PHREEQC Direct Calc
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Navigation: Models ➔ TCE Models ➔ PHREEQC ➔ PHREEQC Direct Calc
Latest SysCAD Version: 25 October 2024 - SysCAD 9.3 Build 139.36522
Related Links: PHREEQC SysCAD Project Workflow
Formally released as part of Build 139 (first available as BETA version in Build 138). The PHREEQC SysCAD TCE option and models documentation is for the latest version of SysCAD.
General Description
The PHREEQC Direct Calc model allows the user to 'call' the PHREEQC solver to determine the state of an aqueous solution at a given temperature/enthalpy and pressure. The user enters the mass or molar makeup of the 'Feed' stream, and the unit will then determine the equilibrium conditions of the resulting stream at the user defined temperature/enthalpy and pressure.
The model has no links to any other models in SysCAD. Therefore, this model is not a part of any SysCAD network, but is a stand-alone calculation that allows the user to check the status of an aqueous solution.
Notes
- The user MUST have added and configured a PHREEQC Model Configuration unit in the SysCAD project before this unit can function.
- The user MUST have installed a version of PHREEQC on their computer to make use of the PHREEQC functionality in SysCAD. Please see https://www.usgs.gov/software/phreeqc-version-3 for more information.
Diagram
The diagram shows the default drawing of a PHREEQC Direct Calc unit model.
Inputs and Outputs
There are no connections to this unit.
Model Theory
The PHREEQC Direct Calc Model uses the PHREEQC algorithms and data to determine the status of the aqueous solution.
The PHREEQC Direct Calc Model calls the PHREEQC algorithms to determine the status of the mixture using the PHREEQC "DInput" data. The PHREEQC results are displayed in the "Output" tab using PHREEQC species.
The DInput, Input, Output and Diff pages are displayed using PHREEQC species, as defined in the database (.dat) file specified in the corresponding PHREEQC Model Configuration unit model. The species used in the SysCAD project are not used in this model.
The calculations performed are similar to using PHREEQC directly. Please see https://www.usgs.gov/software/phreeqc-version-3 for more information.
Calculation of Osmotic Pressure
PHREEQC calculates the activity of water, which is then used to calculate the osmotic pressure by the Van't Hoff formula. The Van't Hoff formula is:
[math]\displaystyle{ \Pi=-\frac{RT}{\overline{V}}ln(a_w) }[/math]
where [math]\displaystyle{ \Pi }[/math] is the osmotic pressure, [math]\displaystyle{ \overline{V} }[/math] is the partial molar volume of water (ideal), and [math]\displaystyle{ a_w }[/math] is the activity of water (mole fraction basis).
Workflow
The suggested workflow for configuring the model is:
- Make sure the project contains at least one of the PHREEQC Model Configuration model, and the model is loaded with the correct PHREEQC database file you would like to use for the direct calculation.
- On the Direct Calc DInput tab page, type in the required feed properties for T, P and mass or mole flow of individual species.
- Perform an equilibrium calculation based on constant Temperature by pressing the
button on the PHREEQCDirectCalc tab page. - The Results are displayed on the PHREEQCResults and Output tabs.
NOTES:
- The PHREEQC Direct Calc Model does not require species mapping between PHREEQC and SysCAD.
Data Sections
The tabs and variable names are described in detail in the following tables.
- PHREEQCDirectCalc tab - This first tab allows the user to choose the corresponding PHREEQC Model Configuration unit and set some general options.
- DInput tab - This tab allows the user to set the final conditions, specify the Input composition and perform calculations.
- CFE - Optional tab, only visible if the UseCFE option is enabled on the first tab page.
- PHREEQCResults tab - This tab displays the key results of the calculations.
- Input tab - This tab displays a summary of the Input stream.
- Output tab - This tab displays the Output stream results including the amounts of each species present in the final solution.
- Diff tab - Optional tab, only visible if the ShowRxnDiff option is enabled on the first tab page. This tab displays the amounts of each species which are formed or reacted as part of the calculations.
- Scaling tab - Optional tab, only visible if the ShowScaling option is enabled on the TCE tab.
- ElemBal tab - This tab displays an elemental balance between the Input and Output streams.
- PhDeport/Deportment tab - Optional tab, only visible if the PhaseElemDeportment option is enabled on the first tab page. This tab shows the movement of elements for the Solid, Liquid and Gas phases.
- IPhDeport tab - Optional tab, only visible if the IPhaseElemDeportment option is enabled on the first tab page. This tab shows the movement of elements for the individual PHREEQC phases.
- UnitTag.ParamSweep tab - Optional tab, only visible if the ShowPlotter option is enabled on the first tab page. This tab allows the user to generate sets of data.
- SpForPlot tab - Optional tab, only visible if the SelectSp option is enabled on the UnitTag.ParamSweep tab. This tab allows the user to select which species to be reported in the sets of data to be generated.
- Info tab - contains general settings for the unit and allows the user to include documentation about the unit and create Hyperlinks to external documents.
PHREEQCDirectCalc tab page
Unit Type: PHREEQCDirectCalc - The first tab page in the access window will have this name.
| Tag (Long/Short) | Input / Calc | Description/Calculated Variables / Options |
| Tag | Display | This name tag may be modified with the change tag option. |
| Condition | Display | OK if no errors/warnings, otherwise lists errors/warnings. |
| ConditionCount | Display | The current number of errors/warnings. If condition is OK, returns 0. |
| GeneralDescription / GenDesc | Display | This is an automatically generated description for the unit. If the user has entered text in the 'EqpDesc' field on the Info tab (see below), this will be displayed here. If this field is blank, then SysCAD will display the UnitType or SubClass. |
| This program contains PHREEQC Copyright U.S. Geological Survey (USGS) | ||
| StreamView |   |
If the Mass button is clicked, the total flow and PHREEQC species will be entered/displayed in mass flow view. If the Mole button is clicked, the total flow and PHREEQC species will be entered/displayed in mole flow view. |
| Required (Mass or Molar) Flow: | ||
| MassFlowReqd / QmReqd | Input | Visible with Mass StreamView. The mass flow required from the feeder. |
| MoleFlowReqd / QMlReqd | Input | Visible with Mole StreamView. The molar flow required from the feeder. |
| Temperature & Pressure Requirements: | ||
| Temperature / T | Input | The required temperature of the material from the feeder. |
| Pressure / P | Input | The required pressure of the the material from the feeder. |
| Chemistry Model | ||
| ChemModel... | ||
| UnitTag | List | The tag of the relevant PHREEQC Model Configuration unit model- this may be chosen from the drop down list of all PHREEQC Model Configuration unit models available in the project. |
| ModelCfgTagUsed/ModelCfgTag | Display | The tag of the relevant PHREEQC Model Configuration unit model. |
| Check |  |
If the user clicks on this button, SysCAD will check that the UnitTag is a valid PHREEQC Model Configuration unit model. |
| ConnOK | Tickbox | If SysCAD finds a valid PHREEQC Model Configuration unit model, then this field will be enabled. |
| Status | OK | The specified chemistry model (PHREEQC Model Configuration) has been initialised correctly and the database file has been found and loaded correctly. |
| ChemModel Tag not Specified | No tag has been specified for the Chemistry Model. Specify the desired Chemistry Model (PHREEQC Model Configuration) in the UnitTag field. | |
| Valid ChemModel Tag Required | The tag specified for the Chemistry Model in the UnitTag field is invalid and needs to be corrected. | |
| Init Required | The specified Chemistry Model (PHREEQC Model Configuration) needs to be initialised. | |
| ChemModel Load Required | The database of the specified Chemistry Model (PHREEQC Model Configuration) needs to be loaded. | |
| DLL or Version Error | There is a problem with the PHREEQC DLL or version. | |
| Init Failed | Initialisation of the specified Chemistry Model (PHREEQC Model Configuration) has been attempted but failed. | |
| ActionOnError | Continue | The model will continue solving if the PHREEQC calculation fails. |
| Pause | The model will pause solving if the PHREEQC calculation fails. | |
| Stop | The model will stop solving if the PHREEQC calculation fails. | |
| Requirements | ||
| Model | None (Off) | No calculations will be performed and input=output. |
| DirectCalc | The results from the PHREEQC calculation will be displayed. | |
| VLEModel | Display | Displays the VLE model used. |
| UseCFE | Tickbox | If this is ticked, then the CFE (Constrained Free Energy) tab page will appear.
