ENGINEERING GRAPHIC BKF3522

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ENGINEERING GRAPHICBKF3522

• Prepared By
• Miss Fathie binti Ahmad Zakil
• Chemical Eng. Department, FKKSA UMP
• Email fathie_at_ump.edu.my
• H/P 019-7319273 A1-12

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Assessments Plan

• PROJECT 1 10
• PROJECT 2 10
• TEST 1 10
• PROJECT 3 10
• PROJECT 4 10
• TEST 2 10
• PROJECT 5 10
• PROJECT 6 10
• FINAL TEST 20

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Syllabus

• Aspen Plus 12.1 Simulation
• -Introduction of Engineering Drawing and
  Process Simulation
• -Aspen Plus Process Simulation Model
• -Aspen Plus Basics
• -Aspen Plus Dynamics
• Microsoft Visio 2007
• -Introduction to Microsoft Visio
• -Basics Drawing of PFD and PID
• -Chemical PFD Designs
• -P ID Designs
• -Details PFD and P ID design in Chemical
  Process

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Continue

• Solid Works 2008
• -Parts
• -Assemblies
• -3D Drawing
• -Applications of Solid Work
• Auto CAD 2008
• -Introduction to AutoCAD 2008
• -Basics to Dimensional Entities
• -Text Dimensions and Other Complex Entities
• -Geometric Drawing
• -Orthographic Drawing
• -Isometric Projection

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CHAPTER 1

• ASPEN PLUS 12.1 SIMULATION

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Outline

• 1.1 Introduction of Engineering Drawing and
  Process Simulation
• 1.2 Aspen Plus Process Simulation Model
• 1.3 Aspen Plus Basics
• 1.4 Aspen Plus Dynamics

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1.1 Introduction to Engineering Drawing Process
Simulation

• 1.1.1 What is Engineering Drawings?
• Engineering drawing is a formal and precise way
  of communicating information about the-
• -shape
• -size
• -features and
• -precision of physical objects
• Drawing is the universal language of engineering
  that use to communicate with eng., technicians,
  etc.
• Its purpose is to accurately and unambiguously
  capture all the geometric features of a product
  or a component.

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• 1.1.2 Engineering Drawing Standards
• The American National Standards Institute (ANSI)
• Units Inch
• International Organization for Standardization
  (ISO)
• Units milimeter(mm)

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• 1.1.3 Traditional Eng. Drawing Tools

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• 1.1.4 Modern Eng. Drawing Tools
• Softwares. Why Use Softwares?
• Paperless
• Easy Handling
• User-friendly command
• More precise
• Common software used for engineering drawing
  AUTOCAD, ASPENTECH, VISIO, SOLID WORKS.

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What is engineering graphic?

• Graphics refers to any computer device or program
  that makes a computer capable of displaying and
  manipulating pictures.
• Use latest software to design engineering objects
  and flowsheets.

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Basic Information Included in a Drawing

• Projected Views Show as many sides as needed
  for completeness.
• Cross Sections A view that is good for showing
  interior features.
• Table Lower right corner, with material
  information, part name, designer etc
• DIMENSIONS!!! These are the most important and
  most complicated part of the drawing. There is
  more to it than just the numerical values!

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Projected Views
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A Table Example
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Dimensions

• Dimensions tell how far it is from one point on
  an object to another point.  The most basic type
  is called a Linear Dimension because it gives the
  straight-line distance from one point to
  another.  There are also Radial, Diameter and
  Angular Dimensions.
• Dimensions have four basic components
• Dimension Text
• Dimension Line and Arrows
• Extension Lines
• Gap

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A Dimensioning Example
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Scaling

• Scaling is used to depict objects on paper that
  are either larger or smaller than the paper.
• If the object is larger than the paper, then the
  views of the object are scaled Down
• If the object is smaller than the paper, then the
  views of the object are scaled Up
• If the object fits on the paper, then the views
  are depicted at Full scale  (11)

