View source for Alumina 3 Bayer Species Model

[[Category:Alumina]] [[Category:Species]]
{{Navigation|[[Models]]|[[Models#Alumina Models|Alumina Models]]|altname=Bayer3 Species Model}}
{{Alumina3 Header Table|currentpage=1}}

'''Related Links:''' [[Precipitation3]], [[Models#Species Models|Species Models]]

----
{{TOC}}
== General Description ==

The Alumina3 Bayer species model is used to calculate the properties of fluids within an Alumina project using equations defined in the public domain. 

The unit operation [[Precipitation3]] requires Alumina3 Bayer species model to function properly.  Please see [[Precipitation3]] for documentation.

'''Note:''' The [[Example Projects#Precipitation Projects|Precipitation Projects]] and [[Example Projects#Digestion Projects|Digestion Projects]], which are distributed with SysCAD in the Examples Folder, demonstrate the use of the Alumina 3 Bayer species model in SysCAD projects.

== Configuring Bayer3 Species Model ==

In order for the Bayer3 Species Model to be available in a project, it must included in the configuration file of the project.

{{Adding SubModel to a Project | DllName=Alumina3 | DllSubGroup=Species Models | UnitOp=Bayer3 | Group=Alumina3}}

==Required Chemical Compounds==

The following species are referenced by the Alumina3 set of models and are required in the species database and configuration file, except for Sodium Fluoride, which is optional. If it is present in the database, its effects will be included in the correlation calculations.

{|
|-
|<u>VAPOUR</u> ||   ||  ||
|-
| || H2O(g) || - ||Water Vapour 
|-
|<u>LIQUIDS</u> || || ||
|-
| || H2O(l) || - || Water
|-
| || NaAl[OH]4(aq)|| - || Sodium Aluminate
|-
| || NaOH(aq)|| - || Caustic Soda
|-
| || Na2CO3(aq) || - || Sodium Carbonate
|-
| || Na2SO4(aq) || - || Sodium Sulphate
|-
| || NaCl(aq)|| - || Sodium Chloride
|-
| || Na2SiO3(aq) || - || Sodium Silicate
|-
| || NaF(aq) || - || Sodium Fluoride (Optional)
|-
|<u>ORGANICS</u>||  ||
|-
| || Na2C2O4(aq) || - || Sodium Oxalate
|-
| || Na2C5O7(aq) || - || Organic compound representation
|-
|<u>SOLIDS</u> ||  ||
|-
| || Al[OH]3(s) || - || Gibbsite (THA)
|-
| || Al2O3(s) || - || Alumina Solid
|-
| || Na2O(s) || - || Occluded Soda
|-
| || NaOH*(s) || - || Bound Soda (Optional)  NOTE: This is only used when using the Precipitation3 unit operation.
|-
| || Na2C5O7*(s) || - || Bound Organics (Optional)  NOTE: This is only used when using the Precipitation3 unit operation.
|}

Note: Sodium Fluoride is ''not'' required but will be included in total sodium calculation if present.

== Model Theory ==

Please see '''[[Bayer3 Species Model Theory|Bayer Species Model Theory]]''' for the equations used.

All of the properties that are not explicitly calculated by this model are calculated using the [[Standard Species Model]].

Please see [[General Bayer Data]] for some general discussion topics.

==Bayer Property Calculation Method==

Some Bayer properties have different calculation methods, user may select which method to use in the project.  Please note that the method selected is Global to the project.  

The method and Constants selection can be selected from Plant Model - Global Tab:

:[[File:Alumina3Global.png]]

Please see [[Alumina_3_Bayer_Species_Model#Global_Properties_Calculation_Method_Selection|Global Properties Calculation Method Selection ]] for more information.

