Chemstations CHEMCAD Suite v7.1.2.9917 CHEMCAD is Chemstations’ intuitive suite of chemical process simulation software that broadens an engineer’s capabilities and increases productivity. CHEMCAD supercharges an engineer’s efficiency when facing the toughest chemical process models or addressing day-to-day challenges. CHEMCAD New Features and Enhancements Improved the PIPE UnitOp dialog to streamline data input for pipe schedules, update schedule table data, and expand available pipe size options (3207, 3385, 6251, 6257) Updated the Q, R, and main group BIPs for PSRK and UNIFAC (5098, 6171) Added a calculated head display field to the Compressor UnitOp specification dialog (5628) Updated Modified UNIFAC to 2016 revision 6 (6041) Added pressure dependence to VTPR liquid-liquid calculations (6097) Improved convergence for the Hayden O’Connell vapor phase association model (6233) CC-DYNAMICS Added a warning to prevent vessel catalog from overriding user input for the Vessel Reactor UnitOp (5954) CHEMCAD Maintenance Corrected an issue with neutral file import (5871) Corrected an issue where the [F6] engineering unit converter dialog gave some incorrect conversions (6164) Corrected a database issue with user-added components that include library data (6169) Corrected a rare issue with user-added modules not displaying all items contained in the usradd.dll menu (6173) Corrected an issue where CHEMCAD 7 could stop unexpectedly when running a compressor with a single speed line (6188) Corrected an issue with the Hide All Stream IDs command (6190) Corrected an issue with PIPE UnitOp pipe thickness not updating in conjunction wth pipe schedule and nominal diameter definition (6250) VERSION 7.1.1 RELEASE NOTES CHEMCAD New Features and Enhancements Added cricondentherm and cricondenbar to the Overall property list for reporting (3710) Updated and added numerous subgroup assignments for UNIFAC and Modified UNIFAC (3045/5612/6082/6126) Updated the Specify Excel Workbook dialog to display all Excel file types (.xls, .xlsx, and .xlsm) when a user browses for files via the Add Excel Range command (4414) Increased the number of consecutive Undo/Redo operations that a user can perform in an open simulation (5948) CC-DYNAMICS Added a Vessel Reactor symbol that visually represents the incorporation of a relief device (1547) CHEMCAD Maintenance Corrected a display issue that caused extra blank lines to appear in some sections of the Consolidated Report (6127) Corrected an issue where the calculation sequence setting could not be changed from sequential modular to simultaneous modular (6135) Corrected an issue where UnitOps could not be selected for the Run Selected or Run Recycles commands by clicking their flowsheet symbols (6136) Corrected an issue where running UnitOps out of flowsheet sequence using the Run Recycles command could cause CHEMCAD to close unexpectedly (6137) Corrected an issue where a flowsheet could become unresponsive to mouse clicks (6138) Corrected a rare issue where dragging a group of flowsheet objects could result in misplaced stream lines (6149) Corrected a rare issue that could occur with the [F6] Engineering Units Converter for a pressure drop field converting from millibars (6164) Corrected MSRK documentation to show accurate equations (6117) Corrected an issue where phase envelope plots for a simulation using the VTPR model were calculated using SRK (6148)