|
| Select dependent variable and target value | ||
| OpMode... | ||
| OpMode | AtTandP | The calculation is performed at the user specified Temperature and Pressure (T and P are entered on the DInput tab page). |
| PhaseFormation | The target variable is the amount of a particular phase present in the final solution. | |
| SpeciesFormation | The target variable is the amount of a particular species present in the final solution. | |
| The following fields are only visible if OpMode = PhaseFormation | ||
| SelPhase... | ||
| Filter | Input | Filter by "contained" string. Allows user to optionally shorten the Phase Selection list (Phase) by entering in some letters from the desired phase. |
| Phase | List | The user can select one phase from the list of all phases in the PHREEQC database. The list will not show all phases if user has entered some letters in the Filter field above. |
| MoleBasis | Tickbox | Selecting this tickbox allows the user to specify the target mole flow. If this is not selected, then mass flow is used. |
| Phase.MassFlowReqd / Phase.QmReqd | Input | Only visible if MoleBasis = unticked. The user specified mass flow of the chosen phase that is to be formed. |
| Phase.MoleFlowReqd / Phase.QMlReqd | Input | Only visible if MoleBasis = ticked. The user specified moles of the chosen phase that is to be formed. |
| The following fields are only visible if OpMode = SpeciesFormation | ||
| PhaseFilter.... | ||
| Filter | Input | Filter by "contained" string. Allows user to optionally shorten the Phase Selection list (Phase) by entering in some letters from the desired phase. |
| Phase | List | The user can select one phase from the list of all phases in the PHREEQC database. The list will not show all phases if user has entered some letters in the Filter field above. |
| SpFilter.... | ||
| Filter | Input | Filter by "contained" string. Allows user to optionally shorten the Species Selection list (Species) by entering in some letters from the desired species. |
| Species | List | The user can select one species from the list of all species in the PHREEQC database. The list will be limited to those in the selected phase (Phase) and will not show all species if user has entered some letters in the Filter field above. |
| MoleBasis | Tickbox | Selecting this tickbox allows the user to specify the target mole flow. If this is not selected, then mass flow is used. |
| Sp.MassFlowReqd / Sp.QmReqd | Input | Only visible if MoleBasis = unticked. The user specified mass flow of the chosen phase/species that is to be formed. |
| Sp.MoleFlowReqd / Sp.QMlReqd | Input | Only visible if MoleBasis = ticked. The user specified moles of the chosen phase/species that is to be formed. |
| Select independent variable to adjust to achieve target (The following section is only displayed if OpMode ≠ AtTandP) | ||
| AdjustVar... | ||
| Method | AdjustT | The chosen independent variable is Temperature. |
| AdjustQMl | The chosen independent variable is flow of an individual species. | |
| AdjustDuty | Not available if OpMode = Enthalpy. The chosen independent variable is Duty. | |
| InitTemperature / InitT | Input | Only visible if Method = AdjustT. The initial guess to be used for the temperature of the final solution. |
| MaxTemperature / MaxT | Input | Only visible if Method = AdjustT. The maximum temperature of the final solution. |
| SelPhase... (only visible if Method = AdjustQMl) | ||
| Filter | Input | Only visible if Method = AdjustQMl. Allows user to optionally shorten the Phase Selection list (SelPhase) by entering in some letters from the desired phase. |
| PhaseFilter | List | Only visible if Method = AdjustQMl. The user can select one phase from the list of all phases in the PHREEQC database. The list will not show all phases if user has entered some letters in the Filter field above. |
| SelSp... (only visible if Method = AdjustQMl) | ||
| Filter | Input | Only visible if Method = AdjustQMl. Allows user to optionally shorten the Species Selection list (TargSpAdjust) by entering in some letters from the desired species. |
| TargSpAdjust | List | Only visible if Method = AdjustQMl. The user can select a single species to have limits imposed from the list of all species in the PHREEQC database. The list will be limited to those in the selected phase (PhaseFilter) and will not show all species if user has entered some letters in the Filter field above. |
| MoleBasis | Tickbox | Only visible if Method = AdjustQMl. If this box is ticked, user specifies the minimum and maximum mole flow of selected species. If this is not ticked, user can specify these flows in terms of mass flow. |
| MinSpMassFlow / QmMin | Input | Only visible if Method = AdjustQMl and MoleBasis is not ticked. The minimum mass flow of the selected species in the final solution. |
| MaxSpMassFlow / QmMax | Input | Only visible if Method = AdjustQMl and MoleBasis is not ticked. The maximum mass flow of the selected species in the final solution. |
| MinSpMoleFlow / QMlMin | Input | Only visible if Method = AdjustQMl and MoleBasis is ticked. The minimum mole flow of the selected species in the final solution. |
| MaxSpMoleFlow / QMlMax | Input | Only visible if Method = AdjustQMl and MoleBasis is ticked. The maximum mole flow of the selected species in the final solution. |
| MinDuty | Input | Only visible if Method = AdjustDuty. The minimum Duty (external energy added or removed from the model). |
| MaxDuty | Input | Only visible if Method = AdjustDuty. The maximum Duty (external energy added or removed from the model). |
| Target calculation details (only displayed if OpMode ≠ AtTandP) | ||
| TargCalc... | ||
| UseRelaxation | Tickbox | |
| RelaxationFactor | Input | The relaxationFactor, used when UseRelaxation is ticked. Values limits: 0.001 < RelaxationFactor < 5. |
| Settings |  |
If the user clicks on this button, the all the target solver settings will be reset to their default values. |
| SpMoleFlow / QMl | Display | Only shown if AdjustVar.Method = AdjustQMl. The actual mole flow used of the adjusted species. |
| SpMoleFlow / Qm | Display | Only shown if AdjustVar.Method = AdjustQMl. The actual mass flow used of the adjusted species. |
| Options | ||
| ShowRxnDiff | Tickbox | If this is ticked, then the Diff tab page will appear. This tab shows the mass movement of each species, positive value indicates the species has been created. |
| ShowScaling | Tickbox | Available from Build 139.34985. Allows the user to view the Scaling tab page. |
| PhaseElemDeportment | Tickbox | If this is ticked, then the PhDeport tab page will appear. This tab shows the mass movement of elements for the Solid, Liquid and Gas phases. |
| IPhaseElemDeportment | Tickbox | If this is ticked, then the IPhDeport tab page will appear. This shows how the elements move between phases due to the PHREEQC calculation results. |
| ShowPlotter | Tickbox | This option is only visible after a calculation has been successfully performed. If this is ticked, then the ParamSweep tab page will appear. |
| PHREEQCInput |  | When this button is pressed, user can select to copy the Feed or Product information to clipboard. |
| Calculate |  |
Click on this button to perform a calculation to determine the conditions of the final solution, including enthalpy, based on the specified operating conditions. |
| PasteData |  |
Click on this button to paste PHREEQC input data from the clipboard to the model. |
DInput tab page
This tab is used to define the Inputs for the PHREEQC calculation, including the composition in terms of PHREEQC species.