== Selecting a Bayer Species Model in a Feeder ==
The user must have a project that includes a Bayer species model in the configuration file as shown below.  
:[[Image:AlSpModelSelection1.png]]

It is then possible to select the Bayer model (either Bayer3 or a client-specific Bayer model).  
*On the Feeder access window there is a field 'SpModel.Reqd' where the user may select the model, as shown below:
:[[Image:AlSpModelSelection2.png]]

{|border="1" cellpadding="5" cellspacing="0"   
|width=120|'''Tag (Long/Short)'''||width=100|'''Input / Calc'''||'''Description/Calculated Variables / Options'''
|-
|   rowspan="3" |SpModel.Reqd || Inherit || Model used follows upstream units.
|-
|Standard ||  All the variables are calculated using the Mass Weighted Mean of the species.
|-
|Bayer Species Model || 'Bayer Species Model' will be the Bayer model included in the configuration file. In the view above this is 'Bayer3', but may be a client-specific Bayer model. Density, Cp, Boiling Point Elevation, etc. are calculated using the equations defined for that particular Bayer species model.
|-
|}

==Bayer Liquor Calculator==

When defining a Bayer Liquor stream, it is possible to have SysCAD calculate the feed composition based on user defined Bayer species concentrations and ratios.

This is done in the Feeder unit - but only in a 'True' feeder, i.e. not connected to a sink on a different flowhseet:
* First turn on the Calculator, by ticking the '''Calculator''' checkbox ([[Image:Button Small 1.png]]) located on the FeederSink Tab,
* Then go to the newly created tab called '''Calc''', and define the required composition. All inputs are at 25°C.
* [[Image:Button Small 2.png]] NaF_Reqd is only visible if it is selected in the project configuration file.
* [[Image:Button Small 3.png]] OtherLiquidMethod is only visible is there are other liquid species selected in the project configuration file in addition to the [[#Required_Chemical_Compounds|Required alumina 3 liquid species]].  

This is shown in the images below:

:[[File:Alumina3Calculator.png]]
:For more information on the feed calculator variables, please see [[Alumina_3_Bayer_Species_Model#Calculator_-_Bayer_Feed_Calculator|Calculator - Bayer Feed Calculator]].

The calculated feed composition will be set into the DSp tab. The variables set by the calculator are indicated by the yellow background. 
:[[File:Alumina3CalculatorValSet.png]] 

NOTE: 
#If the calculator is enabled, the user may NOT manually change the feed composition on the DSp tab. All changes must be made on the Calc tab.
#The calculator will calculate the required concentration based on the [[#Required_Chemical_Compounds|required alumina 3 liquid species]], if other liquid species are present and contain user specified values, the final concentrations might not match the calculator specifications.  Please select one of the "OtherLiquidMethod" to help reduce this error.
#The user may enable the calculator once to get an idea of the values, and then turn the calculator off to manually change the DSp tab values, if required.
#If the feeder is connected to a sink on another flowsheet, the calculated values are ignored.

== Bauxite Feed Composition ==

When defining the bauxite feed composition, user would often need to convert the lab results (normally presented in Al2O3 and SiO2 basis) to SysCAD species (Al[OH]3, AlO.OH, 2SiO2.Al2O3.2H2O, etc.).

There are a number of ways to convert the data:
# manipulate the lab results data using external software such as MS Excel, then set the species compositions into SysCAD.  If using this method, we recommend using molecular weight data from SysCAD to ensure the calculated data will be matched.
# manipulate the lab results data using a [[General Controller]]. (Please see [[Bauxite Composition Example]] for a sample PGM file)
# define and modify the composition using SysCAD species, then check the results using [[Calculation Configuration|user defined calculations]]

== Size Data == 

If the Bayer stream has Alumina Particle Size information for use in [[Precipitation3]] unit model, see the relevant quality model documentation for [[Specific Surface Area (SSA)]] or [[Size Distribution (PSD)]] for display and configuration information.

