lecture 2 - intro to hysys
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8/10/2019 Lecture 2 - Intro to HYSYS
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Getting started with Aspen HYSYS
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H82CYS - Computer System Getting Started with HYSYS 2
Various unit operations in HYSYSReactors:
Continuous-stirred tankreactor (CSTR)Conversion ReactorEquilibrium reactorGibbs reactorPlug flow reactor (PFR)
Heat transfer equipment:Air coolerCoolerFired heaterHeat exchanger
HeaterRotating equipment:CompressorExpanderPump
Pre-built columns:3 stripper crude4 stripper crudeAbsorberDistillationFCCU main fractionatorLiquid-liquid extractor
Reboiled absorberRefluxed absorberThree phase distillationVacuum resid tower
Solid handlingBaghouse filterCycloneHydrocycloneRotary vacuum filterSimple solid separator
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Getting started
Path: Start/AspenTech/Aspen
Engineering Suite/Aspen HYSYS2006.5/Aspen HYSYS 2006.5
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Getting started
Select
AcademicUser
Select OK
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To maximise view
Unselect this
Maximise theflowsheet
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HYSYS interface
Start a new
flowsheet
Open anexisting file
Save asimulation file
Menu bar
Toolbar
Status barObjectstatus
windowTrace
window
Performanceslider
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Building a new flowsheet
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Example 1 - Water cooling
Water stream of 120C is cooled by a chiller(heat exchanger).A total of 120 MJ/h of heat is to be removedfrom the chiller.Task: determine the outlet temperature fromthe chiller.
Water100 kPa & 120C
?? C
120 MJ/h
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Basic simulation steps
Input topology of flowsheet 3
Select thermodynamic model 2
Select convergence criteriaand run simulation 7
6Select output display options
Sequence of input steps for asimulation problemBasic computational elements
in process simulatorComponent
database1
Thermodynamicmodel solver2
Flowsheet builder3
Unit operationblock builder4
Data output
generator5
Flowsheet solver6
Select chemical components 1
Select units and select feedstream properties 4
Select equipment parameters 5
(Turton et al . , 1998)* Other commonly found features: file control
options, eng units options, data regression, etc.
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Start a new flowsheet
Start a newflowsheet
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Simulation Basis Manager
Componentdatabase tab
Thermodynamicmodel tab
Reaction tab
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Add component from database Add
componenthere
Add water here@ double click@ click ENTER
Type waterhere
Remove (only ifyou have added
wrongly)
Sim name : nameappearing withinsimulation
Full Name/Synonym : IUPACname & synonyms
Formula : chemical
formula of component
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View component properties
Select thecomponent
Viewproperties
here
Close
Close
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Back to Simulation Basis Manager
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Basic simulation steps
Input topology of flowsheet 3
Select thermodynamic model 2
Select convergence criteriaand run simulation 7
6Select output display options
Sequence of input steps for asimulation problemBasic computational elements
in process simulatorComponent
database1
Thermodynamicmodel solver2
Flowsheet builder3
Unit operationblock builder4
Data output
generator5
Flowsheet solver6
Select chemical components 1
Select units and select feedstream properties 4
Select equipment parameters 5
(Turton et al . , 1998)* Other commonly found features: file control
options, eng units options, data regression, etc.
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Define thermodynamic model
Fluid packagetab (HYSYS
thermo model)
Add a fluidpackage
Search forPeng-
Robinson
Close
Rename fluidpackage(optional)
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Back to Simulation Basis Manager
Name of thechosen fluid
package
NC = No ofcomponent
PP =Propertypackage
Click here toenter into
SimulationEnvironment
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The Simulation Environment
The PFD
The Object Palette to add streams and
unit operations open or close by F4Zoom
function
To return toSimulation Basis
Environment
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File saving
Click hereto saveyour file
Maximiseflowsheet
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A saved case
File name
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Basic simulation steps
Input topology of flowsheet 3
Select thermodynamic model 2
Select convergence criteriaand run simulation 7
6Select output display options
Sequence of input steps for asimulation problemBasic computational elements
in process simulatorComponent
database1
Thermodynamicmodel solver2
Flowsheet builder3
Unit operationblock builder4
Data outputgenerator5
Flowsheet solver6
Select chemical components 1
Select units and select feedstream properties 4
Select equipment parameters 5
(Turton et al . , 1998)* Other commonly found features: file control
options, eng units options, data regression, etc.
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Place theCooler here
Flowsheet topology
Select a MaterialStream
Select aCooler
Colour code of HYSYS: Red - A major piece of
information is missing Yellow - All major info is
present, but the stream /operation has not been solved
because 1 or more degrees offreedom is present. Green - The stream/operation is
completely defined & solved .