| Tag (Long/Short) | Input / Calc | Description/Calculated Variables / Options |
| Required Mass/Molar Flow: | ||
| MassFlowReqd / QmReqd | Input | Visible with Mass StreamView. The mass flow required from the feeder. |
| MoleFlowReqd / QMlReqd | Input | Visible with Mole StreamView. The molar flow required from the feeder. |
| Temperature & Pressure Requirements: | ||
| Temperature / T | Input | The required temperature of the user input mixture. |
| Pressure / P | Input | The required pressure of the user input mixture. |
| StreamView | |
If the Mass button is clicked, the PHREEQC species will be entered/displayed in mass flow view. If the Mole button is clicked, the PHREEQC species will be entered/displayed in mole flow view. |
| DFeed... | ||
| SpeciesName |   |
The Species:Long or Short button is used to change the display of the Species names between the Short form, the Chemical compound, or the longer species names. |
| NetCharge | Display | The NetCharge of the stream. |
| BalancingIon | List | The chosen ion to be adjusted to maintain electroneutrality (zero Net Charge). If left as default "-", then no ions will be used to maintain electroneutrality and Net Charge could be non-zero. |
| (The following tables allow the user to specify the composition of the Input by specifying the mass or mole of the individual PHREEQC species.) (Each table (one for each phase) has the following columns (one row for each species):) | ||
| MassFlow / Qm | Input | Visible when Mass StreamView is selected. The user specified mass flow of each PHREEQC species. |
| MassFrac / Mf | Display | Visible when Mass StreamView is selected. The mass fraction of the species in the total input. |
| PhaseMassFrac / IPh:Mf | Display | Visible when Mass StreamView is selected. The mass fraction of the species in the displayed phase. |
| MoleFlow / QMl | Input | Visible when Mole StreamView is selected. The user specified mole flow of each PHREEQC species. |
| MoleFrac / Mlf | Display | Visible when Mole StreamView is selected. The mole fraction of the species in the total input. |
| PhaseMoleFrac / IPh:Mlf | Display | Visible when Mole StreamView is selected. The mole fraction of the species in the displayed phase. |
CFE tab page
This tab is only visible if the UseCFE option is enabled on the TCE tab page.
- This option allows a portion of a species to be locked up and not allowed to react.
- Applying CFE can have a significant effect on the final composition, use of this feature requires detailed knowledge of the process chemistry.
- This feature is unavailable if using SysCAD VLE with PHREEQC.
| Tag (Long/Short) | Input / Calc | Description/Calculated Variables / Options |
| Constrained Free Energy (CFE) Configuration | ||
| CFE... | ||
| SpeciesName | |
The Species:Long or Short button is used to change the display of the Species names between the Short form, the Chemical compound, or the longer species names. |
| Filter View | ||
| Filter |   | This button will enable or disable the species filter options. |
| ShowUnmapped (Only visible if Filter is enabled) | Tickbox | When enabled, all species will be displayed. When disabled, only species that are mapped to a SysCAD species will be shown. |
| Phases (Only visible if Filter is enabled) |
All | No filtering of species based on phase. |
| Solids | Only show solid phase species, hide other species. | |
| Liquids | Only show liquid phase species, hide other species. | |
| Vapours | Only show vapour (gaseous) phase species, hide other species. | |
| Solids & Liquids | Only show solid and liquid phase species, hide other species. | |
| Solids & Vapours | Only show solid and vapour (gaseous) phase species, hide other species. | |
| Liquids & Vapours | Only show liquid and vapour (gaseous) phase species, hide other species. | |
| IPhase | Only show "IPhase" individual phase species, hide other species. The individual phases shown will depend on the PHREEQC database chosen. | |
| Filters | Display | Always set to 'Content'. |
| Content (Only visible if Filter is enabled) |
All | No filtering of species based on element or name. |
| Contains Any Element | This will display all species that contain any of the elements entered in their elemental definition. | |
| Contains All Elements | This will display only species that contain ALL of the elements entered in their elemental definition. | |
| Starts with ... | This will display species that start with the text entered based on the short or long species tag depending on the current SpeciesTag selection. | |
| Contains any ... | This will display species that contain the text entered in the currently displayed short or long species tag. | |
| Contains All ... | This will display species that contain ALL the separate text entered in the currently displayed short or long species tag. | |
| Select | Input | Only visible if Filter is enabled and Content is NOT set to All. The user specified Elements or text to filter the species list. Refer to Species Filter for more information and examples. |
| (The following tables (one per phase) display the PHREEQC species from the selected database. The user can set the Inert Fraction for each species. Note that liquid ions are not shown on this page as the Inert Fractions cannot be set for them.) (Each table has the following column (one row per PHREEQC species):) | ||
| InertFrac | Input | The user specified fraction of the species that is considered inert, i.e. cannot react to form other species/ions. The presence of the inert fraction is still taken into account when calculating stream properties. This is only available as an input for molecular species (not ions). |
PHREEQCResults tab page
| Tag (Long/Short) | Input / Calc | Description/Calculated Variables / Options |
| PHREEQC Calculation Results Summary | ||
| Feed Massflow Summary | ||
| PHREEQC.Feed.MassFlow / Qm | Display | The mass flow of material in the feed to the PHREEQC calculation. Same value as tag Feed.Qm. |
| Product Massflow Summary | ||
| PHREEQC.Prod.MassFlow / Qm | Display | The mass flow of material in the product of the PHREEQC calculation. Same value as tag Prod.Qm.
|
| Solids Yield | ||
| Solids.Yield | Display | The solids concentration in the product stream. |
| Solids.Precip | Display | The change in solids flow, feed-product. A positive value indicates precipitation has occurred. A negative value indicates dissolution has occurred. |
| Stream Properties Summary | ||
| Prod... | ||
| Temperature / T | Display | The Temperature of the final solution. |
| Pressure / P | Display | The Pressure of the final solution. |
| MassFlow / Qm | Display | The Mass flow of the final solution. |
| AqDensity / AqRho | Display | The density of aqueous species (solution) in the final solution. |
| Density / Rho | Display | The density of all species in the final mixture. |
| IonicStrength / I | Display | The molal Ionic Strength of the final solution, based on the molality (moles/mass of H2O) and charge of the individual ions. |
| pH | Display | The pH of the final solution. |
| Alkalinity | Display | The alkalinity of the final solution. |
| WaterActivity | Display | The water activity of the final solution. |
| TotalDissolvedSolids / TDS | Display | The mass concentration of Total Dissolved Solids (total aqueous-water) in the final solution. |
| OsmoticPressure / OsmP | Display | The Osmotic Pressure of the final solution. Please refer to Model Theory - Calculation of Osmotic Pressure for more information. |
| ORP | Display | Available from Build 139.33865. The oxidation reduction potential (ORP) of the final solution referenced to the standard hydrogen electrode (SHE). This is also known as [math]\displaystyle{ E_h }[/math]. |
| pKw | Display | The pKw of the final solution. |
| PHREEQCInput | | When this button is pressed, user can select to copy the Product information to clipboard. |
| Zeros |   |
If the Hide Zeros button is clicked, all phases/species that have NO mass flow will be hidden. If the Show Zeros button is clicked, all phases/species will be displayed, including those with zero mass flow. Note this setting applies to the subsequent pages as well. |