== Data Sections ==

=== Global Properties Calculation Method Selection ===

{| border="1" cellpadding="5" cellspacing="0" 
|-
|width=150|'''Tag (Long/Short)'''||width=100|'''Input / Calc'''||'''Description/Calculated Variables / Options'''
|- 
|font style="background: #ebebeb" colspan="3" align="left" | ''Menu Command '''View''' - '''Plant Model''' - '''Globals''' Tab - '''Bayer Properties''':''
|-
|rowspan=2| ASatMethod || Rosenberg || Saturated Alumina concentration.  See [[Bayer3 Species Model Theory#Saturated_Alumina_Concentration|Saturated Alumina Concentration]] for equations used. 
|-
| RosenbergUser || This uses the same equation as above, but user are able to adjust all the constants in the equation manually.
|-
|rowspan=2| SpecHtMethod ||  LM_1985 || See [[Bayer3 Species Model Theory#Heat_Capacity_Calculations|Heat Capacity Calculations]] for equations used.
|-
|Mulloy Donaldson ||  See [[Bayer3 Species Model Theory#Heat_Capacity_Calculations|Heat Capacity Calculations]] for equations used. 
|-
|rowspan=2| EntropyMethod|| Standard ||Entropy is calculated by the Standard Species Model using mass weighted mean. 
|-
|LM_1985 ||Based on the LM1985 specific heat. Please see [[General_Bayer_Data#Entropy|Entropy Calculations]] for equation used. 
|-
| SpecHt_UseScale || Tickbox || This allows user to add in a scaling factor for the calculated Bayer Specific Heat value, useful when tuning project to match plant conditions.
|-
| SpecHt_Factor || Input|| This field is only visible if the ''SpecHt_UseScale'' tick box is selected. Used to adjust the calculated Bayer Specific Heat value linearly.
|-
|rowspan=2| DensityMethod ||MulloyDonaldson||   See [[Bayer3 Species Model Theory#Density_Calculations|Density Calculations]] for equations used. 
|-
| MulloyDonaldsonUser || This uses the same equation as above, but user are able to adjust all the constants in the equation manually.
|-
| Density_UseScale || Tickbox || This allows user to add in a scaling factor for the Bayer Liquor Density value, useful when tuning project to match plant conditions.
|-
| Density_Factor || Input || This field is only visible if the ''Density_UseScale'' tick box is selected. Used to adjust the calculated Bayer Density value linearly.
|-
|rowspan=4|BPEMethod || Dewey || See [[Bayer3 Species Model Theory#Boiling Point Elevation|Boiling Point Elevation]] for equations used. 
|-
| Adamson || See [[Bayer3 Species Model Theory#Boiling Point Elevation|Boiling Point Elevation]] for equations used. 
|-
| Dewey All Liq || This is the same calculation as '''Dewey''' option, but using molality for ALL liquid species present in the stream. This option will deprecated in future builds.
|-
| Dewey All Aq || {{Available139|36389}} This is the same calculation as '''Dewey''' option, but using molality for ALL aqueous species present in the stream.
|-
| BPE_UseCorrectedDewey || Tickbox || {{Available139|36389}} This enables a correction to the '''Dewey''' option to account for the water contained in aluminate (NaAl[OH]4) when calculating molality. This option will be enforced in future builds.
