Material Flow Section - Size

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Navigation: Models ➔ Common Sections ➔ Material Flow Section ➔ Size (Sz)

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, Size Distribution (PSD), Size Distribution Definition

Once a Size distribution has been created the Define size tab page (DSz) will be activated. This allows the user to define the Size Distribution(s) for the solids in the unit. For more information please see Size Distribution Definition.

DSz Tab Page

  • This tab is only visible if Size Distribution (PSD) has been configured in the Configuration file AND SzDist.Action has been set to 'Create' or 'Modify', either in a Feeder or in a Pipe on the Qi tab.
Tag (Long/Short) Input / Calc Description/Calculated Variables / Options
Inputs
Distribution Input / Display If more than one Size Distribution has been defined for the project, then the user may select the required Size distribution in this field.
If only a single Size Distribution is defined for the project, then this field displays the Size distribution.
Method Rosin-Rammler Mass fraction retained in each size interval is calculated using the Rosin-Rammler equation with two user-specified constants: a & b.
Modified Rosin-Rammler Mass fraction retained in each size interval is calculated using the Modified Rosin-Rammler equation with two user-specified constants: d50 and sharpness constant.
Gaudin-Schuhmann Mass fraction retained in each size interval is calculated using the Gaudin-Schuhmann equation with two user-specified constants: k & m.
Lynch Mass fraction retained in each size interval is calculated using the Lynch equation with two user-specified constants: d50 & m.
LinearInterpolate This method takes a user defined number of data points and interpolates to determine the size distribution across the full range of size intervals.
DataPoints: Interval Fraction With this method the user directly sets the mass fraction in each individual size interval.
SingleDefn Tick Box This is enabled when you are tracking size data independently for multiple solids species. When enabled the user can select this to set a single size distribution definition that applies to ALL solid species (rather then separate parameters for each solid).
The required inputs will depend on the Method chosen. The Size Distribution fields will either be display fields, or in the case of Data Entry they will be input fields. Please see Size Distribution Definition for the equations and description of these fields.
Display Options
View (Not visible
for Data Entry methods)		 Interval Fraction The table will display the calculated mass fraction in each interval fraction.
Cumulative Passing The table will display the cumulative mass passing through each sieve size. In this case the top size will always display 100%.
Cumulative Retained The table will display the cumulative mass retained on each sieve size. In this case the top size will always display 0%.
Intervals Sz Ascending button.png
Sz Descending button.png		 Clicking on this button will toggle between displaying the size intervals in Ascending or Descending order.
Size_Units List The user may select the display units, i.e. mm, um, etc., from a drop-down list.

Please see Size Distribution Definition for more information on the methods and constants used.

Sz Tab Page

  • This tab is only visible if Size Distribution (PSD) has been configured in the Configuration file AND Size Distribution (PSD) has been 'Created', either in a Feeder or in a Pipe on the Qi tab, upstream of the current unit.
Tag (Long/Short) Calc / Option Descriptions
Sz...
SpeciesX.Qm Calc Each species selected to contain size data will be listed here, showing the mass flow for that species.

NOTES:

