Activated Analysis

8/20/2019 Activated Analysis

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ASPEN HYSYS ACTIVATED ANALYSIS

Accessing Activated Analysis Tools

The Activation dashboard appears just below the ribbon, above the main workspace. It may appear in

one of two forms, either minimized as a single line of text

!r full size with more detailed results

At the right end of the dashboard you can click this button to switch between these views. If the

whole dashboard does not fit on your screen, you can click the arrows at either end to scroll it.

"se the dashboard to perform economic, energy, and exchanger analysis of your Aspen

#$%$% simulation.

"se this panel To

&conomics 'erform economic analysis with Aspen 'rocess &conomic Analyzer

&nergy 'erform energy analysis with Aspen &nergy Analyzer

&xchanger (esign and

)ating

Analyze results and risks for rigorous heat exchangers modeled with As

&xchanger (esign * )ating

Activated economic evaluation

Using Activated Economic Analysis

Activated &conomic Analysis makes it easy to access key results from Integrated +ost &stimation .

Dashboard Panel

Initially, the &conomics button appears in the Activation dashboard without results and turned off


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efore you begin to use the dashboard panel, use the +osting !ptions in the &conomics )ibbon

section 'repare , to specify the costing template, scenario name and description, and optionally the

operating life of the plant, length of plant startup, and the date for the start of basic engineering. In

order to get raw material results, specify stream prices as well, and configure your model to

use utilities . -or more details on this configuration, see Integrated +ost &stimation .

)un the simulation. After your run is complete, in the &conomics panel on the Activation dashboard ,

click off to turn the activated economics on and perform cost analysis.

hen you do so, Aspen 'rocess &conomic Analyzer calculates costs and shows them in the panel

If there are warnings from economic analysis, such as some unit operations whose costs could not be

calculated, a yellow warning icon will appear on this panel. +lick it to open the &/uipment tab of the &/uipment form0 information about the warnings appears in the &valuation &rrors column at the

far right of this screen. This area can also display when economics is not available, a green check

mark 1as above2 when results are available, and a status message when economics is calculating.

Economic Equipment Data Summar Vie!

(etailed economic results appear in the &conomic &/uipment (ata %ummary 3iew . +lick the capital

cost result on the dashboard panel to see a summary of the costs. +lick the utility cost result to see

details of the utility costs. $ou can click the other tabs on the &/uipment form to see information aboutspecific types of e/uipment.


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"lo!sheet #$erla s


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hen you click the dashboard panel for &conomics, the flowsheet displays green circles

around the blocks on the flowsheet with the highest costs. +lick Settings on

the Economics tab of the ribbon to specify settings for flowsheet overlays. y default the 4

blocks with the highest operating costs are highlighted. $ou can specify 5 to 56 highest cost

blocks0 specify operating cost, capital cost, installed cost, or weight as the rankingmechanism0 or turn off the display of the rings completely

About the Equipment%Economics "orm

• Installed cost represents the total direct material and labor costs associated with the project

component 1including installation bulks2.

• Equipment cost represents the bare e/uipment cost associated with the project component.

• Equipment weight represents the empty shipping weight of the e/uipment.

• Total installed weight is the e/uipment weight plus the weight of all bulks for installation such

as piping, civil, and electrical.

These tabs appear

• The Summary tab provides overall cost figures.

• The Utilities tab provides overall usage and cost of each utility.

• The Unit operation tab displays a summary of e/uipment and utility costs for all models

• The Equipment tab provides a summary of costs for each piece of e/uipment. It also displays

any errors encountered while sizing or evaluating the e/uipment. The e/uipment names on

this tab are links to the tabs where the detailed results for the corresponding e/uipment types

appear.


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• Additional tabs for each type of e/uipment present in the simulation display sizing information,

materials of construction, installation options, and so on. uttons at the top of these tabs allow

you to interactively size and evaluate selected blocks. #old the %hift or +ontrol key to select

multiple blocks.

$ou can right7click in the list of variable names to access additional commands for sorting,

changing units, and filtering data

• $ou can sort the blocks in any tab by the value of any field 1including )emarks2.

• $ou can select the units of measure for any set of variables.

