CHEMCAD 6 User Guide - Online

5/26/2018 CHEMCAD 6 User Guide - Online

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CHEMCAD Version 6User Guide


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Allmaterial2007Chemstations,Inc.


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CHEMCADVersion6UserGuide i

CHEMCAD Version 6 User GuideTable of Contents

Chapter1IntroductiontoCHEMCAD ..............................................................................................1

OverviewofCHEMCADandItsUses................................................................................................1

CHEMCADProductsandFeatures .................................................................................................3

CC-STEADY STATE .......................................................................................................................................3

CC-DYNAMICS ...............................................................................................................................................3

CC-BATCH.......................................................................................................................................................3

CC-THERM.......................................................................................................................................................3

CC-SAFETY NET.............................................................................................................................................3

CC-FLASH........................................................................................................................................................3

CHEMCADFeaturesbyModule......................................................................................................4

UnitOpsbyModule............................................................................................................................5

Chapter2GettingStartedwithCHEMCAD.....................................................................................7

InstallingtheSoftware...........................................................................................................................7

LicensingCHEMCAD .........................................................................................................................10

TypesofCHEMCADLicenses........................................................................................................10

LicenseSettings.................................................................................................................................11

Updating

a

License ........................................................................................................................... 12GettingHelpwithCHEMCAD ..........................................................................................................14

OnlineHelp .......................................................................................................................................14

CHEMCADCoach............................................................................................................................15

ProcedureDemos..............................................................................................................................15

TheChemstationsWebSite.............................................................................................................15

ContactingChemstationsTechnicalSupport ...............................................................................15


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TableofContents

ii CHEMCADVersion6UserGuide

Chapter3TheCHEMCADInterface................................................................................................17

TheCHEMCADWindow ...................................................................................................................17

TheWorkspace..................................................................................................................................18

TheCHEMCADExplorerPane ......................................................................................................18

The Recent Files Tab.......................................................................................................................................19The Simulation Tab .........................................................................................................................................19

The Visual Basic Tab.......................................................................................................................................20

ThePalettePane................................................................................................................................20

Selecting a Palette............................................................................................................................................20

Customizing Palettes .......................................................................................................................................21

TheMessagesPane...........................................................................................................................22

The Errors and Warnings Tab..........................................................................................................................22

The Run Trace Tab ..........................................................................................................................................22

The Notes Tab .................................................................................................................................................23

TheMain

Menu.................................................................................................................................23

TheToolbar........................................................................................................................................23

CustomizingtheCHEMCADScreen.................................................................................................23

ViewingandHidingScreenElements ...........................................................................................24

ResizingandMovingItems.............................................................................................................24

Resizing a Pane................................................................................................................................................24

Moving a Pane.................................................................................................................................................25

PinningandUnpinningPanes........................................................................................................25

OtherUsefulInterfaceHints...............................................................................................................26

Undoand

Redo ................................................................................................................................. 26

VisibleGrid........................................................................................................................................26

AdjustingYourViewoftheWorkspace........................................................................................27

TheCHEMCADCoachPane ..........................................................................................................27

Chapter4WorkingwithSimulationFiles ......................................................................................29

AboutCHEMCADSimulationFiles..................................................................................................29

UserComponentsinCHEMCAD ..................................................................................................30

ExampleFiles.....................................................................................................................................30

OpeninganExistingSimulation ........................................................................................................31

CreatingaNewSimulation.................................................................................................................31

SavingaSimulation..............................................................................................................................32

SavingDifferentCasesfortheSameSimulation..........................................................................32

EmailingaSimulation ........................................................................................................................ 33

WorkingwithCHEMCADFilesfromPreviousVersions ..............................................................33


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TableofContents

CHEMCADVersion6UserGuide iii

Chapter5BuildingandUsingaBasicSimulation ........................................................................35

StartingaNewSimulation..................................................................................................................35

SelectingEngineeringUnits................................................................................................................36

DrawingtheFlowsheet........................................................................................................................36

AddingUnitOps ...............................................................................................................................36

SelectingaDefaultIconforaUnitOp ............................................................................................37

ManipulatingUnitOpIcons ............................................................................................................38

DrawingandConnectingaStream ................................................................................................38

Choosing a Stream Route ................................................................................................................................39

Rerouting a Stream..........................................................................................................................................39

OtherDrawingTools........................................................................................................................40

The Text Tool ..................................................................................................................................................40

Simple Drawing Tools: Rectangle, Ellipse, and Line......................................................................................40

Complex Drawing Tools: Multi-line and Polygon ..........................................................................................40

SelectingChemicalComponents........................................................................................................41

FindingaComponent ......................................................................................................................41

AddingaComponent.......................................................................................................................42

ChangingtheOrderofSelectedComponents..............................................................................43

RemovingItemsfromtheSelectedComponentsList .................................................................43

SelectingKvalueandEnthalpyOptions ..........................................................................................44

UsingtheThermodynamicsWizard..............................................................................................44

Selecting Components to Ignore......................................................................................................................44

Specifying Process Conditions ........................................................................................................................44

How the Thermodynamics Wizard Makes Suggestions ..................................................................................44

Should the Thermodynamics Wizard be trusted to make design decisions? ...................................................45

ManuallySelectingThermodynamicsSettings ............................................................................45

DefiningStreams .................................................................................................................................. 46

ThermodynamicProperties.............................................................................................................46

StreamComposition.........................................................................................................................46

TotalFlowProperties ....................................................................................................................... 47

SpecifyingEquipmentParameters.....................................................................................................47

Running

the

Simulation.......................................................................................................................48

ReviewingtheResults..........................................................................................................................48


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TableofContents

iv CHEMCADVersion6UserGuide

Chapter6UsingCHEMCADforHighfidelityModeling...........................................................49

Whatishighfidelitymodeling?.........................................................................................................49

CriteriaforHighfidelityModeling ...................................................................................................50

IntroductiontoEquipmentSizing .....................................................................................................50

Highfidelity

Modeling

and

Sizing

for

Common

UnitOps ............................................................51

Piping..................................................................................................................................................51

Low-fidelity.....................................................................................................................................................51

Sizing...............................................................................................................................................................51

High-fidelity ....................................................................................................................................................51

Pumps,Compressors,andExpanders...........................................................................................52

Low-fidelity.....................................................................................................................................................52

High-fidelity ....................................................................................................................................................52

VesselsandTanks.............................................................................................................................52

Low-fidelity.....................................................................................................................................................52

Sizing...............................................................................................................................................................53High-fidelity ....................................................................................................................................................53

Valves ................................................................................................................................................. 53

Low-fidelity.....................................................................................................................................................53

Sizing...............................................................................................................................................................54

High-fidelity ....................................................................................................................................................54

Columns ............................................................................................................................................. 54

Low-fidelity.....................................................................................................................................................54

Sizing...............................................................................................................................................................54

High-fidelity ....................................................................................................................................................55

HeatExchangers ...............................................................................................................................56

Low-fidelity.....................................................................................................................................................56

Sizing...............................................................................................................................................................56

High-fidelity ....................................................................................................................................................56

ReliefDevices ....................................................................................................................................57

Low-fidelity.....................................................................................................................................................57

