Expander Class

Represents an expander (turbine) unit operation that reduces the pressure of a gas or vapor stream through isentropic or polytropic expansion, generating shaft work.

Definition

Namespace: DWSIM.UnitOperations.UnitOperations
Assembly: DWSIM.UnitOperations (in DWSIM.UnitOperations.dll) Version: 10.0.0.0

C#Request Example

[SerializableAttribute]
public class Expander : UnitOpBaseClass

VBRequest Example

<SerializableAttribute>
Public Class Expander
	Inherits UnitOpBaseClass

Inheritance: Object BaseClass UnitOpBaseClass Expander

Remarks

The expander supports multiple calculation modes including outlet pressure, pressure drop, power generated, head, performance curves, and pressure ratio. Both adiabatic (isentropic) and polytropic thermodynamic paths are supported.

Constructors

Expander	Initializes a new instance of the Expander class with default settings.
Expander(String, String)	Initializes a new instance of the Expander class with a specified name and description.

Properties

AdiabaticCoefficient	Gets or sets the isentropic (adiabatic) volume exponent coefficient, calculated from inlet and outlet conditions.
AdiabaticEfficiency	Gets or sets the adiabatic (isentropic) efficiency of the expander (%).
AdiabaticHead	Gets or sets the adiabatic head of the expander (m).
AdjustVarType	If an Adjust object is attached to this object, returns a variable describing how this object is used by it (manipulated, controlled or reference). (Inherited from BaseClass)
Annotation	(Inherited from BaseClass)
AttachedAdjustId	If an Adjust object is attached to this object, returns its ID. (Inherited from BaseClass)
AttachedInfoCarrierId	(Inherited from BaseClass)
AttachedSpecId	If an Specification object is attached to this object, returns its ID. (Inherited from BaseClass)
AttachedUtilities	(Inherited from BaseClass)
Bottom	(Inherited from BaseClass)
CalcMode	Gets or sets the active calculation mode for the expander.
Calculated	(Inherited from BaseClass)
CanUsePreviousResults	(Inherited from BaseClass)
ComponentDescription	Gets or sets the CAPE-OPEN component description for this unit operation. (Inherited from UnitOpBaseClass)
ComponentName	Gets or sets the CAPE-OPEN component name for this unit operation. (Inherited from UnitOpBaseClass)
CreateChartAction	(Inherited from BaseClass)
CurveEff	Gets or sets the efficiency value interpolated from the performance curves at the current flow (%).
CurveFlow	Gets or sets the volumetric or molar flow value read from the performance curves at the operating point.
CurveHead	Gets or sets the head value interpolated from the performance curves at the current flow (m).
CurvePower	Gets or sets the power value interpolated from the performance curves at the current flow (kW).
Curves	Gets or sets the collection of performance curve sets, keyed by rotation speed (rpm).
CurvesDB	Gets or sets the serialized performance curves database string.
DebugMode	(Inherited from BaseClass)
DebugText	(Inherited from BaseClass)
DeltaP	Gets or sets the pressure drop across the expander (Pa).
DeltaQ	Gets or sets the shaft power generated by the expander (kW). Positive values represent generated power.
DeltaT	Gets or sets the temperature change of the stream across the expander (K).
DetailedDebugReport	(Inherited from BaseClass)
Dimensions	Gets or sets the list of physical dimensions (e.g. vessel diameter, length) associated with this unit operation. (Inherited from UnitOpBaseClass)
DynamicsOnly	(Inherited from BaseClass)
DynamicsSpec	(Inherited from BaseClass)
EnergyFlow	Energy Flow property. Only implemented for Energy Streams. (Inherited from BaseClass)
EquipmentTypes	Gets the list of equipment sub-types available for this expander (e.g., Steam, Gas). (Overrides UnitOpBaseClassEquipmentTypes)
EquipType	Gets or sets the equipment type identifier used for selecting performance curve data sets.
ErrorMessage	Gets or sets the error message regarding the last calculation attempt. (Inherited from BaseClass)
ExternalSolverConfigData	Gets or sets serialized configuration data for the external solver associated with this unit operation. (Inherited from UnitOpBaseClass)
ExternalSolverID	Gets or sets the unique identifier of an external solver to be used for this unit operation. (Inherited from UnitOpBaseClass)
ExtraProperties	(Inherited from BaseClass)
