Introduction to Aspen Plus.ppt

1997 AspenTech.All rights reserved.,*,*,Slide,*,Introduction to Aspen Plus,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,Click to edit Master title style,Aspen Technology,Inc.,Based on Aspen Plus,10,May 1998,1997 AspenTech.All rights reserved.,Potential,Reach Your,True,Introduction to,Aspen Plus,12/10/2025,1,Introduction to Aspen Plus,Contact Information,Phone:[phone],Fax:[phone],e-mail:,atasupport,aspentech,.com,Address:Room 702,Sinsong,Building25-4,Yoido,-dong,Youngdeungpo,-,ku,Seoul,12/10/2025,2,Introduction to Aspen Plus,Course Agenda-Day 1,1.,Introduction,-General Simulation Concepts,2.,The User Interface,-Graphical Flowsheet Definition,3.,Basic Input,-Getting Around the Graphical User Interface,4.,Unit Operation Models,-Overview of Available Unit Operations,5.,RadFrac,-Multistage Separation Model,6.,Reactor Models,-Overview of Available Reactor Types,7.,Cyclohexane,Production Workshop,12/10/2025,3,Introduction to Aspen Plus,Course Agenda-Day 2,8.,Physical Properties,-Overview of Thermodynamic Models,Basic Property Analysis and Reporting,9.,Accessing Variables,-Making References to Flowsheet Variables,10.,Sensitivity Analysis,-Studying Relationships Between Process Variables,11.,Design Specifications,-Meeting Process Objectives,12.,Fortran Blocks,-Use of In-Line Fortran,13.,Windows Interoperability,-Transferring Data to and from Other Windows Programs,12/10/2025,4,Introduction to Aspen Plus,Course Agenda-Day 3,14.,Heater and,HeatX,-Heaters and Heat Exchangers,15.,Pressure Changers,-Pumps,Compressors,Pipes and Valves,16.,Flowsheet Convergence,-Convergence Blocks,Tear Streams and Flowsheet Sequences,17.,Full-Scale Plant Modeling Workshop,-Simulate a Methanol Plant,12/10/2025,5,Introduction to Aspen Plus,Additional Topics,18.,Maintaining Aspen Plus Simulations,-Managing Aspen Plus Files for Storage and Retrieval,19.,Customizing the Look of Your Flowsheet,-Creating Process Flow Diagrams,19.,Estimation of Physical Properties,-Overview of Property Estimation,20.,Electrolytes,-Introduction to the Use of Electrolytes,21.,Solids Handling,-Overview of the Solids Capabilities,22.,Optimization,-Optimizing a Flowsheet,12/10/2025,6,Introduction to Aspen Plus,Additional Topics,(Continued),23.,RadFrac,Convergence,-Techniques for Converging Difficult Columns,24.,External Fortran,-Using External Subroutines to Customize a Flowsheet,25.,VCM Workshop,12/10/2025,7,Introduction to Aspen Plus,Appendices,A.,Enthalpy Reference and Heat of Reaction,B.,Workshop Instructions,C.,Workshop Results,12/10/2025,8,Introduction to Aspen Plus,Introduction,Objective:,Introduce general flowsheet simulation concepts and Aspen Plus features,9,Introduction to Aspen Plus,Introduction,What is flowsheet simulation?,Use of a computer program to quantitatively model the characteristic equations of a chemical process,Uses underlying physical relationships,Mass and energy balance,Equilibrium relationships,Rate correlations(reaction and mass/heat transfer),Predicts,Stream flowrates,compositions,and properties,Operating conditions,Equipment sizes,12/10/2025,10,Introduction to Aspen Plus,Advantages,of Simulation,Reduces plant design time,Allows designer to quickly test various plant configurations,Helps improve current process,Answers“what if”questions,Determines optimal process conditions within given constraints,Assists in locating the constraining parts of a process(debottlenecking),12/10/2025,11,Introduction to Aspen Plus,General Simulation Problem,What is the composition of stream PRODUCT?,To solve this problem,we need:,Material balances,Energy balances,REACTOR,FEED,RECYCLE,REAC-OUT,COOL,COOL-OUT,SEP,PRODUCT,12/10/2025,12,Introduction to Aspen Plus,Approaches to Flowsheet Simulation,Sequential Modular,Aspen Plus is a sequential modular simulation program.,Each unit operation block is solved in a certain sequence.,Equation Oriented,Aspen Custom Modeler(formerly SPEEDUP)is an equation oriented simulation program.,All equations are solved simultaneously.,Combination,Aspen Dynamics(formerly DynaPLUS)uses the Aspen Plus sequential modular approach to initialize the steady state simulation and the Aspen Custom Modeler(formerly SPEEDUP)equation oriented approach to solve the dynamic simulation.,12/10/2025,13,Introduction to Aspen Plus,Good Flowsheeting Practice,Build large flowsheets a few blocks at a time.,This facilitates troubleshooting if errors occur.,Ensure flowsheet inputs are reasonable.,Check that results are consistent and realistic.,12/10/2025,14,Introduction to Aspen Plus,Important Features of Aspen Plus,Rigorous Electrolyte Simulation,Solids Handling,Petroleum Handling,Data Regression,Data Fit,Optimization,User Routines,12/10/2025,15,Introduction to Aspen Plus,The User Interface,Objective:,Become comfortable and familiar with the Aspen Plus graphical user interface,Aspen Plus References:,User Guide,Chapter 1,The User Interface,User Guide,Chapter 2,Creating a Simulation Model,User Guide,Chapter 4,Defining