Class FlareMechanicalDesign

java.lang.Object
neqsim.process.mechanicaldesign.MechanicalDesign
neqsim.process.mechanicaldesign.flare.FlareMechanicalDesign
All Implemented Interfaces:
Serializable
public class FlareMechanicalDesign extends MechanicalDesign
Mechanical design for flare systems per API 521/537.

Covers flare tip sizing, radiation contour estimation, stack height determination, and flare header hydraulics. The design uses the Brzustowski-Sommer / API 521 single-point-source model for thermal radiation calculations.

Version:
1.0
Author:
esol
See Also:

  • Field Details

    • serialVersionUID

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

    • tipDiameter

      private double tipDiameter
      Tip diameter in meters.

    • stackHeight

      private double stackHeight
      Stack height in meters.

    • headerDiameter

      private double headerDiameter
      Flare header diameter in meters.

    • maxRadiationAtGrade

      private double maxRadiationAtGrade
      Maximum allowable radiation at grade level in kW/m2 (API 521 Table 5).

    • maxRadiationAtPropertyLine

      private double maxRadiationAtPropertyLine
      Maximum allowable radiation at property line in kW/m2.

    • radiantFraction

      private double radiantFraction
      Radiant fraction of total heat release.

    • maxTipMachNumber

      private double maxTipMachNumber
      Maximum Mach number at flare tip (API 521 recommendation).

    • maxHeaderVelocity

      private double maxHeaderVelocity
      Maximum header velocity in m/s (API 521).

    • minPurgeVelocity

      private double minPurgeVelocity
      Minimum purge velocity in m/s to prevent flashback.

    • designWindSpeed

      private double designWindSpeed
      Wind speed for radiation calculation in m/s.

    • flameTiltAngle

      private double flameTiltAngle
      Flame tilt angle in radians (computed).

    • flameLength

      private double flameLength
      Flame length in meters (computed).

    • radiationDistanceAtGrade

      private double radiationDistanceAtGrade
      Radiation distance at max grade-level radiation (computed) in meters.

    • designHeatReleaseMW

      private double designHeatReleaseMW
      Design heat release rate in MW.

    • maxBackpressureKPag

      private double maxBackpressureKPag
      Maximum backpressure at any relief device in kPa gauge.

    • stackMaterial

      private String stackMaterial
      Stack material.

    • stackWallThickness

      private double stackWallThickness
      Stack wall thickness in mm (computed).

    • stackWeight

      private double stackWeight
      Estimated stack weight in kg.

    • pilotGasConsumption

      private double pilotGasConsumption
      Pilot gas consumption in Sm3/hr.

    • smokeSuppressingSteamRate

      private double smokeSuppressingSteamRate
      Smoke suppression steam rate in kg/hr (0 if smokeless).

  • Constructor Details

    • FlareMechanicalDesign

      public FlareMechanicalDesign(ProcessEquipmentInterface equipment)
      Constructor for FlareMechanicalDesign.
      Parameters:
      equipment - the flare equipment

  • Method Details

    • calcDesign

      public void calcDesign()

      calcDesign.

      Overrides:
      calcDesign in class MechanicalDesign

    • getTipDiameter

      public double getTipDiameter()
      Gets the calculated tip diameter.
      Returns:
      tip diameter in meters

    • getStackHeight

      public double getStackHeight()
      Gets the stack height.
      Returns:
      stack height in meters

    • getHeaderDiameter

      public double getHeaderDiameter()
      Gets the header diameter.
      Returns:
      header diameter in meters

    • getFlameLength

      public double getFlameLength()
      Gets the flame length.
      Returns:
      flame length in meters

    • getRadiationDistanceAtGrade

      public double getRadiationDistanceAtGrade()
      Gets the radiation distance at grade.
      Returns:
      radiation distance in meters

    • getDesignHeatReleaseMW

      public double getDesignHeatReleaseMW()
      Gets the design heat release rate.
      Returns:
      heat release in MW

    • getStackWeight

      public double getStackWeight()
      Gets the stack weight.
      Returns:
      weight in kg

    • getPilotGasConsumption

      public double getPilotGasConsumption()
      Gets the pilot gas consumption.
      Returns:
      consumption in Sm3/hr

    • getSmokeSuppressingSteamRate

      public double getSmokeSuppressingSteamRate()
      Gets the steam rate for smoke suppression.
      Returns:
      steam rate in kg/hr

    • setMaxRadiationAtGrade

      public void setMaxRadiationAtGrade(double maxRadiation)
      Sets the maximum allowable radiation at grade level.
      Parameters:
      maxRadiation - kW/m2 (API 521 Table 5 default 6.31)

    • setRadiantFraction

      public void setRadiantFraction(double fraction)
      Sets the radiant fraction.
      Parameters:
      fraction - radiant fraction (0-1)

    • setMaxTipMachNumber

      public void setMaxTipMachNumber(double mach)
      Sets the maximum Mach number at flare tip.
      Parameters:
      mach - Mach number (default 0.5 per API 521)

    • setDesignWindSpeed

      public void setDesignWindSpeed(double windSpeed)
      Sets the design wind speed.
      Parameters:
      windSpeed - wind speed in m/s

    • setStackMaterial

      public void setStackMaterial(String material)
      Sets the stack material.
      Parameters:
      material - material designation (e.g., "SS-310", "SS-316L")

    • getFlameTiltAngle

      public double getFlameTiltAngle()
      Gets the flame tilt angle.
      Returns:
      tilt angle in radians

    • getStackWallThickness

      public double getStackWallThickness()
      Gets the stack wall thickness.
      Returns:
      wall thickness in mm

    • getStackMaterial

      public String getStackMaterial()
      Gets the stack material.
      Returns:
      material designation string