View source for ETip: Controlling phase fraction using Makeup Blocks

[[Category:FAQ]]
{{Navigation|[[User Guide]]|[[Frequently Asked Questions]]|[[Tips and Tricks|Tips & Tricks]]|altname=Controlling Phase Fraction using Makeup Blocks}}

'''Related Links:''' [[Makeup_Block_(MU)|Makeup Block (MU)]], [[Makeup_Source|Makeup Source]], [[Makeup_Block_(MU)#Adding_Makeup_to_a_Unit|Adding Makeup to a Unit]]
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==Introduction==
An effective method of controlling the solids composition of a stream is to add water by using a [[Makeup_Block_(MU)|'Makeup Block']].

==Why==

Often the requirement for a particular process, such as a milling circuit, is to set the percentage solids in the feed to that process. One way of doing this in SysCAD is to introduce a 'Tank' or 'Tie' before the circuit and then use a water [[Makeup_Block_(MU)|Makeup Block]] to control the solids composition.

==How==

* Add a water [[Makeup_Source|Makeup Source]] to the flowsheet.
* In a particular unit, add the number of makeups required, refer to [[Makeup_Block_(MU)#Adding_Makeup_to_a_Unit|'Adding Makeup to a Unit']].
* Set up the 'Makeup Block' to add from the water [[Makeup_Source|Makeup Source]].
* Set the model to 'Product Composition'.
* Select product 'Selection' to 'Phase'.
* Tick 'Solids'.
* Set the required product solids mass fraction.

==Did you know==

* The Makeup Block (MU) can be added to a number of unit models, such as a Tank, Tie, Feeder-Cross Page Connector, Thickener, Pipe, Flash Tank 2, General Separator etc.
* Makeup additions can be controlled using several different methods including, fixed flow rate, ratio, product flow, product composition, product temperature and temperature change.

==Example==

The pictures below show an example of using a water makeup source to set the solids composition to 70% in the feed to a milling circuit. Refer to the section 'How' above for more detail.

[[Image:Controlling phase fraction using Makeup Blocks.png]]