View source for General Separator

[[Category:Models]]
{{Navigation|[[Models]]|[[Models#Mass Separation Models|Mass Separation Models]]}}
{{SL Separator header table|currentpage=1}}
'''Related Links:''' [[Solid-Liquid Separator]], [[Screen 2#Model Theory|Solids PSD Method - Model Theory]]

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{{TOC}}
== Introduction ==

This model can be used as a general separator, especially for separating solids and liquids using the [[Solid-Liquid Separator]] sub-model. In addition, a number of sub-models are available which makes this model very flexible so that it can be used to model many types of separation units.

== Diagram ==

[[Image:Models-Gen Separator-image001.gif]]

The diagram shows the default drawing of the General Separator, with all of the streams that have to be connected for the unit to operate. 

The physical location of the streams connecting to the General Separator is unimportant. The user may connect the streams to any position on the unit.

== Inputs and Outputs ==
 

{| border="1" cellpadding="5" cellspacing="0"  
|- 
| valign="top" rowspan="2" | '''Label''' || valign="top" rowspan="2" | '''Required<br>Optional''' || valign="top" rowspan="2" | '''Input<br>Output ''' ||  colspan="2"   | '''Number of Connections''' || valign="top" rowspan="2" | '''Description'''
|- 
|  '''Min''' || '''Max''' 
|-
| Feed     || 1 Required || In  || 1 || 20 || The feed to the separator
|-
| Underflow || 1 Required || Out || 1 || 1 || The separator underflow.
|-
| Overflow || Optional || Out || 0 || 1 || The separator overflow.  If this is NOT connected, all material flows out through the Underflow.
|-
| Vent || Optional || Out || 0 || 1 || Vent Stream (Vapour only)
|}

== Behaviour when Model is OFF ==

If the user disables the unit, by un-ticking the ''On'' tick box, then the following actions occur:
* The field ''MassFracToUF'' becomes visible and the user may set the fraction of the feed stream that reports to the 'Underflow' outlet.  The default is 100%.
* All streams connected to the unit will flow out of the 'Underflow' outlet, unless the user has changed the above field from 100%.  In which case the user defined fraction of the Feed will report to the Overflow stream;
* No sub-models will occur.

So basically, the unit will be 'bypassed' without the user having to change any connections.

== Model Theory ==
The following model theory is for the solid - liquid separator sub model used by the general separator.

{{Separ Model Theory}}

== Data Sections ==

=== Summary of Data Sections ===

# '''[[#General Separator Page|GeneralSeparator]]''' tab - Contains general information relating to the unit.
# '''[[Solid-Liquid Separator|Separ]]''' - Contains configuration and results of separating material to the underflow and overflow outlets.
# '''[[Phase Change (PC)|PC]]''' - Optional tab that is visible if EB.Solubility.On and/or EB.PhaseChange@T.On is enabled in the Evaluation Block.
# '''[[RB]]''' - Optional tab, only visible if the Reactions are enabled in the Evaluation Block.
# '''[[EHX]]''' - Optional tab, only visible if the EnvironHX is enabled in the Evaluation Block.
# '''[[Evap]]''' - Optional tab that is visible if Evaporator is enabled in the Evaluation Block.
# '''[[VLE]]''' - Optional tab, only visible if the VLEquilibrium is enabled in the Evaluation Block.
# '''[[MU]]''' - Optional tab, or multiple tabs if more than 1 Makeup is selected.  Only visible if one of more Makeups are enabled in the Evaluation Block.
# '''[[DB]]''' - Optional tab, or multiple tabs if more than 1 Discard Block is selected.  Only visible if one of more Discard Blocks are enabled in the Evaluation Block. Only available in Build 138 or later.
# '''[[Material Flow Section|QFeed]]''' - Optional tab, only visible if ''ShowQFeed'' is enabled. This page shows the properties of the mixed stream as the feed to the separator. 
#* This is before any Evaluation Block models are evaluated.
#{{ShowQout|UF|Underflow}}
#{{ShowQout|OF|Overflow}}
# '''[[Common Data Sections#Common Data on Info Tab Page|Info]]''' tab - Contains general settings for the unit and allows the user to include documentation about the unit and create Hyperlinks to external documents.
# '''[[Links Table|Links]]''' tab, contains a summary table for all the input and output streams. 
# '''[[Audit]]''' tab - Contains summary information required for Mass and Energy balance. See [[Model Examples]] for enthalpy calculation Examples.
# Additional fields are shown in Dynamic mode. These are described in the [[Tank - Dynamic Mode]].

===General Separator Page===
'''Unit Type: GeneralSeparator''' - The first tab page in the access window will have this name.

{| border="1" cellpadding="5" cellspacing="0" 
|-
! Tag (Long/Short) || Input/ Calc || Description'''
|-
{{Common Data on First Tab Page}}
|-
|  colspan="3" font style="background: #ebebeb"    |'''Requirements'''
|-
|On ||Tick Box  ||This allows the user to enable or disable the unit. If the unit is disabled, no sub-models or separation will occur.
|-
| MassFracToUF_WhenOff / MassFracToUF || Input || This field is only visible if the ''On'' tickbox is NOT ticked.  This field allows the user to specify the fraction of the incoming streams that will flow to the underflow when the unit is disabled.
{{OperatingP}}
|-
|  colspan="3" font style="background: #ebebeb"    |'''EB (Evaluation Block)'''
{{EB Evaluation Data Section | Makeups = Yes | Reactions = Yes | EnvironHX = Yes | Evaporation = Yes | VLE = Yes | Discard = Yes}}
|-
|  colspan="3" font style="background: #ebebeb"    |'''Residence Time'''
{{Residence Time Data Section}} 
|-
|  colspan="3" font style="background: #ebebeb"    |'''''Options'''''
|-
| ShowQFeed || Tick Box || QFeed and associated tab pages (e.g. Qm) will become visible, showing the properties of the combined feed stream. See [[Material Flow Section]]. This will be prior to any sub-model (e.g. reactions) actions.
{{ShowQout DataSection|UF|Underflow}}
{{ShowQout DataSection|OF|Overflow}}
|}

=== Separ Tab Page ===

{{Separ Table}}

== Adding this Model to a Project ==

{{Adding Model to a Project | DllName=Separation | DllSubGroup=Separation | UnitOp=General Separator | Group=Mass Separation}}

== Example Project ==
*[[Example 90 Water#Desalination Example|Desalination Example]]
*[[Example 90 Water#Water Treatment Example|Water Treatment Example]]