ExtraPropertiesDescriptions	(Inherited from BaseClass)
ExtraPropertiesTypes	(Inherited from BaseClass)
ExtraPropertiesUnitTypes	(Inherited from BaseClass)
FlowSheet	Gets the current flowsheet where this object is located. (Inherited from BaseClass)
GHGEmissionData	(Inherited from BaseClass)
GraphicObject	Gets or sets the graphic object representation of this object in the flowsheet. (Inherited from BaseClass)
HasPropertiesForDynamicMode	Gets a value indicating whether this unit operation exposes additional properties in dynamic mode. (Overrides BaseClassHasPropertiesForDynamicMode)
HeatDuty	Gets or sets the shaft power generated by the expander (kW). Alias for DeltaQ.
Height	(Inherited from BaseClass)
IgnorePhase	Gets or sets a value indicating whether phase validation of the inlet stream is bypassed.
InfoCarrierVarType	(Inherited from BaseClass)
IsAdjustAttached	Checks if an Adjust operation is attached to this object. (Inherited from BaseClass)
IsDirty	(Inherited from BaseClass)
IsFunctional	(Inherited from BaseClass)
IsInfoCarrierAttached	(Inherited from BaseClass)
IsSink	(Inherited from BaseClass)
IsSource	(Inherited from BaseClass)
IsSpecAttached	Checks if an Specification operation is attached to this object. (Inherited from BaseClass)
LastSolutionInputSnapshot	(Inherited from BaseClass)
LastUpdated	(Inherited from BaseClass)
Left	(Inherited from BaseClass)
MobileCompatible	Gets a value indicating whether this unit operation is compatible with DWSIM Mobile. (Overrides BaseClassMobileCompatible)
Name	Object's Unique ID (Name) (Inherited from BaseClass)
ObjectClass	Gets or sets the simulation object class category (PressureChangers). (Overrides BaseClassObjectClass)
OutletTemperature	Gets or sets the calculated outlet temperature of the stream (K).
OverrideCalculationRoutine	(Inherited from BaseClass)
ParticleSizeDistributions	Gets or sets the dictionary of particle size distribution data, keyed by compound or stream name. (Inherited from UnitOpBaseClass)
Phases	Phase collection, only implemented for Material Streams. (Inherited from BaseClass)
PolytropicCoefficient	Gets or sets the polytropic volume exponent coefficient, calculated from inlet and outlet conditions.
PolytropicEfficiency	Gets or sets the polytropic efficiency of the expander (%).
PolytropicHead	Gets or sets the polytropic head of the expander (m).
POut	Gets or sets the outlet pressure of the expander (Pa).
PreferredFlashAlgorithmTag	(Inherited from BaseClass)
PressureDrop	Gets or sets the pressure drop across the expander (Pa). Alias for DeltaP.
PressureRatio	Gets or sets the outlet-to-inlet pressure ratio across the expander.
ProcessPath	Gets or sets the thermodynamic path (adiabatic or polytropic) used for expansion.
ProductAssembly	(Inherited from BaseClass)
ProductAuthor	(Inherited from BaseClass)
ProductContactInfo	(Inherited from BaseClass)
ProductDescription	(Inherited from BaseClass)
ProductName	(Inherited from BaseClass)
ProductPage	(Inherited from BaseClass)
ProductVersion	(Inherited from BaseClass)
PropertyPackage	Gets or sets the property package associated with this object. (Inherited from UnitOpBaseClass)
Right	(Inherited from BaseClass)
SelectedEquipmentType	Gets or sets the name of the equipment type currently selected for this unit operation. (Inherited from UnitOpBaseClass)
SpecVarType	If an Specification object is attached to this object, returns a variable describing how this object is used by it (target or source). (Inherited from BaseClass)
Speed	Gets or sets the rotation speed of the expander impeller (rpm).
StoreDetailedDebugReport	(Inherited from BaseClass)
SupportsDynamicMode	Gets a value indicating whether this unit operation supports dynamic simulation mode. (Overrides BaseClassSupportsDynamicMode)
SupportsParticleSizeDistributions	Gets a value indicating whether this unit operation supports particle size distribution calculations. (Inherited from UnitOpBaseClass)
SupportsRestoreStateAfterError	Gets a value indicating whether this unit operation supports restoring its state after a solver error. (Inherited from UnitOpBaseClass)
TemperatureChange	Gets or sets the temperature change of the stream (K). Alias for DeltaT.
Top	(Inherited from BaseClass)
UserDefinedChartNames	(Inherited from BaseClass)
Visible	(Inherited from BaseClass)
Width	(Inherited from BaseClass)