High-fidelity ....................................................................................................................................................58

LicensingConsiderationsforHighfidelityModeling....................................................................58


Chapter

7

Building

and

Using

a

Dynamic

Simulation................................................................. 59Whatdowemeanbydynamics? ....................................................................................................... 59

LicensingConsiderations .................................................................................................................... 59


AdditionalInputforDynamicOperation.........................................................................................60

StrategiesforDynamicSimulations...............................................................................................61


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CHEMCADVersion6UserGuide v

SettingUpDynamicOperation..........................................................................................................61

SwitchingtoDynamics ....................................................................................................................61

SettingtheRunTime........................................................................................................................63

SelectingStreamsandUnitOps ......................................................................................................65

RunningaDynamic

Simulation ......................................................................................................... 66

RunfromInitialState ....................................................................................................................... 66

RunfromCurrentState....................................................................................................................66

RunOneStepataTime ................................................................................................................... 67

OtherDynamicCommands................................................................................................................67

ResettoInitialState .......................................................................................................................... 67

SaveAsInitialState .......................................................................................................................... 68

OutputfromDynamicSimulations ...................................................................................................68

ReviewingtheFlowsheetSpecifications........................................................................................68

PlottingDynamicResults ................................................................................................................ 69

TextbasedDynamicReports ..........................................................................................................69

Chapter8OutputandReports...........................................................................................................71

TextReports ..........................................................................................................................................71

ReportSetup ...................................................................................................................................... 71

StreambasedReports.......................................................................................................................72

Stream Groups .................................................................................................................................................72

Stream Compositions.......................................................................................................................................74

Stream Properties.............................................................................................................................................75

Particle Size Distribution.................................................................................................................................76Pseudocomponent Curves................................................................................................................................76

UnitOpbasedReports......................................................................................................................76

UnitOp Groups ................................................................................................................................................76

Select UnitOps.................................................................................................................................................77

Spec Sheet........................................................................................................................................................77

Distillation.......................................................................................................................................................78

FlowsheetbasedReports.................................................................................................................78

Topology..........................................................................................................................................................78

Thermodynamics .............................................................................................................................................78

Mass and Energy Balances ..............................................................................................................................79

DynamicsReports.............................................................................................................................79

Batch Results ...................................................................................................................................................79

Dynamics.........................................................................................................................................................79

ConsolidatedReport.........................................................................................................................79


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vi CHEMCADVersion6UserGuide

GraphicalReports.................................................................................................................................80

ThermophysicalDataGraphs .........................................................................................................80

TPXY...............................................................................................................................................................80

Binary LLE......................................................................................................................................................80

Binodal Plot .....................................................................................................................................................80

Binodal/Residue Curves ..................................................................................................................................80

Residue Curves................................................................................................................................................80

FlowsheetbasedGraphs..................................................................................................................80

UnitOpbasedPlots ..........................................................................................................................81

Tower Profiles .................................................................................................................................................81

Heat Curves .....................................................................................................................................................81

Plug Flow Reactor Profile ...............................................................................................................................81

Pipe Profile ......................................................................................................................................................81

Controller Convergence...................................................................................................................................81

DynamicPlots ...................................................................................................................................81

UserspecifiedFile ............................................................................................................................81

PrintingCHEMCADReports ............................................................................................................. 82

ProcessFlowDiagrams .......................................................................................................................82

FlowsheetDataboxes........................................................................................................................82

Stream Boxes...................................................................................................................................................82

UnitOp Boxes ..................................................................................................................................................83

TP Boxes .........................................................................................................................................................83

Excel Range Boxes..........................................................................................................................................84

UsingtheLayersFeatureforSelectiveViewingandPrinting ...................................................85

Scenarios for Using Layers..............................................................................................................................85Creating a New layer .......................................................................................................................................86

Assigning Objects to a Layer...........................................................................................................................87

Hiding and Viewing Layers.............................................................................................................................88

Removing an Object from a Layer ..................................................................................................................88

Deleting an Entire Layer..................................................................................................................................88

PrintingaProcessFlowDiagram ...................................................................................................88

Chapter9CustomizingCHEMCAD ................................................................................................91

FlowsheetTemplates ...........................................................................................................................91

CreatingaTemplate ......................................................................................................................... 92

ViewingaTemplatesProperties....................................................................................................92

ApplyingaTemplate........................................................................................................................92

RenamingorDeletingaTemplate..................................................................................................92


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CHEMCADVersion6UserGuide vii

CreatingCustomComponents...........................................................................................................93

AddingaSingleComponent...........................................................................................................93

Creating the Component..................................................................................................................................93

Regressing Data into the Component ..............................................................................................................95

PseudocomponentRange ................................................................................................................ 96

ImportingaNeutralFile ..................................................................................................................97

CreatingaCustomSymbol ................................................................................................................. 98

CustomizedCostingCalculations....................................................................................................100

CreatingCustomUnitOps ................................................................................................................100

CreatingaCustomUnitOpDialogBox .......................................................................................101

CustomizingThermodynamics........................................................................................................102

CreatingaCustomKvalueorEnthalpyModel.........................................................................102

CreatingaCustomMixingRule ................................................................................................... 104

VisualBasic

Applications

(VBA)......................................................................................................104

DefiningaReaction,MixingRule,orUnitOp ............................................................................104

UsingaVBAdefinedReaction .....................................................................................................105

UsingaVBAdefinedMixingRule...............................................................................................106

UsingaVBAdefinedUnitOp ....................................................................................................... 106

Chapter10DataInterfaces ............................................................................................................... 107

ExcelDataMapping...........................................................................................................................107

CreatinganExcelDataMap..........................................................................................................108

DataMapExecutionRules ............................................................................................................111

CreatingExcelUnitOps ..................................................................................................................... 113

SpecificationSheets............................................................................................................................113

UsingCHEMCADasanOPCServer .............................................................................................. 114

OPCApplications ........................................................................................................................... 114

OPCCompliance.............................................................................................................................114

EnablingCHEMCADasanOPCServer .....................................................................................115

ReadingandWritingValuestoCHEMCADUsingOPC ......................................................... 115

OPCServerOperations..................................................................................................................115

CHEMCADOPC

Namespace.......................................................................................................116

COMInterfaces...................................................................................................................................117

ConnectingExcelandCHEMCAD:ASimpleCOMInterface................................................. 117

Using the VBClient Example ........................................................................................................................118

A Peek under the Hood..................................................................................................................................118


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TableofContents

viii CHEMCADVersion6UserGuide

Chapter11CHEMCADTutorials ...................................................................................................121

CCSTEADYSTATETutorial ...........................................................................................................122

Overview..........................................................................................................................................122

StartingaNewSimulation ............................................................................................................123

SelectingEngineering

Units ..........................................................................................................123

DrawingtheFlowsheet..................................................................................................................123

Placing UnitOps.............................................................................................................................................123

Drawing Streams ...........................................................................................................................................126

SelectingComponents.................................................................................................................... 126

SelectingThermodynamicOptions..............................................................................................128

DefiningtheFeedStreams.............................................................................................................130

EnterUnitOpParameters ..............................................................................................................132

First Heat Exchanger .....................................................................................................................................132