| Feed... | ||
| Feed Phase Flowrate Summary | ||
| (The following table displays a summary of results for the different phases. The table has the following columns (one row per phase)): | ||
| MassFlow / Qm | Display | The mass flow of the relevant phase in the feed. |
| MassFrac / Mf | Display | The mass fraction of the relevant phase in the feed. |
| MoleFlow / QMl | Display | The mole flow of the relevant phase in the feed. |
| MoleFrac / Mlf | Display | The mole fraction of the relevant phase in the feed. |
| Prod... | ||
| Prod Phase Flowrate Summary | ||
| (The following table displays a summary of results for the different phases. The table has the following columns (one row per phase)): | ||
| MassFlow / Qm | Display | The mass flow of the relevant phase in the final solution. |
| MassFrac / Mf | Display | The mass fraction of the relevant phase in the final solution. |
| MoleFlow / QMl | Display | The mole flow of the relevant phase in the final solution. |
| MoleFrac / Mlf | Display | The mole fraction of the relevant phase in the final solution. |
| Calculation Summary | ||
| Summary... | ||
| LastCalcType | Display | This displays the type of calculation (OpMode) used for the last calculation. |
| Remove |  |
If the user clicks on this button, SysCAD will remove duplicate error messages received. |
| ErrorCount | Display | The total number of errors encountered in the last calculation. |
| ErrorXX | Display | If there are error messages associated with the last calculation, they will be displayed here. |
| ConvergenceError | Display | The largest numerical convergence error. This is often zero when the solution converges with no errors. |
Input tab page
| Tag (Long/Short) | Input / Calc | Description/Calculated Variables / Options |
| Stream Properties Summary | ||
| Feed... | ||
| Temperature / T | Display | The Temperature of the feed solution. This is calculated using the SysCAD enthalpy context. |
| Pressure / P | Display | The Pressure of the feed solution. |
| MassFlow / Qm | Display | The Mass Flow of the feed solution. |
| PHREEQCInput | | When this button is pressed, user can select to copy the Feed information to clipboard. |
| Feed... | ||
| SpeciesName | |
The Species:Long or Short button is used to change the display of the Species names between the Short form, the Chemical compound, or the longer species names. |
| Zeros | |
If the Hide Zeros button is clicked, all species that have NO mass flow will be hidden. If the Show Zeros button is clicked, all species will be displayed, including those with zero mass flow. |
| StreamView | |
If the Mass button is clicked, the species will be shown in mass flow view. If the Mole button is clicked, the species will be shown in mole flow view. |
| Stream |
Mass | Copy stream contents to clipboard, mass basis, for pasting into Excel. If Zeros is set to hide, zero values will not be copied to the clipboard. |
| Mole | Copy stream contents to clipboard, mole basis, for pasting into Excel. If Zeros is set to hide, zero values will not be copied to the clipboard. | |
| Unmapped Mass | Copy unmapped stream contents to clipboard, mass basis, for pasting into Excel. If Zeros is set to hide, zero values will not be copied to the clipboard. Unmapped species are those which will not be mapped to the exiting SysCAD stream. | |
| Unmapped Mole | Copy unmapped stream contents to clipboard, mole basis, for pasting into Excel. If Zeros is set to hide, zero values will not be copied to the clipboard. Unmapped species are those which will not be mapped to the exiting SysCAD stream. | |
| Filter View | ||
| Filter | |
This button will enable or disable the species filter options. |
| ShowUnmapped (Only visible if Filter is enabled) |
Tickbox | When enabled, all species will be displayed. When disabled, only species that are mapped to a SysCAD species will be shown. |
| Phases (Only visible if Filter is enabled) |
All | No filtering of species based on phase. |
| Solids | Only show solid phase species, hide other species. | |
| Liquids | Only show liquid phase species, hide other species. | |
| Vapours | Only show vapour (gaseous) phase species, hide other species. | |
| Solids & Liquids | Only show solid and liquid phase species, hide other species. | |
| Solids & Vapours | Only show solid and vapour (gaseous) phase species, hide other species. | |
| Liquids & Vapours | Only show liquid and vapour (gaseous) phase species, hide other species. | |
| IPhase | Only show "IPhase" individual phase species, hide other species. The individual phases shown will depend on the {{{TPS}}} database chosen. | |
| Filters (Only visible if Filter is enabled) | Content | All species which meet the Phase and Content criteria will be displayed. |
| Content & MassFrac Limit | Only species which meet the Phase and Content criteria AND have a mass fraction greater than or equal to the user specified MassFrac.Limit will be displayed. | |
| Content & MassFrac Largest | Only the top N species (based on Mass Fraction) which meet the Phase and Content criteria will be displayed, where N = the user specified MassFrac.Count. | |
| Content & MassFrac Smallest | Only the bottom N species (based on Mass Fraction) which meet the Phase and Content criteria will be displayed, where N = the user specified MassFrac.Count. | |
| MassFrac Limit | Only species which meet the Phase criteria AND have a mass fraction greater than or equal to the user specified MassFrac.Limit will be displayed. | |
| MassFrac Largest | Only the top N species (based on Mass Fraction) which meet the Phase criteria will be displayed, where N = the user specified MassFrac.Count. | |
| MassFrac Smallest | Only the bottom N species (based on Mass Fraction) which meet the Phase criteria will be displayed, where N = the user specified MassFrac.Count. | |
| Content (Only visible when one of the Content Filter options is selected) |
All | No filtering of species based on element or name. |
| Contains Any Element | This will display all species that contain any of the elements entered in their elemental definition. | |
| Contains All Elements | This will display only species that contain ALL of the elements entered in their elemental definition. | |
| Starts with ... | This will display species that start with the text entered based on the short or long species tag depending on the current SpeciesTag selection. | |
| Contains any ... | This will display species that contain the text entered in the currently displayed short or long species tag. | |
| Contains All ... | This will display species that contain ALL the separate text entered in the currently displayed short or long species tag. | |
| Select | Input | Only visible if Content is NOT set to All. The user specified Elements or text to filter the species list. Refer to Species Filter for more information and examples. |
| MassFrac.Limit | Input | Only visible if Filters = Content & MassFrac Limit or MassFrac Limit. The user specified MassFrac Limit, the maximum mass fraction to be displayed. |
| MassFrac.Count | Input | Only visible if Filters = Content & MassFrac Largest, Content & MassFrac Smallest, MassFrac Largest or MassFrac Smallest. The user specified Mass Frac Count, the maximum number of species to be displayed. |
| (The following tables display the mass/mole flow, mass/mole fraction of the individual species.) (Each table (one for each phase) has the following columns (one row for each species). ) | ||
| MassFlow / Qm | Display | Visible when StreamView = Mass. The mass flow of the species in the feed stream. |
| MassFrac / Mf | Display | Visible when StreamView = Mass. The mass fraction of the species in the feed stream. |
| PhaseMassFrac / IPh:Mf | Display | Visible when StreamView = Mass. The mass fraction of the species in the displayed phase. |
| MoleFlow / QMl | Display | Visible when StreamView = Mole. The mole flow of the species in the feed stream. |
| MoleFrac / Mlf | Display | Visible when StreamView = Mole. The mole fraction of the species in the feed stream. |
| PhaseMoleFrac / IPh:Mlf | Display | Visible when StreamView = Mole. The mole fraction of the species in the displayed phase.