|-
| BPE_UseScaleOffset || Tickbox || This enables a global correction (Scale Factor and Offset) to the calculated BPE value.  The resulting BPE has a lower limit 0 degrees.
|-
| BPE_Factor || Input || This field is only visible if the ''BPE_UseScaleOffset'' option is selected. Scale for global correction value for Boiling Point Elevation where final BPE = Calculated BPE * BPE Factor + BPE Offset. Result is limited to a minimum of zero.
|-
| BPE_Offset || Input || This field is only visible if the ''BPE_UseScaleOffset'' option is selected. Offset for global correction value for Boiling Point Elevation where final BPE = Calculated BPE * BPE Factor + BPE Offset. Result is limited to a minimum of zero.
|-
|rowspan=2| ViscMethod || EMA1962 || Liquid Viscosity.  Limitation apply, see [[Bayer3 Species Model Theory#Viscosity|Viscosity]] for equations used. 
|-
| Alexandrov || Caustic solution viscosity. See [[Bayer3 Species Model Theory#Viscosity|Viscosity]] for equations used.
|-
|rowspan=2|OxalateEqMethod || Burnt Island || This is the original method implemented in SysCAD, but should be used with caution.
|-
| Beckham Grocott || This method is based on synthetic liquor and tuned to plant liquor. <br> See [[Bayer3 Species Model Theory#Oxalate Equilibrium|Oxalate Equilibrium]] for equations used.
|-
| OxalateEq_UseScaleOffset || Tickbox || This enables a global correction (Scale Factor and Offset) to the calculated Oxalate Equilibrium value.  The resulting Oxalate Equilibrium is limited between 0 and 100 g/L Na2C2O4.
|-
| OxalateEq_Factor || Input || This field is only visible if the ''OxalateEq_UseScaleOffset'' option is selected. Scale for global correction value for Oxalate Equilibrium where final OxEq = Calculated OxEq * OxEq Factor + OxEq Offset. Result is limited to a minimum of zero.
|-
| OxalateEq_Offset || Input || This field is only visible if the ''OxalateEq_UseScaleOffset'' option is selected. Offset for global correction value for Oxalate Equilibrium where final OxEq = Calculated OxEq * OxEq Factor + OxEq Offset. Result is limited to a minimum of zero.
|-
| H2OTestFrac0 || Input || This is used to handle very dilute concentration in the stream.  If the Water Fraction in the stream is higher than this value, then the stream property will be calculated using the [[Standard Species Model]].  The maximum value for this is 99.99%.
|-
| H2OTestFrac1  || Input || This is used to handle very dilute concentration in the stream.  If the Water Fraction in the stream is lower than this value, then the stream property will be calculated using the Bayer3 Species model.  For water fraction higher than this value but lower than H2OTestFrac0, a proportional calculation will be performed using both the [[Standard Species Model]] and the Bayer3 Species model.
|- 
|ShowNa2O_Equiv || Input || Selecting this option will add to the display list of Bayer liquor properties variables expressed on Na2O basis.
|-
|}