the Flowsheet,16,Introduction to Aspen Plus,The User Interface,Reference:Aspen Plus User Guide,Chapter 1,The User Interface,Run ID,Tool Bar,Title Bar,Menu Bar,Select Mode,button,Model,Library,Model Menu,Tabs,Process,Flowsheet,Window,Next Button,Status Area,12/10/2025,17,Introduction to Aspen Plus,The User Interface,(Continued),Using the mouse,Left button click-Select object/field,Right button click-Bring up menu for selected object/field,or inlet/outlet,Double left click-Open Data Browser object sheet,Reference:Aspen Plus User Guide,Chapter 1,The User Interface,12/10/2025,18,Introduction to Aspen Plus,Graphic Flowsheet Operations,To place a block on the flowsheet:,1.Click on a model category tab in the Model Library.,2.Select a unit operation model.Click the drop-down arrow to select an icon for the model.,3.Click on the model and drag it to the flowsheet where you want to place the block,then release the mouse button.,12/10/2025,19,Introduction to Aspen Plus,Graphic Flowsheet Operations,(Continued),To place a stream on the flowsheet:,1.Click on the STREAMS icon in the Model Library.,2.If you want to select a different stream type(Material,Heat or Work),click the down arrow next to the icon and choose a different type.,3.Click a highlighted port to make the connection.,4.Repeat step 3 to connect the other end of the stream.,5.To place one end of the stream as either a process flowsheet feed or product,click a blank part of the Process Flowsheet window.,6.Click the right mouse button to stop creating streams.,12/10/2025,20,Introduction to Aspen Plus,Graphic Flowsheet Operations,(Continued),To display an Input form for a Block or a Stream in the Data Browser:,1.Double click the left mouse button on the object of interest.,To Rename,Delete,Change the icon,provide input or view results for a block or stream:,1.Select object(Block or Stream)by clicking on it with the left mouse button.,2.Click the right mouse button while the pointer is over the selected object icon to bring up the menu for that object.,3.Choose appropriate menu item.,Reference:Aspen Plus User Guide,Chapter 4,Defining the Flowsheet,12/10/2025,21,Introduction to Aspen Plus,Cumene Flowsheet Definition,RStoic,Model,Heater,Model,Flash2,Model,Filename:CUMENE.BKP,REACTOR,FEED,RECYCLE,REAC-OUT,COOL,COOL-OUT,SEP,PRODUCT,12/10/2025,22,Introduction to Aspen Plus,Benzene Flowsheet Definition Workshop,Objective:Create a graphical flowsheet,Choose the appropriate icons for the blocks.,Rename the blocks and streams.,When finished,save in backup format(Run-ID.BKP).,filename:BENZENE.BKP,FL1,Heater,Model,Flash2,Model,Flash2,Model,COOL,FEED,COOL,VAP1,LIQ1,FL2,VAP2,LIQ2,12/10/2025,23,Introduction to Aspen Plus,Basic Input,Objective:,Introduce the basic input required to run an Aspen Plus simulation,Aspen Plus,References:,User Guide,Chapter 3,Using Help,User Guide,Chapter 5,Global Information for Calculations,User Guide,Chapter 6,Specifying Components,User Guide,Chapter 7,Physical Property Methods,User Guide,Chapter 9,Specifying Streams,User Guide,Chapter 10,Unit Operation Models,User Guide,Chapter 11,Running Your Simulation,24,Introduction to Aspen Plus,The User Interface,Pulldown Menus,Used to specify program options and commands,Toolbar,Allows direct access to certain popular functions,Can be moved,hidden,or revealed,Data Browser,Used to navigate the forms,Can be moved,resized,minimized,maximized or closed,Forms,Used to enter data and view results for the simulation,Can be comprised of a number of sheets,12/10/2025,25,Introduction to Aspen Plus,The User Interface,(Continued),Object Manager,Allows manipulation of discrete objects of information,Objects can be created,edited,renamed,deleted,hidden,and revealed(Copy and paste of objects will be possible in Version 10.1),Next,Checks if the current form is complete and skips to next form which requires input,12/10/2025,26,Introduction to Aspen Plus,The Data Browser,Menu tree,Previous sheet,Next sheet,Status area,Parent button,Units,Go back,Go forward,Comments,Next,Description area,Status,12/10/2025,27,Introduction to Aspen Plus,Help,Help Topics,Contents-Used to browse through the documentation.The User Guides and Reference Manuals are all included in the help.,All of the information in the User Guides is found under the Using Aspen Plus book.,Index-Used to search for help on a topic using the index entries,Find-Used to search for a help on a topic that includes any word or words,“Whats This?”Help,Select“Whats This?”from the Help menu and then click on any area to get help for that item.,12/10/2025,28,Introduction to Aspen Plus,Functionality of Forms,When you select a field on a form(click left mouse button in the field),the prompt area at the bottom of the window gives you information about that field.,Click the drop-down arrow in a field to bring up a list of possible input values for that field.,Typing a letter will bring up the next selection on the list that begins with that letter.,The Tab key will take you