NEW FEATURES IN CHEMCAD VERSION 6:

• Uses a single mode for flowsheet drawing, specification, calculation, and PFD creation
• Creates single-file simulations that are easy to work with and share
• Easy cloning of UnitOps and streams using Templates feature

• New structure of component database improves handling and sharing of user-defined components; over 100 new components added
• Auto-convergence option now available for distillation columns
• VBA™/VSTA™ now embedded into CHEMCAD

VERSION 6.1.3 RELEASE NOTES

CHEMCAD New Features and Enhancements

• Added user warnings for META UnitOps, or copied streams, from CC5 simulations (1144)
• Added user warnings about failure to copy Excel and/or VB files for kinetic reactors (1272)
• Added pH and relative humidity to the Stream Properties report (1277)
• Added a security check to verify that the current user can save the simulation being opened (1290)
• Added the capability to right-click a UnitOp or stream to edit its specifications (1400)
• Added activity-based kinetic rate reactions (1431)
• Added user rate expression for reactive distillation in SCDS (1432)
• Added cross flow velocity calculation to vibration analysis for vertical condenser (1522)
• Added the capability to use extended Antoine vapor pressure equation parameters D, E, F, and G (1556)
• Added calculated diffusivity parameters to Tower Mass Transfer distillation reports (1674)
• Improved the design of the Solid Components dialog box (1677)
• Added pressure drop per height to column sizing reports for Billet-Schultes column packing (1708)
• Changed the Stream Properties report to omit vapor pressure result if a flash fails to converge (1901)
• Added the capability to use Align commands on text items in flowsheets (1947)
• Updated the E-mail Simulation feature to include only the file name in the subject line and attachment name (1958)
• Added an exception handler that enables the user to send an optional error report to Chemstations if CHEMCAD closes unexpectedly (1972)
• Added the capability to regress group BIPs for PSRK, UNIFAC, and Modified UNIFAC (2009)
• Changed the behavior of the Edit Streams dialog box so that it is always visible on the CHEMCAD workspace when open (2011)
• Added a warning for use when apparent species is insufficient for carbonate salts (2034)
• Added the capability to import and export Data Maps between simulations (2053)
• Changed heat of formation data for Refrigerant 123 (component number 1631) (2095)
• Added the capability to opt out of including component IDs as synonyms for CHEMCAD 6 user-defined components on import from CHEMCAD 5 (2098)
• Updated the SCDS UnitOp interface to allow for modeling heat-integrated distillation column (HIDiC) technology (2109)
• Added access to EREA equilibrium data variables for Data Maps (2115)
• Expanded EREA equilibrium constant correlation to include more terms as a function of temperature (2124)
• Enhanced the product and feed arrow icons so that a user can now double-click them to get product or stream information (2143)
• Improved viscosity calculation for petroleum fractions (2158)
• Expanded the number of columns that can be exported to a Data Maps (2177)

CHEMCAD Maintenance

• Corrected an issue with the OPC server not installing properly (1420)
• Corrected an issue that caused an unnecessary error message when a user copied flowsheet objects to a new simulation (1886)
• Corrected an issue where user components copied from one simulation to another caused UnitOps to shuffle, with unpredictable results (1967)
• Corrected an issue with the META UnitOp that had prevented the copying of certain streams (1968)
• Corrected an issue with once-through thermosyphon reboiler pulling data from incorrect stage (1971)
• Corrected an issue with air cooler calculated MTD and excess area changing drastically when the number of tube passes changed (1984)
• Corrected an issue with Delete key function in CHEMCAD's internal report viewer (1996)
• Corrected an issue with Billet packed-bed sizing for very small vapor-liquid ratio (2005)
• Corrected an issue with the Format > Add Stream Box command reverting to previously selected streams (2037)
• Corrected a rare occurrence of CHEMCAD closing unexpectedly when more than 40 inert components are added to a Gibbs reactor (2046)
• Corrected an issue with the Hide All Stream IDs and Hide All UnitOp IDs settings (2051)
• Corrected an issue with synonyms in user-defined components being lost during conversion of a simulation from CHEMCAD 5 to CHEMCAD 6 (2088)
• Corrected an issue with CHEMCAD unexpectedly closing when a TOWR side product stream contains no components (2102)
• Corrected a rare issue with the pseudocomponent Curve Temperature Cut Ranges dialog box not allowing data deletion (2114)
• Corrected an issue where CHEMCAD sometimes required a dynamics license for relief valve sizing (2119)
• Corrected an issue where ~SimulationName.tmp sometimes appeared in the CHEMCAD Explorer list of recently used files (2121)
• Corrected an issue with the Gibbs reactor element matrix retaining incorrect atoms for cloned components whose formulas have changed (2125)
• Corrected the consolidated report's Flow Summaries page to include mass fraction calculations (2127)
• Corrected an issue with the Format > Add UnitOp Box command reverting to previously selected UnitOps (2145)
• Corrected a rare issue with the BREA UnitOp producing an outlet flow rate size error (2185)

CC-THERM

• Corrected an issue with no-baffle rating case being affected by inlet and outlet baffle spacing (1402)
• Added a parallel flow model to the Silver-Bell-Ghaly method in CC-THERM (1487)
• Corrected a variable name (shell side, two-phase multiplier) on the Excel Zone-by-Zone analysis report (1923)
• Corrected an issue with the Zone-by-Zone Analysis report to include vapor velocity and Reynolds number for the vapor cooling zone (2063)
• Removed the Use standard pipe as shell option in the Shell Specifications dialog box, as this is automatically invoked for design mode (for rating, actual shell internal diameter is used) (2081)
• Corrected a minor issue with roughness factor affecting the tube friction factor in double-pipe heat exchanger sizing (2137)
• Corrected an issue with critical velocity calculation for vibration analysis in two-phase zones (2168)