=== Calculator - Bayer Feed Calculator ===

{| border="1" cellpadding="5" cellspacing="0" 
|-
|width=150|'''Tag (Long/Short)'''||width=100|'''Input (Maximum)'''||'''Description/Calculated Variables / Options'''
|- 
|font style="background: #ebebeb" colspan="3" align="left" | '' Bayer Liquor Design Values''
|-
|valign="top"| DefineLiquor ||valign="top"| Check Box || If this box is checked, the Feeder will automatically calculate the make-up of the feed stream, based on the variables supplied below.
|-
|valign="top"| Rqd_A/C / A/C_Reqd||valign="top"| Input (0.962003767) <br>(MW<sub>Al2O3</sub>/MW<sub>Na2CO3</sub>) || The required ratio of '''A:C''' in the Feed stream, where '''A''' is Sodium Aluminate NaAl[OH]<sub>4</sub> concentration, expressed as grams of  Al<sub>2</sub>O<sub>3</sub> /L liquor and '''C''' is Caustic Soda concentration in NaOH + NaAl[OH]<sub>4</sub>, expressed as grams Na<sub>2</sub>CO<sub>3</sub>/L liquor.
|-
|valign="top"| Rqd_C/S / C/S_Reqd || valign="top"| Input (1.0) || The required ratio of '''C:S''' in the Feed stream, where '''C''' is Caustic Soda concentration in NaOH + NaAl[OH]<sub>4</sub>, expressed as grams Na<sub>2</sub>CO<sub>3</sub>/L liquor and '''S''' is '''C'''+ Na<sub>2</sub>CO<sub>3</sub> concentration, expressed as grams Na<sub>2</sub>CO<sub>3</sub>/L liquor.  A minimum ratio of 0.1 is applied, however depending on other required concentrations a low A/C ratio can result in an unachievable mixture.  
|-
|valign="top"| Rqd_C / C_Reqd || valign="top"| Input (550.0) || The required Caustic Soda concentration in NaOH + NaAl[OH]<sub>4</sub>, expressed as grams Na<sub>2</sub>CO<sub>3</sub>/L liquor @ 25°C.  
|-
| Rqd_Na2SO4 / Na2SO4_Reqd || Input (550.0) || Required concentration of Na<sub>2</sub>SO<sub>4</sub> in g/L @ 25°C 
|-
| Rqd_NaCl / NaCl_Reqd  || Input (550.0) || Required concentration of NaCl in g/L @ 25°C 
|-
| Rqd_NaF / NaF_Reqd ||  Input (50.0) || Required concentration of NaF in g/L @ 25°C. Only appears if NaF is present as a species. 
|-
| Rqd_Oxalate / Oxalate_Reqd|| Input (550.0) || Required concentration of oxalate in g/L @ 25°C.  
|-
| Rqd_TOC / TOC_Reqd || Input (200.0) || Required total organics [Na<sub>2</sub>C<sub>5</sub>O<sub>7</sub>(aq) + Na<sub>2</sub>C<sub>2</sub>O<sub>4</sub>(aq)] concentration in the stream expressed as grams of elemental carbon /L liquor @ 25°C. This determines the non oxalate organics. If the specified oxalate organics result in a higher TOC than specified, non oxalate organics are set to zero.  
|-
| Rqd_SiO2 / SiO2_Reqd || Input (550.0) || Required concentration of Na<sub>2</sub>SiO<sub>3</sub> expressed as grams SiO<sub>2</sub> /L liquor @ 25°C 
|-
|font style="background: #ebebeb" colspan=3|The '''OtherLiquidMethod''' droplist is only visible when other liquid species in addition to the [[#Required_Chemical_Compounds|Required alumina 3 liquid species]] are present in the project.
|-
| rowspan=4|OtherLiquidMethod || Zero Other Liqs ||Selecting this method will set all the liquid flows not used by the bayer calculation to zero, this will ensure the output from Bayer DefineLiquor will match the specified concentrations.
|-
| Original|| (This method is NOT recommended, it is available only for backward compatibility.)  User can manually specify composition for the other liquids, the amount of liquids specified will be added to the Total from the Bayer DefineLiquor Calculation.  That means, the end result may not match the specified concentrations.
|-
| Reduce Bayer Liqs||  User can manually specify composition for the other liquids.  The calculated bayer liquor composition will be adjusted to offset the user specified values. The end result may not match the specified concentrations. 
|-
| Reduce Water Only||  (This is the recommended method). User can manually specify composition for the other liquids.  The calculated water composition will be adjusted to offset the user specified values.  The end result will match the specified concentrations. 
|-
| rowspan=2|SolidsDefn || Mass Fraction Solids|| The required solids are specified by solids mass fraction.
|-
| Total Solids Conc||  The required solids are specified by total solids concentration.
|-
| SolFracReqd / Rqd_SolFrac || Input (0.99) || The mass fraction of solids in the feed. The proportion of the different solid species is maintained. If there are no solid species specified then THA is assumed. 
|-
| SolConcReqd / Rqd_SolConc || Input (1600.0) || The concentration (at 25°C) of solids in the liquor. The proportion of the different solid species is maintained. If there are no solid species specified then THA is assumed. 
|}

