Class ControlValve

java.lang.Object

neqsim.util.NamedBaseClass

neqsim.process.SimulationBaseClass

neqsim.process.equipment.ProcessEquipmentBaseClass

neqsim.process.equipment.TwoPortEquipment

neqsim.process.equipment.valve.ThrottlingValve

neqsim.process.equipment.valve.ControlValve

All Implemented Interfaces:

Serializable, Runnable, ProcessEquipmentInterface, TwoPortInterface, ValveInterface, SimulationInterface, NamedInterface

Direct Known Subclasses:

LevelControlValve, PressureControlValve

public class ControlValve
extends ThrottlingValve

Control valve for process flow control.

ControlValve is a specialized throttling valve used for automatic or manual flow control in process systems. It provides the same functionality as ThrottlingValve but with clearer semantic meaning in process control applications.

Typical applications include:

• Flow control valves (FCV)
• Pressure control valves (PCV)
• Temperature control valves (TCV)
• Level control valves (LCV)

Example usage:

ControlValve flowControlValve = new ControlValve("FCV-101", inletStream);
flowControlValve.setPercentValveOpening(50.0); // 50% open
flowControlValve.setCv(300.0); // Flow coefficient
flowControlValve.run();

Version:

1.0

Author:

ESOL

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
private static final long	serialVersionUID	Serialization version UID.

Fields inherited from class ThrottlingValve

isCalcPressure, logger, molarFlow, pressure, thermoSystem, valveMechanicalDesign

Fields inherited from class TwoPortEquipment

inStream, outStream

Fields inherited from class ProcessEquipmentBaseClass

conditionAnalysisMessage, energyStream, hasController, isSolved, properties, report

Fields inherited from class SimulationBaseClass

calcIdentifier, calculateSteadyState, time

Fields inherited from class NamedBaseClass

name

Constructor Summary

Constructors

Constructor	Description
ControlValve(String name)	Constructor for ControlValve.
ControlValve(String name, StreamInterface inStream)	Constructor for ControlValve.

Method Summary

Modifier and Type	Method	Description
String	toString()

Methods inherited from class ThrottlingValve

calcKv, calculateMolarFlow, calculateOutletPressure, displayResult, getCapacityDuty, getCapacityMax, getCg, getClosingTravelTime, getCv, getCv, getDeltaPressure, getDeltaPressure, getEntropyProduction, getExergyChange, getFp, getInletPressure, getKv, getMechanicalDesign, getOpeningTravelTime, getOutletPressure, getPercentValveOpening, getResultTable, getTargetPercentValveOpening, getThermoSystem, getTravelModel, getTravelTime, getTravelTimeConstant, initMechanicalDesign, isAcceptNegativeDP, isAllowChoked, isAllowLaminar, isGasValve, isIsoThermal, isValveKvSet, needRecalculation, run, runController, runTransient, setAcceptNegativeDP, setAllowChoked, setAllowLaminar, setClosingTravelTime, setCv, setCv, setDeltaPressure, setFp, setGasValve, setIsCalcOutPressure, setIsoThermal, setKv, setMaximumValveOpening, setMinimumValveOpening, setOpeningTravelTime, setOutletPressure, setOutletPressure, setPercentValveOpening, setPressure, setPressure, setTargetPercentValveOpening, setTravelModel, setTravelTime, setTravelTimeConstant, setValveKvSet, toJson, toJson

Methods inherited from class TwoPortEquipment

getInletStream, getInletTemperature, getMassBalance, getOutletStream, getOutletTemperature, setInletPressure, setInletStream, setInletTemperature, setOutletStream, setOutletTemperature, validateSetup

Methods inherited from class ProcessEquipmentBaseClass

copy, equals, getConditionAnalysisMessage, getController, getEnergyStream, getMassBalance, getMinimumFlow, getPressure, getPressure, getProperty, getReport_json, getSpecification, getTemperature, getTemperature, hashCode, isActive, isActive, isSetEnergyStream, reportResults, run_step, runConditionAnalysis, setController, setEnergyStream, setEnergyStream, setFlowValveController, setMinimumFlow, setRegulatorOutSignal, setSpecification, setTemperature, solved

Methods inherited from class SimulationBaseClass

getCalculateSteadyState, getCalculationIdentifier, getTime, increaseTime, isRunInSteps, setCalculateSteadyState, setCalculationIdentifier, setRunInSteps, setTime

Methods inherited from class NamedBaseClass

getName, getTagName, setName, setTagName

Methods inherited from class Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface NamedInterface

getName, getTagName, setName, setTagName

Methods inherited from interface ProcessEquipmentInterface

equals, getConditionAnalysisMessage, getController, getExergyChange, getFluid, getMassBalance, getMassBalance, getPressure, getPressure, getReport_json, getRestCapacity, getSpecification, getTemperature, getTemperature, hashCode, reportResults, runConditionAnalysis, setController, setRegulatorOutSignal, setSpecification, setTemperature, validateSetup

Methods inherited from interface SimulationInterface

getCalculateSteadyState, getCalculationIdentifier, getTime, increaseTime, isRunInSteps, run, run_step, run_step, runTransient, setCalculateSteadyState, setCalculationIdentifier, setRunInSteps, setTime, solved

Methods inherited from interface TwoPortInterface

getInletStream, getInletTemperature, getInStream, getOutletStream, getOutletTemperature, getOutStream, setInletPressure, setInletStream, setInletTemperature, setOutletStream, setOutletTemperature

Field Details

serialVersionUID

private static final long serialVersionUID

Serialization version UID.

See Also:

• Constant Field Values

Constructor Details

ControlValve

public ControlValve(String name)

Constructor for ControlValve.

Parameters:

name - name of the control valve

ControlValve

public ControlValve(String name,
 StreamInterface inStream)

Constructor for ControlValve.

Parameters:

name - name of the control valve

inStream - inlet stream

Method Details

toString

public String toString()

Returns a string representation specific to control valves.

Overrides:

toString in class Object