|
Output tab page
| Tag (Long/Short) | Input / Calc | Description/Calculated Variables / Options |
| Stream Properties Summary | ||
| Prod... | ||
| Temperature / T | Display | The Temperature of the product solution. This is calculated by SysCAD enthalpy context. |
| Pressure / P | Display | The Pressure of the product solution. |
| MassFlow / Qm | Display | The Mass Flow of the product solution. |
| AqDensity / AqRho | Display | The density of aqueous species (solution) in the final solution. |
| Density / Rho | Display | The density of all species in the final mixture. |
| IonicStrength / I | Display | The molal Ionic Strength of the final solution, based on the molality (moles/mass of H2O) and charge of the individual ions. |
| pH | Display | The pH of the final solution. |
| Alkalinity | Display | The alkalinity of the final solution. |
| WaterActivity | Display | The water activity of the final solution. |
| TotalDissolvedSolids / TDS | Display | The mass concentration of Total Dissolved Solids (total aqueous-water) in the final solution. |
| OsmoticPressure / OsmP | Display | The Osmotic Pressure of the final solution. Please refer to Model Theory - Calculation of Osmotic Pressure for more information. |
| ORP | Display | Available from Build 139.33865. The oxidation reduction potential (ORP) of the final solution referenced to the standard hydrogen electrode (SHE). This is also known as [math]\displaystyle{ E_h }[/math]. |
| pKw | Display | The pKw of the final solution. |
| PHREEQCInput | | When this button is pressed, user can select to copy the Output information to clipboard. |
| Copy Reverse Mapping Reactions to Clipboard | ||
| RevMap.IonRxns | | A table of Ion Rebuild Reactions (ions->species) and their extents will be copied to the clipboard. |
| Prod... | ||
| SpeciesName | |
The Species:Long or Short button is used to change the display of the Species names between the Short form, the Chemical compound, or the longer species names. |
| Zeros | |
If the Hide Zeros button is clicked, all species that have NO mass flow will be hidden. If the Show Zeros button is clicked, all species will be displayed, including those with zero mass flow. |
| StreamView | |
If the Mass button is clicked, the species will be shown in mass flow view. If the Mole button is clicked, the species will be shown in mole flow view. |
| Stream |
Mass | Copy stream contents to clipboard, mass basis, for pasting into Excel. If Zeros is set to hide, zero values will not be copied to the clipboard. |
| Mole | Copy stream contents to clipboard, mole basis, for pasting into Excel. If Zeros is set to hide, zero values will not be copied to the clipboard. | |
| Unmapped Mass | Copy unmapped stream contents to clipboard, mass basis, for pasting into Excel. If Zeros is set to hide, zero values will not be copied to the clipboard. Unmapped species are those which will not be mapped to the exiting SysCAD stream. | |
| Unmapped Mole | Copy unmapped stream contents to clipboard, mole basis, for pasting into Excel. If Zeros is set to hide, zero values will not be copied to the clipboard. Unmapped species are those which will not be mapped to the exiting SysCAD stream. | |
| Filter View | ||
| Filter | |
This button will enable or disable the species filter options. |
| ShowUnmapped (Only visible if Filter is enabled) |
Tickbox | When enabled, all species will be displayed. When disabled, only species that are mapped to a SysCAD species will be shown. |
| Phases (Only visible if Filter is enabled) |
All | No filtering of species based on phase. |
| Solids | Only show solid phase species, hide other species. | |
| Liquids | Only show liquid phase species, hide other species. | |
| Vapours | Only show vapour (gaseous) phase species, hide other species. | |
| Solids & Liquids | Only show solid and liquid phase species, hide other species. | |
| Solids & Vapours | Only show solid and vapour (gaseous) phase species, hide other species. | |
| Liquids & Vapours | Only show liquid and vapour (gaseous) phase species, hide other species. | |
| IPhase | Only show "IPhase" individual phase species, hide other species. The individual phases shown will depend on the {{{TPS}}} database chosen. | |
| Filters (Only visible if Filter is enabled) | Content | All species which meet the Phase and Content criteria will be displayed. |
| Content & MassFrac Limit | Only species which meet the Phase and Content criteria AND have a mass fraction greater than or equal to the user specified MassFrac.Limit will be displayed. | |
| Content & MassFrac Largest | Only the top N species (based on Mass Fraction) which meet the Phase and Content criteria will be displayed, where N = the user specified MassFrac.Count. | |
| Content & MassFrac Smallest | Only the bottom N species (based on Mass Fraction) which meet the Phase and Content criteria will be displayed, where N = the user specified MassFrac.Count. | |
| MassFrac Limit | Only species which meet the Phase criteria AND have a mass fraction greater than or equal to the user specified MassFrac.Limit will be displayed. | |
| MassFrac Largest | Only the top N species (based on Mass Fraction) which meet the Phase criteria will be displayed, where N = the user specified MassFrac.Count. | |
| MassFrac Smallest | Only the bottom N species (based on Mass Fraction) which meet the Phase criteria will be displayed, where N = the user specified MassFrac.Count. | |
| Content (Only visible when one of the Content Filter options is selected) |
All | No filtering of species based on element or name. |
| Contains Any Element | This will display all species that contain any of the elements entered in their elemental definition. | |
| Contains All Elements | This will display only species that contain ALL of the elements entered in their elemental definition. | |
| Starts with ... | This will display species that start with the text entered based on the short or long species tag depending on the current SpeciesTag selection. | |
| Contains any ... | This will display species that contain the text entered in the currently displayed short or long species tag. | |
| Contains All ... | This will display species that contain ALL the separate text entered in the currently displayed short or long species tag. | |
| Select | Input | Only visible if Content is NOT set to All. The user specified Elements or text to filter the species list. Refer to Species Filter for more information and examples. |
| MassFrac.Limit | Input | Only visible if Filters = Content & MassFrac Limit or MassFrac Limit. The user specified MassFrac Limit, the maximum mass fraction to be displayed. |
| MassFrac.Count | Input | Only visible if Filters = Content & MassFrac Largest, Content & MassFrac Smallest, MassFrac Largest or MassFrac Smallest. The user specified Mass Frac Count, the maximum number of species to be displayed. |
| (The following tables display the mass/mole flow, mass/mole fraction of the individual species.) (Each table (one for each phase) has the following columns (one row for each species). Totals for fractions/flows and maximum values for SatIdx are on the last row of each phase section.) | ||
| MassFlow / Qm | Display | Visible when StreamView = Mass. The mass flow of the species in the product stream. |
| MassFrac / Mf | Display | Visible when StreamView = Mass. The mass fraction of the species in the product stream. |
| PhaseMassFrac / IPh:Mf | Display | Visible when StreamView = Mass. The mass fraction of the species in the displayed phase. |
| MoleFlow / QMl | Display | Visible when StreamView = Mole. The mole flow of the species in the product stream. |
| MoleFrac / Mlf | Display | Visible when StreamView = Mole. The mole fraction of the species in the product stream. |
| PhaseMoleFrac / IPh:Mlf | Display | Visible when StreamView = Mole. The mole fraction of the species in the displayed phase. |
| ActivityCoeff | Display | Only shown for liquid/aqueous species. The activity coefficient of the species. |
| SatIdx | Display | Only shown for solid species. The saturation index of the species relative to its equilibrium solubility. |
| SatIdx.Eff | Display | Only shown for solid species. The saturation index of the species adjusted for user specified Saturation Index as defined in the PHREEQC Model Configuration. |
| Fugacity | Display | Only shown for gaseous species. The fugacity of the species. |
| Fugacity.Eff | Display | Only shown for gaseous species.
|
Diff tab page
This tab is only visible if ShowRxnDiff is ticked. The displayed results are the difference between input and output streams.
