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Hysys Modeling Pdf Documents AvailableIf your questions are not answered with online help, see the pdf documents available from the ASPEN documentation folder available on the START menu.Given a process design and an appropriate selection of thermodynamic models, ASPEN uses mathematical models to predict the performance of the process. This information can then be used in an iterative fashion to optimize the design. This accurate modeling of thermodynamic properties is particularly important in the separation of non-ideal mixtures, and ASPEN has a large data bases of regressed parameters. ASPEN can handle very complex processes, including multiple-column separation systems, chemical reactors, distillation of chemically reactive compounds, and even electrolyte solutions like mineral acids and sodium hydroxide solutions. It takes a design that the user supplies and simulates the performance of the process specified in that design. Therefore, a solid understanding of the underlying chemical engineering principles is required to supply reasonable values of input parameters and to evaluate the suitability of the results obtained. For instance, a user should have some idea of the column behavior before attempting to use ASPEN. This information could come from an approximate method, such as the McCabe-Thiele approach, general modeling of the T-x-y behavior, or residue curve maps. ASPEN cannot tell you how many stages to use for a given separation. You must set the number of stages and see what type of separation results. Some preliminary or back of the envelope calculations are generally recommended. MSU has a variety of Aspen packages for different simulations. ![]() Aspen Chromatography - Fixed bed adsorption, simulated moving bed chromatography. Aspen Custom Modeler - A utility to permit the creation of user unit operations. Aspen Distil - Aspens Conceptual Engineering Product for planning for processing schemes. Aspen Properties - Modeling of properties and phase equilibria. Incorporated into most other components, though it can be run as a stand-alone subset. All of the phase equilibria and mixture property methods discussed on this site are accessible in either Aspen Plus or Aspen Properties. Aspen Polymers - Modeling of polymerization reactors and polymer thermodynamics. This package is available within Aspen Plus or Aspen Properties rather than via an external menu. Normally undergraduate student projects will involve Aspen Plus or Aspen Properties. To start either of these packages, be sure to look for the corresponding User Interface on the start menu. Getting more help This document is intended to be an overview. Work through your instructor and TA for getting answers to your questions.
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