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Real-Time In-Situ Measurement of Slurry Concentration Distribution in Tanks

[+] Author Affiliations
Judith Ann Bamberger

Pacific Northwest National Laboratory, Richland, WA

Paper No. FEDSM2002-31076, pp. 97-101; 5 pages
doi:10.1115/FEDSM2002-31076
From:
  • ASME 2002 Joint U.S.-European Fluids Engineering Division Conference
  • Volume 1: Fora, Parts A and B
  • Montreal, Quebec, Canada, July 14–18, 2002
  • Conference Sponsors: Fluids Engineering Division
  • ISBN: 0-7918-3615-0 | eISBN: 0-7918-3600-2
  • Copyright © 2002 by ASME

abstract

Ultrasonic signals are well suited for characterization of multiphase fluid properties and flows. The signals are not degraded by noisy process conditions, can penetrate vessel and piping walls, and can be used to interrogate fluids and dense opaque suspensions. This paper presents a simple ultrasonic measurement application that shows the ability of ultrasonic sensors to measure slurry concentration during slurry mixing in tanks. Results from two experiments show the use of real-time measurements of ultrasonic signal attenuation to track the process of slurry mixing in situ and to track the ability to maintain a well mixed steady state condition. Comparison of means of the ultrasonic measurements with means obtained from discrete extractive measurements show that the distributions overlap and cannot be statistically distinguished.

Copyright © 2002 by ASME
Topics: Slurries

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