Community Research and Development Information Service - CORDIS


The Ultraflow project was a joint industry project aimed at establishing the installation conditions necessary for multi-path ultrasonic flow meters operating on natural gas at high pressures. An extensive series of tests was performed, at five different test facilities, to demonstrate the effect of upstream disturbances, due to bends, step changes in pipe diameter and pressure reduction, on 6" and 12" meters operating at pressures in the range 10 to 60 bar. An important aspect of the project was the setting up of a separate and independent quality assessment team. The synthesis report on the project includes the results of the tests in both disturbed and ideal conditions. The disturbance test results are presented in the form of the error shift attributable to the disturbance, allowing its effect to be readily appreciated. The error shift ranged from zero for diameter steps to around +/- 3 % for the most extreme case of swirl tested depending on meter size and orientation. Values for the uncertainty due to the presence of various disturbances are proposed, together with the identification of a number of areas where additional work is desirable.

Additional information

Authors: WILSON M B, BP International Ltd., Sunbury-on-Thames (GB)
Bibliographic Reference: EUR 16175 EN (1995) 71 pp., MF, ECU 4
Availability: (2)
Record Number: 199510475 / Last updated on: 1995-03-22
Original language: en
Available languages: en