REYNOLDS DEPENDENCE OF FOUR DIFFERENT FLOW METERS USED FOR FEED WATER FLOW MEASUREMENTS

P. Klason, O. Büker, P. Lau, O. Penttinen, K. Mattiasson, T. Lederer, K. Tawackolianb, J. Frederiksenc, A. K. Niemannc, P. Milotad

Abstract

In the ‘Metrology for improved power plant efficiency’ project the Reynolds dependence of four flow meters used for feed water flow measurements were investigated. The four flow meters were ultrasonic, inductive, orifice plate and Venturi tube flow meter. The measurements were performed up to 90 °C to study the temperature dependence of the meters. An extrapolation model up to 230 °C was developed to measure the feed water flow with an uncertainty in the range of 0.3 % – 0.5 %. The influence of a double bend out of plane disturbance on the meters was also investigated. Some meters showed a significant dependence.

Keywords

flow meters, ultrasonic, inductive, orifice plate, Venturi, feed water flow, uncertainty

Download

IMEKO-TC9-2013-107.pdf

DOI

-

IMEKO TC

TC9 - Flow Measurement

Back to the proceedings