Flowsheet

Array of materials to include in a stream.

Represents a material stream.

Fields

• ṁ::Float64: Material mass flow rate [kg/s].

• T::Float64: Stream temperature [K].

• P::Float64: Stream pressure [Pa].

• Y::Vector{Float64}: Components mass fractions [-].

• pipeline::StreamPipeline: Materials pipeline associated to Y.

Represents an energy stream.

Fields

• ḣ::Float64: Energy flow provided by stream [W].

Represents a pipeline with heat transfer.

Models

1. :TARGET_EXIT_TEMP evaluates the heat transfer lost to environment provided a target final stream temperature given by keyword argument temp_out. Product temperature is updated through an EnergyStream built with energy exchange computed through exchanged_heat, so that numerical value can be slightly different from target value.
2. :USING_GLOBAL_HTC makes use of a global heat transfer coefficient to evaluate heat flux across the pipe.

To-do

• Implement heat transfer losses through a convective heat transfer coefficient (HTC) computed from a suitable Nusselt number, for use of pipeline in simulation mode.

Fields

• product::MaterialStream: The output material stream at the end of pipeline.

• power::EnergyStream: The heat exchanged in pipeline [W].

Represents a solids separator with efficiency η.

To-do

• Add inverse model to automatically tune efficiency η.

Fields

• η::Float64: Solids separation efficiency [-].

• source::MaterialStream: The stream to be separated into solids and others.

• solids::MaterialStream: The output solids stream.

• others::MaterialStream: The output remaining stream.

Represents a crushing device with cooling system.

Models

1. :TARGET_COOLANT_TEMP evaluates the heat transfer lost to coolant provided a target final stream temperature given by keyword argument temp_out. Product temperature is updated through an EnergyStream built with energy exchange computed through exchanged_heat, so that numerical value can be slightly different from target value.
2. :USING_GLOBAL_HTC makes use of a global heat transfer coefficient to evaluate heat flux across the cooling stream.

Fields

• rawmeal::MaterialStream: The input meal applied to crushing process.

• product::MaterialStream: The output material stream at the end of product pipeline.

• coolant::MaterialStream: The output material stream at the end of cooling pipeline.

• power::EnergyStream: The power applied to the crushing process [W]

• loss::EnergyStream: The heat exchanged in between product and cooling pipelines [W].

• globalhtc::Union{Nothing, Float64}: Global heat transfer coefficient [W/K].

Manage use of TransportPipeline with different models.

Manage use of CooledCrushingMill with different models.

Enthalpy flow rate of given stream [W].

Heat exchanged with stream to match outlet temperature.