Methods

AddDynamicProperty	(Inherited from BaseClass)
AddExtraProperty	(Inherited from BaseClass)
AppendDebugLine	(Inherited from BaseClass)
Calculate	Performs the main thermodynamic calculation for the expander: determines outlet conditions (pressure, temperature, enthalpy) and the shaft power generated based on the selected calculation mode and thermodynamic path. (Overrides BaseClassCalculate(Object))
CheckDirtyStatus	Checks whether the unit operation's input data has changed since the last successful solve, and updates the dirty flag accordingly. (Inherited from UnitOpBaseClass)
CheckSpec	Checks if a value is valid. (Inherited from BaseClass)
ClearExtraProperties	(Inherited from BaseClass)
ClearPropertyPackageInstance	Removes the externally set property package instance from this unit operation, reverting to the flowsheet-level property package lookup. (Inherited from UnitOpBaseClass)
Clone	Clones the current object, returning a new one with identical properties. (Inherited from BaseClass)
CloneJSON	Creates a deep copy of this expander by serializing and deserializing through JSON. (Overrides BaseClassCloneJSON)
CloneXML	Creates a deep copy of this expander by serializing and deserializing through XML. (Overrides BaseClassCloneXML)
CloseDynamicsEditForm	(Inherited from BaseClass)
CloseEditForm	Closes the editing form for this expander if it is currently open and not already disposed. (Overrides BaseClassCloseEditForm)
ConnectEnergyStream	(Inherited from BaseClass)
ConnectFeedEnergyStream	(Inherited from BaseClass)
ConnectFeedMaterialStream	(Inherited from BaseClass)
ConnectProductEnergyStream	(Inherited from BaseClass)
ConnectProductMaterialStream	(Inherited from BaseClass)
CopyDataToClipboard	Copies the object properties to the Clipboard. (Inherited from BaseClass)
CreateCurves	Creates a default set of performance curves (HEAD, EFF, POWER) for a new rotation speed entry.
CreateDimensionsList	Creates the list of sizing dimensions applicable to this expander (flow, pressure, efficiency, power). (Overrides UnitOpBaseClassCreateDimensionsList)
CreateDynamicProperties	(Inherited from BaseClass)
CreateNew	(Inherited from BaseClass)
DeCalculate	Resets the outlet material stream and energy stream to an uncalculated state, clearing all previously computed values. (Overrides UnitOpBaseClassDeCalculate)
DeCalculate(Object)	(Inherited from BaseClass)
DisplayDynamicsEditForm	(Inherited from BaseClass)
DisplayEditForm	Opens or activates the editing form for this expander unit operation. (Overrides BaseClassDisplayEditForm)
DisplayExtraPropertiesEditForm	(Inherited from BaseClass)
Dispose	(Inherited from BaseClass)
Dispose(Boolean)	(Inherited from BaseClass)
FT	Formats a property string, adding its units in parenthesis. (Inherited from BaseClass)
GetAsObject	(Inherited from BaseClass)
GetBytesFromResource	(Inherited from BaseClass)
GetCalculationModes	Returns an array of strings describing the available calculation modes for display in the UI. (Overrides UnitOpBaseClassGetCalculationModes)
GetChartModel	(Inherited from BaseClass)
GetChartModelNames	(Inherited from BaseClass)
GetConnectionPortsInfo	(Inherited from BaseClass)
GetConnectionPortsList	(Inherited from BaseClass)
GetDebugReport	Runs the unit operation in debug mode and returns a formatted text report containing intermediate calculation steps and any error information. (Inherited from UnitOpBaseClass)