Second Heat Exchanger.................................................................................................................................133Flash Drum ....................................................................................................................................................133

Valve..............................................................................................................................................................133

Stabilizer Tower ............................................................................................................................................134

RuntheSimulation.........................................................................................................................134

ReviewtheResultsandPrintasNeeded.....................................................................................134

Checking the Cricondentherm Dewpoint.......................................................................................................134

Checking the Bottoms Stream Purity.............................................................................................................137

Re-running the Simulation.............................................................................................................................138

Producing a Text Report................................................................................................................................139

Generating a Process Flow Diagram..............................................................................................................140

CCTHERMTutorial..........................................................................................................................144

OverviewoftheHeatExchangerSizingProcess .......................................................................145

IdentifytheTubesideStream.......................................................................................................145

GeneratetheHeatCurve ............................................................................................................... 146

DefineGeneralSpecifications .......................................................................................................147

SetTubeSpecifications...................................................................................................................148

SetShellSpecifications ................................................................................................................... 148

SetBaffleSpecifications..................................................................................................................149

Baffle Spacing ...............................................................................................................................................149Baffle Cut Percent .........................................................................................................................................149

SetNozzleSpecifications ............................................................................................................... 149

SetClearanceSpecifications .......................................................................................................... 150

SetMaterialSpecifications.............................................................................................................151

SetMiscellaneousSpecifications...................................................................................................151

RunSizingCalculations.................................................................................................................151


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CHEMCADVersion6UserGuide ix

ReviewResultsandCreatePlots ..................................................................................................152

CCBATCHTutorial ..........................................................................................................................154

DescriptionoftheProblem............................................................................................................154

OverviewoftheBatchDistillationProcess................................................................................. 155

CreatingaNew

Simulation...........................................................................................................156

SelectingEngineeringUnits ..........................................................................................................156

DrawingtheFlowsheet..................................................................................................................156

Placing UnitOps.............................................................................................................................................156

Drawing Streams ...........................................................................................................................................157

SelectingComponents.................................................................................................................... 158

SelectingThermodynamicOptions..............................................................................................158

SpecifyingPotCharge....................................................................................................................160

SpecifyingtheDistillationColumn .............................................................................................. 162

Definingthe

Operating

Steps........................................................................................................163

Operating Step 1 ............................................................................................................................................163

Operating Step 2 ............................................................................................................................................164

Operating Step 3 ............................................................................................................................................164

Operating Step 4 ............................................................................................................................................165

Operating Step 5 ............................................................................................................................................165

The Run Time Information Dialog Box.........................................................................................................165

RunningtheSimulation.................................................................................................................166

ReviewingandPrintingResults ...................................................................................................167

Plotting the Results........................................................................................................................................167

Generating Text Reports................................................................................................................................168Generating a Full Report ...............................................................................................................................168

PipingTutorial....................................................................................................................................170

ControlValveSizingExample ...................................................................................................... 170

Problem Statement.........................................................................................................................................170

Rating Case....................................................................................................................................................171

Flow Rate as a Function of Pressure..............................................................................................................173

SimpleFlowExample.....................................................................................................................176


Creating the Simulation.................................................................................................................................176

Using Controllers to Simplify the Problem ...................................................................................................178Calculating NPSHA.......................................................................................................................................179

BranchedFlowExample ................................................................................................................ 180


Creating the Simulation.................................................................................................................................180

Running the Simulation.................................................................................................................................182Selecting a Pump ...........................................................................................................................................183

Index ........................................................................................................................................ 185


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TableofContents

x CHEMCADVersion6UserGuide


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CHEMCADVersion6UserGuide 1

Chapter 1Introduction to CHEMCAD

WelcometoCHEMCADVersion6.0,apowerfulandeffectivesoftwaretoolfor

chemicalprocesssimulation.WhetheryoureaneworexperiencedCHEMCADuser,

youllappreciatetheprogramsuserfriendly,featurerichinterface.Creating

flowsheetsandrunningsimulationsisfastandeasywithCHEMCAD,andthe

programishighlycustomizabletofityourneedsandthewayyouwork.

ThismanualwillhelpyougetupandrunningwithCHEMCAD,from

installationandlicensingtotutorialsthatwalkyouthroughrealworldexamples.

Overview of CHEMCAD and Its UsesTodayschemicalprocessingindustry(CPI)facesnumerouschallenges:risingfuel

andfeedstockcosts,reducedengineeringstaff,shorterproductlifecycles,increased

globalcompetition,andincreasedregulation.ThesechallengesrequirethatCPI

companiesseekoutandusethebesttoolstoincreaseproductivityandimprove

engineeringdecisions.

CHEMCADisapowerfulandflexiblechemicalprocesssimulationenvironment,

builtaroundthreekeyvaluesofinnovation,integration,andopenarchitecture.

Thesevalues

create

important

advantages

for

CHEMCAD

users:

Thelatestchemicalengineeringtechniquesatyourfingertips Allfunctionalityunitedinasinglesoftwareenvironment Seamlessconnectiontothechemicalengineeringcomputingenvironment,with

linkstotoolssuchasMSExcelandWordandinterfacessuchasCOM,DCOM,

OPC,CAPEOPEN,andXML


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IntroductiontoCHEMCAD

2 CHEMCADVersion6UserGuide

CHEMCADcombinesastateoftheartgraphicaluserinterface(GUI),an

extensivechemicalcomponentdatabase,alargelibraryofthermodynamicdata,and

alibraryofthemostcommonunitoperationstogiveuserstheabilitytoprovide

significantandmeasurablereturnsontheirinvestment.Inaddition,theprogramis

customizabletoallowcustomchemicals,thermodynamics,unitoperations,

calculations,and

reportingall

ingredients

for

apowerful

user

experience.

CHEMCADiscapableofmodelingcontinuous,batch,andsemibatchprocesses,

anditcansimulatebothsteadystateanddynamicsystems.Thisprogramisused

extensivelyaroundtheworldforthedesign,operation,andmaintenanceofchemical

processesinawidevarietyofindustries,includingoilandgasexploration,

production,andrefining;gasprocessing;commodityandspecialtychemicals;

pharmaceuticals;biofuels;andprocessequipmentmanufacturing.

Withinalloftheseindustries,chemicalengineersworkeverydaywith

CHEMCADtoaddressavarietyofchallenges:

Initialdesignofnewprocesses Optimizationordebottleneckingofexistingprocesses Performancemonitoringofprocesses Designandratingofprocessequipmentsuchasvessels,columns,heat

exchangers,piping,valves,andinstrumentation

Evaluationofsafetyreliefdevices Heatexchangersizing Pressureandflowbalancingofcomplexpipingnetworks Reconciliationofplantdata Economiccomparisonsofprocessalternatives Advancedprocesscontrol(APC),includingmodelpredictivecontrol(MPC),

realtimeoptimization(RTO),andoperatortrainingsystems(OTS)

Scaleupofprocessesfromlabscaletopilotscale,andfrompilotscaletofullscale

Binaryinteractionparameter(BIP)regressionfromprocessorlabdata Batchreactionrateregressionfromprocessorlabdata

Nomatterhowcomplexyourprocess,CHEMCADiscapableofdeliveringthe

resultsyouneedtostaycompetitiveinanincreasinglyfastandfluidglobalmarket.