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Process Simulation

• Is the action that executes all necessary
  calculations needed to solve the outcome of the
  system, hence predicting its behavior
• It involves the decomposition of the process into
  its constituent elements (e.g. units) for
  individual study of performance
• The process characteristics are predicted using
  analysis techniques
• Will be given the process inputs and flowsheet
  and are required to predict process outputs (Fig.
  1)

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• Examples of common simulator Design II,
  SuperPro, ChemCAD, Hysis, MATLAB which use the
  underlying physical relationships to predict
  process performance

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1.2 ASPEN PLUS Process Simulation Model

• ASPEN PLUSTM allows you to create your own
  process model, starting with the flowsheet, then
  specifying the chemical components and operating
  conditions.
• ASPEN PLUSTM will take all of your specifications
  and, with a click of the mouse button, simulate
  the model.
• ASPEN PLUSTM lists the results, stream by stream
  and unit by unit, so you can observe what
  happened to the chemical species of your process
  model

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ASPEN PLUS outcomes

• Become familiar with the Aspen Plus graphical
  user interface
• Enter basic input required for a simulation
• Review major unit operation models, such as flash
  drums, heaters, reactors and columns discuss
  flowsheet handling
• To learn the basic concepts required to model and
  analyze steady-state processes using Aspen Plus

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1.3 ASPEN PLUS Basics
I - How Do I Start????
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ASPEN Plus will display the User Interface (Fig.
4). Features of the User Interface Menus
are used to specify program options and commands
Toolbar allows direct access to commonly-used
functions Data Browser is used to navigate
folders, forms, and sheets. Sheets make up
forms and forms make up folders (a sheet in a
form in a folder). Folders are the root items
in the Data browser. Forms are located in
folders and are used to enter data and view
simulation results. Sheets are contained in
folders and are selected using tabs at the top of
each sheet.
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II-Mouse Functions Left Button Click
Select object/field Right Button Click
Bring up a menu for a selected object/field
Double Left Click Open Data Browser object
sheet.
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III - How to Draw a Flowsheet? ??? You need to
draw blocks and connect them with streams. In
order to place a block Click (left button
click) on a model category tab in the Model Menu
Tabs Click on a unit operation in the Model
Library. Click (left) on the drop-down arrow to
how you want to draw the unit. Click (left) on
the icon and drag it onto Process Flowsheet
Window. If instead of dragging the icon, you
click on it you will see the sign when you move
to the Process Flowsheet Window. This signals
that you are in a multiple entry mode. In this
case each time you click (left), you will be
repeatedly placing the block. To stop the
repeated placing blocks, click (right mouse
button) anywhere in the Process Flowsheet Window
or click (left mouse button) on the Select Mode
Button to stop placing blocks.
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As an illustration, suppose we would like to draw
a compressor. First, we click on the Pressure
Changers unit operation model, then we click on
the compressor block, then we click on the
drop-down arrow to choose an icon for the
compressor (Fig. 5a).
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IV - Useful Symbols Figure 6 illustrate some of
the symbols that are commonly used in ASPEN Plus.
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V - The Data Browser The Data Browser is a sheet
and form viewer with a hierarchical tree view of
the available simulation input, results, and
objects that have been defined. To open the Data
Browser Click the Data Browser button on
the Data Browser toolbar. Or, From the Data
menu, click Data Browser. The Data Browser
also appears when you open any form. Use the
Data Browser to Display forms and sheets and
manipulate objects View multiple forms and
sheets without returning to the Data menu, for
example, when checking Properties Parameters
input Edit the sheets that define the input
for the flowsheet simulation Check the status
and contents of a run See what results are
available
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VI - Main Data In addition to drawing the
flowsheet, you need to provide data for five main
folders 1. Setup This folder is used to
specify information on the simulation, units,
etc. 2. Components Describes the various
chemical species involved in the process. 3.
Properties Allows you to choose the
thermodynamic model(s) for estimating properties.
4. Stream This folder is where you enter
stream data. 5. Blocks Folder for
providing data on the process equipment.
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Opening File

• 2 methods
• Double clicking the file in Windows
• Selecting the Open command from the File menu in
  Aspen Plus
• From the File menu, select Open.
• Click Yes to close the current run before opening
  a new run.

