Long term operational experience of turbine meters

摘要

The gas turbine meters are widely used for custody transfer measurement of large gas flows. The meters are usually calibrated with atmospheric air and with natural gas at operating pressure. The accuracy of the meter proved by calibration may be as high as 0.3%in the limited range. Will the meter maintain this accuracy during the operation? rnThis paper describes the operational experience gained with turbine meters on the border metering station in Hungary and makes an attempt to answer this question. rnThe strange behaviour of the meters during the first year of operation will be shown. Results of the regular serial tests indicate some "break in" period for the turbine meters. rnAfter the "break in" period the balance of the pipeline indicates excellent agreement between the metering results of two stations and consequently the good stability and accuracy of the turbine meters.