to the next field on a form.,12/10/2025,29,Introduction to Aspen Plus,Basic Input,The minimum required inputs(in addition to the graphical flowsheet)to run a simulation are:,Setup,Components,Properties,Streams,Blocks,These inputs are all found in folders within the Data Browser.,These input folders can be located quickly using the Data menu or the Data Browser buttons on the toolbar.,12/10/2025,30,Introduction to Aspen Plus,Status Indicators,12/10/2025,31,Introduction to Aspen Plus,Setup,Most of the commonly used Setup information is entered on the,Setup Specifications,Global,sheet:,Flowsheet title to be used on reports,Run type,Input and output units,Valid phases(e.g.vapor-liquid or vapor-liquid-liquid),Ambient pressure,Stream report options are located on the,Setup Report Options Stream,sheet.,12/10/2025,32,Introduction to Aspen Plus,Setup Specifications Form,12/10/2025,33,Introduction to Aspen Plus,Setup Run Types,12/10/2025,34,Introduction to Aspen Plus,Setup Units,Units in Aspen Plus can be defined at 3 different levels:,1.Global Level(“Input Data”&“Output Results”fields on the,Setup Specifications Global,sheet),2.Object level(“Units”field in the top of any input form,of an object such as a block or stream,3.Field Level,Users can create their own units sets using the,Setup,Units Sets,Object Manager.Units can be copied from an existing set and then modified.,12/10/2025,35,Introduction to Aspen Plus,Components,Use the,Components Specifications,form to specify all the components required for the simulation.,If available,physical property parameters for each component are retrieved from databanks.,Pure component databanks contain parameters such as molecular weight,critical properties,etc.The databank search order is specified on the Databanks sheet.,The Find button can be used to search for components by component name,formula,component class,molecular weight,boiling point,or CAS number.,The Electrolyte Wizard can be used to set up an electrolyte simulation.,12/10/2025,36,Introduction to Aspen Plus,Components Specifications Form,12/10/2025,37,Introduction to Aspen Plus,Entering Components,The Component ID is used to identify the component in simulation inputs and results.,Each Component ID can be associated with a databank component as either:,Formula:Chemical formula of component e.g.,C6H6(Note that a suffix is added to formulas when there are isomers.E.g.C2H6O-2),Component Name:Full name of component e.g.,BENZENE,Databank components can be searched for using the Find button.,Search using component name,formula,component class,molecular weight,boiling point,or CAS number.,All components containing specified items will be listed.,12/10/2025,38,Introduction to Aspen Plus,Find,12/10/2025,39,Introduction to Aspen Plus,Pure Component Databanks,Parameters missing from the first selected databank will be searched for in subsequent selected databanks.,12/10/2025,40,Introduction to Aspen Plus,Properties,Use the,Properties Specifications,form to specify the physical property methods to be used in the simulation.,Property methods are a collection of models and methods used to describe pure component and mixture behavior.,Choosing the right physical properties is critical for obtaining reliable simulation results.,Selecting a Process Type will narrow the number of methods available.,12/10/2025,41,Introduction to Aspen Plus,Properties Specifications Form,12/10/2025,42,Introduction to Aspen Plus,Streams,Use,Stream Input,forms to specify the feed stream conditions and composition.,To specify stream conditions enter two of the following:,Temperature,Pressure,Vapor Fraction,To specify stream composition enter either:,Total stream flow and component fractions,Individual component flows,Specifications for streams that are not feeds to the flowsheet are used as estimates.,12/10/2025,43,Introduction to Aspen Plus,Streams Input Form,12/10/2025,44,Introduction to Aspen Plus,Blocks,Each,Block Input,or,Block Setup,form specifies operating conditions and equipment specifications for the unit operation model.,Some unit operation models require additional specification forms,All unit operation models have optional information forms(e.g.,BlockOptions,form).,12/10/2025,45,Introduction to Aspen Plus,Block Form,12/10/2025,46,Introduction to Aspen Plus,Starting the Run,Select,Control Panel,from the,View,menu or press the Next button to be prompted.,The simulation can be executed when all required forms are complete.,The Next button will take you to any incomplete forms.,12/10/2025,47,Introduction to Aspen Plus,Control Panel,The Control Panel consists of:,A message window showing the progress of the simulation by displaying the most recent messages from the calculations,A status area showing the hierarchy and order of simulation blocks and convergence loops executed,A toolbar which you can use to control the simulation,12/10/2025,48,Introduction to Aspen Plus,Reviewing Results,History file or Control Panel Messages,Contains any genera