| Tag (Long/Short) | Input / Calc | Description/Calculated Variables / Options |
| Stream Properties Summary | ||
| Diff... | ||
| Temperature / T | Display | The Temperature difference between the feed and product solutions. |
| Pressure / P | Display | The Pressure difference between the feed and product solutions. |
| MassFlow / Qm | Display | The Mass Flow difference between the feed and product solutions. |
| Copy Reverse Mapping Reactions to Clipboard | ||
| RevMap.IonRxns | | A table of Ion Rebuild Reactions (ions->species) and their extents will be copied to the clipboard. |
| Diff... | ||
| SpeciesName | |
The Species:Long or Short button is used to change the display of the Species names between the Short form, the Chemical compound, or the longer species names. |
| Zeros | |
If the Hide Zeros button is clicked, all species that have NO mass flow will be hidden. If the Show Zeros button is clicked, all species will be displayed, including those with zero mass flow. |
| StreamView | |
If the Mass button is clicked, the species will be shown in mass flow view. If the Mole button is clicked, the species will be shown in mole flow view. |
| Stream |
Mass | Copy stream contents to clipboard, mass basis, for pasting into Excel. If Zeros is set to hide, zero values will not be copied to the clipboard. |
| Mole | Copy stream contents to clipboard, mole basis, for pasting into Excel. If Zeros is set to hide, zero values will not be copied to the clipboard. | |
| Unmapped Mass | Copy unmapped stream contents to clipboard, mass basis, for pasting into Excel. If Zeros is set to hide, zero values will not be copied to the clipboard. Unmapped species are those which will not be mapped to the exiting SysCAD stream. | |
| Unmapped Mole | Copy unmapped stream contents to clipboard, mole basis, for pasting into Excel. If Zeros is set to hide, zero values will not be copied to the clipboard. Unmapped species are those which will not be mapped to the exiting SysCAD stream. | |
| Filter View | ||
| Filter | |
This button will enable or disable the species filter options. |
| ShowUnmapped (Only visible if Filter is enabled) |
Tickbox | When enabled, all species will be displayed. When disabled, only species that are mapped to a SysCAD species will be shown. |
| Phases (Only visible if Filter is enabled) |
All | No filtering of species based on phase. |
| Solids | Only show solid phase species, hide other species. | |
| Liquids | Only show liquid phase species, hide other species. | |
| Vapours | Only show vapour (gaseous) phase species, hide other species. | |
| Solids & Liquids | Only show solid and liquid phase species, hide other species. | |
| Solids & Vapours | Only show solid and vapour (gaseous) phase species, hide other species. | |
| Liquids & Vapours | Only show liquid and vapour (gaseous) phase species, hide other species. | |
| IPhase | Only show "IPhase" individual phase species, hide other species. The individual phases shown will depend on the {{{TPS}}} database chosen. | |
| Filters (Only visible if Filter is enabled) | Content | All species which meet the Phase and Content criteria will be displayed. |
| Content & MassFrac Limit | Only species which meet the Phase and Content criteria AND have a mass fraction greater than or equal to the user specified MassFrac.Limit will be displayed. | |
| Content & MassFrac Largest | Only the top N species (based on Mass Fraction) which meet the Phase and Content criteria will be displayed, where N = the user specified MassFrac.Count. | |
| Content & MassFrac Smallest | Only the bottom N species (based on Mass Fraction) which meet the Phase and Content criteria will be displayed, where N = the user specified MassFrac.Count. | |
| MassFrac Limit | Only species which meet the Phase criteria AND have a mass fraction greater than or equal to the user specified MassFrac.Limit will be displayed. | |
| MassFrac Largest | Only the top N species (based on Mass Fraction) which meet the Phase criteria will be displayed, where N = the user specified MassFrac.Count. | |
| MassFrac Smallest | Only the bottom N species (based on Mass Fraction) which meet the Phase criteria will be displayed, where N = the user specified MassFrac.Count. | |
| Content (Only visible when one of the Content Filter options is selected) |
All | No filtering of species based on element or name. |
| Contains Any Element | This will display all species that contain any of the elements entered in their elemental definition. | |
| Contains All Elements | This will display only species that contain ALL of the elements entered in their elemental definition. | |
| Starts with ... | This will display species that start with the text entered based on the short or long species tag depending on the current SpeciesTag selection. | |
| Contains any ... | This will display species that contain the text entered in the currently displayed short or long species tag. | |
| Contains All ... | This will display species that contain ALL the separate text entered in the currently displayed short or long species tag. | |
| Select | Input | Only visible if Content is NOT set to All. The user specified Elements or text to filter the species list. Refer to Species Filter for more information and examples. |
| MassFrac.Limit | Input | Only visible if Filters = Content & MassFrac Limit or MassFrac Limit. The user specified MassFrac Limit, the maximum mass fraction to be displayed. |
| MassFrac.Count | Input | Only visible if Filters = Content & MassFrac Largest, Content & MassFrac Smallest, MassFrac Largest or MassFrac Smallest. The user specified Mass Frac Count, the maximum number of species to be displayed. |
| (The following tables display the mass/mole flow, mass/mole fraction of the individual species.) (Each table (one for each phase) has the following columns (one row for each species). ) | ||
| MassFlow / Qm | Display | Visible when StreamView = Mass. The difference in mass flow of the species. |
| MassFrac / Mf | Display | Visible when StreamView = Mass. The difference in mass fraction of the species. |
| PhaseMassFrac / IPh:Mf | Display | Visible when StreamView = Mass. The difference in mass fraction of the species in the displayed phase. |
| MoleFlow / QMl | Display | Visible when StreamView = Mole. The difference in mole flow of the species. |
| MoleFrac / Mlf | Display | Visible when StreamView = Mole. The difference in mole fraction of the species. |
| PhaseMoleFrac / IPh:Mlf | Display | Visible when StreamView = Mole. The difference in mole fraction of the species in the displayed phase.
|
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.
| Tag (Long/Short) | Input / Calc | Description/Calculated Variables / Options |
| Scaling ... | ||
| SpeciesName | |
The Species:Long or Short button is used to change the display of the Species names between the Short form, the Chemical compound, or the longer species names. |
| Zeros | |
If the Hide Zeros button is clicked, all species that have NO mass flow will be hidden. If the Show Zeros button is clicked, all species will be displayed, including those with zero mass flow. |
| Stream |  |
Copy list of solids species and their Saturation Index to the clipboard, for pasting into external programs such as Excel. |
| Filter View | ||
| Filter | |
This button will enable or disable the species filter options. |
| Phases (Only visible if Filter is enabled) |
Display | Always set to 'Solids'. |
| Filters (Only visible if Filter is enabled) |
Display | Always set to 'Content'. |
| Content (Only visible if Filter is enabled) |
All | No filtering of species based on element or name. |
| Contains Any Element | This will display all species that contain any of the elements entered in their elemental definition. | |
| Contains All Elements | This will display only species that contain ALL of the elements entered in their elemental definition. | |
| Starts with ... | This will display species that start with the text entered based on the short or long species tag depending on the current SpeciesTag selection. | |
| Contains any ... | This will display species that contain the text entered in the currently displayed short or long species tag. | |
| Contains All ... | This will display species that contain ALL the separate text entered in the currently displayed short or long species tag. | |
| Select | Input | Only visible if Content is NOT set to All. The user specified Elements or text to filter the species list. Refer to Species Filter for more information and examples. |
| (The following table displays the solid PHREEQC species from the selected database. The table has the following columns (one row per PHREEQC species.) | ||
| SatIdx | Display | The saturation index of the solid species relative to its equilibrium solubility. |
| SatIdx.Eff | Display | The saturation index of the solid species adjusted for user specified Saturation Index as defined in the PHREEQC Model Configuration. |
| Solid.MaxSI | Display | The maximum saturation index of any of the PHREEQC solid species. |
| Solid.MaxSI_Sp | Display | The PHREEQC solid species which has the maximum saturation index. |
| Solid.MaxSIEff | Display | The maximum effective saturation index of any of the PHREEQC solid species. |
| Solid.MaxSIEff_Sp | Display | The PHREEQC solid species which has the maximum effective saturation index. |
ElemBal tab page
This tab performs an element balance between the PHREEQC Input and Output streams.