  1. The mass flow of the "default solid" = "mass flow of the default solid" + "mass flow of all non-PSD solids"
  2. the default solid is assigned in the Size Configuration and shown in Plant Model - Qualities - DefaultSp
Zeros Hide Zeros.png
Show Zeros.png		 Toggles between show / hide zero. Only applies to the SpeciesX.Qm section above.
The size distribution table displays the parameters described below for each solid with a specified size distribution.
  1. If you have 2 (or more) solids, and each has been specified with a size distribution, then you can choose to see values for each of these ores.
  2. All non-PSD solids will follow the Default Solid.
  3. Use the View Column button on the bottom of the tab page to add / remove a variable from display.
  4. Not all variables listed below are available from the View Column button by default. The optional variables are selected from the Plant Model - Qualities tab.
Size Intervals TopSize / MidSize The size displayed will be the "topsize" or "midsize" of the size interval. SysCAD calculates the MidSize for each size interval using the Geometric Mean. See Sz Data Sections for more information.
FP: Fraction passing of the solids - this is the fraction of solids in a size interval.
FPCum: Cumulative Fraction passing of the solids, summing from the smallest size fraction to the largest.
Qm Mass flowrate of the solid within the size interval
QmCum Cumulative Mass flowrate of the solids, summing from the smallest size fraction to the largest.
SpN: Optional view. Number of Particles per unit mass of solids.
SpNCum: Optional view. Cumulative Number of Particles per unit mass of solids, summing from the smallest size fraction to the largest.
NFp: Optional view. Number of Particles for the size interval as a percentage of the total number of particles.
NFpCum: Optional view. Cumulative Number of Particles for the size interval as a percentage of the total number of particles, summing from the smallest size fraction to the largest.
Qn Optional view. Number of Particles per unit time within the size interval.
QnCum Optional view. Cumulative Number of Particles per unit time within the size interval, summing from the smallest size fraction to the largest.
Distribution Display List Shows the size distribution being used.
Global SzDist (PSD) View Options
Intervals Sz Ascending button.png
Sz Descending button.png		 Clicking on this button will toggle between displaying the size intervals in Ascending or Descending order.
Interval Display Sz Topsize button.png
Sz Midsize button.png		 Clicking on this button will toggle between displaying the size intervals as TopSize or MidSize.
CumulativeDisplay Sz OneTable button.png
Sz SeparateTable button.png		 Only visible if the project contains one PSD solid. In the Separate Table mode, the cumulative values are displayed as a separate table. The Separate Table mode will always be used when two or more PSD solids are used.
ViewColumns Sz ViewColumns button.png
with popup selection		 Clicking on this button will show a popup list containing all available variables for the size distribution table. Please note that if the project contains many PSD solids, then this list can become very long. To shorten the list, please only select the required display option from the Plant Model - Qualities tab.
View Options PlantModel.PSD clicking on the magnifying glass icon to the right of this will jump to the Plant Model - Qualities tab.

Please see Sz Data Sections for more information and explanation of the above fields.

MSz Tab Page

  • This tab is only visible if Size Distribution (PSD) has been configured in the Configuration file AND Size Distribution (PSD) has been 'Created', either in a Feeder or in a Pipe on the Qi tab, upstream of the current unit.
Tag (Long/Short) Calc Descriptions
Size Passes Fraction
P80: Calc Size passing fraction = 80%. Fraction set in the configuration file.
P50: Calc Size passing fraction = 50%. Fraction set in the configuration file.
Fraction Passing Size
m100: Calc Fraction passing 100 microns. The size interval definition is set in the configuration file.
m10000: Calc Fraction passing 10000 microns (10 mm). The size interval definition is set in the configuration file.
Fraction Retained Size
r1000: Calc Cumulative retained fraction at specified size of 1000 microns (1mm). The size interval definition is set in the configuration file.
Other
PPG: Calc Total Particle Count per Mass.
SAM: Calc Surface Area Mass basis (per Gram).
SAL: Calc Surface Area per Liter
APD Calc Average particle diameter based on Fraction Passing and Geometric mean size of each size interval
Mass Passing Size
Qm100 Calc Cumulative passing mass at specified size. The size interval definition is set in the configuration file.
Mass Retained Size
QmR100 Calc Cumulative retained mass at specified size. The size interval definition is set in the configuration file.
Spread and Range
QuartileSpread Calc Difference in sizes at two specified cumulative passing fractions: 75.0% - 25.0%. Range definition is set in the configuration file.
mRange10_1000 Calc Mass flow between two different size ranges: 0.010mm to 1.000mm. Range definition is set in the configuration file.
fRange1_10000 Calc Mass Fraction between two different size ranges: 0.001mm to 10.000mm. Range definition is set in the configuration file.

Please see MSz Data Sections for more information and explanation of the above fields.

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