Krishnan K. Chittur, Ph.D.

You can download the software and manuals for free from the official ASCEND website. In these pages, I have described how we can use ASCEND in undergraduate education, with detailed examples and code in the ASCEND language.

What does this program allow us to do? If we know how to model a specific system, know the equations that can be used to describe the system, the program provides an

If you pick up the ASCEND distribution, you will find tons of examples in it. This program cannot be understood by reading the manual (even though it is well written!) - You understand only when you run the examples yourself - trust me, I know.

Please watch this space for some helpful information about models and scripts. Do you ABSOLUTELY need a script? No. They why are they here? It helps you setup the model equations and obtain a solution. Can you do that from within ASCEND? Yes, ofcourse. I hope to place a summary here (or provide a link) to a philosophical discussion related to MODELS and how to solve them

Links to Model and Scripts | Description |

Model and Script | Equations of State |

Model and Script | Problem 10.1, Smith, VanNess 7th Edition, page 370 |

Model and Script | Example Problem 6.3, Smith, VanNess 7th Edition, pages 213-215 |

Model and Script | Problem 10.1, Smith, VanNess 7th Edition, pages 352-356 |

Model and Script | Example Problem 10.3, Smith, VanNess 7th Edition, pages 359-363 |

Use this script | For Example 10.3 (Smith and VanNess), if you want to see how the azeotropic pressure varies with Temperature? |

Model and Script | for Problem 3.32, Smith, VanNess 7th Edition |

PT Flash - Notes and here are Models and Script | for the PT Flash Example (as described in book by Beigler/Grossmann/Westerberg) |

Model using flash.a4l in ascend and Script | For Flash Calculations using Built-In Models |

Model and Script | For Differential Distillation - How to use ASCEND with LSODE for a Differential Algebraic Problem - this was written at CMU |

The NRTL Model and Script | FOR the NRTL Model for Activity Coefficient Calculations |

Model for P-xy diagram and Script | For Smith, Van Ness and Abbott (5th Ed) page 444 |

Model and Script | For Smith, Van Ness and Abbott (5th Ed) page 449 |

Models and Script and A brief tour | by Pedro Vale Lima on Thermodynamic Models in ASCEND |

Models, Equations, Notes and Here is a Script | For Problem on Page 508 from Felder/Rousseau's Elementary Principles of Chemical Processes Book |

Models, Equations, Notes and Here is a Script | Problem on Page 510 from Felder/Rousseau's Elementary Principles of Chemical Processes Book |

Models, Equations and Script - Integration and Plotting | For Hines and Maddox - Mass Transfer (Fundamentals and Applications) - Problem on Page 61, Example 3.1 |

Models, Equations and Script - Integration and Plotting | For Hines and Maddox - Mass Transfer (Fundamentals and Applications) - Problem on Page 62, Example 3.2 |

Model and Script | For Problem from Janna, Example 3-3 |

Model and Script | For Problem from Janna, Example 3-7 |

Model and Script | For Calculating Reynolds Dimensionless Number (mix/match units) |

Model and Script | For Example 7.3, page 220 from Beigler/Grossmann/Westerberg |

Model and Script | for Example on Page 266 from Beigler/Grossmann/Westerberg |

Model and Script | for Example on Page 270 from Beigler/Grossmann/Westerberg |

Model and Script | For Himmelblau, 6th Ed, pg 121 |

- I will be happy to credit you with your example problem and solution (and for finding errors!) I do have a wish list - how I would like to see my programs improved! A barebones guide to how to model using a thermodynamics example, problem 3.32, VanNess/7th Edition, equations of state Help me with my wish list? Why ASCEND?, IMHO

This document was translated from L^{A}T_{E}X byH^{E}V^{E}A.