=== Bayer Properties Data ===

{| border="1" cellpadding="5" cellspacing="0" 
|-  
|width=150|'''Tag (Long/Short)'''||width=100|'''Input / Calc'''||'''Description/Calculated Variables / Options'''
|-
|font style="background: #ebebeb" colspan="3" | ''Bayer Liquor Values @ 25°C''
|-
| A <nowiki> | </nowiki> AluminaConc || font style="background: #ebebeb"|Calc || NaAl[OH]<sub>4</sub> concentration expressed as Al<sub>2</sub>O<sub>3</sub> @ 25°C. (g/L liquor)
|-
| C <nowiki> | </nowiki> CausticConc ||font style="background: #ebebeb"| Calc || NaOH + NaAl[OH]<sub>4</sub> concentration, expressed as grams Na<sub>2</sub>CO<sub>3</sub>/L liquor @ 25°C.
|-
| S <nowiki> | </nowiki> SodaConc ||font style="background: #ebebeb"| Calc || NaOH + NaAl[OH]<sub>4</sub> + Na<sub>2</sub>CO<sub>3</sub> concentration, expressed as grams Na<sub>2</sub>CO<sub>3</sub>/L liquor @ 25°C.
|-
| A/C ||font style="background: #ebebeb"| Calc || Ratio of A to C
|-
| C/S ||font style="background: #ebebeb"| Calc || Ratio of C to S
|-
| Cl/C ||font style="background: #ebebeb"| Calc || Ratio of Cl to C
|-
| TOC@25 || font style="background: #ebebeb"|Calc || Total Organic Carbon concentration, as carbon equivalent. Grams of [Na<sub>2</sub>C<sub>5</sub>O<sub>7</sub>*5 + Na<sub>2</sub>C<sub>2</sub>O<sub>4</sub>*2] / L liquor @ 25°C.
|-
| SodiumCarbConc ||font style="background: #ebebeb"| Calc || Sodium Carbonate concentration
|-
| SolidConc25 ||font style="background: #ebebeb"| Calc || Expressed as grams of solids / L Slurry @ 25°C.
|-
| FC <nowiki> | </nowiki> FreeCaustic ||font style="background: #ebebeb"| Calc || Free Caustic, Caustic Concentration excluding the amount asscoiated with NaAl[OH]4, expressed as g/L of Na<sub>2</sub>CO<sub>3</sub>. 
|-
| Sulphate*@25  ||font style="background: #ebebeb"| Calc || Sodium Sulphate concentration @ 25°C
|-
| Chloride*@25  ||font style="background: #ebebeb"| Calc || Sodium Chloride concentration @ 25°C
|-
| Oxalate*@25  ||font style="background: #ebebeb"| Calc || Oxalate Concentration @ 25°C
|-
| Silica*@25  ||font style="background: #ebebeb"| Calc || Silicate Concentration as SiO2 @ 25°C
|-
| Silica/C  ||font style="background: #ebebeb"| Calc || Silica to Caustic ratio times 1000.
|- 
|font style="background: #ebebeb" colspan="3" | ''Concentration @ 25°C, as Na<sub>2</sub>CO<sub>3</sub> equivalent''
|-
| Organate@25 ||font style="background: #ebebeb"| Calc || Grams of organic Na<sub>2</sub>C<sub>5</sub>O<sub>7</sub>(l) / L liquor @ 25°C.
|-
| Oxalate@25 ||font style="background: #ebebeb"| Calc || Grams of oxalate Na<sub>2</sub>C<sub>2</sub>O<sub>4</sub>(l) / L liquor @ 25°C. 
|-
| NaCl@25 || font style="background: #ebebeb"| Calc || Grams of NaCl(l) / L liquor @ 25°C. 
|-
| Na2SO4@25 ||font style="background: #ebebeb"| Calc || Grams of Na<sub>2</sub>SO<sub>4</sub>(l) / L liquor @ 25°C. 
|-
| TotalNa@25 ||font style="background: #ebebeb"| Calc || Total sodium as per [[Bayer3_Species_Model_Theory#Nomenclature_and_Units|T<sub>Na</sub> Equation in Model Theory]] section, but expressed as g/L liquor @ 25°C.
|- 
|font style="background: #ebebeb" colspan="3" | ''Other properties @ 25°C''
|-
| LRho25 <nowiki> | </nowiki> LiquidDensity@25 ||font style="background: #ebebeb"| Calc || The liquor density @ 25°C. 
|-
| SLRho25 <nowiki> | </nowiki> SlurryDensity@25 ||font style="background: #ebebeb"| Calc || The slurry density @ 25°C. 
|-
