low stress or high stress material. The acceptance criteria is lower (0.6*S) for a high stress materials, which are designated by Table 5A Note G2 or Table 5B Note G1.

      (10) 6.1.2.3(c)(4): The thickness of the part before cold forming may not exceed 16 mm (5/8 in.) is now an additional condition that must be met in order to be exempt from heat treatment when using the lower 5% extreme fiber elongation limit.

      (11) 8.2 and 8.3: Hydrostatic testing and pneumatic testing rules updated.

      (12) Forms A-1, A-2 revised. [62806]

  • Cylinders

    • Allowable compressive membrane stress due to an axial compressive load
      The allowable compressive membrane stress due to an axial compressive load, Fca, is now reported in the 4.4.12.2.i Axial Compressive Stress, Compressive Bending Stress, and Shear table when the slenderness factor for column buckling, λc, is greater than 0.15 and less than 1.2. [63725]

  • Material Scheme

    • Division 2 Class 1 and Class 2
      The Material Scheme dialog now supports Division 2 Class 1 and Class 2 materials. The auto synchronization feature will check that the selected materials have equivalents in Class 1 and Class 2 and color cells for components red if they do not. Material schemes imported from Build 7710 will clone the materials from Division 2 customary and metric units and place them in each class for their respective units. [63521]