每年出版 6 期
ISSN 打印: 1940-2503
ISSN 在线: 1940-2554
Indexed in
A NUMERICAL STUDY ON DETERMINATION OF TEMPERATURE CORRECTION FACTOR OF TEMPERATURE SENSOR MOUNTED ON ULTRASONIC FLOWMETER
摘要
In the present study, an effort is made to find out the temperature correction factor (TCF) for the measurement of fluid temperature in the transit time ultrasonic flowmeter. Coupled multidomain simulations are carried out for different flowmeter sizes, velocities, and flow, and ambient temperature. Flow analysis of a 24-inch flowmeter is performed and five methodologies are developed: average method, two-sensor method, three-sensor method, two-variable regression method, and three-variable regression method. Using other flowmeter size flow analysis, values of TCF are computed. Thus initial and final errors are calculated. The three-sensor method turns out to be the best methodology, as TCF using the three-sensor method gives the minimum absolute final error. This study proves to be very significant to customize temperature sensors on an ultrasonic flowmeter, as it eliminates the sensor mounting dependency at a conventional position (1/3 of the internal diameter).
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