Easytolearnandhighlycustomizable,CHEMCADcanputfutureproofsolutions

withineasyreachofyourengineeringstaff.


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CHEMCAD Products and Features

TheCHEMCADsuiteconsistsofseveralmodulesthatservespecificpurposes.

Dependingonyourparticularneeds,youmayhavepurchasedsomeorallofthese

modules.ThefollowingarebriefdescriptionsofthevariousCHEMCADmodules

andtheir

most

common

uses.

CC-STEADY STATE

ThemainCHEMCADproduct,knownasCCSTEADYSTATE,enablesyouto

designnewprocesses,rateexistingprocesses,andoptimizeprocessesinsteadystate.

CC-DYNAMICS

ThemoduleknownasCCDYNAMICSmakesitpossibletodesignandrateexisting

processesusingadynamicsimulation.Thismoduleisfullyintegratedwith

CHEMCADtomakeswitchingbetweensteadystateanddynamicseasyand

intuitive.UsingCCDYNAMICS,youcaneasilysimulateeverythingfromsimple

vesselaccumulationtocomplexcontrolsystemsoncolumns.Thismodulealso

providestoolsforsimulationofcontinuousstirredtankreactors(CSTRs),including

complexreactionrateandpressurecalculation.

CC-BATCH

TheCCBATCHproductenablesyoutodesign,rate,oroptimizeabatchdistillation

column.CCBATCHincludesaschedulinginterfacetoallowanoperationstep

approachtosimulationofbatchcolumns.

CC-THERM

TheCC

THERM

product

lets

you

design

asingle

heat

exchanger,

or

vet

avendors

heatexchangerdesign.Itisalsoidealforcustomerswhowanttorateexisting

exchangersinnewservice,ortoperformcalculationsonhypotheticalsituations.CC

THERMcansimulateshellandtube,aircooled,plateandframe,anddoublepipe

exchangers.FullintegrationwithCHEMCADmakesitpossibletocalculateexit

conditionsfromexchangergeometryforhighfidelitysimulations.

CC-SAFETY NET

TheCCSAFETYNETproductprovidesthecapabilitytodesignorratepiping

networksandsafetyreliefdevicesandsystems,inbothsteadystateanddynamic

systems.The

steady

state

features

of

CC

SAFETY

NET

are

included

with

CC

STEADYSTATE.Thisproductenablesuserstomakesimultaneousflow and

pressurebalancedsimulationseveninreverseflowsituationsforsingle or

multiphaseflow.

CC-FLASH

TheCCFLASHmoduleprovidesphysicalpropertyandphaseequilibriumdata,as

wellaspropertypredictionandregression.CCFLASHisasubsetofCCSTEADY

STATE,andismeantforcustomerswhodonotneedfullflowsheetsimulationtools.


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CHEMCAD Features by Module

Thefollowingmatrixliststhefeaturesassociatedwitheachcomponentofthe

CHEMCADsuite.Foramoredetailedexplanation,ortoinquireaboutaparticular

componentorfeature,pleasecontactChemstationsoryourCHEMCADdistributor

(seecomplete

contact

information

at

www.chemstations.net/contact.htm).

CC-STEADYSTATE

CC-DYNAMICS

CC-BATCH

CC-THERM

CC-SAFETYNET

CC-FLASH

VB/COM/OPC/Data Map

Sensitivity/optimization

Sizing (line/valve/orifice/vessel)

Run steady state

Run dynamics

Run recycles

Costing

Reconciliation

Sizing columns

Sizing heat exchangers

Economics

Reports (incl. Excel)

DIERS

CO2solid

Hydrates

Depress

TOC/COD

Pure regression

BIP regression

Electrolyte regression

Rate regression

Units calculator

Execute parser

Environmental report

Simple calculator

Spec sheet


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UnitOps by Module

Theavailabilityofcertainunitoperations,orUnitOps,inCHEMCADsimulationsis

afunctionofwhichmodulesyouhavelicensed.Thefollowingmatrixlistsall

availableUnitOpsandtheCHEMCADmodulesassociatedwiththem.

CC-STEADYSTATE

CC-DYNAMICS

CC-BATCH

CC-THERM

CC-SAFETYNET

CC-FLASH

Baghouse filter

Batch column

Batch reactor

Calculator

Centrifuge

Component separator

Compressor

Control valve

Controller

Crusher/grinder

Crystallizer

Cyclone

Divider

Dynamic vessel

Electrostatic precipitator

Equilibrium reactor

Excel unit

Expander

Fired heater

Flash

Gibbs reactor

Heat exchanger

Hydrocyclone

Kinetic reactor

Liquid/liquid extractor

LLV flash*

LNGH exchanger


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CC-STEADYSTATE

CC-DYNAMICS

CC-BATCH

CC-THERM

CC-SAFETYNET

CC-FLASH

Loop

Mixer

Node

Phase generator*

PID controller

Pipe simulator

Polymer reactor

Pump

Ramp controller

Recorder*

Run subflowsheet META unit

SCDS distillation column

Screen

Sedimentator

Shortcut column

Solids dryer

Solids washer

Stoichiometric reactor

Stream reference

Tank

Time delay

Time switch

Tower distillation column

Tower plus distillation column

User-added module

Vacuum filter

Valve

Venturi scrubber

Vessel*

* These UnitOps will be phased out eventually.


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Chapter 2

Getting Started with CHEMCAD

NowthatyouhaveCHEMCADinhand,youprobablywanttogetstartedright

away.Letsgetdirectlytothepoint,withstepbystepinstructionsforinstallingand

licensingtheprogram.

Installing the SoftwareStartbyensuringthatyourPCmeetstheminimumsystemrequirements,aslisted

below.Itsalsoagoodideatofindoutbeforeyoubeginwhetheryourcopyof

CHEMCAD

will

rely

on

a

network

license;

if

it

will,

make

sure

to

ask

your

network

administratorforallthe

informationthatyoullneed

wheninstallationiscompleteand

itstimetosetuplicensing.

Onceyouveestablishedthat

yourcomputerisreadyfor

installation,insertthe

CHEMCAD6.0discintoan

availableCDmediadriveand

watchfor

the

CHEMCAD

splash

screentoappear.

CHEMCAD System Requirements

Processor speed: 500 MHz or higher

Operating system: Windows 2000, XP, or Vista

RAM: 256 MB

Video card: 128 MB or higher video memory

Display resolution: 1024 x 768 or higher

Hard disk space: 500 MB (750 MB duringinstallation)

Productivity software: Some features requireMicrosoft Office


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Note: IfyouinsertthediscandclosetheCDmediadrivedoor,butnothinghappens

withinoneminute,thenyoursystemisnotconfiguredtolaunchtheCDcontent

automatically.Tolaunchtheinstallationprogrammanually,gotoMyComputer,

doubleclicktheiconforyourcomputersCDmediadrive,andthendoubleclickthe

filecalledSetup.exe.

ClickInstallCHEMCADtolaunchtheInstallShieldWizard.InstallShield

inspectsyourcomputerforsoftwarecomponentsthatCHEMCADwillneed,and

promptsyoutoinstallanyneededcomponentswithascreensimilartoFigure201.

