View source for OLI Evaporator

[[Category:Models]] [[Category:OLI]]
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{{OLI Header Tabs|currentpage=7}}

'''Related Links:''' [[OLI Overview#OLI SysCAD Project Workflow|OLI SysCAD Project Workflow]], [[Example_-_06_OLI_Projects#Potash_Crystallisation_Example_Project|OLI Example Project]]
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{{OLI version comment}}      
{{TOC}}
== General Description ==
{{Evaporator General Description |TPS=OLI  }}

== Inputs and Outputs ==

{{Evaporator Input and Output}}

== Behaviour when Model is OFF ==

If the user disables the unit, by un-ticking the ''On'' tick box, then the following actions occur:
* All material in streams connected to the 'Feed' and 'Recycle' inlets will flow straight out of the 'Product' outlet, with no change in phase or energy exchange with material flowing through the internal heat exchanger;
* All material in streams connected to the 'Embedded HX Shell' connections will have no change in phase or energy exchange with material flowing through the Evaporator;
* No sub-models will be called.

So basically, the unit will be 'bypassed' without the user having to change any connections.

== Model Theory ==

{{Evaporator Model Theory|EvapCalcType=OLI Calculations}}

===OLI===

{{TPS Unit Model Theory  | TPS = OLI | UnitOp = Evaporator | OutputStream=aqueous solution | DBFile = OLI database file (.dbs) |MapEachOnly = Yes| AllowSideCalc=No }}

== WorkFlow == 

{{TPS - Workflow | TPS=OLI | UnitOp=Evaporator|Unit_Op=Evaporator}}

== Flow Chart ==

[[Image:TCE_Evaporator_139.png|1000px]]

== Data Sections ==

The tabs and variable names are described in detail in the following tables.

# '''[[#OLIEvaporator tab page|OLIEvaporator]]''' tab - The first tab contains general information relating to the unit and allows the user to set the Heat Exchange type and flows.
# '''[[#TCE tab page|TCE]]''' tab - This tab allows the user to choose the corresponding [[OLI Model Configuration]] unit and set other TCE options.
# '''[[#Results Page|Results]]''' - This tab contains the results fields for the Evaporator.
# '''[[Embedded Heat Exchanger (HX)|HX]]''' - Optional tab, only visible if an Embedded Heat Exchanger is selected. (In this case the Embedded HX connections should be connected).
# '''[[Solid-Liquid Separator#Separ Page|Separ]]''' - Only visible if the Overflow stream is connected. The tab allows the user to specify the split between the Product and Overflow streams.
<!--# '''[[VLE]]''' - Always on.-->
# '''[[#Bypass tab page|Bypass]]''' - Always on, with H2O(g) bypassed.
# '''[[#RxnBypass tab page|RxnBypass]]''' - Always shown.
# '''[[#OLIResults tab page|OLIResults]]''' tab - This tab displays the key results of the calculations.
# '''[[#Input tab page|Input]]''' tab - This tab displays a summary of the mapped Input stream as OLI species.
# '''[[#Output tab page|Output]]''' tab - This tab displays the Output stream results including the amounts of each OLI species present in the final mixture.
# '''[[#Diff tab page|Diff]]''' tab - Optional tab, only visible if the ''ShowRxnDiff'' option is enabled on the [[#TCE tab page|TCE]] tab page. This tab displays the amounts of each species which are formed or reacted as part of the calculations.
# '''[[#Scaling tab page|Scaling]]''' tab - Optional tab, only visible if the ''ShowScaling'' option is enabled on the [[#TCE tab page|TCE]] tab.
# '''[[#ElemBal tab page|ElemBal]]''' tab - This tab displays an elemental balance between the Input and Output streams.
<!-- # '''[[#EnergyAudit tab page|EnergyAudit]]''' tab - This tab displays the overall energy values for the unit model. 
# '''[[#SpIonRxns tab page|SpIonRxns]]''' - Optional tab, only visible if the ''ShowSpIonRebuildRxns'' option is enabled on the [[#TCE tab page|TCE]] tab page. This tab shows how ions from the OLI product stream were assembled into SysCAD species. -->
# '''[[#PhDeport tab page|PhDeport]]''' tab - Optional tab, only visible if the ''PhaseElemDeportment'' option is enabled on the [[#TCE tab page|TCE]] tab page. This tab shows the movement of elements for the Solid, Liquid and Gas phases.
# '''[[#IPhDeport tab page|IPhDeport]]''' tab - Optional tab, only visible if the ''IPhaseElemDeportment'' option is enabled on the [[#TCE tab page|TCE]] tab page. This tab shows the movement of elements for individual OLI phases.
# '''[[#ParamSweep tab page|ParamSweep]]''' tab - Optional tab, only visible if the ''ShowPlotter'' option is enabled on the [[#TCE tab page|TCE]] tab page. This tab allows the user to generate sets of data.
# '''[[#SpForPlot tab page|SpForPlot]]''' tab - Optional tab, only visible if the ''SelectSp'' option is enabled on the [[#ParamSweep tab page|ParamSweep]] tab. This tab allows the user to select which species to be reported in the sets of data to be generated.
# '''[[Material Flow Section|QUnmapped]]''' - Optional tab, only visible if ''ShowQUnmapped'' is enabled on the [[#TCE tab page|TCE]] tab page.
# '''[[Material Flow Section|QRxnUnmapped]]''' - Optional tab, only visible if ''ShowQRxnUnmapped'' is enabled on the [[#TCE tab page|TCE]] tab page.
# '''[[Material Flow Section|QBypass]]''' - Optional tab, only visible if ''ShowQBypass'' is enabled on the [[#TCE tab page|TCE]] tab page.
# '''[[Material Flow Section|QRxnBypass]]''' - Optional tab, only visible if ''ShowQRxnBypass'' is enabled on the [[#TCE tab page|TCE]] tab page.
# '''[[#AppSp tab page|AppSp]]''' tab - Optional tab, only visible if the ''ShowAppSp'' option is enabled on the [[#TCE tab page|TCE]] tab.
# '''[[Material Flow Section|QFeed]]''' - Optional tab, only visible if ''ShowQFeed'' is enabled on the first tab page. This page shows the properties of the mixed stream as the feed to the Evaporator.
# '''[[Material Flow Section|QBodyFeed]]''' - Optional tab, only visible if ''ShowQBodyFeed'' is enabled on the first tab page. This page shows the properties of the mixed stream as the feed to the Body of the Evaporator.
# '''[[Material Flow Section|QRecycle]]''' - Optional tab, only visible if ''ShowQRecycle'' is enabled on the first tab page. This page shows the properties of the recycle stream.
# '''[[Material Flow Section|QProd]]''' - Optional tab, only visible if ''ShowQProd'' is enabled on the first tab page. This page shows the properties of the Evaporator discharge as a single stream.
# '''[[Common Data Sections#Common Data on Info Tab Page|Info]]''' tab - contains general settings for the unit and allows the user to include documentation about the unit and create Hyperlinks to external documents.
# '''[[Links Table|Links]]''' tab, contains a summary table for all the input and output streams. 
# '''[[Audit]]''' tab - contains summary information required for Mass and Energy balance. See [[Model Examples]] for enthalpy calculation Examples.

