Flowmeter installation effect in gases

Project Description

Measurement of the installation effects on the accuracy of turbine gas meters for flow rates up to 5.500 m3/h. The velocity and turbulence profiles in a duct DN = 200/250 will be measured using a 1 and 2-component diode laser LDA-system (non-intrusive technique).

The effects on velocity and turbulence profiles on a G2500/1600 turbine meter when installed downstream of various fittings with and without different flow straighteners have to be explored.

The recommendation "OIML R 32" and "DVGW 492II Arbeeitsblatt" are to be investigated and compared by detailed experiments using advanced miniaturized transient recorder based LDV-systems.

Further Information

The optical measuring techiques which are developed in EUROMET project 187 'Development of Miniaturized Optical Flowmeters' will be applied.

The project will later be extended to natural gases.

Flow (F)
Dr Dietrich Dopheide, PTB (Germany)
Fax: +49 531 592 4006
Coordinating Institute
PTB (Germany)
Participating Partners
NPL (United Kingdom)