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Introduction to DESIGN II for Windows Instructor: Murugan Selvan
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Scopes Covered The DESIGN II for Windows interface Tutorial 1: How DESIGN II works How to draw a flowsheet Component selection & input Equipment specification Execute the simulation The simulation results interface
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Getting Started Double-click on the DESIGN II for Windows icon on the your PC desktop Alternate way: “Start / Program / DESIGN II / DESIGN II for Windows”. Maximize the DESIGN II window.
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From the Start Button
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The License Window
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Setting for New Drawing
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DESIGN II Interface New drawing Saving a file Text Line Opening a file Equipment Arrow Zoom Out Zoom In Printing
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Tutorial 1: Expander Plant
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Expander Plant: Flowsheet Description Flowsheet description: A single stage expansion of a light hydrocarbon stream First, feed stream is cooled through a feed chiller (X-1) & any liquid is removed with a vertical separator (F-2). The vapor is expanded (E-4) & liquids separated using a second vertical separator (F-3).
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Expander Plant: Equipment Specifications EquipmentTagSpecification Feed chillerX-1Temp out = 35ºF Delta pressure = 10 psi 2 vertical separator F-2Adiabatic flash Delta pressure = 0 ExpanderE-4Pressure out = 275 psig Efficiency = 0.80
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Expander Plant: Feed stream & Basic Thermodynamics Specifications ComponentLbmol/hrSpecifications Methane6100 T = 90ºF P = 980 psig Ethane500 Propane200 N-Butane100 N-Pentane100 N-Hexane70 Thermodynamics methods used: K-Value = API Soave Enthalpy = API Soave Density = Yen Woods (STD) Feed stream specification:
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Lay Out the Equipment
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Showing Snap Points
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Equipment with Snap Points
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Adding Streams & Labels
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Adding Flow Direction Arrows
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Add a Title to the Drawing
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Working Session Before we proceed further, let’s look through a process simulation diagram (PSD) practice.
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Flowsheet Specification & Execution
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Specify the Feed Stream
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Stream Specification Windows
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Component Selection Windows
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Search Your Components: by Name
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Select all the Components in the System
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Back to the Stream Specification Window
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Enter Equipment Specification: X-1
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Equipment Specification Window
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HEX (X-1) Specification Window
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Flash Drum Specification
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F-1 Specification Window
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Expander Specification
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E-3 Specification Window
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Back to DESIGN II Window
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Specify the Thermodynamics Methods
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Thermodynamics Specification Window
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To Execute the Simulation
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SOLUTION HAS BEEN REACHED!!!
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Working Session Remember, as always practice make perfect!
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DESIGN II Results Interface DESIGN II native output file Microsoft Excel interface
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SOLUTION HAS BEEN REACHED!!!
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View the Simulation Results
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Simulation Result in Excel Interface MS Excel
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Simulation Result in Excel Interface View result in Spreadsheet: Stream Summary: only stream data & results Equipment Summary: only equipment summaries are displayed Material Summary: Material balances results are displayed The Works: All results are transferred to EXCEL
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Stream Summary in DESIGN II Output File
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Stream Summary in MS Excel
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Right Click to get the Stream Result
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Stream Specification Window Again … Stream Result
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Result of Stream 7
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Stream Data Box Path: Simulation / Stream Data Box
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Showing All Streams in Data Box
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… or Select as Your Wish
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Stream Data Box Details
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Changing Units in Stream Data Box
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Stream Data Box Items 1
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Working Session Let’s try it again …
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Thank You
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