Figure 2-01: InstallShield Wizard screen listing software components to be installed

ClickInstalltocontinue.Followthepromptsonallotherscreensuntilyousee

theCHEMCADSuiteInstallShieldWizardscreen,showninFigure202.

Note:DependingonhowmanysoftwarecomponentsInstallShieldidentifies,there

maybequiteafewscreens,andtheprocedurecouldtakeseveralminutes.Once

thesecomponentsareinstalledonyourcomputer,however,youwillnotneedto

reinstallthemwithfutureCHEMCADupdates.


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Figure 2-02: The CHEMCAD Suite InstallShield Wizard screen

ClickNexttobegintheinstallationprocess.TheLicenseAgreementscreen

appears,listing

the

CHEMCAD

standard

license.

Once

youve

read

and

understood

thetermsofthelicense,youllneedtoclicktheIacceptthetermsofthelicense

agreementbuttonbeforeyoucanclickNextagaintoproceed.Notethatyouhavethe

optiontoprintacopyofthelicenseagreementfromthisscreen.

Figure 2-03: The Standard License screen

TheDestinationFolderscreenappearsnext,displayingthenameofthefolder

intowhichtheCHEMCADfileswillbeinstalledbydefault.Normally,this

destinationis

C:\Program

Files\Chemstations\CHEMCAD,

and

it

is

recommended

thatyouusethislocationunlessyouhaveaspecificneedtoinstalltheprogram

elsewhere.ClicktheChangebuttonifyouwanttochangethefiledestination,or

clickNexttoacceptthesuggesteddestinationandproceed.

TheSetupTypescreennowappears,offeringachoicebetweencompleteand

custominstallation.Eachtypeofinstallationisdescribedonthescreen.Eitheraccept

thedefaultsettingofCompleteorclickCustomtoselectspecificcomponentsto

install,thenclickNexttoproceed.


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TheReadytoInstalltheProgramscreennowappears.Notethatonthisscreen,

andinfactonanyscreenintheinstallationprocess,youcanclickBacktoreturntoa

previousscreenandverifyorchangeyourinstallationsettings.Ifyouaresatisfied

withyoursettingsastheyare,clickNexttostarttheinstallation.

TheInstallingCHEMCADSuitescreenappears,showingtheprogressofyour

installationwithagreenstatusbar.

Figure 2-04: Status bar showing the progress of CHEMCAD installation

Wheninstallationiscomplete,youllseeonefinalscreen,whichstatesthatthe

InstallShieldWizardhascompletedinstallationoftheCHEMCADSuite.Click

FinishtoclosetheinstallationprogramandopenCHEMCAD6.

Licensing CHEMCADBeforeyoucanuseCHEMCAD,youllneedtosetupalicensingschemeofsome

type.Dependingonyourparticularlicensingagreement,youwilluseoneofseveral

typesoflicensestorunCHEMCAD.

Types of CHEMCAD Licenses

ThevarioustypesofCHEMCADlicensesaredesignedtofitdifferentusers

software,hardware,andnetworkingneeds.Mostlicensesrequiretheuseofa

hardwaredevice,commonlyknownasadongle,toruntheprogram.

ThedonglesimplyplugsintoeitheraUSBportoraparallelportonthe

computer,and

must

be

plugged

in

any

time

the

program

runs.

If

you

work

on

a

networkwithotherCHEMCADusers,yourlicensemayrelyonadongleplugged

intoanetworkserverelsewhereinyourorganization,ratherthanoneplugged

directlyintoyourcomputer.


23/202



Youoryourorganizationwilluseoneoffourtypesofdongles:

SuperProsingleuserdongle(parallelorUSBconnection) SuperProNetdongle(parallelorUSBconnection) SentinelScribesingleuserdongle(parallelconnection) NetSentinelnetworkdongle(parallelconnection)

Insomeinstances,softwarelicensingisaccomplishedwithouttheuseofa

hardwaredevice:

LicenseManagersoftware,whichrunsoveralocal orwideaccessnetwork

SystemAuthorization,amethodthatauthorizesasingleusermachineforalimitedtime(usedforsoftwareevaluation)

License SettingsTorunCHEMCADforthefirsttime,makesurethatyourdongle(ifapplicable)ispluggedinproperly,andthenstarttheprogram.FromtheWindowsStartmenu,

selectAllPrograms>Chemstations>CHEMCAD.

Theprogramopens,displayingaCHEMCADsplashscreen.Afterafew

moments,thatscreenisreplacedbytheLicenseSettingsscreen.

Figure 2-05: The License Settings screen with default settings

Thecheckedboxesontheleftsideofthisscreenindicatethetypesoflicensing

hardwareandsoftwarethatCHEMCADwillsearchforwhenyouclickOK.Note

thatnetworklicensingmethodsarenotchecked;thissavestimeformanyusers,

becausesearchingforanetworkdonglecanbetimeconsuming.


24/202



Note:Ifyouareusingoneofthenetworklicensingmethods(NetSentinel,SuperPro

Net,orLicenseManager),youllneedtochecktheappropriateboxbeforeclicking

OK.Youcanalsoclicktheotherboxestocleartheircheckmarksandspeedup

CHEMCADssearchforyourlicense.

Onthe

right

side

of

the

screen,

the

Network

device

product

checkout

area

lets

networkuserschoosewhetherornottorequestlicensesforspecificCHEMCAD

modules.Foreachlistedproduct,youcanelecttosecurealicenseAlways,As

needed,orNever.

ThedefaultsettingforalloftheseslidercontrolsisAsneeded,whichsecuresa

licenseonlywhenyoubegintouseaspecificCHEMCADfeaturecontrolledbya

certainproduct.Thissettingisidealinmostsituations,asitleavesunneededlicenses

availableforotherusers.Tochangeanymodulescheckoutsetting,simplyclickto

theleftorrightofthecurrentsettingtomovetheslider.

In

most

cases,

you

wont

need

to

make

any

changes

on

the

License

Settings

screen,althoughyoumaywanttocleartheAlwaysshowthisscreenatstartupcheck

box,toavoidseeingthisscreeneachtimeyoustartCHEMCAD.

Note:Ifyouveturnedoffthischeckbox,youcanstillopentheLicenseSettings

dialogboxatanytime.EitherselectTools>Options>LicenseSettingsfromwithin

anopensimulation,orselectLicense>LicenseSettingswithnosimulationopen.

Whenyouvemadeanychangesneeded,clickOK.OnceCHEMCADhaslocated

yourvalidlicense,youllseetheLicensesinUsescreen,whichlistsalllicensed

productsalongwiththetypeoflicensedeviceorsoftwarevalidatingeachproduct.

ClickOK

to

close

this

screen

and

access

the

main

CHEMCAD

window.

Updating a License

CHEMCADdonglesrequirereprogrammingonaregularbasis,eitheronceayear

ormoreoftendependingonyourlicensingagreement.Thisisasecuritymeasureto

reducethelikelihoodthatyourdonglewillbestolenandmisused.

Thedonglethatyouuseisprogrammedtoworkonlythroughthelicensedtime

period,andwhenthattimehaselapsed,thedonglemustbeupdatedbeforeyoucan

continueusingCHEMCAD.

