ASME MFC 4M 1986 R2016
$98.04
ASME MFC-4M Measurement of Gas Flow by Turbine Meters
| Published By | Publication Date | Number of Pages |
| ASME | 1986 | 28 |
(a) This Standard applies to: (1) axial full-flow turbine meters with mechanical and/or electrical outputs whose rotating member is driven by a compressible fluid; (2) the measurement of gas by a turbine meter; the meter’s construction, installation, operation, performance characteristics, data computation and presentation, calibration, field checking, and other related considerations of the meter. (b) This Standard does not apply to: (1) accessory equipment used to measure pressure and temperature, and/or density for the accurate determination of mass or base volumes, or those accessories used to automatically compute mass or base volumes; (2) steam metering or two-phase flow measurement; (3) applications involving pulsating flow or fluctuating flows where adverse effects on meter accuracy can be anticipated.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 3 | FOREWORD |
| 5 | COMMITTEE ROSTER |
| 7 | CONTENTS |
| 9 | INTRODUCTION |
| 11 | 1 SCOPE 2 SYMBOLS AND DEFINITIONS 2. 1 Definitions |
| 12 | 3 CONSTRUCTION 3.1 General 3.2 Body TABLES TABLE 1 SYMBOLS |
| 13 | FIGURES FIG. 1 SCHEMATIC DRAWINGS OF AXIAL FLOW GAS TURBINE METERS |
| 14 | 3.3 Measuring Mechanism 3.4 Output and Readout Device 4 INSTALLATION 4.1 General 4.2 Installation Configurations |
| 15 | 4.3 Straightening Vanes or Tubes 4.4 Filters or Strainers 4.5 Overrange Protection 4.6 Bypass 4. 7 Additional Installation Requirements TABLE 2 SLOWDOWN VALVE SIZING |
| 16 | FIG. 2 RECOMMENDED INSTALLATION OF AN IN-LINE GAS TURBINE METER (MINIMUM LENGTHS) FIG. 3 SHORT COUPLED INSTALLATION OF AN IN-LINE GAS TURBINE METER (MINIMUM LENGTHS) |
| 17 | FIG. 4 CLOSE COUPLED INSTALLATION OF AN IN-LINE GAS TURBINE METER WITH INTEGRAL STRAIGHTENING VANES FIG. 5 RECOMMENDED INSTALLATION OF AN ANGLE BODY GAS TURBINE METER (MINIMUM LENGTHS) |
| 18 | 4.8 Accessories Installation 5 OPERATION 5.1 General 5.2 Prevention of Meter Overloading 5.3 Caution Against Quick Opening Valves 5.4 Start-Up Recommendation for New Lines 5.5 Maintenance and Inspection Frequency |
| 19 | 6 PERFORMANCE CHARACTERISTICS 6. 1 Repeatability 6.2 Accuracy 6.3 Uncertainties in the Measurement of Flow Rate and Volume Throughput 6.4 Pressure loss 6.5 Maximum Flow Rate 6.6 Minimum Flow Rate |
| 20 | 6. 7 Rangeability 6.8 Swirl Effect 6.9 Velocity Profile Effect 6.10 Fluid Drag or Reynolds Number Effect |
| 21 | 6.11 Nonfluid Drag or Density Effect 6. 12 Gas Turbine Meter Accuracy Curve 6.13 Pulsation Effect 6.14 Temperature and Pressure Effects on Change of Meter Dimensions 7 DATA COMPUTATION AND PRESENTATION 7.1 Calculation Equations for Volumetric Flow |
| 22 | 7.2 Flowing Pressure Factor Fpf FIG. 6 ACCURACY CURVE OF A HIGH PRESSURE GAS TURBINE METER PLOTTED AGAINST REYNOLDS NUMBER (LINEAR SCALE) AT VARIOUS LINE PRESSURES WHERE ROTOR SLIP DUE TO NONFLUID DRAG IS INSIGNIFICANT |
| 23 | 7.3 Pressure Base Factor Fpb 7.4 Flowing Temperature Factor Ftf 7.5 Temperature Base Factor Ftb 7. 6 Compressibility Ratio s 7. 7 Calculation Equations for Mass Flow |
| 24 | 7.8 Determination of Calibration Factor 7. 9 Presentation of Calibration Data 8 CALIBRATION METHODS 8.1 General |
| 25 | 8.2 Bell Prover 8.3 Transfer Prover 8.4 Critical Flow Orifice Prover and Sonic Nozzle Prover 8.5 In-Line Orifice Meter 9 FIELD CHECKS 9.1 General |
| 26 | 9.2 Visual Inspection 9.3 Spin Time Test |
