1998 aspen培训讲义.英文版

1、December 4, 2020,Slide 1,Introduction to Aspen Plus,Aspen Technology, Inc.,Based on Aspen Plus 10 May 1998,1997 AspenTech. All rights reserved.,Potential,Reach Your,True,Introduction to Aspen Plus,December 4, 2020,Slide 2,Introduction to Aspen Plus,Contact Information,Phone :02-761-5800 Fax :02-761-

2、5803 e-mail : Address :Room 702 Sinsong Building25-4 Yoido-dong,Youngdeungpo-ku, Seoul,December 4, 2020,Slide 3,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 Grap

3、hical 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,December 4, 2020,Slide 4,Introduction to Aspen Plus,Course Agenda - Day 2,8.Physical P

4、roperties - 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 - Us

5、e of In-Line Fortran 13.Windows Interoperability - Transferring Data to and from Other Windows Programs,December 4, 2020,Slide 5,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

6、 Convergence - Convergence Blocks, Tear Streams and Flowsheet Sequences 17.Full-Scale Plant Modeling Workshop - Simulate a Methanol Plant,December 4, 2020,Slide 6,Introduction to Aspen Plus,Additional Topics,18. Maintaining Aspen Plus Simulations - Managing Aspen Plus Files for Storage and Retrieval

7、 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 Flowshe

8、et,December 4, 2020,Slide 7,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,December 4, 2020,Slide 8,Introduction to Aspen Plus,Ap

9、pendices,A.Enthalpy Reference and Heat of Reaction B.Workshop Instructions C.Workshop Results,9,Introduction to Aspen Plus,Introduction,Objective: Introduce general flowsheet simulation concepts and Aspen Plus features,December 4, 2020,Slide 10,Introduction to Aspen Plus,Introduction,What is flowshe

10、et 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, an

11、d properties Operating conditions Equipment sizes,December 4, 2020,Slide 11,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

12、conditions within given constraints Assists in locating the constraining parts of a process (debottlenecking),December 4, 2020,Slide 12,Introduction to Aspen Plus,General Simulation Problem,What is the composition of stream PRODUCT? To solve this problem, we need: Material balances Energy balances,D

13、ecember 4, 2020,Slide 13,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 oriente

14、d 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 simu

15、lation.,December 4, 2020,Slide 14,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.,December 4, 2020,Slide 15,

16、Introduction to Aspen Plus,Important Features of Aspen Plus,Rigorous Electrolyte Simulation Solids Handling Petroleum Handling Data Regression Data Fit Optimization User Routines,16,Introduction to Aspen Plus,The User Interface,Objective: Become comfortable and familiar with the Aspen Plus graphical

17、 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,December 4, 2020,Slide 17,Introduction to Aspen Plus,The User Interface,Reference: Aspen Plus User Guide, Chapter 1, The U

18、ser Interface,Run ID,Tool Bar,Title Bar,Menu Bar,Select Mode,button,Model Library,Model Menu,Tabs,Process,Flowsheet,Window,Next Button,Status Area,December 4, 2020,Slide 18,Introduction to Aspen Plus,The User Interface (Continued),Using the mouse Left button click - Select object/field Right button

19、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,December 4, 2020,Slide 19,Introduction to Aspen Plus,Graphic Flowsheet Operations,To place a block on the flowsheet: 1.C

20、lick 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.,December 4, 2020,Slide 20,Introduction to

21、 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 highlighte

22、d 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.,December 4, 2020,Slide 2

23、1,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.Selec

24、t 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,Decembe

25、r 4, 2020,Slide 22,Introduction to Aspen Plus,Cumene Flowsheet Definition,RStoic,Model,Heater,Model,Flash2,Model,Filename: CUMENE.BKP,December 4, 2020,Slide 23,Introduction to Aspen Plus,Benzene Flowsheet Definition Workshop,Objective: Create a graphical flowsheet Choose the appropriate icons for th