• Toggle -ilters enables a filter feature which allows you to only show blocks matching a chosen

filter value on any given field1s2. The filtering options include specific values, lanks, 8on7

lanks, and +ustom filters which can contain a combination of e/ualities, ine/ualities,

substrings at start9end9anywhere, and regular expressions.

The view Equipment command in the Economics tab of the ribbon and the Equipment view

in the Results Summary folder of the navigation pane provide access to this view.

How to Select and Modify Economics Templates

To select an economic template

5 !n the Economics tab of the ribbon, click Cost Options .

5 8ext to Template , click Browse . A file browser opens to the &conomic &valuation templates

folder.


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5 !pen the folder for the template you want to use, click the .I:T file, and click Open .

Creating a New Template

The presupplied templates are named according to the geographic location and units which it

uses. $ou can create your own templates to modify other settings, such as the default

mappings from simulator models to e/uipment. To do this

5 %tart Aspen 'rocess &conomic Analyzer standalone 1outside of Aspen #$%$%2.

5 +lick ile ! "ew Template .

5 In the Create "ew Template window, enter a Scenario "ame . This is the name of the

template. +lick O# .

5 In the $ro%ect $roperties window, you can set the base unit set to I$ 1inch7pound2 or &etric ,

and optionally enter a description and remarks for the template. +lick O# .5 In the Input Units of &easure Specifications window, you can change certain specific units

used, and the labels for other units. To modify any category of units, click it and then

click &odify . &nter your changes for the units and then click O# . +lick Close to close

the Input Units of &easure Specification window when you are done.

5 In the 'eneral $roduct (ata window, you can change the country and currency basis for the

template. +lick O# .

5 8ow the template is open, and you can make further modifications. In the tree under $ro%ect

Basis , open $rocess (esign , right7click Simulator Type , and click Edit . To make a template

for use in Aspen #$%$%, click )spen *+S+S , then click O# .5 %till under $rocess (esign , right7click $ro%ect Component &ap Specifications , then

click Edit . The 'roject +omponent ;ap %pecifications window appears.

5 To change the mapping for any model, click it in the Simulator &odels list. Theno To change the mapping for the model, click the e/uipment model to replace from

the Current &ap ,ist , then click Replace &apping , then double7click selections in

the hierarchy of e/uipment models until you get to the specific e/uipment model.

The selected e/uipment replaces the previous mapping.

o To add an additional mapping 1so that the model maps to multiple pieces of

e/uipment2, click "ew &apping . %elect the model as above. Additionally, youmust specify a uni/ue Component "ame Suffi- to ensure each mapped

e/uipment for this model has a uni/ue name.o To delete a mapping, select the e/uipment model in the Current &ap ,ist , then

click (elete One &apping .o To delete all mappings, click (elete )ll &appings .


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Note: Models which are not mapped to any equipment will not be included in the cost estimates. Models which

are mapped have an asterisk (*) before their names in the Simulator Models list.

< -or models representing columns, there are multiple configurations defined. $ou can select

among these in the Configuration list. -or these models, each portion of the column has a

predefined Component "ame Suffi-Component Name Suffi !escription

bottoms split "ottoms splitter

bot e chan#er "ottoms e chan#er

bottoms pump "ottoms pump

cond Condenser for the tower

cond acc Condenser accumulator

ovhd e chan#er $verhead e chan#er

overhead split $verhead splitter ovhd pump $verhead pump

precooler %irst heat e chan#er in split confi#uration

reb &eboiler for the tower

reflu pump &eflu pump

sc cooler 'eat e chan#er in the Spray Condenser confi#uration that cools the total recyclestream

sc tot recycle splitter Splitter in Spray Condenser confi#uration that #enerates the total recycle stream

sc tot recycle trim splitter rim splitter in Spray Condenser confi#uration

sc trim 'eat e chan#er in Spray Condenser confi#uration that cools the total recyclestream

tower Main tower

trim Second heat e chan#er in split confi#uration

5 +lick O# to close the $ro%ect Component &ap Specifications window.

5 +lick ile ! Save to save the template. The template is saved in the &conomic &valuation

templates folder, where it can be immediately selected for use in Aspen #$%$%.

