Energy Mixer

DWSIM Plus

Available with a DWSIM Plus (Patreon) subscription.

Energy mixer: sums the energy flows of up to six inlet energy streams into one outlet energy stream. It has no configurable parameters.

DWSIM.UnitOperations.ExtensionPack.UnitOperations.EnergyMixer
Assembly DWSIM.UnitOperations.ExtensionPack.dll · Object ← BaseClass ← UnitOpBaseClass ← EnergyMixer

At a glance

Port	Index	Connected in the example
Inlet, energy	0	C-1 duty
Inlet, energy	1	C-2 duty
Inlet, energy	2
Inlet, energy	3
Inlet, energy	4
Inlet, energy	5
Outlet, energy	0	Total duty

Example

This code runs on every build of this site, and the output below is what it printed.

Python

fs = (Flowsheet.Create("EnergyMixerExample")
      .WithCompound("Water")
      .WithPropertyPackage(PropertyPackages.SteamTables))

hot1 = fs.AddMaterialStream("Water-1").At(Q.Celsius(80.0), Q.Bar(2.0)).WithMassFlow(Q.KgPerSecond(3.0))
hot2 = fs.AddMaterialStream("Water-2").At(Q.Celsius(60.0), Q.Bar(2.0)).WithMassFlow(Q.KgPerSecond(5.0))
cold1 = fs.AddMaterialStream("Water-1-out")
cold2 = fs.AddMaterialStream("Water-2-out")
q1 = fs.AddEnergyStream("C-1 duty")
q2 = fs.AddEnergyStream("C-2 duty")
total = fs.AddEnergyStream("Total duty")

(fs.AddCooler("C-1").WithOutletTemperature(Q.Celsius(35.0))
   .ConnectFeed(hot1).ConnectProduct(cold1).ConnectEnergyProduct(q1, 0))
(fs.AddCooler("C-2").WithOutletTemperature(Q.Celsius(35.0))
   .ConnectFeed(hot2).ConnectProduct(cold2).ConnectEnergyProduct(q2, 0))

# Up to six energy streams in, one out: the outlet carries the sum.
mixer = (fs.AddEnergyMixer("EM-1")
         .ConnectEnergyFeed(q1, 0)
         .ConnectEnergyFeed(q2, 1)
         .ConnectEnergyProduct(total, 0))

fs.AutoLayout()
fs.Solve()

print(f"C-1 duty   = {q1.EnergyFlowKW:.1f} kW")
print(f"C-2 duty   = {q2.EnergyFlowKW:.1f} kW")
print(f"Total duty = {total.EnergyFlowKW:.1f} kW")

Output

C-1 duty   = 564.8 kW
C-2 duty   = 522.4 kW
Total duty = 1087.2 kW

DWSIM 10.2.11.0, generated 2026-10-08.

Learn more

• User guide

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  • Energy Mixer

• FluentAPI

  ---

  • Plus.EnergyMixerBuilder

API members

Public members declared by this class. Inherited members are documented on the base classes.

Constructors

EnergyMixer(): Initializes a new default instance of the EnergyMixer class.

Initializes a new default instance of the EnergyMixer class.

C#VB.NET

public EnergyMixer()

Public Sub New()

EnergyMixer(string, string): Initializes a new instance of the EnergyMixer class with a name and description.

Initializes a new instance of the EnergyMixer class with a name and description.

Parameter	Type	Description
Name	String	The name of this unit operation.
Description	String	A brief description of this unit operation.

C#VB.NET

public EnergyMixer(string Name, string Description)

Public Sub New(Name As String, Description As String)

Properties

ComponentDescription: Gets or sets the CAPE-OPEN component description for this unit operation.

Gets or sets the CAPE-OPEN component description for this unit operation.

C#VB.NET

public override string ComponentDescription { get; set; }

Public Overrides Property ComponentDescription As String

ComponentName: Gets or sets the CAPE-OPEN component name for this unit operation.

Gets or sets the CAPE-OPEN component name for this unit operation.

