MANUAL OF PETROLEUM MEASUREMENT STANDARDS - CHAPTER 14: NATURAL GAS FLUIDS MEASUREMENT - SECTION 10: MEASUREMENT OF FLOW TO FLARES
American Petroleum Institute
1 INTRODUCTION
1.1 Scope
1.2 Background
1.3 Field of Application
1.4 Flare Metering Technologies
2 REFERENCE PUBLICATIONS
3 TERMINOLOGY AND DEFINITIONS
3.1 Definitions Consistent with Definitions in API MPMS
Chapter 1
3.2 Definitions Unique to This Standard
4 APPLICATION CONSIDERATIONS FOR METERS IN FLARE SYSTEMS
4.1 General Considerations
4.2 Location of Flare Meters
4.3 Application-specific Factors Affecting Flow Meter
Performance
4.4 Meter Sizing
4.5 Measurement Uncertainty
4.6 Flow Meter Selection
4.7 Specific Meter Considerations
4.8 Secondary Instrumentation
4.9 Codes and Standards
4.10 Maintenance Considerations
4.11 Record-keeping
5 FACTORY CALIBRATIONS/VERIFICATIONS
5.1 Flow Meter
5.2 Pressure and Temperature Instruments
6 COMMISSIONING AND STARTUP
6.1 Equipment Installation
6.2 FFMS Commissioning
7 PERIODIC VERIFICATION
7.1 General
7.2 Periodic Verification Method - Flow Meter
7.3 Periodic Verification Method - Secondary Devices
8 RE-EVALUATION OF EXISTING FFMS
8.1 Re-evaluation Procedure
9 PERFORMANCE TEST PROTOCOL SCOPE
9.1 General
9.2 General Performance Test Protocol Requirements
10 UNCERTAINTY AND PROPAGATION OF ERROR
10.1 Objective
10.2 Uncertainty Analysis Procedure
10.3 Simplified Uncertainty Analysis Procedure
10.4 Uncertainty Estimate for Flare Composition
10.5 Meter-specific Examples
11 DOCUMENTATION
11.1 Procedural Documentation
11.2 Scaling Documentation
11.3 Other Documentation
11.4 Management of Change Documentation
APPENDIX A-1 - EXAMPLE PROCESS STREAM DATA SHEET
APPENDIX A-2 - FLARE METER CALCULATIONS
APPENDIX A-3 - COMPRESSIBILITY EFFECTS ON FLARE GAS MEASUREMENT
UNCERTAINTY
APPENDIX A-4 - GENERAL FLARE DESIGN CONSIDERATIONS
APPENDIX A-5 - GUIDANCE ON MANAGEMENT OF CHANGE PROCESS - FFMS
SYSTEMS
APPENDIX A-6 - VELOCITY PROFILE AND VELOCITY INTEGRATION
CONSIDERATIONS FOR FLARE GAS MEASUREMENT
Provides measurement of flow to flares, and includes: a) Application considerations. b) Selection criteria and other considerations for flare meters and related instrumentation. c) Installation considerations. d) Limitations of flare measurement technologies. e) Calibration. f) Operation. g) Uncertainty and propagation of error. h) Calculations.
| Document Type | Standard |
| Status | Current |
| Publisher | American Petroleum Institute |
| ProductNote | Reconfirmed 2007 |