=== OLIEvaporator tab page ===

{{TCEEvaporator Tab Page|TCE =OLI}}

=== TCE tab page ===

{{TCE - no OpMode Tab Page | TCE =OLI| UnitOp=Evaporator| IncludeVLE=No|IncludeCFE=No|IncludeIons=Yes|IncludeHeatLoss=Yes}}

=== Results Page===

{{Evaporator Results Tab}}

=== HX Page ===

'''[[Embedded Heat Exchanger (HX)|HX]]''' - Optional tab, only visible if an Internal Heat Exchanger is selected. (In this case the Internal HX connections should be connected).
{{Embedded Heat Exchanger (HX) Data Section}}

=== Separ Page ===

{{Separ Table}}

=== Bypass tab page ===

{{TPS Bypass Tab Page|TPS=OLI|139only=Yes}}

=== RxnBypass tab page ===

{{TPS Bypass Tab Page|TPS=OLI|RxnBypass=Yes}}

=== OLIResults tab page ===

{{TPS Results Tab|TPS=OLI|139only=Yes|Mapping=FR}}

=== Input tab page ===

{{TPS Input Output Diff Tabs|Type=Input|TPS=OLI|139only=Yes}}

=== Output tab page ===

{{TPS Input Output Diff Tabs|Type=Output|TPS=OLI|139only=Yes}}

=== Diff tab page ===
This tab is only visible if ''ShowRxnDiff'' is ticked.  The displayed results are the difference between input and output streams.

{{TPS Input Output Diff Tabs|Type=Diff|TPS=OLI|139only=Yes}}

=== Scaling tab page ===
This tab is only visible if ''ShowScaling'' is ticked.  This page lists all the Saturation Index for all the solid species in the product.

{{TCE Scaling Tab|TCE=OLI}}

=== ElemBal tab page ===

{{TPS ElemBal Tab|TPS=OLI|139only=Yes}}

<!--
=== EnergyAudit tab page ===
Only displayed once model is successfully run.  -->

<!--

=== SpIonRxns tab page ===

This tab is only visible if ''ShowSpIonRebuildRxns'' is ticked.

{{TPS SpIonRxns Tab}}
-->

=== PhDeport tab page ===

{{TPS PhDeport Tab|TPS=OLI|139only=Yes}}

=== IPhDeport tab page ===

{{TPS IPhDeport Tab|TPS=OLI|139only=Yes}}

=== ParamSweep tab page ===

This tab is only visible if ''ShowPlotter'' is ticked. This option is only shown if this model has been successfully run.

{{TPS ParamSweep Tab|TPS=OLI|139only=Yes}}

=== SpForPlot tab page ===

{{TPS SpForPlot Tab|TPS=OLI|139only=Yes}}

=== AppSp tab page ===

This shows the apparent species (whole salts, acids, and bases) predicted using the OLI algorithm for species assembly from ions listed in the [[#Output tab page|Output]].  Species are separated into individual phase tables.

{{OLI AppSp Tab Page}}

== Adding this Model to a Project ==

{{TPS Add Model|TPS =OLI|UnitOp=Evaporator|Group=Energy Transfer}}

== Hints and Comments ==

# The information in the [[Vapour Liquid Equilibrium (VLE)|VLE Section]] must be correct for the Evaporator to operate as required. If the VLE configuration requires information that is not available, then the flashing will not occur.
# OLI uses the SysCAD VLE submodel to perform flashing.  Vapour-Liquid Equilibrium is not directly calculated by OLI.