ISO/CD 17089-3

Measurement of fluid flow in closed conduits — Ultrasonic meters for gas — Part 3: Meters for emission monitoring and reporting associated with flaring and venting

Scope

Supporting the emerging global rules and regulations on emission monitoring covering flaring and venting, a specific and unique application of ultrasonic flowmeters which brings a unique set of challenges (as rangeability of 1:4000, low pressure, large pipe, contamination, varying composition, wet / saturation)
- Is focusing on Ultrasonic flow meter technology only – with three staged approach:
1- starting with Actual Volumetric flow rate (primary measurement)
2- followed by Standard volumetric flow rate (adding secondary measurements like, T, P and Z)
3- and finally with emissions in CO2 eq per hour (adding tertiary measurement) in liaison with ISO/TC67/SC9
- Aims to develop a type approval specific for ultrasonic flowmeter technology – as it covers the majority of the flare measurement market. (next to thermal and venturi)
- Starting with improving the actual volumetric flow rate (low hanging fruit such as installation effects, Reynolds effects, calibration, CFD)