26、e blocks. Rename the blocks and streams.,When finished, save in backup format (Run-ID.BKP). filename: BENZENE.BKP,FL1,24,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

27、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,December 4, 2020

28、,Slide 25,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 close

29、d Forms Used to enter data and view results for the simulation Can be comprised of a number of sheets,December 4, 2020,Slide 26,Introduction to Aspen Plus,The User Interface (Continued),Object Manager Allows manipulation of discrete objects of information Objects can be created, edited, renamed, del

30、eted, 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,December 4, 2020,Slide 27,Introduction to Aspen Plus,The Data Browser,Menu tree,Previous sheet,Next sheet,Status area,Parent

31、 button,Units,Go back,Go forward,Comments,Next,Description area,Status,December 4, 2020,Slide 28,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 Gui

32、des 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

33、.,December 4, 2020,Slide 29,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 possi

34、ble 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.,December 4, 2020,Slide 30,Introduction to Aspen Plus,Basic Input,The minimum required inputs (in addition to the graphica

35、l 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.,December 4, 2020,Slide 31,Introduction to Aspen P

36、lus,Status Indicators,December 4, 2020,Slide 32,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-liqu

37、id) Ambient pressure Stream report options are located on the Setup Report Options Stream sheet.,December 4, 2020,Slide 33,Introduction to Aspen Plus,Setup Specifications Form,December 4, 2020,Slide 34,Introduction to Aspen Plus,Setup Run Types,December 4, 2020,Slide 35,Introduction to Aspen Plus,Se

38、tup Units,Units in Aspen Plus can be defined at 3 different levels: 1.Global Level (“Input Data” however it has a few advantages:,December 4, 2020,Slide 111,Introduction to Aspen Plus,How to Establish Physical Properties,Choose a Property Method,Check Parameters/Obtain Additional Parameters,Confirm

39、Results,Create the Flowsheet,December 4, 2020,Slide 112,Introduction to Aspen Plus,Property Analysis,Used to generate simple property diagrams to validate physical property models and data Diagram Types: Pure component, e.g. Vapor pressure vs. temperature Binary, e.g. TXY, PXY Ternary residue maps A

40、dditional binary plots are available under the Plot Wizard button on result form containing raw data. When using a binary analysis to check for liquid-liquid phase separation, remember to choose Vapor-Liquid-Liquid as Valid phases. Property analysis input and results can be saved as a form for later

41、 reference and use.,December 4, 2020,Slide 113,Introduction to Aspen Plus,Property Analysis - Common Plots,Ideal XY Plot: XY Plot Showing Azeotrope: XY Plot Showing 2 liquid phases:,y-x diagram for TOLUENE / WATER,LIQUID MOLEFRAC TOLUENE,December 4, 2020,Slide 114,Introduction to Aspen Plus,How to E

42、stablish Physical Properties,Choose a Property Method,Check Parameters/Obtain Additional Parameters,Confirm Results,Create the Flowsheet,December 4, 2020,Slide 115,Introduction to Aspen Plus,Establishing Physical Properties - Review,1.Choose Property Method - Select a Property Method based on Compon

43、ents present in simulation Operating conditions in simulation Available data or parameters for the components 2.Check Parameters - Determine parameters available in Aspen Plus databanks 3.Obtain Additional Parameters (if necessary) - Parameters that are needed can be obtained from Literature searche

44、s Regression of experimental data (Data Regression) Property Constant Estimation (Property Estimation) 4.Confirm Results - Verify choice of Property Method and physical property data using Physical Property Analysis,December 4, 2020,Slide 116,Introduction to Aspen Plus,Property Sets,A property set (

45、Prop-Set) is a way of accessing a collection, or set, of properties as an object with a user-given name. Only the name of the property set is referenced when using the properties in an application. Use property sets to report thermodynamic, transport, and other property values. Current property set