Updating

a

dongle

is

a

relatively

simple

procedure.

Before

your

license

expiration,youoryoursoftwareadministratorshouldreceiveanemailfrom

Chemstations,withwhatsknownasaconfigurationfileincludedasanattachment.

YoushouldsavethisfiletoyourWindowsdesktopassoonasyoureceiveit.


25/202



Note:Ifyouveupdatedthesamedongleinthepast,thenewconfigurationfile

shouldhavetheexactsamefilenameasthepreviousone.If,whilesavingthefileto

yourdesktop,youseeaWindowsmessageaboutanexistingfilewiththesame

name,youshouldoverwritetheoldfile(whichinanycasecannotbeusedagain),

replacingitwiththenewone.

Itsimportanttoensurethatyourconfigurationfilematchesyourdongle.The

configurationfileshouldbea.DNGfilewhosenameincludesafour orfivedigit

code;thiscodemustmatchthenumberstampedontoyourdongle.Ifthenumbers

dontmatch,contactyoursoftwareadministratororChemstationssupporttoresolve

theissue.

Theupdateemailalsospecifiesthedateonwhichyoullneedtoupdateyour

dongle.Beforethatdatearrives,followthisproceduretoperformtheupdate:

1. StarttheCHEMCADprogram;youshouldseetheLicenseSettingsdialogbox

appear

automatically.

If

necessary,

you

can

open

this

dialog

box

using

eitherTools>Options>LicenseSettings(withasimulationopen)or

License>LicenseSettings(withnosimulationopen).

2. WithintheLicenseSettingsdialogbox,clickthetabwiththesamenameasthetypeofhardwaredonglethatyouuse:SentinelScribe,NetSentinel,

SuperPro,orSuperProNet.

3. Onthetabyouveselected,findtheReprogrambuttonReprogramSentinelSuperPro,forexample.Clickthisbuttontobeginthere

programmingprocedure.

Figure 2-06: Re-programming a SuperPro dongle from the License Settings dialog box

4. WhentheBrowseforFolderdialogboxappears,navigatetothelocationwhereyousavedthe.DNGconfigurationfile.Normally,thisistheWindows

desktop;ifyousavedyourconfigurationfilethere,clickDesktoptotell

CHEMCADwheretolookforthefile,thenclickOK.


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Figure 2-07: Selecting the location where the configuration file resides

5. CHEMCADreprogramsthedongleandthendisplaysasuccesspopupwindow.

Figure 2-08: Successful re-programming of a CHEMCAD dongle

6. ClickOKtoclosethepopupwindow.IftheLicensesinUsescreenappears,clickOKtocloseit.

YoushouldnowbeabletoopenCHEMCADandproceednormally.

Getting Help with CHEMCAD

Ifyou

find

that

you

have

questions

that

are

not

addressed

in

this

User

Guide,

you

canturntoseveralresourcesforCHEMCADhelp.

Online Help

AtanytimewhilerunningCHEMCADinanactivewindow,youcanpressthe[F1]

keytobringuptheCHEMCADHelpscreenthatsmostappropriatetothetaskyou

arecurrentlyperformingorthedialogboxcurrentlydisplayed.

Insomesituations,pressing[F1]willbringupthemainCHEMCAD6Help

windowinsteadofaparticularhelpscreen.Fromthere,youcanclicktheContents,

Index,orSearchtabintheupperleftcorneroftheCHEMCAD6Helpwindow,and

usethese

tools

to

find

the

information

you

need.

YoucanalsogodirectlytothemainCHEMCAD6Helpwindowbyselecting

Help>HelpTopicsfromtheCHEMCADmainmenu.Regardlessofhowyouopen

CHEMCADHelp,italwaysopensinaseparatewindowthatdoesnotinterferewith

theoperationoftheCHEMCADprogram.


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CHEMCAD Coach

TheCHEMCADCoachpaneisatoolthatyoucanopenwithinCHEMCADtoview

conciseinstructionsforcommonprocedures.Toseealistofavailabletopics,select

Help>CHEMCADCoach.ThenclickonanylinkintheCHEMCADCoachwindow

toviewtheinstructionsforaspecifictask.

Procedure Demos

Animateddemonstrationsofcommontasksareavailabletohelpyougetstarted

usingtheCHEMCADprogram.Topicscoveredincludethevariousstepsinvolvedin

creatingabasicsimulation;proceduresforsimulationsinvolvingbatchreactors,heat

exchangersizing,andpiping;controlvalveratingandsizing;creatinganExcelData

Map;andupdatingalicensingdongle.

ThedemofilesareinstalledalongwithCHEMCAD.Toaccessthesedemos,

selectStart>AllPrograms>Chemstations>Demos,andthenbrowsethelistof

available

topics.

Click

the

button

for

the

demo

youd

like

to

view

and

then

click

Play

torunthedemo.

The Chemstations Web Site

TofindthemostrecentupdatesoftheCHEMCADsoftware,manuals,andvarious

trainingtools,gotowww.chemstations.net.Thereyoullfindthefollowingitems

availablefordownload:

ThelatestreleaseofCHEMCAD Alistofupdatesimplementedinthemostrecentrelease

The

latest

version

of

CHEMCAD

6.0

Help

CHEMCAD6.0InteractiveDemos ProgrammingguidesforinterfacingwithCHEMCAD

Contacting Chemstations Technical Support

Ifyouareunabletosolveaproblemorfindtheanswertoaquestionusingthis

manualortheothertoolslistedhere,youcancontactChemstationstechnical

supportstaffforassistance.

Ourtechnicalsupportengineers

areavailable

via

email,

or

by

phone

MondaythroughFriday,7:00AM

through6:00PMCentralStandard

Time.

OutsideoftheUnitedStates,pleaseseewww.chemstations.comforregional

contactinformation.

Phone: 713.978.7700

Toll-free (U.S. and Canada): 800.243.6223FAX: 713.978.7727

E-mail: [email protected]


28/202




29/202


Chapter 3

The CHEMCAD Interface

WiththereleaseofVersion6.0,theCHEMCADinterfacehasundergonequitea

transformation.Forthisreason,evenlongtimeusersofCHEMCADwillbenefit

fromareviewoftheprogramsscreenlayoutandthelocationofimportantfeatures.

ThischaptertakesyouonatouroftheCHEMCADscreen,includingthemenus

andtoolbars,themainareasofthescreen,andtheflowsheetdrawingtools.Italso

showsyousomewaysthatyoucancustomizethescreenlayoutsothatitbestsuits

yourownwayofworking.

The CHEMCAD WindowWhenyoulaunchtheCHEMCADprogramforthefirsttime,youllseeascreenwith

alargewhiteareainthemiddleandvariouspanes,orspecializedareas,attheedges

ofthescreen.

Workspace

CHEMCADExplorer pane

Palette pane

Messages pane


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TheCHEMCADInterface


The Workspace

Theareainthemiddleofthescreenisknownastheworkspace.Thisisthemainfocus

oftheCHEMCADwindow,theplacewhereyoullbuildandeditflowsheets,view

graphs,andrunandtweakprocesssimulations.

Whenyou

first

launch

CHEMCAD,

the

workspace

is

solid

white.