| LQv25 <nowiki> | </nowiki> LVolFlow25 ||font style="background: #ebebeb"| Calc || Liquor Volumetric Flowrate @25°C.
|-
| SLQv25 <nowiki> | </nowiki> SLVolFlow25 ||font style="background: #ebebeb"| Calc || Slurry Volumetric Flowrate @25°C.
|-
|font style="background: #ebebeb" colspan="3" | ''Bayer Liquor Values @ 25 °C, as Na2O Equivalent''  <br/> NOTE: This group of variables is only visible if the '' View | PlantModel |[[#Global_Properties_Calculation_Method_Selection|Globals - ShowNa2O_Equiv]] '' tickbox is selected.
|-
| C_Na2O ||font style="background: #ebebeb"| Calc || NaOH + NaAl[OH]<sub>4</sub> concentration, expressed as grams Na<sub>2</sub>O/L liquor @ 25°C.
|-
| S_Na2O ||font style="background: #ebebeb"| Calc || NaOH + NaAl[OH]<sub>4</sub> + Na<sub>2</sub>CO<sub>3</sub> concentration, expressed as grams Na<sub>2</sub>O/L liquor @ 25°C.
|-
| TotalNa@25_Na2O ||font style="background: #ebebeb"| Calc || Total Sodium, expressed as grams Na<sub>2</sub>O/L Liquor @ 25°C.
|-
| RP <nowiki> | </nowiki> A/C_Na2O ||font style="background: #ebebeb"| Calc || Ratio of A : C expressed as Na<sub>2</sub>O.
|-
| RPSat <nowiki> | </nowiki> A/C_Sat_Na2O ||font style="background: #ebebeb"| Calc || Ratio of ASat : C@25 expressed as Na<sub>2</sub>O.
|-
|font style="background: #ebebeb" colspan="3" | ''Bayer Liquor Values @ Temperature''
|-
| A@T <nowiki> | </nowiki> AluminaConcT ||font style="background: #ebebeb"| Calc || Al<sub>2</sub>O<sub>3</sub> concentration @ Temperature (g/L liquor)
|-
| C@T <nowiki> | </nowiki> CausticConcT ||font style="background: #ebebeb"| Calc || NaOH + NaAl[OH]<sub>4</sub> concentration, expressed as grams Na<sub>2</sub>CO<sub>3</sub>/L liquor @ Temperature.
|-
| S@T <nowiki> | </nowiki> SodaConcT ||font style="background: #ebebeb"| Calc || NaOH + NaAl[OH]<sub>4</sub> + Na<sub>2</sub>CO<sub>3</sub> concentration, expressed as grams Na<sub>2</sub>CO<sub>3</sub>/L Liquor @ Temperature.
|-
| TOC@T ||font style="background: #ebebeb"| Calc || Total organic carbon concentration as Carbon equivalent. Grams of [Na<sub>2</sub>C<sub>5</sub>O<sub>7</sub>*5 + Na<sub>2</sub>C<sub>2</sub>O<sub>4</sub>*2] / L liquor @ Temperature.
|-
| SodiumCarbConc@T ||font style="background: #ebebeb"| Calc || Sodium Carbonate concentration @ Temperature.
|-
| SolidConc@T ||font style="background: #ebebeb"| Calc || Expressed as grams of solids / L Slurry @ Temperature.
|-
| BPE@T <nowiki> | </nowiki> BoilPtElev ||font style="background: #ebebeb"| Calc || Boiling Point Elevation calculated as a function of stream temperature.  <br> Note: this differs to the BPE value displayed under the Saturation section as BPE is calculated as a function of pressure.  The two values and BPE@P will be the same if the stream is at saturated conditions.
|-
| BPE@P <nowiki> | </nowiki> BoilPtElev@P ||font style="background: #ebebeb"| Calc || Boiling Point Elevation calculated as a function of stream pressure.  <br> Note: this is the same as the BPE value displayed under the Saturation section.  BPE@T will be the same as BPE@P if the stream is at saturated conditions.
|-
| Molality ||font style="background: #ebebeb"| Calc || Molality of the liquor using ALL liquid species. <math>\frac{n_{solute}}{m_{solvent}}</math>, where:
:<math>n_{solute}</math> = total moles of liquid species (excluding water)
:<math>m_{solvent}</math> = mass of water
{{Removed139|36061}}
|-