C#VB.NET

public override string ComponentName { get; set; }

Public Overrides Property ComponentName As String

IsPremium: Gets a value indicating whether this unit operation is a premium (DWSIM Patreon) unit operation.

Gets a value indicating whether this unit operation is a premium (DWSIM Patreon) unit operation. Always True; the object palette lists it under the Premium category.

C#VB.NET

public bool IsPremium { get; }

Public ReadOnly Property IsPremium As Boolean

MobileCompatible: Gets a value indicating whether this unit operation is compatible with mobile interfaces.

Gets a value indicating whether this unit operation is compatible with mobile interfaces. Always False.

C#VB.NET

public override bool MobileCompatible { get; }

Public Overrides ReadOnly Property MobileCompatible As Boolean

ObjectClass: Gets or sets the simulation object class category (MixersSplitters).

Gets or sets the simulation object class category (MixersSplitters).

C#VB.NET

public override SimulationObjectClass ObjectClass { get; set; }

Public Overrides Property ObjectClass As SimulationObjectClass

Methods

Calculate(object): Calculates the object.

Calculates the object.

Parameter	Type	Description
args	Object

C#VB.NET

public override void Calculate(object args = null)

Public Overrides Sub Calculate(args As Object = Nothing)

CloneXML(): Creates a deep copy of this object by round-tripping through XML serialization.

Creates a deep copy of this object by round-tripping through XML serialization.

C#VB.NET

public override object CloneXML()

Public Overrides Function CloneXML() As Object

CloseEditForm(): Closes the editor of this object, if it is open.

Closes the editor of this object, if it is open.

C#VB.NET

public override void CloseEditForm()

Public Overrides Sub CloseEditForm()

DeCalculate(): Decalculates the object.

Decalculates the object.

C#VB.NET

public override void DeCalculate()

Public Overrides Sub DeCalculate()

DisplayEditForm(): Opens the editor of this object.

Opens the editor of this object. A host that has no editor for it does nothing.

C#VB.NET

public override void DisplayEditForm()

Public Overrides Sub DisplayEditForm()

GetDisplayDescription(): Returns the description string for this unit operation type.

Returns the description string for this unit operation type.

C#VB.NET

public override string GetDisplayDescription()

Public Overrides Function GetDisplayDescription() As String

GetDisplayName(): Returns the display name for this unit operation type.

Returns the display name for this unit operation type.

C#VB.NET

public override string GetDisplayName()

Public Overrides Function GetDisplayName() As String

GetEditingForm(): The editor window of this object, a window of the host's UI framework.

The editor window of this object, a window of the host's UI framework.

C#VB.NET

public override object GetEditingForm()

Public Overrides Function GetEditingForm() As Object

GetIconBitmapBytes(): Returns the raw bytes of the icon image for this unit operation.

Returns the raw bytes of the icon image for this unit operation.

C#VB.NET

public override byte[] GetIconBitmapBytes()

Public Overrides Function GetIconBitmapBytes() As Byte()

LoadData(List<XElement>): Restores the unit operation state from a list of XML elements previously produced by SaveData.

Restores the unit operation state from a list of XML elements previously produced by SaveData.

Parameter	Type	Description
data	List<XElement>	The list of XElement objects containing serialized state.

C#VB.NET

public override bool LoadData(List<XElement> data)

Public Overrides Function LoadData(data As List(Of XElement)) As Boolean

SaveData(): Serializes the unit operation state to a list of XML elements for persistence.

Serializes the unit operation state to a list of XML elements for persistence.

C#VB.NET

public override List<XElement> SaveData()

Public Overrides Function SaveData() As List(Of XElement)

UpdateEditForm(): Redraws the editor of this object with the current values, if it is open.

Redraws the editor of this object with the current values, if it is open.

C#VB.NET

public override void UpdateEditForm()

Public Overrides Sub UpdateEditForm()

Fields

f: The classic (WinForms) editor window open for this unit operation, if any.

The classic (WinForms) editor window open for this unit operation, if any. Not saved with the flowsheet.

C#VB.NET

public EditingForm_Emixer f

Public f As EditingForm_Emixer