The New Semi-Experimental Method for Simulation of Turbine Flow Meters Rotation in the Transitional Flow

Authors: J. Tonkonogij, A. Pedišius, A. Stankevičius

Abstract:

The new semi-experimental method for simulation of the turbine flow meters rotation in the transitional flow has been developed. The method is based on the experimentally established exponential low of changing of dimensionless relative turbine gas meter rotation frequency and meter inertia time constant. For experimental evaluation of the meter time constant special facility has been developed. The facility ensures instant switching of turbine meter under test from one channel to the other channel with different flow rate and measuring the meter response. The developed method can be used for evaluation and predication of the turbine meters response and dynamic error in the transitional flow with any arbitrary law of flow rate changing. The examples of the method application are presented.

Keywords: Dynamic error, pulsing flow, numerical simulation, response, turbine gas meters.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1062168

References:

[1] W.F.Z. Lee, M.J.Kirik, B.Millington. Gas turbine flow meter measurement in pulsating flow. Eng. Power, Trans. ASME. 1975, October, pp 531-539.
[2] N. Lehmann. Dynamisches Verhalten von Turbinenradgaszahlern, Das Gas und Wasserfach -GWF- 131 1990 Nr.4 Gas Erdgas, s 160-167.
[3] Technische Richtlinien Messgeräte für Gas (PTB) G13, 1994-12.
[4] N. Atkinson K. A software tool to calculate the overregistration error of a turbine meter in pulsating flow, Flow Meas. Instrum. 1992, 3 No 3, pp 167-172.
[5] ISO/TR 3313:1998(E) Measurement of fluid flow in closed conduits - Guidelines on the effects of flow pulsations on flow-measurement instruments.
[6] R. J. McKee. Pulsation effects on single- and two rotor turbine meters, Flow Meas. Instrum. 1992, 3 No 3, pp 151-166.
[7] B. Lee, R. Cheesewright, C. Clark The dynamic response of small turbine flow meters in liquid flows, Flow Meas. Instrum. 2004, 15 No 5- 6, pp 239-248.
[8] A. G. Guchmð░n, A.A. Guchmð░n, ðÉ. ðÉ. Zaitsev. Generalized analysis. - M.: Factorial Press, 1998.- pp.304
[9] C. R. Sparks R. J. McKee. Method and apparatus for assessing and quantifying pulsation induced error in gas turbine flow meters. - US patent Number 5,481,924, Jan.9, 1998.- pp.304
[10] P. P. Kremlevskiy. Flow meters and substance quantity meters. Reference book. Part One. - S.-Pb.: Politechnika, 2002.- p.297.