When

you

start

tobuildaflowsheetoropenanexistingsimulation,theflowsheetdisplaysinthe

workspace.

Theworkspaceusestabstoenableyoutoswitchbetweenyouropensimulation

andanyopenExcelDataMapsand/ordataplots.Atthebottomoftheworkspace

area,youllseeoneormoretabswheneverasimulationisopen.Eachtabincludesa

buttonmarkedwithanX;tocloseanytab,firstclickthetabandthenclicktheX

button.

Figure 3-01: The bottom of the workspace area, showing several tabs and theirXbuttons

Notethatanytimeyouveclosedasimulationandhaventyetopenedanother

one,theworkspacedisplaysasablankgrayspace.

The CHEMCAD Explorer Pane

AlongtheleftedgeoftheCHEMCADwindow,youllseeanareawithatitlebarat

thetopthatreadsCHEMCADExplorer.AtthebottomoftheCHEMCADExplorer

panearethreetabscalledRecentFiles,Simulation,andVisualBasic.Toviewthe

contentsof

atab,

simply

click

its

name.

Figure 3-02: CHEMCAD Explorer tabs

TheCHEMCADExplorertabsarepresentedinwhatsknownasatreeformat,

withitemsorganizedintoamultilevelhierarchy.Thedefaultviewshowsonlytop

levelitems,butyoucanexpandeachitemtoviewsecondlevelitems,thirdlevel

items,andsoforth.

Attheleftofeachtoplevelitemisasmallboxwithaplussign.Toexpandanitem,clicktheplussign.Twothingshappensimultaneouslywhenyouclick:thetree

expandstoshowthatitemscontents,andtheplussignbecomesaminussign.You

canhide(orcollapse)thelowerlevelitemsagainbyclickingtheminussign,which

thenturnsbackintoaplussign.Figure303showsanexampleofaCHEMCAD

Exploreritemincollapsedandexpandedview.


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TheCHEMCADInterface


Figure 3-03: Clicking the plus sign to expand an item (left); the resulting view (right)

ExpandingandcollapsingitemsintheCHEMCADExplorertabsisonewaythat

youcanmakethebestuseofyourscreenspacewhenworkinginCHEMCAD.

The Recent Files Tab

TheRecentFilestabisselectedbydefaultwhenyoufirstlaunchCHEMCAD.This

tablistsallofthesimulationfilesthatyouhaveopenedlately,startingwiththemost

recent.WhenyoufirstinstallCHEMCAD,thelistisempty,butwithevery

simulationthat

you

opennew

files

or

existing

ones

such

as

built

in

examplesthe

listwillgrow,providingconvenientaccesstofilesthatyouusefrequently.

ToopenasimulationfromtheRecentFileslist,simplydoubleclickonthefile

nameinthelist.

The Simulation Tab

TheSimulationtabdisplaysbydefaultanytimeasimulationisopen.Itprovidesa

seriesofshortcutstocommoncommandsandsettings,including:

Components:Includesoneclickaccesstocomponent,electrolyte,andsolidsselection,aswellasdistillationcurves

Thermodynamics:Providesquickaccesstothermodynamicsettingsandtransportproperties

Flowsheet:AllowsquickeditingofUnitOpandstreamdata DataMaps:EnablesyoutocreateorsetexecutionrulesforaDataMap

withoutusingthemenu


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TheCHEMCADInterface


Groups:ProvidesaneasywaytocategorizeUnitOps,streams,andcomponents

Layers:Allowsselectedpartsoftheflowsheettobedisplayedorhiddenforviewingandprinting

Templates:StoresandorganizesstreamandUnitOpspecificationsthatyoucancloneforreuse

Expandanyoftheseitemstoseeandusespecificfeatures,whicharedescribedin

furtherdetailintheappropriatechaptersofthisuserguide.

The Visual Basic Tab

IfyouuseVisualBasictocustomizeCHEMCAD,thistabprovidesquickandeasy

accesstoyourVisualBasiccode.YoucanexpandtheReactions,Properties,or

UnitOpsitemtoviewavailablesubroutinesforthatcategory.Clickingthenameofa

subroutineopensaVisualBasiceditorinaseparatewindow.

The Palette Pane

AlongtherightsideoftheCHEMCADwindowisapanetitledPalette,whichisa

repositoryforthevariousunitoperationiconsandothertoolsneededtodraw

flowsheets.

Selecting a Palette

TheseUnitOpiconsandtoolsaregroupedintopalettesaccordingtofunctionor

equipmenttype.ThedefaultpaletteiscalledAllUnitOps,anditincludesevery

availableUnitOpiconanddrawingtool.Toselectadifferentpalette,simplyclickits

titlebar.

The

selected

palette

expands

in

place,

as

shown

in

Figure

304.

Figure 3-04: The expanded Piping and Flow palette


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TheCHEMCADInterface


Customizing Palettes

AtthetopofthePalettepaneisafieldcalledSearchforUnitOp(s).Typeasearch

termhereandthenclickGo!tolocatealloftheUnitOpiconsassociatedwiththat

term.TheresultsfromthesearchappearinanewpaletteatthebottomofthePalette

pane.Figure305showsthesearchresultsforthewordvessel.

Figure 3-05: Search results showing all vessel UnitOps

PerformingaUnitOpsearchcreateswhatisknownasauseraddedpalette.This

typeofpaletteisdesignatedwithaspecialiconattheleftendofthepaletteheading.

Thepalettecontainingyoursearchresultsremainsavailableuntilyouclose

CHEMCAD.Youcanmakeyouruseraddedpaletteavailablepermanentlybyright

clickingthenewpalettestitlebarandselectingSave.

Figure 3-06: Saving search results for future use


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TheCHEMCADInterface


Youcandothefollowingwithuseraddedpalettes:

RenameanyuseraddedpalettebyrightclickingitstitlebarandselectingRename.Intheresultingdialogbox,typethenameyouwantandthenclick

OK.

DeleteauseraddedpaletteatanytimebyrightclickingandselectingRemove.

AddindividualUnitOpsortoolstoanexistinguseraddedpalette.Simplyrightclicktheiconfortheitemyouwanttoadd,selectInsertintoPalette,

andthenclickthenameoftheuseraddedpalette.

RemoveanitemfromauseraddedpalettebyrightclickingtheiconandselectingRemovefromPalette.

Createauseraddedpalettewithoutasearch.RightclickthefirsticonthatyoudliketoincludeonanewpaletteandselectInsertintoPalette>New

Palette.Type

aname

in

the

resulting

dialog

box

and

click

OK.

Then

add

as

manyothericonsasyoudlikeusingthemethoddescribedjustabove.

Youcannotchangethenameoriconselectionforabuiltinpalette,asyoucan

withauseraddedpalette.Youcan,however,makeacopyofabuiltinpalette,

renamethecopy,andthenaddanddeleteiconsuntilthepalettehasjustwhatyou

want.

Tocopyanypalette(whetherbuiltinoruseradded),simplyrightclickthe

paletteheadingandselectSaveCopyAs.Typeanameforthenewpaletteandclick

OK.

The Messages PaneTheMessagespaneislocatedatthebottomedgeoftheCHEMCADworkspace.At

thebottomofthispanearethreetabs:ErrorsandWarnings,RunTrace,andNotes.

