Class HeatExchangerElectricalDesign

java.lang.Object
neqsim.process.electricaldesign.ElectricalDesign
neqsim.process.electricaldesign.heatexchanger.HeatExchangerElectricalDesign
All Implemented Interfaces:
Serializable
public class HeatExchangerElectricalDesign extends ElectricalDesign
Electrical design for heat exchangers (heaters, coolers, and heat exchangers).

Extends ElectricalDesign with heat-exchanger-specific electrical requirements. The electrical design depends on the type of heat exchanger:

  • Electric heater: Full heating duty is electrical (resistance heating elements)
  • Air cooler: Fan motor(s) sized based on cooling duty — typically 0.5-2% of thermal duty, minimum 2 kW
  • Shell-and-tube: Cooling water pump and instrumentation only
Version:
1.0
Author:
Even Solbraa
See Also:

  • Field Details

    • serialVersionUID

      private static final long serialVersionUID
      Serialization version UID.
      See Also:

    • heatExchangerType

      private HeatExchangerElectricalDesign.HeatExchangerType heatExchangerType

    • numberOfFans

      private int numberOfFans

    • fanEfficiency

      private double fanEfficiency

    • instrumentationKW

      private double instrumentationKW

    • coolingWaterPumpKW

      private double coolingWaterPumpKW

    • totalAuxiliaryKW

      private double totalAuxiliaryKW

  • Constructor Details

    • HeatExchangerElectricalDesign

      public HeatExchangerElectricalDesign(ProcessEquipmentInterface processEquipment)
      Constructor for HeatExchangerElectricalDesign.
      Parameters:
      processEquipment - the heat exchanger equipment

  • Method Details

    • autoDetectType

      private void autoDetectType()
      Auto-detect the heat exchanger type from the equipment class.

    • getProcessShaftPowerKW

      protected double getProcessShaftPowerKW()
      Get shaft power from the process equipment.

      Default returns the manually set shaftPowerKW value. Equipment-specific subclasses should override this to read from the process equipment directly.

      For electric heaters, the shaft power represents the heating element power derived from the process duty. For air coolers, this returns fan motor shaft power. For shell-and-tube, returns zero (auxiliary loads only).

      Overrides:
      getProcessShaftPowerKW in class ElectricalDesign
      Returns:
      shaft power in kW

    • readDesignSpecifications

      public void readDesignSpecifications()
      Read design specifications from data sources.

      Subclasses can override to load equipment-specific electrical specifications.

      Overrides:
      readDesignSpecifications in class ElectricalDesign

    • calcDesign

      public void calcDesign()
      Run the electrical design calculation.

      Sizes the motor, optional VFD, cables, and switchgear based on the process equipment's shaft power requirement.

      Overrides:
      calcDesign in class ElectricalDesign

    • calculateAuxiliaryLoads

      private void calculateAuxiliaryLoads()
      Calculate auxiliary loads (instrumentation, CW pump).

    • getTotalAuxiliaryKW

      public double getTotalAuxiliaryKW()
      Get the total auxiliary power in kW.
      Returns:
      total auxiliary power in kW

    • getTotalConnectedLoadKW

      public double getTotalConnectedLoadKW()
      Get the total connected load including main duty and auxiliaries.
      Returns:
      total connected load in kW

    • getHeatExchangerType

      public HeatExchangerElectricalDesign.HeatExchangerType getHeatExchangerType()
      Get the heat exchanger type.
      Returns:
      heat exchanger type

    • setHeatExchangerType

      public void setHeatExchangerType(HeatExchangerElectricalDesign.HeatExchangerType heatExchangerType)
      Set the heat exchanger type.
      Parameters:
      heatExchangerType - heat exchanger type

    • getNumberOfFans

      public int getNumberOfFans()
      Get the number of fans (for air coolers).
      Returns:
      number of fans

    • setNumberOfFans

      public void setNumberOfFans(int numberOfFans)
      Set the number of fans (for air coolers).
      Parameters:
      numberOfFans - number of fans

    • getFanEfficiency

      public double getFanEfficiency()
      Get the fan efficiency.
      Returns:
      fan efficiency (0-1)

    • setFanEfficiency

      public void setFanEfficiency(double fanEfficiency)
      Set the fan efficiency.
      Parameters:
      fanEfficiency - fan efficiency (0-1)

    • getInstrumentationKW

      public double getInstrumentationKW()
      Get instrumentation power in kW.
      Returns:
      instrumentation power in kW

    • setInstrumentationKW

      public void setInstrumentationKW(double instrumentationKW)
      Set instrumentation power in kW.
      Parameters:
      instrumentationKW - instrumentation power in kW

    • getCoolingWaterPumpKW

      public double getCoolingWaterPumpKW()
      Get cooling water pump power in kW.
      Returns:
      cooling water pump power in kW

    • setCoolingWaterPumpKW

      public void setCoolingWaterPumpKW(double coolingWaterPumpKW)
      Set cooling water pump power in kW.
      Parameters:
      coolingWaterPumpKW - cooling water pump power in kW