Activate Economics and Auto-Evaluate

+heck the Economics )ctive box in the Economics tab of the ribbon to start Aspen 'rocess

&conomic Analyzer running in the background. $ou will not see the application. 8o data is sent at this

time0 this command merely enables the interface, including all the other commands which interact

with Aspen 'rocess &conomic Analyzer.


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This command toggles the availability of costing. $ou can use it again to shut down Aspen 'rocess

&conomic Analyzer. If you do so, your costing files are retained, and if you start it again, the data from

these files will be available.

+heck )uto.Evaluate to automatically perform a costing evaluation with Aspen 'rocess &conomic Analyzer after every successful flowsheet run 1one which completes without errors0 if there are only

warnings, costing will be run2. If Auto7&valuate is not checked, then you need to click Evaluate to

perform a costing analysis.

Costing Status Indicator

The %tatus group on the Economics tab of the ribbon displays three status indicators

• ;apping• %izing• &valuation

&ach of these indicators can display these status icons

%tatus ;eaning

1blank

2

&conomic analysis not started

This part of the evaluation is being performed 1or waiting for input, if

performed interactively2

This part of the evaluation completed

This part of the evaluation has not been performed since the last input

change 1or it is due to be performed next, if performed interactively2


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%tatus ;eaning

This part of the evaluation did not complete due to an error in the

A'&A engine. This can occur if A'&A crashes or be related to filecorruption.

Activated energy analysys

$ou can use Aspen &nergy Analyzer to optimize the energy consumption of a process in Aspen#$%$%. To do this

5 %pecify utilities for each energy stream.

5 &nsure the simulation is fully specified and has no errors. =ocate the Activated &nergy panel,

which appears as follows 1or in a minimized form of this2

5 +lick the &nergy panel. The +onfiguration sheet appears. "se this sheet to configure

Activated &nergy Analysis.

5 +lick the off switch to turn on Activate &nergy Analysis.

The model is sent to Aspen &nergy Analyzer and when calculations are complete, the results are

displayed in the panel


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The potential utility savings found by Activated &nergy Analysis are shown in the global enthalpy flow

units for the flowsheet, and as a percentage of the actual current utility usage.

Note: hese results show the ma imum possible savin#s opportunities as dictated by thermodynamics. hese

do not represent any specific set of desi#n chan#es. %or more information see +ner#y ar#ets .

5 hen calculations are completed the Energy )nalysis )ctivation form appears, open to

the %ummary sheet. This displays the current values and target values determined by the

analysis, for utility usage and carbon emissions 1if >reenhouse >as &missions are

configured2. $ou can use the other tabs on this form to see more details of analysis results.

5 !n the (esign Changes sheet, click Energy Savings (esign Changes to view the design

changes Activated &nergy Analysis.

$ou can use the &nergy Analysis environment to explore combinations of the process

changes suggested by Activated &nergy Analysis.

"ote If you have activated &nergy Analyzer, exporting your #$%$% simulation to an xml file is not

recommended.

Energy analysis activation

Energy Analysis Savings Summary Tab

This view displays a summary of the results calculated by Activated &nergy Analysis .

Sheet !escriptionSummary ,iew total utility and carbon emissions results.

-tilities ,iew a summary of the usa#e of each utility.

Carbon +missions ,iew a summary of the carbon emissions from each utility.

+ chan#ers ,iew information about all the e chan#ers considered by ctivated +ner#y nalysis.

!esi#n Chan#es ,iew details on desi#n chan#es considered by ctivated +ner#y nalysis.

Confi#uration Specify options for ctivated +ner#y nalysis.


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-or each of total utilities, heating utilities, cooling utilities, and carbon emissions, the current value and

target value are displayed. The Basis at the top lets you switch between displaying the results as flow

or cost values.

"ote/ +arbon emissions are only shown if they are configured in utilities . -or carbon cost, you must

also specify the Car0on ee on the Configuration sheet.

uttons at the bottom of the view allow you to send the results to &xcel or switch to

the (esign Changes sheet, where you can see the specific design changes Activated &nergy

Analysis tried.

