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 (ie 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 Qualities2.png.
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 (eg: 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 (eg: 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.