GetDebugWriter	(Inherited from BaseClass)
GetDefaultProperties	(Inherited from BaseClass)
GetDisplayDescription	Returns the localized display description for the expander unit operation. (Overrides BaseClassGetDisplayDescription)
GetDisplayName	Returns the localized display name for the expander unit operation. (Overrides BaseClassGetDisplayName)
GetDynamicContents	Returns the current mass held in the accumulation stream of this unit operation. (Inherited from UnitOpBaseClass)
GetDynamicProperty	(Inherited from BaseClass)
GetDynamicPropertyUnitType	(Inherited from BaseClass)
GetDynamicResidenceTime	Returns the dynamic residence time of this unit operation, computed as volume divided by the total volumetric inlet flow rate. (Inherited from UnitOpBaseClass)
GetDynamicVolume	Returns the dynamic volume of this unit operation from its dynamic property store. (Inherited from UnitOpBaseClass)
GetEditingForm	(Inherited from BaseClass)
GetEnergyBalanceResidual	(Inherited from BaseClass)
GetEnergyConsumption	Returns the total energy consumed by this unit operation by summing the energy flows from all connected energy streams and the energy connector. (Inherited from UnitOpBaseClass)
GetExtraPropertyValue	(Inherited from BaseClass)
GetFlowsheet	(Inherited from BaseClass)
GetIconBitmap	Returns the icon bitmap resource associated with the expander unit operation. (Overrides BaseClassGetIconBitmap)
GetIconBitmapBytes	Returns the icon for this expander as a raw byte array (PNG format). (Overrides BaseClassGetIconBitmapBytes)
GetKeyPropertyNames	Returns the names of the key output properties reported by this unit operation. (Inherited from UnitOpBaseClass)
GetKeyPropertyUnits	Returns the display unit string for a named key property. (Inherited from UnitOpBaseClass)
GetKeyPropertyValue	Returns the current numeric value of a named key property in SI units. (Inherited from UnitOpBaseClass)
GetMassBalanceResidual	(Inherited from BaseClass)
GetPowerGeneratedOrConsumed	(Inherited from BaseClass)
GetPreferredGraphicObjectHeight	(Inherited from BaseClass)
GetPreferredGraphicObjectWidth	(Inherited from BaseClass)
GetProperties	Returns the list of property identifiers for this expander filtered by the specified access type. (Overrides BaseClassGetProperties(PropertyType))
GetProperties2	(Inherited from BaseClass)
GetPropertyDescription	Returns a human-readable description of the specified property for display in the properties panel. (Overrides BaseClassGetPropertyDescription(String))
GetPropertyUnit	Returns the unit string for the specified property in the given unit system. (Overrides BaseClassGetPropertyUnit(String, IUnitsOfMeasure))
GetPropertyUnits2	(Inherited from BaseClass)
GetPropertyValue	Returns the current value of the specified property, converted to the given unit system. (Overrides UnitOpBaseClassGetPropertyValue(String, IUnitsOfMeasure))
GetPropertyValue2	(Inherited from BaseClass)
GetReport	Generates a plain-text report of the expander's inlet conditions, calculation parameters, and results. (Overrides BaseClassGetReport(IUnitsOfMeasure, CultureInfo, String))
GetStructuredReport	Generates a structured report of the expander's calculation parameters and results, formatted as a list of typed report items for display in the UI. (Overrides BaseClassGetStructuredReport)
GetVersion	(Inherited from BaseClass)
IsDynamicProperty	(Inherited from BaseClass)