Ener& Anal sis 'tilities Tab

"se this dialog to view a summary of utility usage. -or each utility, and for the total of hot utilities and

total of cold utilities, the following values are displayed

• +urrent usage, as the flowsheet is configured.•

Target usage• %aving potential• 'otential energy cost savings in +ost9$r • 'otential energy cost savings as a percentage of the total for that utility.• Temperature approach applied to the utility.• "tility status

Target usage represents an ideal situation for the minimum utilities re/uired to satisfy the process

stream re/uirements. %aving potential, and energy cost savings are calculated based on these

targets.

The minimum temperature approach allowed for an exchanger is the average of the approach

temperatures for the two streams in that exchanger. -or process streams, this is the )pproach

temperature on the Configuration 3iew0 this cannot be set for individual process streams in

Activated &nergy Analysis. -or utility streams, the approach temperature can be set separately for


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each stream in the 1Tmin column of the Utilities 3iew. The default for each utility?s 1Tmin is

taken from the (Tmin specified for that utility in the $rocess Utilities &anager .

"tility status can be

%tatus Icon (escription

%ufficient The temperatures of the utility streams are cool enough or hot enough to satisfy

the cooling and heating demands of the system, respectively. Individual utilities

are not marked with status icons if the utilities are sufficient0 only the total hot or

cold utility is marked sufficient.

Insufficient The temperatures of the utility streams are not cool enough or not hot enough to

satisfy the cooling and heating demands of the system. This icon also appears

by specific utilities assigned to exchangers which are insufficient for the task.

+ross7'inch The outlet temperature of any cold utility stream is higher than the cold pinch

temperature, or the outlet temperature of any hot utility stream is lower than the

hot pinch temperature.


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Energy Analysis Carbon Emissions Tab

"se this dialog box to view a summary of carbon emissions and carbon cost savings from

utilities. These are only available if utilities are configured with carbon capture data . -or

carbon cost savings, you must also specify the Car0on ee on the Configuration 3iew.

-or each utility, the current carbon emissions as the flowsheet is configured, the target

emissions, 1after the single design change considered by Activated &nergy Analysis which

yields the greatest savings2, the )eduction 'otential for that design change, and the carbon

cost savings 1per year and as a percentage of the total energy cost2. Totals for all hot utilities

and all cold utilities are also displayed.

Energy Analysis Exchangers Tab

"se this dialog box to view the following information for each heat exchanger

• 8ame. -or blocks representing heat exchangers, the block name is used. +ondensers,

reboilers, and the heat exchangers associated with duties in other blocks have tags attached

to the block name. -or blocks inside one or more layers of hierarchy, the full path is given.• Type of exchanger #eat exchanger type 'rocess &xchanger, #eater, or +ooler • %tatus icon, indicating the success at exporting the exchanger to Aspen &nergy Analyzer and

its feasibility. A tooltip over the status icon gives a more detailed status message. %ee (ata

&xtraction issues, below, for possible causes of any problems indicated here.•

ase (uty. The heat transferred in this exchanger.• )ecoverable (uty. This is the cross-pinch load when a heat exchanger has a stream with inlet

and outlet temperatures on different sides of the pinch temperature. It is the smaller of the two

loads if this heat exchanger was split into two exchangers, one on each side of the pinch. -or

more information about the pinch temperature, see &nergy Targets .• #ot Inlet Temperature• #ot !utlet Temperature• +old Inlet Temperature• +old !utlet Temperature•

#ot %ide -luid. The stream or utility on the hot side of the exchanger. Its outlet is cooler thanits inlet.

• +old %ide -luid. The stream or utility on the cold side of the exchanger. Its outlet is hotter than

its inlet.

The #ot %ide -luid and +old %ide -luid can be a utility name, inlet and outlet streams

connected by @To@, or a description of the column location for exchangers associated with a


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column. A tooltip on each of these fluid names gives the inlet and outlet temperatures, the

temperature change, and the heat flow associated with this fluid. -or utilities this is the total

duty for the utility. A tooltip on the #ot %ide -luid and +old %ide -luid headings tells the pinch

temperature for each side. -or more information about the pinch temperature, see &nergy

Targets .

