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Enclosed Flare Systems

Ground-level enclosed flares that burn gas within a refractory chamber to limit visible flame and radiation.

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Enclosed Flare Systems: Enclosed flare functional diagramFlare-system boundaryRelief gasKnockout drumEnclosed combustionchamberCombustionproductsSeparated liquidPilot gas andignition

Purpose

Provide flare disposal where radiation, separation distance and visual impact are tightly constrained.

Arrangement and integration

Equipment functional diagram

The diagram identifies the principal process duties, equipment connections and product handover points. Final scope, redundancy and battery limits are established from project data.

ZFUEnclosed flare functional diagramFunctional diagram
Enclosed Flare Systems: Enclosed flare functional diagramFlare-system boundaryRelief gasKnockout drumEnclosed combustionchamberCombustionproductsSeparated liquidPilot gas andignition
GasFuel gasDrain

A typical equipment arrangement is shown. Final execution, redundancy and valve scope are established during engineering.

Engineering basis

Design parameters

Final ratings, materials and supply scope are established from project-specific operating data.

Relief compositioncomposition, liquid and solids content
Relief ratescontinuous, intermittent and emergency cases
Pressure and temperatureat the package boundary for each case
Safety basisradiation, dispersion, noise and separation distances

Process functions

Principal process duties

  • Gas-air mixing in burner assemblies
  • Combustion inside an enclosed chamber
  • Temperature, flame and refractory-condition monitoring

Typical scope

Main equipment

  • 01

    Main process vessel or package

  • 02

    Skid, supports, platforms and piping

  • 03

    Valves, instrumentation and protection systems

  • 04

    Insulation, heat tracing, shelter and electrical systems as required

Questionnaire

Data required for engineering

Worked examples and vessel-volume fields are retained. Use them as guidance or provide parameters from an existing design.

ZFU questionnaire
  1. 01

    Process fluid and physical properties

  2. 02

    Flow, pressure and temperature for all cases

  3. 03

    Required process result and allowable pressure drop

  4. 04

    Materials, climate and installation category

  5. 05

    Dimensional constraints, battery limits and automation requirements

Proposal request

Operating data for a technical and commercial proposal

Attach the completed questionnaire or provide the principal operating data below. Equipment scope, design ratings and battery limits follow engineering review.

Email the questionnaire, specification and attachments

Related scope

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