46、applications include: Design specifications, Fortran blocks, sensitivity Stream reports Physical property tables (Property Analysis) Tray properties (RadFrac, MultiFrac, etc.) Heating/cooling curves (Flash2, MHeatX, etc.),December 4, 2020,Slide 117,Introduction to Aspen Plus,Properties included in P

47、rop-Sets,Properties commonly included in property sets include: VFRAC-Molar vapor fraction of a stream BETA - Fraction of liquid in a second liquid phase CPMX - Constant pressure heat capacity for a mixture MUMX -Viscosity for a mixture Available properties include: Thermodynamic properties of compo

48、nents in a mixture Pure component thermodynamic properties Transport properties Electrolyte properties Petroleum-related properties Reference: Reference Manual, Volume 3, Physical Property Data, Chapter 4 has a complete list of properties that can be included in a property set.,December 4, 2020,Slid

49、e 118,Introduction to Aspen Plus,Specifying Property Sets,Use the Properties Prop-Sets form to specify properties in a property set. The Search button can be used to search for a property. All specified qualifiers apply to each property specified, where applicable. Users can define new properties on

50、 the Properties Advanced User-Properties form by providing a Fortran subroutine.,December 4, 2020,Slide 119,Introduction to Aspen Plus,Predefined Property Sets,Some simulation Templates contain predefined property sets. The following table lists predefined property sets and the types of properties t

51、hey contain for the General Template:,December 4, 2020,Slide 120,Introduction to Aspen Plus,Stream Results Options,On the Setup Report Options Stream sheet, use: Flow Basis and Fraction Basis check-boxes to specify how stream composition is reported Property Sets button to specify names of property

52、sets containing additional properties to be reported for each stream,December 4, 2020,Slide 121,Introduction to Aspen Plus,Definition of Terms,Property Method - Set of property models and methods used to calculate the properties required for a simulation Property - Calculated physical property value

53、 such as mixture enthalpy Property Model - Equation or equations used to calculate a physical property Property Parameter - Constant used in a property model Property Set (Prop-Set) - A method of accessing properties so that they can be used or tabulated elsewhere,December 4, 2020,Slide 122,Introduc

54、tion to Aspen Plus,Physical Properties Workshop,Objective: Simulate a two-liquid phase settling tank and investigate the physical properties of the system.,A refinery has a settling tank that they use to decant off the water from a mixture of water and a heavy oil. The inlet stream to the tank also

55、contains some carbon-dioxide and nitrogen. The tank and feed are at ambient temperature and pressure (70o F, 1atm), and have the following flow rates of the various components: Water 515 lb/hr Oil4322 lb/hr CO2 751 lb/hr N2 43 lb/hr Use the compound n-decane to represent the oil. It is known that wa

56、ter and oil form two liquid phases under the conditions in the tank.,December 4, 2020,Slide 123,Introduction to Aspen Plus,Physical Properties Workshop (Continued),1.Choose an appropriate Property Method to represent this system. Check to see that the required binary physical property parameters are

57、 available. 2.Using the property analysis feature, verify that the chosen physical property model and the available parameters predict the formation of 2 liquid phases. 3.Set up a simulation to model the settling tank. Use a Flash3 block to represent the tank. 4.Modify the stream report to include t

58、he constant pressure heat capacity (CPMX) for each phase (V, L1 and L2), and the fraction of liquid in a second liquid phase (BETA), for all streams. 5.Retrieve the physical property parameters used in the simulation and determine the critical temperature for carbon dioxide and water. TC(carbon diox

59、ide) = _; TC(water) = _,December 4, 2020,Slide 124,Introduction to Aspen Plus,Physical Properties Workshop (Continued),Optional Part: Objective: Generate a table of compositions and vapor pressure for each liquid phase (L1 and L2) at different temperatures for a mixture of water and oil.,In addition to the interactive Analysis commands under the Tools menu, you also can create a Property Analysis manually, using forms. Manually generated Properties Analyses are created using the Properties Analysis Object Manager. Manu