A more detailed version of this table is available as the Saving $otentials form in

the Energy )nalysis environment.

The minimum temperature approach allowed for an exchanger is the average of the approach

temperatures for the two streams in that exchanger. -or process streams, this is

the )pproach temperature on the Configuration sheet0 this cannot be set for individual

process streams in Activated &nergy Analysis. -or utility streams, the approach temperature

can be set separately for each stream in the 1Tmin column of the Utilities sheet. The defaultfor each utility?s 1Tmin is taken from the &inimum approach temperature specified for that

utility on its Specifications sheet.

Data E(traction Issues

'lease refer to the following troubleshooting tips to find solutions for resolving data extraction

warnings such as #eat &xchanger is extracted but infeasible in Aspen &nergy Analyzer

•

"nused streams and unit operations If your flowsheet contains streams or unit operations youdonBt want Aspen &nergy Analyzer to consider, remove them or set the scope on

the Configuration sheet to exclude them.• -lowsheet convergence failures If the simulation completed with errors, some streams may

not have results will not be extracted. )esolve the flowsheet convergence issues before using

Activated &nergy Analysis. Avoid recycle loops with loose tolerances to ensure that the heat

exchanger network 1#&82 is accurately represented.• #eat exchangers with zero duty &ither remove the heat exchanger or give it a small duty so it

can be considered in the #&8.• 'ure component streams undergoing phase transition, with non7zero pressure drop This is a

problem when the stream is on the hot side of the exchanger, but the pressure drop causes

the outlet stream to have lower temperature than the inlet stream. To avoid this problem, set

the pressure drop to zero on the side of the exchanger with the pure component stream.


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• #eat exchangers on non7e/uilibrium trays of columns 1condensers, reboilers, side

heater9cooler, pumparounds2. The tray efficiency must be 5 for the exchanger to be extracted

into Aspen &nergy Analyzer.• Two heaters connected by a heat stream must be in the same level of hierarchy to be

recognized as a two7sided heat exchanger. If the heat stream crosses a hierarchy boundary,the heat streams on opposite sides of the boundary are considered separate streams and the

heaters will not be recognized as a two7sided exchanger.• Aspen &nergy Analyzer does not handle ;#eatC blocks, (upl blocks, %elector blocks,

Transfer blocks, solids7processing models and solid substreams, #eatC blocks in which one

side has multiple outlet streams 1split by phases2, or heat streams split by -%plit blocks.• "se of pseudostreams can cause double7counting of energy usage in the analysis because

Aspen &nergy Analyzer considers pseudostreams to be real process streams. &ither avoid

using pseudostreams or put them in a hierarchy that is excluded from the energy analysis

scope on the Configuration sheet.

Energy Analysis Design Changes Tab

"se this dialog to view the design changes considered by Activated &nergy Analysis . $ou can

also limit the maximum number of additional or relocated exchangers which Activated

&nergy Analysis considers. +lick Energy Savings (esign Changes to calculate and display

the improvements after changing these options.

Tables in collapsible sections display the results for each type of change, with each change of

that type listed in a separate row. -or each change, the energy savings, payback period in

years, new area, and capital cost are display, along with data describing the design change.

Energy Analysis Confguration Tab

"se this view to specify the minimum temperature approach allowed in heat exchangers, the

fee for carbon emissions, and which unit operations to optimize.


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Activated e c!anger design and rating analysis

Using the Activated Exchanger Design and Rating Analysis

&xchanger (esign Toolbar

Aspen #$%$% #eat &xchanger (esign and )ating

The Activated &() Analysis lets you take advantage of AspenTechBs advanced &xchanger (esign

and )ating program to examine the thermal and mechanical design specifics of certain #$%$% heat

transfer models in the context of the whole flowsheet. Activated &() lets you convert these #$%$%

models into rigorous &() models. After conversion, Aspen #$%$% passes process conditions for

these models including stream and property curve data to the &() program. The &() Analysis can

report operational problems, evaluate performance under changing conditions, and size, rate, and

cost e/uipment over the full design life cycle.

