Material Flow Section - SSA
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Navigation: Models ➔ Common Sections ➔ Material Flow Section ➔ Specific Surface Area (SSA)
| Material Flow (Qo) | Qxxxx Tab Include Properties | Species Flow | Optional Tabs | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Basic Information | Energy ValuesAtUserTandP | Density Correction Solubility Saturation | Acidity Charge Transport | HeatsOfCombustion Heating Values | Solution Impurity H2O Properties | Water Quality | Sp Tab EC Tab | DLockup LockUp | DTrack Track | DSz Sz MSz | DSSA SSA |
Related Links: Common Content Section, Specific Surface Area (SSA)
The Specific Surface Area (SSA) is mainly used in the Precipitation3 model, a continuous stirred tank reactor with Gibbsite crystallisation precipitation that is used in the Alumina industry. However the SSA quality can be used in general in any project (i.e. not necessarily Alumina only). For more information, please see Specific Surface Area (SSA)
DSSA
- This tab is only visible if SSA has been included in the Configuration file AND SSA has been 'Created', either in a Feeder or in a Pipe on the Qi tab, in the current unit.
| Tag (Long/Short) | Input / Calc | Description/Calculated Variables / Options |
| SSA Quality | ||
| Method | Display | Independent - when no PSD present and calculated from SAM; or FromPSD - when calculated from full PSD. |
| SetData | Tickbox | Allows the user to set values for SAM or Diameter (D). This is set by selecting Create for SzSSA.Action  .
|
| SetDiam | Tickbox | Option when SetData is in use. Allows user to define SAM or D. |
| Solids | List | Solids Species that SSA calculations are based on. Result field if SSA solid component is set globally in PlantModel. Otherwise, allows the user to select the solid component to base the SSA calculations on. Note: The selected solid flowrate must be non-zero for the propagation of the following parameters to downstream unit operations. |
| Solids.Qm | Calc | The amount of selected SSA solids species (e.g.: Al[OH]3) present. |
| SeedSurfaceAreaM / SAM | Input | Seed Surface Area, Mass basis (m²/g) |
| SeedSurfaceAreaL / SAL | Calc | Seed Surface Area, Volume basis (m²/L). That is total Liquid Volume basis at temperature. |
| #/s | Calc | Particle number per second. |
| #/L | Calc | Particle number per litre. |
| D / PartDiam | Input | Input when SetData is in use and SetDiam is selected. Particle diameter. |
Please see DSSA Data Sections for more information.
SSA
- This tab is only visible if SSA has been included in the Configuration file AND SSA has been 'Created', either in a Feeder or in a Pipe on the Qi tab, upstream of the current unit.
| Tag (Long/Short) | Input / Calc | Description/Calculated Variables / Options |
| SSA Quality | ||
| Method | Display | Independent - when no PSD present and calculated from SAM; or FromPSD - when calculated from full PSD. |
| SetData | Display | SSA data can only be set on the DSSA tab. Only visible when method = Independent. |
| Solids | Display List | Solids Species that SSA calculations are based on. |
| Solids.Qm / SolidsQm | Calc | The amount of selected SSA solids species (e.g.: Al[OH]3) present. |
| SeedSurfaceAreaM / SAM | Calc | Seed Surface Area, Mass basis (m²/g) |
| SeedSurfaceAreaL / SAL | Calc | Seed Surface Area, Volume basis (m²/L). That is total Liquid Volume basis at temperature. |
| #/s | Calc | Particle number per second. |
| #/L | Calc | Particle number per litre. |
| D / PartDiam | Calc | Particle diameter. |
Please see SSA Data Sections for more information.