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Connecting the stream (attach mode)
Attach mode
Steps for making a connection:1. Ensure you see a small transparent
box appears at the cursor tip, with apop-up description attached to thecursor tail ( Out in this case)
2. Left-lick and hold the cursor, thetransparent box becomes solid black,indicating that you are beginning aconnection.
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Connecting the stream (continue)
Steps for making a connection:3. Drag the cursor (while still
clicking on it) toward the leftside of the Cooler.
4. Place the cursor near theconnection point, and releasethe cursor, the stream will snapto that point.
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Do the same for outlet stream
Steps for making a connection:1. Position the cursor over the
right end of the Cooler icon.2. Left-click and hold the cursor.3. Move the cursor to the right of
the Cooler.4. Release the cursor
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An energy stream is needed for a cooler
The icon changeto yellow now
Colour code for streams: Light blue :
incompletely specified Royal blue : properly
specified
Energy stream
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To remove a unit/stream (optional)
Unselect Attach mode
Note: Dont remove thestream (this is for
demonstration only)
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Basic simulation steps
Input topology of flowsheet 3
Select thermodynamic model 2
Select convergence criteriaand run simulation 7
6Select output display options
Sequence of input steps for asimulation problemBasic computational elements
in process simulatorComponent
database1
Thermodynamicmodel solver2
Flowsheet builder3
Unit operationblock builder4
Data outputgenerator5
Flowsheet solver6
Select chemical components 1
Select units and select feedstream properties 4
Select equipment parameters 5
(Turton et al . , 1998)* Other commonly found features: file control
options, eng units options, data regression, etc.
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Feed stream specification
Double click onthe streams
Temp = 120 C;Pressure = 100 kPa
(key in value &press ENTER)
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Feed stream specification
Select MassFlows
Enter 50 kg/h &press ENTER
Enter OK toexit
Click on Edit
Click onComposition
Close toreturn to PFD
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Basic simulation steps
Input topology of flowsheet 3
Select thermodynamic model 2
Select convergence criteriaand run simulation 7
6Select output display options
Sequence of input steps for asimulation problemBasic computational elements
in process simulatorComponent
database1
Thermodynamicmodel solver2
Flowsheet builder3
Unit operationblock builder4
Data outputgenerator5
Flowsheet solver6
Select chemical components 1
Select units and select feedstream properties 4
Select equipment parameters 5
(Turton et al . , 1998)* Other commonly found features: file control
options, eng units options, data regression, etc.
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Equipment specification
Double click onthe Cooler
Object statuswindow
Stream change toRoyal blue
(properly specified)
Click onParameters
Close toreturn to PFD
Delta P = 0 kPa;Duty = 120 MJ/h
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Basic simulation steps
Input topology of flowsheet 3
Select thermodynamic model 2
Select convergence criteriaand run simulation 7
6Select output display options
Sequence of input steps for asimulation problemBasic computational elements
in process simulator
Componentdatabase1
Thermodynamicmodel solver2
Flowsheet builder3
Unit operationblock builder4
Data outputgenerator5
Flowsheet solver6
Select chemical components 1
Select units and select feedstream properties 4
Select equipment parameters 5
(Turton et al . , 1998)* Other commonly found features: file control
options, eng units options, data regression, etc.
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Set session preference
Selectvariable tab
Select SIunit
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Customise the unit set (optional)
DuplicateRename
Delete
Close
Select SIunit
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Basic simulation steps
Input topology of flowsheet 3
Select thermodynamic model 2
Select convergence criteriaand run simulation 7
6Select output display options
Sequence of input steps for asimulation problemBasic computational elements
in process simulator
Componentdatabase1
Thermodynamicmodel solver2
Flowsheet builder3
Unit operationblock builder4
Data outputgenerator5
Flowsheet solver6
Select chemical components 1
Select units and select feedstream properties 4
Select equipment parameters 5
(Turton et al . , 1998)* Other commonly found features: file control
options, eng units options, data regression, etc.
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Simulation execution
Solver Active button ( green ): Unlikeother simulation softwares, HYSYS
solves the flowsheet after eachaddition/change to the flowsheet
(default setting). This feature can be
disabled by clicking the SolverHolding button ( red )
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View simulation results (PDF)
Streamresult
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View simulation results (Workbook)
Click here tosee the
Workbook
New Workbookmenu appears
Vapour fractionchanges (1 0)
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Congratulation forconverging the firstHYSYS simulation file Remember to save your file
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