BS ISO 2715:2017
$189.07
Liquid hydrocarbons. Volumetric measurement by turbine flowmeter – Volumetric measurement by turbine meter systems
| Published By | Publication Date | Number of Pages |
| BSI | 2017 | 48 |
This document describes and discusses the characteristics of turbine flowmeters. Attention is given to the factors to be considered in the application of turbine meters to liquid metering. These include the properties and nature of the liquid to be metered, the correct installation and operation of the meter, environmental effects, and the wide choice of secondary and ancillary equipment. Aspects of meter proving and maintenance are also discussed.
This document is applicable to the metering of any appropriate liquid. Guidance is given on the use of turbine meters in the metering of two-component liquid mixtures such as water and oil.
It is not applicable to two-phase flow when gases or solids are present under metering conditions (i.e. two-phase flow). It can be applied to the many and varied liquids encountered in industry for liquid metering and is not restricted to hydrocarbons.
Guidance on the performance expected for fiscal/custody transfer applications for hydrocarbons is outlined.
This document is not applicable to cryogenic liquids, such as liquefied natural gas (LNG) and refrigerated petroleum gas. It does not cover potable water applications.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | National foreword |
| 7 | Foreword |
| 8 | Introduction |
| 9 | 1 Scope 2 Normative references 3 Terms, definitions, symbols and abbreviated terms |
| 10 | 3.1 Terms and definitions |
| 13 | 3.2 Symbols and units 4 Design and operation of turbine flowmeters 4.1 Basic characteristics and mode of operation |
| 14 | 4.2 Output signal |
| 16 | 4.3 Pressure loss 5 Performance aspects 5.1 General 5.2 Factors affecting meter performance 5.3 General performance characteristics |
| 18 | 5.4 Pressure drop and back-pressure considerations 5.4.1 Pressure loss |
| 19 | 5.4.2 Flashing and cavitation |
| 20 | 5.5 Flow profile 6 Liquid property effects 6.1 General 6.2 Effect of viscosity |
| 21 | 6.3 Universal viscosity curve |
| 24 | 6.4 Effect of temperature 6.5 Effect of pressure 6.6 Lubricity and liquid cleanliness |
| 25 | 6.7 Two-phase flow 6.8 Two-component operation 6.9 Pulsating and fluctuating flow |
| 26 | 7 System design 7.1 Design considerations |
| 27 | 7.2 Selection of turbine meter 7.3 Ancillary equipment 7.3.1 General |
| 28 | 7.3.2 Mechanical accessories 7.3.3 Secondary electronic instrumentation 7.4 Flow algorithms |
| 29 | 8 Installation aspects 8.1 General |
| 30 | 8.2 Installation pipework 8.2.1 Effect of bends 8.2.2 Effect of valves 8.2.3 Reducers and expanders |
| 31 | 8.2.4 Step in the pipe 8.2.5 Minimizing installation effects 8.3 Valves |
| 32 | 8.4 Flow pulsation 8.5 Electrical installation |
| 33 | 8.6 Pulse security 9 Environmental considerations 9.1 General 9.2 Electrical interference 9.3 Humidity 9.4 Safety |
| 34 | 10 Calibration 10.1 Proving and verification 10.2 General considerations 10.3 Proving conditions 10.4 Proving methods |
| 35 | 10.5 Proving frequency 11 Operation and maintenance 11.1 General 11.2 Initial start-up 11.3 Meter maintenance |
| 36 | 11.4 System diagnostics and control charts |
| 38 | Annex A (informative) Specification of performance |
| 45 | Bibliography |
