Relief
Represents a safety relief valve (PSV / PRV) unit operation that opens progressively
between a set-point pressure and a fully-opened pressure, relieving fluid to a downstream
line. The orifice area, discharge coefficient, and back-pressure corrections follow
API 520 / ASME Section VIII methodology.
Definition
Namespace: DWSIM.UnitOperations.UnitOperations
Assembly: DWSIM.UnitOperations (in DWSIM.UnitOperations.dll) Version: 10.0.0.0
Assembly: DWSIM.UnitOperations (in DWSIM.UnitOperations.dll) Version: 10.0.0.0
C#
public class ReliefValve : UnitOpBaseClass,
IExternalUnitOperationVB
Public Class ReliefValve
Inherits UnitOpBaseClass
Implements IExternalUnitOperation- Inheritance
- Object BaseClass UnitOpBaseClass ReliefValve
- Implements
- IExternalUnitOperation
Constructors
| ReliefValve | |
| ReliefValve | Initializes a new default instance of the ReliefValve class. |
| ReliefValve(String, String) | Initializes a new instance of the ReliefValve class with a name and description. |
Properties
| 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) |
| BackPressureCoefficient | Gets or sets the back-pressure correction factor applied to the relieving capacity. |
| Bottom | (Inherited from BaseClass) |
| Calculated | (Inherited from BaseClass) |
| CanUsePreviousResults | (Inherited from BaseClass) |
| CharacteristicParameter | Gets or sets the characteristic parameter used with the equal-percentage inherent curve. |
| 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) |
| DebugMode | (Inherited from BaseClass) |
| DebugText | (Inherited from BaseClass) |
| DefinedOpeningKvRelationShipType | Gets or sets the relationship type between valve opening and effective Kv. |
| Description | Gets the description of this external unit operation. |
| 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) |
| DischargeCoefficient | Gets or sets the effective discharge coefficient of the orifice. |
| 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 available equipment type names supported by this unit operation.
(Inherited from UnitOpBaseClass) |
| 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) |
| FullyOpenedPressure | Gets or sets the pressure (Pa) at which the relief valve is fully open. |
| 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 has no dedicated dynamic-mode properties. (Overrides BaseClassHasPropertiesForDynamicMode) |
| Height | (Inherited from BaseClass) |
| 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 this unit operation is not compatible with mobile/cross-platform interfaces. (Overrides BaseClassMobileCompatible) |
| Name |
Object's Unique ID (Name)
(Inherited from BaseClass) |
| ObjectClass | Gets or sets the simulation object class category (PressureChangers). (Overrides BaseClassObjectClass) |
| OpeningKvRelDataTableX | Gets or sets the X-axis data (opening %) for a user-defined Kv data table. |
| OpeningKvRelDataTableY | Gets or sets the Y-axis data (Kv %) for a user-defined Kv data table. |
| OrificeArea | Gets or sets the effective orifice area (m²). Default is API orifice designation "D". |
| OverrideCalculationRoutine | (Inherited from BaseClass) |
| ParticleSizeDistributions |
Gets or sets the dictionary of particle size distribution data, keyed by compound or stream name.
(Inherited from UnitOpBaseClass) |
| PercentOpeningVersusPercentKvExpression | Gets or sets the expression relating percentage opening to percentage Kv (e.g. "1.0*OP"). |
| Phases |
Phase collection, only implemented for Material Streams.
(Inherited from BaseClass) |
| PreferredFlashAlgorithmTag | (Inherited from BaseClass) |
| Prefix | Gets the default name prefix used when adding this unit operation to a flowsheet. |
| 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) |
| SetPointPressure | Gets or sets the set-point pressure (Pa) at which the relief valve begins to open. |
| 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) |
| StandardOrificeAreas | Gets the list of standard API orifice letter designations with their areas. |
| 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) |
| Top | (Inherited from BaseClass) |
| UserDefinedChartNames | (Inherited from BaseClass) |
| ViscosityCoefficient | Gets or sets the viscosity correction coefficient applied to the discharge calculation. |
| Visible | (Inherited from BaseClass) |
| Width | (Inherited from BaseClass) |
Methods
| AddDynamicProperty | (Inherited from BaseClass) |
| AddExtraProperty | (Inherited from BaseClass) |
| AppendDebugLine | (Inherited from BaseClass) |
| Calculate | Calculates the relief valve pressure drop and flow. (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 via JSON serialization. (Overrides BaseClassCloneJSON) |
| CloneXML | Creates a deep copy via XML serialization. (Overrides BaseClassCloneXML) |
| CloseDynamicsEditForm | (Inherited from BaseClass) |
| CloseEditForm | Closes and disposes the editing form. (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) |
| CreateConnectors | Creates the graphic connector definitions on the flowsheet. |
| CreateDimensionsList |
Initializes the list of equipment dimensions for this unit operation.