The Errors and Warnings Tab

Thistabdisplaysarunninglistoferrorandwarningmessagesthathavebeen

generatedwhilethecurrentsimulationfilehasbeenopen.Theoldestmessages

displayatthetopofthelist.Whentherearetoomanycumulativemessagesto

displayinthepane,themostrecentmessagesdisplayandtheoldermessagesscroll

offthetopedgeofthepane.Ifneeded,youcanusetheverticalscrollbarontheright

sideof

the

pane

to

scroll

up

and

review

earlier

messages.

The Run Trace Tab

ThistabdisplaysdiagnosticmessagesfromeachUnitOpeachtimeasimulationis

run.Thisinformationishelpfulintroubleshootingasimulationthatisnotworking

properly.

ThetextontheRunTracetabisnotsavedwiththesimulation,butrefresheswith

eachrunandclearswhenyouclosethesimulation.


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TheCHEMCADInterface


The Notes Tab

Thistabprovidesahandyplacetostoreadditionalinformation,intextform,about

thesimulation.Youcanuseittolistanydetailsaboutthesimulation,suchasits

originandanyassumptionsthatarebeingmade.

Any

notes

that

you

add

or

change

are

saved

as

part

of

the

simulation.

To

delete

textfromanote,simplyclickanddragtoselectthetextandthenpress[DELETE]on

yourkeyboard.

The Main Menu

ThemainCHEMCADmenuislocatedjustunderthetitlebaratthetopofthe

programwindow.SomeitemsonthemainmenuarecommontonearlyallWindows

programsnamelyFile,Edit,Format,andHelpwhileothermenuitemssuchas

ThermophysicalandSizingaremorespecifictochemicalprocesssimulation.

Touseamenucommand,clicktherelevantmainmenuitemandthenclickthe

commandin

the

drop

down

list

that

appears.

Toexecutemenucommandswithoutusingthemouse,youcanholddownthe

[ALT]keyonyourkeyboardasyoupresstheletterkeythatcorrespondstothe

underlinedletterinthedesiredmenuitem,forexample[ALTF]fortheFilemenu.

Youcanthenusetheupanddownarrowkeystoselectanitemonthemenuand

press[ENTER]toexecutetheselectedcommand.

The Toolbar

TheCHEMCADtoolbarprovidesbuttonsthatarecommontomostWindows

applications,suchasNew,Open,Save,andPrint,alongwithbuttonsthatare

specificto

chemical

process

simulation.

Todiscovertheuseofaparticularbutton,simplypointyourmousecursoratthe

buttonandwatchforthetooltiptoappear,asshowninFigure307.

Figure 3-07: Viewing a buttons tooltip

Toolbarbuttonsprovidequick,oneclickaccesstofrequentlyusedcommands

that

are

also

available

via

the

CHEMCAD

menus.

Customizing the CHEMCAD ScreenWhenyoufirstinstallCHEMCAD,thescreenislaidoutwiththeCHEMCAD

Explorerpaneontheleft,thePalettepaneontheright,andtheMessagespanebelow

theworkspace.


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TheCHEMCADInterface


Ifhavingalloftheseitemsvisibleleavesyoulessworkspacethanyouwould

prefer,orifthelocationofoneormorepanesislessthanoptimalforthewaythat

youwork,youcanhideormovepanestocustomizeyourCHEMCADscreen.

Viewing and Hiding Screen Elements

Youcan

view

or

hide

any

of

the

CHEMCAD

screens

panes,

as

well

as

groups

of

toolbarbuttons,tomakeoptimaluseofyourscreenspace.

Totoggleapaneonoroff,selecttheViewmenuandthenchooseCHEMCAD

Explorer,Palette,orMessages.Itemswithacheckmarkarecurrentlydisplayed,

whileitemswithnocheckmarkarecurrentlyhidden.Youcanalsochoosetoviewor

hidethestatusbaratthebottomoftheCHEMCADwindow.

Toselectivelyvieworhidegroupsoftoolbarbuttons,selectView>Toolbars.In

theToolbarsdialogbox,eachgroupofbuttonsislistedunderadescriptivename;

initially,allofthesegroupshavecheckmarks,indicatingthattheyarecurrently

displayed.To

hide

any

group

of

buttons,

click

to

remove

the

check

mark

and

then

clickClosetoreturntothemainCHEMCADwindow.

Resizing and Moving Items

Nowthatyouhavedeterminedwhichpanesandtoolbarbuttongroupstodisplay,

youcanfurthercustomizeyourCHEMCADwindowtodetermineexactlywhere

eachoftheseitemswillappear.

Resizing a Pane

Thesimplestwaytoaltertheappearanceofapaneistoresizeit.Youcanmakethe

CHEMCAD

Explorer

and

Palette

panes

wider

or

narrower,

or

make

the

Messages

paneshorterortaller,bymovingtheinsideedge,orwall,ofthepanetowardor

awayfromtheedgeofthemainwindow.

Toresizeapane,startbypositioningyourmousecursorattheinsidewallofthe

panethatis,therightedgeoftheCHEMCADExplorerpane,theleftedgeofthe

Palettepane,orthetopedgeoftheMessagespane.Whenthecursorisinthecorrect

positionforresizing,thenormalpointerwillbereplacedwithatwoheadedarrow

asshowninFigure308.

Figure 3-08: The two-headed arrow cursor used for resizing panes


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TheCHEMCADInterface


Whenyouseethetwoheadedarrow,clickanddraginthedirectionyouwantto

movethepanewall.Athickgraylineshowsapreviewofthenewpanesize;when

youreleasethemousebutton,theresizedpaneappears.

Moving a Pane

Inaddition

to

resizing,

you

can

also

move

any

of

the

panes

in

the

CHEMCAD

window,eithertoadifferentedgeofthescreenortothemiddleofthescreen.You

canalsomovegroupsofbuttonsfromtheirdefaultpositionsonthetoolbar.

Initially,allofthepanesandbuttongroupsaredocked,meaningthattheyare

snappedintoanedgeofthescreenorthetoolbararea.Whenyouundockanitem,

youcanputitinthelocationofyourchoosing,awayfromthescreenedge.

Toundockapane,clickanddragthepanestitlebar,thatis,thebluebaratthe

topofthepanethatshowsthepanename.Toundockabuttongroup,youllneedto

clickanddragtherowoffourdotsrunningalongtheleftedgeoftheleftmostbutton

in

the

group.

Note:InthecaseoftheMessagespane,thetitlebarrunsalongtheleftedgeofthe

pane,andthenameisnotvisiblewhenthepaneisdocked.

Ifyoudragthepaneorbuttongroupintotheworkspacearea,youllseeagray

boxrepresentingthepositiontheitemwilloccupywhenyoureleasethemouse

button.Ifyoudontlikethenewposition,youcanclicktheitemstitlebaranddrag

itelsewhere,includingitsoriginalposition.

Youcanalsodockapanetoadifferentedgeofthescreen,ormovebutton

groupsaroundwithinthetoolbararea,insteadofundockingtheseitems.

Pinning and Unpinning Panes

Inadditiontomovingandresizingthevariouspanes,t

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