Mixer Unit Operation - Technical Information
The mixer unit combines two or more streams into a single product stream. Note that the mixer unit determines the product phases but cannot split them into different streams. If you desire to split the product stream into separate phases, substitute a flash unit for the mixer.
Calculation Method
The operation of a mixer is described by the outlet pressure condition (outlet pressure or pressure drop through the mixer). PRO/II performs an enthalpy balance to calculate the enthalpy of the product stream. An adiabatic flash is performed to determine the outlet temperature and product phases at the specified pressure condition.
The mixer unit supports both VLE (two phase) and VLLE (three phase) calculations to determine the individual phase compositions. See the VLE Model and the VLLE Model for more details.
Feed and Product Streams
The mixer unit can have multiple feed streams. The inlet thermal condition is determined by an adiabatic flash calculation at the lowest feed stream pressure.
There may be only one product stream leaving the mixer. The mixer determines the correct phases of this product stream.
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