| Tag (Long/Short) | Input / Calc | Description/Calculated Variables / Options |
| ElemBal... | ||
| Tol.SigDigits | Input | This provides an easy way to change the Tol.Rel value. For example, 4 here will set Tol.Rel = 1.00e-4. If user changes the Tol.Rel value, this value will also be updated. |
| Tol.Rel | Input | The relative tolerance for Element Balance (Input - Output). If the relative error is > Tol.Rel then an error is generated. The value of Tol.Rel shown/specified here is used in all PHREEQC unit models which reference the same PHREEQC Model Configuration unit model. |
| Tol.Abs | Input | The absolute tolerance for Element Balance (Input - Output). If the absolute error is > Tol.Abs then an error is generated. The value of Tol.Abs shown/specified here is used in all PHREEQC unit models which reference the same PHREEQC Model Configuration unit model. |
| PHREEQC... | ||
| ElementBalanceView | | If the Mass button is clicked, the elements will be shown in mass flow view. If the Mole button is clicked, the elements will be shown in mole flow view. |
| Zeros | | If the Hide Zeros button is clicked, all elements that have NO mass flow will be hidden. If the Show Zeros button is clicked, all elements will be displayed, including those with zero mass flow. |
| PHREEQC Element Balance | ||
| (The following table displays the mass/molar flows, and absolute and relative errors of the individual elements.) The table has the following columns (one row for each element): | ||
| FlowIn / Qm.In | Display | Visible when ElementBalanceView = Mass. The mass flow of the element in the PHREEQC Input stream. |
| FlowOut / Qm.Out | Display | Visible when ElementBalanceView = Mass. The mass flow of the element in the PHREEQC Output stream. The QRxnBypass stream is also included in this total. This can be viewed by clicking "ShowQRxnBypass". |
| AbsErr / Qm.Err | Display | Visible when ElementBalanceView = Mass. The difference in mass flow of the element between the PHREEQC Output and Input streams. |
| FlowIn / QMl.In | Display | Visible when ElementBalanceView = Mole. The molar flow of the element in the PHREEQC Input stream. |
| FlowOut / QMl.Out | Display | Visible when ElementBalanceView = Mole. The molar flow of the element in the PHREEQC Output stream. |
| AbsErr / QMl.Err | Display | Visible when ElementBalanceView = Mole. The difference in molar flow of the element between the PHREEQC Output and Input streams. |
| RelErr | Display | The relative difference in flow of the element between the PHREEQC Output and Input streams, relative to the Input stream. |
PhDeport tab page
This tab is only visible if PhaseElemDeportment is ticked. This tab shows the mass movement of elements for the Liquid, Solid and Gas phases.
| Tag (Long/Short) | Input / Calc | Description/Calculated Variables / Options |
| PD... | ||
| ElementBalanceView | | If the Mass button is clicked, the elements will be shown in mass flow view. If the Mole button is clicked, the elements will be shown in mole flow view. |
| Zeros | | If the Hide Zeros button is clicked, all elements that have NO mass flow will be hidden. If the Show Zeros button is clicked, all elements will be displayed, including those with zero mass flow. |
| PHREEQC.Liquid... | ||
| PHREEQC Deportment | ||
| (The following table displays the mass/molar flows, and absolute and relative changes of the individual elements.) The table has the following columns (one row for each element): | ||
| FlowIn / Qm.In | Display | Visible when ElementBalanceView = Mass. The mass flow of the element in the liquid phase of the Input stream. |
| FlowOut / Qm.Out | Display | Visible when ElementBalanceView = Mass. The mass flow of the element in the liquid phase of the Output stream. |
| Change / Qm.Chng | Display | Visible when ElementBalanceView = Mass. The change in mass flow of the element between the liquid phase of the Output and Input streams. |
| FlowIn / QMl.In | Display | Visible when ElementBalanceView = Mole. The molar flow of the element in the liquid phase of the Input stream. |
| FlowOut / QMl.Out | Display | Visible when ElementBalanceView = Mole. The molar flow of the element in the liquid phase of the Output stream. |
| Change / QMl.Chng | Display | Visible when ElementBalanceView = Mole. The difference in molar flow of the element between the liquid phase of the Output and Input streams. |
| RelChange | Display | The relative change in flow of the element between the liquid phase of the Output and Input streams, relative to the Input stream. |
| PHREEQC.Solid... | ||
| PHREEQC Deportment | ||
| (The following table displays the mass/molar flows, and absolute and relative changes of the individual elements.) The table has the following columns (one row for each element): | ||
| FlowIn / Qm.In | Display | Visible when ElementBalanceView = Mass. The mass flow of the element in the solid phase of the Input stream. |
| FlowOut / Qm.Out | Display | Visible when ElementBalanceView = Mass. The mass flow of the element in the solid phase of the Output stream. |
| Change / Qm.Chng | Display | Visible when ElementBalanceView = Mass. The change in mass flow of the element between the solid phase of the Output and Input streams. |
| FlowIn / QMl.In | Display | Visible when ElementBalanceView = Mole. The molar flow of the element in the solid phase of the Input stream. |
| FlowOut / QMl.Out | Display | Visible when ElementBalanceView = Mole. The molar flow of the element in the solid phase of the Output stream. |
| Change / QMl.Chng | Display | Visible when ElementBalanceView = Mole. The difference in molar flow of the element between the solid phase of the Output and Input streams. |
| RelChange | Display | The relative change in flow of the element between the solid phase of the Output and Input streams, relative to the Input stream. |
| PHREEQC.Gas... | ||
| PHREEQC Deportment | ||
| (The following table displays the mass/molar flows, and absolute and relative changes of the individual elements.) The table has the following columns (one row for each element): | ||
| FlowIn / Qm.In | Display | Visible when ElementBalanceView = Mass. The mass flow of the element in the gas phase of the Input stream. |
| FlowOut / Qm.Out | Display | Visible when ElementBalanceView = Mass. The mass flow of the element in the gas phase of the Output stream. |
| Change / Qm.Chng | Display | Visible when ElementBalanceView = Mass. The change in mass flow of the element between the gas phase of the Output and Input streams. |
| FlowIn / QMl.In | Display | Visible when ElementBalanceView = Mole. The molar flow of the element in the gas phase of the Input stream. |
| FlowOut / QMl.Out | Display | Visible when ElementBalanceView = Mole. The molar flow of the element in the gas phase of the Output stream. |
| Change / QMl.Chng | Display | Visible when ElementBalanceView = Mole. The difference in molar flow of the element between the gas phase of the Output and Input streams. |
| RelChange | Display | The relative change in flow of the element between the gas phase of the Output and Input streams, relative to the Input stream. |
IPhDeport tab page
This tab is only visible if IPhaseElemDeportment is ticked. This tab shows the mass movement of elements for each PHREEQC phase.
| Tag (Long/Short) | Input / Calc | Description/Calculated Variables / Options |
| IPD... | ||
| ElementBalanceView | | If the Mass button is clicked, the elements will be shown in mass flow view. If the Mole button is clicked, the elements will be shown in mole flow view. |
| Zeros | | If the Hide Zeros button is clicked, all elements that have NO mass flow will be hidden. If the Show Zeros button is clicked, all elements will be displayed, including those with zero mass flow. |
| PHREEQC.<PHREEQC PHASE>... | ||
| PHREEQC Deportment | ||
| (The following table displays the mass/molar flows, and absolute and relative changes of the individual elements.) The table has the following columns (one row for each element): | ||
| FlowIn / Qm.In | Display | Visible when ElementBalanceView = Mass. The mass flow of the element in the selected PHREEQC phase of the Input stream. |
| FlowOut / Qm.Out | Display | Visible when ElementBalanceView = Mass. The mass flow of the element in the selected PHREEQC phase of the Output stream. |
| Change / Qm.Chng | Display | Visible when ElementBalanceView = Mass. The change in mass flow of the element between the selected PHREEQC phase of the Output and Input streams. |
| FlowIn / QMl.In | Display | Visible when ElementBalanceView = Mole. The molar flow of the element in the selected PHREEQC phase of the Input stream. |
| FlowOut / QMl.Out | Display | Visible when ElementBalanceView = Mole. The molar flow of the element in the selected PHREEQC phase of the Output stream. |
| Change / QMl.Chng | Display | Visible when ElementBalanceView = Mole. The difference in molar flow of the element between the selected PHREEQC phase of the Output and Input streams. |
| RelChange | Display | The relative change in flow of the element between the selected PHREEQC phase of the Output and Input streams, relative to the Input stream. |
ParamSweep tab page
This tab is only visible if ShowPlotter is ticked and a calculation has been successfully performed (i.e. performed a calculation by pressing the Calculate button on the PHREEQCDirectCalc tab page with no errors).