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Selecting Flowsheet Objects

• 1. Must know what kinds of the equipments that
  will be used.
• 2. Must know how to arrange the equipments.
• 3. Draw the equipments first, then follow by
  streams.

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Example

• 1.The simulation has one feed stream (stream 1),
  two product streams (streams 2 and 3), one unit
  operation block (B1).
• 2.Select the feed stream (stream 1) on the
  process flowsheet an enter specifications.

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Using a Shortcut Menu

• A shortcut menu of commands is available for the
  flowsheet objects.
• Select Stream 1 click the right mouse button
• The stream shortcut menu appears. Listing the
  executable commands for stream 1.
• Use the Up and Down arrow keys to highlight the
  commands in the shortcut menu.

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Opening Input Sheets

• 1.To specify the components of a stream and
  properties temperature etc
• 2. 4 methods
• from menu bar, select Data, Data Browser, then
  use the Data Browser menu tree to navigate to the
  Streams ? 1 I Input I Specifications sheet.
• From menu bar, select Data then select Streams.
• Click the streams button in the Data Browser
  toolbar, then use the Data Browser , menu tree to
  navigate to the Streams I 1 I Input I
  Specifications sheet.
• From the stream 1 shortcut menu, select Input.
• Tip to open a stream or block input sheet
  quickly, double click the object from the process
  flowsheet

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Using Help

• 1. About various field in Aspen Plus.
• 2. Can get help on any topic at any time by using
  the Help menu.
• 3. Methods
• Click , then click the box or sheet
• From menu bar, click Help, select Whats This?,
  then click the box or sheet
• Click the box or sheet, then press F1 (the help
  key)
• When finished, click x to close the help
  window.

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Entering Data on a Sheet

• 1.Once an input sheet is open, state variables,
  units and numeric data may be entered into the
  available fields (white rectangular boxes).
• 2.2 ways to move from field to field
• press the Tab on keyboard
• position the cursor in the field and left-lick
• e.g Enter missing temperature, pressure and
  component flow data for Stream 1.

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Example

• 1. If necessary click in the Stream 1
  Specifications sheet to make it active.
• 2. Enter the following state variable and
  component flow specifications

When all required specifications have been
entered, a check mark (v) appears on the tab
containing the sheet name. Check marks also
appear in the Data Browser menu tree.
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Expert Guidance - the Next Function

• 1.The Aspen Plus expert system, known as the Next
  function, guides through all the steps for
  entering specifications for simulation model.
• 2.The Next function
• Guides through the required and optional input
  for a simulation by displaying the appropriate
  sheets
• Displays messages informing what need to do next
• Ensures that do not enter incomplete or
  inconsistent specifications even when change
  options specifications that have already
  entered

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Running the Simulation

• 1.The input specifications are complete, then the
  simulation is ready to be run.
• 2.Methods
• From menu bar, select Run then select Run
• From toolbar, click
• Click to open the Control Panel, then click
  from the Control Panel
• Press F5
• Once the process flowsheet has been fully
  specified, running the simulation is easy.

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Examining Stream Block Results

• 1. To view the results of simulation.
• 2. Select stream 2 right-click on the stream to
  display the shortcut menu.
• 3. From the shortcut menu, select Results.
• The Data Browser window opens with the
  Streams I 2 I Results I Material sheet in view,
  providing the thermodynamic state composition
  flows
• 4. From the Data Browser menu tree, double-lick
  Blocks, then double-click B1.
• 5. Click to browse through the results.

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Modifying Rerunning Model

• 1. From the process flowsheet, select right
  click Stream 1 to display the stream shortcut
  menu.
• 2. Select Input.
• 3. The Data Browser window opens with the Streams
  I 1 I Input I Specifications sheet in view.

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Saving File Exiting Aspen Plus

• To change the save option
• 1. From menu bar, select Tools, then Option.
• 2. On the general tab, in the save option area,
  select the check box next to Always create backup
  copy.
• 3. Make sure Aspen Plus Documents (.apw) appears
  in the Save documents as filed
• 4. Click OK.

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• To save exit
• From menu bar, select File, then select Save as.
• Click Save.
• From menu, click File select Exit.