Bruce Eldridge, over at the University of Texas Separations Research Program if you're interested in applied research on this topic and more. There are a number of companies that specialize in identifying such issues, and I invite you to check out our friends, Dr. * I should mention here that from what I've seen in papers delivered by distillation experts over the years, column-internals installation issues can cause significant deviation from expected results in the field. So, take a moment to back up a copy of a simulation with distillation column(s) convert them to mass-transfer by specifying the actual trays/packing you're using and enjoy the benefits of more accurate answers to your distillation calculations. If you have questions, or if you want to share your successes, give our technical staff a call today! CHEMCAD includes these models, along with a database of common packing coefficients. For trayed columns, we include the Chan-Fair, AIChE, and Zuiderweg tray models.ĭefining the geometry of such a column requires more user input, but the payoff is vastly improved accuracy and realism in the results for product streams, energy usage, and pressure drop.* When it came to actual columns in the field, however, they didn't always achieve quite what the equilibrium-stage based calculations predicted. You could specify an overall efficiency or even stage-by-stage efficiency profiles to get a better match, but this was a crude way of dealing with the issue.Įnter mass-transfer models, like Bravo & Fair for random packing, Bravo, Rocha & Fair for structured packing, and Billet & Schultes for random or structured packing. Licensing allows access from any student computer connecting toĬapabilities, thermo models, and physical property databaseĪs students, we learned McCabe-Thiele diagrams and shortcut methods to solve simple distillation systems. Often, a little more complexity was added using a spreadsheet to solve harder problems. Then, of course, we were given access to a simulation program which used more rigorous methods, including simultaneous correction and/or inside-out algorithms. Opportunity to work on real-world simulation problem Topics following typical ChemE curriculumĬhallenge Problem - Process Simulation Cup Segments covering select topics in more detail Introduction specifically for student audience Simulation Essentials - for Undergraduate Education Stop by and learn what our program offers: Selecting Engineering Units.36ĭrawing the Flowsheet.36Īdding UnitOps. Working with CHEMCAD Files from Previous Versions.34Ĭhapter 5 – Building and Using a Basic Simulation. Saving Different Cases for the Same Simulation.32Į‐mailing a Simulation. 27Ĭhapter 4 – Working with Simulation Files.
Visible Grid.27Īdjusting Your View of the Workspace.27 The Toolbar.23Ĭustomizing the CHEMCAD Screen.24
Selecting a Palette.20Ĭustomizing Palettes. The Chemstations Web Site.16Ĭontacting Chemstations Technical Support. UnitOps by Module.5Ĭhapter 2 – Getting Started with CHEMCAD. 3ĬC-BATCH.3ĬC-THERM.3ĬC-SAFETY NET.3ĬC-FLASH.3ĬHEMCAD Features by Module.4
Overview of CHEMCAD and Its Uses.1ĬHEMCAD Products and Features.
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