This tab allows the user to perform multiple calculations to generate a set of data. The data can be copied and pasted into external programs such as Excel to allow the data to be plotted and analysed.
| Tag (Long/Short) | Input / Calc | Description/Calculated Variables / Options |
| Use tools on this page to generate tabular data on clipboard from parameter sweep | ||
| ParamSweep... | ||
| Method | AdjustT | The chosen independent variable is Temperature. |
| AdjustQMl | The chosen independent variable is flow of an individual species. | |
| MinTemperature / MinT | Input | Only visible if Method = AdjustT. The minimum temperature of the final solution in the data set. |
| MaxTemperature / MaxT | Input | Only visible if Method = AdjustT. The maximum temperature of the final solution in the data set. |
| SelPhase... (only visible if Method = AdjustQMl) | ||
| Filter | Input | Only visible if Method = AdjustQMl. Allows user to optionally shorten the Phase Selection list (SelPhase) by entering in some letters from the desired phase. |
| PhaseFilter | List | Only visible if Method = AdjustQMl. List of available phases to choose from. The list will not show all phases if user has entered some letters in the Filter field above. |
| SelSp... (only visible if Method = AdjustQMl) | ||
| Filter | Input | Only visible if Method = AdjustQMl. Allows user to optionally shorten the Species Selection list (TargetSpAdjust) by entering in some letters from the desired species. |
| TargSpAdjust | List | Only visible if Method = AdjustQMl. The user can select a single species from the list of all species in the PHREEQC database to have its flow varied. The list will be limited to those in the selected phase (SelPhase) and will not show all species if user has entered some letters in the Filter field above. |
| MoleBasis | Tickbox | Only visible if Method = AdjustQMl. If this box is ticked, user specifies the minimum and maximum mole flow of selected species. If this is not ticked, user can specify these flows in terms of mass flow. |
| MinSpMassFlow / QmMin | Input | Only visible if Method = AdjustQMl and MoleBasis is not ticked. The minimum mass flow of the selected species in the final solution. |
| MaxSpMassFlow / QmMax | Input | Only visible if Method = AdjustQMl and MoleBasis is not ticked. The maximum mass flow of the selected species in the final solution. |
| MinSpMoleFlow / QMlMin | Input | Only visible if Method = AdjustQMl and MoleBasis is ticked. The minimum mole flow of the selected species in the final solution. |
| MaxSpMoleFlow / QMlMax | Input | Only visible if Method = AdjustQMl and MoleBasis is ticked. The maximum mole flow of the selected species in the final solution. |
| Prod.T | Input | The required temperature of the product stream. |
| Prod.P | Input | The required pressure of the product stream. |
| StepSize | Input | The step size between each data point. If the user changes this value, then SysCAD will automatically adjust DataPoints (Below). (=(Max-Min)/(DataPoints-1)) |
| DataPoints | Input | The number of calculations to perform/rows of data to generate. If the user changes this value, then SysCAD will automatically adjust StepSize (Above). (=(Max-Min)/StepSize + 1) |
| IndVarRanges |  |
If the user clicks on this button, the inputs for the independent variable limits will be reset to their default values. (Applied to the temperature option only). |
| PlotDataCreate |  |
If the user clicks on this button, SysCAD will perform the requested calculations based on the chosen parameters, to generate the required data. |
| PlotDataTable |  |
If the user clicks on this button, SysCAD will perform the requested calculations based on the chosen parameters, to generate the required data. SysCAD will also copy the generated data to the clipboard, allowing it to be pasted into an external program such as MS Excel. |
| Select Dependent Variables for Output | ||
| SelectSpecies / SelectSp | Tickbox | Allows the user to select species to be reported. If this option is enabled, the SpForPlot tab will appear. |
| ShowActCoeff / ShowAC | Tickbox | Only visible if the SelectSp option is enabled. If this option is enabled, the activity coefficients of the species selected on the SpForPlot tab will be reported. |
| HideZeros | Tickbox | Only visible if the SelectSp option is enabled. If this option is enabled, the outputted table will be filtered so that only species which have a non-zero value in any of the calculations in the sweep will be shown in the table. |
| ResultsType | (only visible if the SelectSp option is enabled) | |
| Flow | The results generated will include the flows of the selected species in the final product stream. | |
| Frac | The results generated will include the overall fractions of the selected species in the final product stream. | |
| PhaseFrac | The results generated will include the phase fractions of the selected species in the final product stream. | |
| SelectedSpCount | Display | Only visible if the SelectSp option is available. The number of species selected on the SpForPlot tab. |
| Select Properties For Output | ||
| PropertiesCount / PropsCount | Input | The number of properties to be included in the reported data set. |
| PropX | List | The property to be reported from the list of available properties. Note: This field is only visible if the entry for NumPropsForOutput is greater then 0. If there is one property then X=1. If there are two properties, then X=1 and X=2, etc. |
SpForPlot tab page
This tab is only visible if the SelectSp option is enabled on the ParamSweep tab. It allows the user to select which species to be reported in the sets of data to be generated.
| Tag (Long/Short) | Input / Calc | Description/Calculated Variables / Options |
| SpForPlot... | ||
| SpeciesName | |
The Species:Long or Short button is used to change the display of the Species names between the Short form, the Chemical compound, or the longer species names. |
| SelectVisible |  | User can select all the species which are currently visible in the access window. The ones that are visible may be limited by use of the Filter (see options below). |
| UnselectVisible |  | User can unselect all the species which are currently visible in the access window. The ones that are visible may be limited by use of the Filter (see options below). |
| Filter View | ||
| Filter | | This button will enable or disable the species filter options. |
| ShowUnmapped (Only visible if Filter is enabled) | Tickbox | When enabled, all species will be displayed. When disabled, only species that are mapped to a SysCAD species will be shown. |
| Phases (Only visible if Filter is enabled) |
All | No filtering of species based on phase. |
| Solids | Only show solid phase species, hide other species. | |
| Liquids | Only show liquid phase species, hide other species. | |
| Vapours | Only show vapour (gaseous) phase species, hide other species. | |
| Solids & Liquids | Only show solid and liquid phase species, hide other species. | |
| Solids & Vapours | Only show solid and vapour (gaseous) phase species, hide other species. | |
| Liquids & Vapours | Only show liquid and vapour (gaseous) phase species, hide other species. | |
| IPhase | Only show "IPhase" individual phase species, hide other species. The individual phases shown will depend on the PHREEQC database chosen. | |
| Filters | Display | Always set to 'Content'. |
| Content (Only visible if Filter is enabled) |
All | No filtering of species based on element or name. |
| Contains Any Element | This will display all species that contain any of the elements entered in their elemental definition. | |
| Contains All Elements | This will display only species that contain ALL of the elements entered in their elemental definition. | |
| Starts with ... | This will display species that start with the text entered based on the short or long species tag depending on the current SpeciesTag selection. | |
| Contains any ... | This will display species that contain the text entered in the currently displayed short or long species tag. | |
| Contains All ... | This will display species that contain ALL the separate text entered in the currently displayed short or long species tag. | |
| Select | Input | Only visible if Filter is enabled and Content is NOT set to All. The user specified Elements or text to filter the species list. Refer to Species Filter for more information and examples. |
| (The following tables (one per phase) display the PHREEQC species from the selected database. The user can select any number of species.) (Each table has the following column (one row per PHREEQC species):) | ||
| Select | Tickbox | The properties (selected on the ParamSweep tab) of the selected species will be reported when the Generate function (ParamSweep tab) is used. |
| SetAll...(displayed at the end of each phase) | ||
| SelectAll |  | User can select all the species in the relevant phase. |
| UnselectAll |  | User can unselect all the species in the relevant phase. |
Adding this Model to a Project
Insert into Configuration file
Sort either by DLL or Group.
|
|
DLL: |
ScdPHREEQC.dll |
→ |
Units/Links |
→ |
TCE PHREEQC: PHREEQC DirectCalc |
|
or |
Group: |
General |
→ |
Units/Links |
→ |
TCE PHREEQC: PHREEQC DirectCalc |
See Model Selection for more information on adding models to the configuration file.
Insert into Project
|
|
Insert Unit |
→ |
TCE PHREEQC |
→ |
PHREEQC DirectCalc |
See Insert Unit for general information on inserting units.