Override to populate the Dimensions collection with dimension entries.
(Inherited from UnitOpBaseClass) |
| CreateDynamicProperties | (Inherited from BaseClass) |
| CreateNew | (Inherited from BaseClass) |
| DeCalculate |
Decalculates the object.
(Inherited from UnitOpBaseClass) |
| DeCalculate(Object) | (Inherited from BaseClass) |
| DisplayDynamicsEditForm | (Inherited from BaseClass) |
| DisplayEditForm | Opens or activates the editing form. (Overrides BaseClassDisplayEditForm) |
| DisplayExtraPropertiesEditForm | (Inherited from BaseClass) |
| Dispose | (Inherited from BaseClass) |
| Dispose(Boolean) | (Inherited from BaseClass) |
| Draw | Draws the relief valve icon on the given SkiaSharp canvas. |
| FT |
Formats a property string, adding its units in parenthesis.
(Inherited from BaseClass) |
| GetAsObject | (Inherited from BaseClass) |
| GetBytesFromResource | (Inherited from BaseClass) |
| GetCalculationModes |
Returns the list of available calculation mode names for this unit operation.
(Inherited from UnitOpBaseClass) |
| 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 display description for this unit operation. (Overrides BaseClassGetDisplayDescription) |
| GetDisplayName | Returns the display name for this 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 | Returns the editing form instance. (Overrides BaseClassGetEditingForm) |
| 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. (Overrides BaseClassGetIconBitmap) |
| GetIconBitmapBytes | (Inherited from BaseClass) |
| 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 | (Inherited from BaseClass) |
| GetProperties2 | (Inherited from BaseClass) |
| GetPropertyDescription | (Inherited from BaseClass) |
| GetPropertyUnit | (Inherited from BaseClass) |
| GetPropertyUnits2 | (Inherited from BaseClass) |
| GetPropertyValue |
Returns the value of a named property, converting from SI to the current unit system.
Falls back to extra properties if the property is not found in the base implementation.
(Inherited from UnitOpBaseClass) |
| GetPropertyValue2 | (Inherited from BaseClass) |
| GetReport | (Inherited from BaseClass) |
| GetStructuredReport | (Inherited from BaseClass) |
| GetVersion | (Inherited from BaseClass) |
| IsDynamicProperty | (Inherited from BaseClass) |
| LoadData |
Restores the unit operation state from a list of XML elements previously produced by SaveData.
(Inherited from UnitOpBaseClass) |
| ObjectCopy | (Inherited from BaseClass) |
| PerformPostCalcValidation | (Inherited from BaseClass) |
| PopulateEditorPanel | Populates the cross-platform editor panel with controls. |
| RemoveDynamicProperty | (Inherited from BaseClass) |
| RemoveExtraProperty | (Inherited from BaseClass) |
| ReturnInstance | Creates and returns a new instance of this unit operation type for deserialization. |
| RunDynamicModel | Performs the dynamic-mode calculation for the relief valve. (Overrides BaseClassRunDynamicModel) |
| SaveData |
Serializes the unit operation state to a list of XML elements for persistence.
(Inherited from UnitOpBaseClass) |
| SetCalculationMode |
Sets the active calculation mode for this unit operation by numeric identifier.
(Inherited from UnitOpBaseClass) |
| 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 | (Inherited from BaseClass) |
| 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 equipment dimensions list after a successful calculation.
Override to refresh computed dimension values.
(Inherited from UnitOpBaseClass) |
| UpdateDynamicsEditForm | (Inherited from BaseClass) |
| UpdateEditForm | Refreshes the editing form with updated data. (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) |
| editwindow | |
| ExtraPropertiesEditor | (Inherited from BaseClass) |
| fd | (Inherited from BaseClass) |
| Image | |
| LaunchExternalPropertyEditor | (Inherited from BaseClass) |
| m_flowsheet | (Inherited from BaseClass) |
| UODescription | |
| UOName |
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) |