CENTAUR ROUND ROBIN TEST TRACEABILITY OF TRANSCANADA CALIBRATIONS FACILITY |
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| Umesh Karnik, Damian Flegel |
- Abstract:
- TransCanada Calibrations’ (TCC’s) new high pressure, large diameter calibration facility is designed to meet the needs of the changing natural gas industry. With year-around access to gas volumes in excess of 50,000 actual m³ / h, the TCC facility is designed to provide full range calibrations of flow meters ranging from 0.15 m (6 inch) to 0.75 m (30 inch) in diameter. In order to ensure that the facility meets user expectations of accuracy and repeatability, a round robin testing program was initiated by TCC.
The CENTAUR (Canadian, European, North American, Turbine And Ultrasonic, Round Robin) program was designed to provide established facilities with a 0.2 m (8 inch) diameter transfer standard package for calibration. The package, consisting of a turbine and ultrasonic meter in series with the associated piping, was calibrated at established facilities such as Bishop Auckland, Didsbury, GRIMRF, Groningen, pigsar TM , Westerbork and the TCC facility. This package is unique since it uses two devices, which operate on different principles. Past transfer standard packages have used, for example, two turbine meters in series.
It was concluded from the CENTAUR round robin program that the participating facilities are in good agreement to within ±0.25%. Based on the results of past round robin programs, this is an excellent outcome. It was also evident that the concept of using two meters with different operating principles can be successful if the test flow rates are optimum for both meters. With such an arrangement, it is possible to isolate installation effects at a facility.
The test results clearly show that the TCC facility is on par with the established facilities. The TCC facility was within -0.15 % from the average of all facilities and the facility claim to an uncertainty of ±0.2 % is certainly justified. - Keywords:
- calibration, CENTAUR, round-robin, TransCanada, traceability, turbine, ultrasonic
- Download:
- IMEKO-TC9-2000-007.pdf
- DOI:
- -
- Event details
- IMEKO TC:
- TC9
- Event name:
- FLOMEKO 2000
- Title:
- 10th Conference on Flow Measurement
- Place:
- Salvador, Bahia, BRAZIL
- Time:
- 04 June 2000 - 08 June 2000