E"# Eligi$le Calculations and E%uipment Models

%izing is using process conditions from the simulator to design the geometry of the unit. )ating is

using simulation inlet conditions and specified geometry to calculate outlet conditions. The following

models are eligible to take advantage of activated &() to do these calculations with the methods

shown below

!peration )ating %izing +omment

%hell * Tube

&xchanger

$es $es 'erform all from the #$%$% flowsheet

Air +ooled

&xchanger

$es $es 'erform all from the #$%$% flowsheet

=8> 'late -in

&xchanger

$es $es D D-or sizing, import operation into standalone

&() to do the calculations, then save the

.edr file and import it back into the rigorous

#$%$% model.

http://www.aspentech.com/nohelp.html?type=ELearning&relativeurl=%2FProduct%2520Content%2FE-Learning%2FAspen%2520HYSYS%2FHeat%2520Exchanger%2520Design%2520and%2520Rating&label=Heat%20Exchanger%20Design%20and%20Ratinghttp://www.aspentech.com/nohelp.html?type=ELearning&relativeurl=%2FProduct%2520Content%2FE-Learning%2FAspen%2520HYSYS%2FHeat%2520Exchanger%2520Design%2520and%2520Rating&label=Heat%20Exchanger%20Design%20and%20Rating


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-ired #eater $es 8 E A +alculate outlet conditions based on a fixed

fuel flow rate.

E"# Availa$le E c!anger &or'(ows

Another way of looking at rating and sizing rigorous exchangers in #$%$% is shown in the diagram

below

All four exchanger operations are eligible for rigorous calculations via &(). The Air +ooledand the %hell and Tube &xchanger are the unit operations that can be sized from the

#$%$% simulation environment.

Startin& the Anal sis

-easibility is the eligibility of a flowsheet model design for &() calculations. "se the E(R

E-changer easi0ility panel on the Activation dashboard to view a summary of the results

and risks associated with rigorous heat exchangers that are already modeled with Aspen

&xchanger (esign * )ating 1&()2.

The -easibility display looks like this


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The Un2nown value shows the number of non7&() heat transfer models in the case. These

models are not configured to use Aspen &(), so no other status information can be displayed

for them. These are the models that are eligible for conversion to )igorous.

The O# value shows the number of rigorous models that have no operational risk.The )t

Ris2 value indicates how many exchangers are reporting &() errors or warnings. )isks are

problems such as vibration, erosion, and excessive operating temperature and pressure.

The E(chan&er Summar TableThe &xchanger %ummary table is the main navigation tool for Activated &(). +lick the main

part of the E(R E-changer easi0ility panel to open the view

This view lists each exchanger in the flowsheet, its hierarchy level, its model status 1and a

button which lets you convert simple exchangers to rigorous and vice versa2, and its

operational risk summary, as well as icons for each type of risk. +lick the summary icon to see

the details for all risks for a specific exchanger


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$ou can click any heading in this table to sort the exchangers by that column.

Hi&hli&htin& E(chan&ers on the "lo!sheet

Activated &() uses on7flowsheet highlighting of exchanger objects to help you navigate the

unit operations it is dealing with .

"se the -easibility 'anel pull down menu to activate the flowsheet exchanger highlighting.

+heck or uncheck Show &odel Status or Show Ris2 Status to show or hide the

highlighting. The legend shows the colors assigned to the status %imple or )igorous, and for

the risk status !F, arning or )isk.

S!ow Model Status Hig!lig!ts


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Show &odel Status activates color7coded marker7rings around all exchangers in the

flowsheet.

#over the cursor over the ring to see a shortcut summary of the exchanger. -rom the shortcut

menu you can also convert the selected simple model to rigorous, or convert a rigorous modelback to a simple one.

S!ow #is' Status

The Show Ris2 option uses a wider ring to highlight models with at7risk status. #ere 1below2

Activated &() has highlighted two at risk &() models in yellow as having warnings attached

to their information. $ou can hover the cursor over the highlight to see a summary of the error

types. >o to the &xchanger %ummary Table for complete information.


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"ote/ Activated &conomics has a similar feature to highlight blocks on the flowsheet. hen you turn

on one of these features, the other is automatically turned off.

Activated Analysis

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