| ViscL <nowiki> | </nowiki> ViscosityLiquor ||font style="background: #ebebeb"| Calc || Viscosity of the liquid phase. Based on selected [[Bayer3_Species_Model_Theory#Viscosity|Viscosity]] method.
|-
| ViscSL <nowiki> | </nowiki> ViscositySlurry ||font style="background: #ebebeb"| Calc || Viscosity of the combined liquid and solid phases (slurry). Based on selected [[Bayer3_Species_Model_Theory#Viscosity|Viscosity]] method.
|-
|font style="background: #ebebeb" colspan="3" | ''Bayer Liquor Values @ T, as Na2O Equivalent'' <br/> NOTE: This group of variables is only visible if the '' View | PlantModel |[[#Global_Properties_Calculation_Method_Selection|Globals - ShowNa2O_Equiv]] '' tickbox is selected.
|-
| CausticConc@T_Na2O ||font style="background: #ebebeb"| Calc || NaOH concentration, expressed as grams Na<sub>2</sub>O/L liquor @ Temperature.
|-
| SodaConc@T_Na2O ||font style="background: #ebebeb"| Calc || NaOH plus Na<sub>2</sub>CO<sub>3</sub> concentration, expressed as grams Na<sub>2</sub>O/L liquor @ Temperature.
|-
| TotalNa@T_Na2O ||font style="background: #ebebeb"| Calc || Total Sodium, expressed as grams Na<sub>2</sub>O/L Liquor @ Temperature.
|-
|font style="background: #ebebeb" colspan="3" |'' Bayer Liquor Solubility Properties @ T''
|-
| ASat <nowiki> | </nowiki> A_Saturation ||font style="background: #ebebeb"| Calc || The saturated Alumina concentration @ stream temperature. (Note: As described in [[Bayer3_Species_Model_Theory#Saturated_Alumina_Concentration|Model Theory]], concentrations used in the correlation are referenced to 25°C).
|-
| AConcEquil <nowiki> | </nowiki> AConcEquilibrium ||font style="background: #ebebeb"| Calc || Alumina Concentration (A) at ''Equilibrium'', i.e. accounting for changes in composition to liquor if equilibrium saturation is reached.
|-
| CConcEquil <nowiki> | </nowiki> CConcEquilibrium ||font style="background: #ebebeb"| Calc || Caustic Concentration (C) at ''Equilibrium'', i.e. accounting for changes in composition to liquor if equilibrium saturation is reached.
|-
| A/CSat <nowiki> | </nowiki> A/C_Saturation ||font style="background: #ebebeb"| Calc || The ratio of ASat : C.  (Note: Concentrations used in ASat correlation are referenced to 25°C, so ratio is ASat : C@25).
|-
| SSN_Ratio ||font style="background: #ebebeb"| Calc || The ratio of A : ASat which is the same as ratio of fields 'A/C' : 'A/CSat'.  (Note: Concentrations used in ASat correlation are referenced to 25°C, so ratio is A@25 : ASat). 
|-
| SSN_Ratio1 ||font style="background: #ebebeb"| Calc || = SSN_Ratio - 1
|-
| A_ASat_Diff ||font style="background: #ebebeb"| Calc || The difference between Alumina Concentration @ temperature and Alumina Saturation Concentration.  So result is fields 'A@T' - 'ASat'.
|-
| I <nowiki> | </nowiki> IonicStrength ||font style="background: #ebebeb"| Calc || The Ionic strength. See model theory under Alumina Saturation for equation.
|-
| OxalateEq <nowiki> | </nowiki> OxalateEquilibrium||font style="background: #ebebeb"| Calc || The Oxalate Equilibrium value. See [[Bayer3_Species_Model_Theory#Oxalate_Equilibrium|Model Theory]] for equation.
|-
| THA.Qm <nowiki> | </nowiki> THAMassFlow ||font style="background: #ebebeb"| Calc || The mass flowrate of THA - Al[OH]<sub>3</sub>(s).
|-
| THA.Rho <nowiki> | </nowiki> THADens ||font style="background: #ebebeb"| Calc || The density of THA - Al[OH]<sub>3</sub>(s).
|}

=== Individual Component Volume Flow/Fraction Displays for Bayer streams ===

See [[General Bayer Data]]