LoadData	Loads the expander's state from a list of XML elements, restoring saved properties and performance curves. (Overrides UnitOpBaseClassLoadData(ListXElement))
ObjectCopy	(Inherited from BaseClass)
PerformPostCalcValidation	(Inherited from BaseClass)
RemoveDynamicProperty	(Inherited from BaseClass)
RemoveExtraProperty	(Inherited from BaseClass)
RunDynamicModel	Executes the dynamic model of the expander, delegating to the steady-state calculation routine. (Overrides BaseClassRunDynamicModel)
SaveData	Saves the expander's current state as a list of XML elements, including performance curves. (Overrides UnitOpBaseClassSaveData)
SetCalculationMode	Sets the active calculation mode of the expander by numeric ID. (Overrides UnitOpBaseClassSetCalculationMode(Int32))
SetCanUsePreviousResults	(Inherited from BaseClass)
SetDirtyStatus	(Inherited from BaseClass)
SetDynamicProperty	(Inherited from BaseClass)
SetExtraPropertyValue	(Inherited from BaseClass)
SetFlowsheet	Sets the Flowsheet to which this object belongs to. (Inherited from BaseClass)
SetKeyPropertyValue	Sets the value of a named key property, converting from the supplied units to SI internally. (Inherited from UnitOpBaseClass)
SetPropertyPackageInstance	Assigns an externally supplied property package instance to this unit operation, bypassing the flowsheet-level property package lookup. (Inherited from UnitOpBaseClass)
SetPropertyValue	Sets the value of the specified property, converting from the given unit system to SI. (Overrides BaseClassSetPropertyValue(String, Object, IUnitsOfMeasure))
SetPropertyValue2	(Inherited from BaseClass)
Solve	Solves the unit operation, optionally saving and restoring state on error when the flowsheet option RestoreUnitOperationStateAfterError is enabled. (Inherited from UnitOpBaseClass)
StoreDebugReport	(Inherited from BaseClass)
ToString	(Inherited from BaseClass)
TransferAdditionalSolidData	(Inherited from BaseClass)
Unsolve	Decalculates the object. (Inherited from UnitOpBaseClass)
UpdateDimensionsList	Updates the sizing dimensions list with the current calculated values from the expander. (Overrides UnitOpBaseClassUpdateDimensionsList)
UpdateDynamicsEditForm	(Inherited from BaseClass)
UpdateEditForm	Refreshes the editing form with the latest calculated values if the form is currently open. (Overrides BaseClassUpdateEditForm)
UpdateExtraPropertiesEditForm	(Inherited from BaseClass)
Validate	Validates the object, checking its connections and other parameters. (Inherited from BaseClass)

Fields

_CanUsePreviousResults	(Inherited from BaseClass)
_capeopenmode	(Inherited from UnitOpBaseClass)
_IsDirty	(Inherited from BaseClass)
_pp	(Inherited from UnitOpBaseClass)
_ppid	(Inherited from UnitOpBaseClass)
AccumulationStream	(Inherited from UnitOpBaseClass)
CalculationRoutineOverride	(Inherited from BaseClass)
disposedValue	(Inherited from BaseClass)
ExtraPropertiesEditor	(Inherited from BaseClass)
f
fd	(Inherited from BaseClass)
LaunchExternalPropertyEditor	(Inherited from BaseClass)
m_flowsheet	(Inherited from BaseClass)

Extension Methods

GetEnergyStream	(Defined by StreamListExtender)
GetEnumNames	(Defined by General)
GetInletEnergyStream	(Defined by StreamListExtender)
GetInletMaterialStream	(Defined by StreamListExtender)
GetOutletEnergyStream	(Defined by StreamListExtender)
GetOutletMaterialStream	(Defined by StreamListExtender)
IsValidDouble	(Defined by General)