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Mass fraction measurements in multiphase flows using a clamp-on PVDF array
Luleå University of Technology, Department of Computer Science, Electrical and Space Engineering, Signals and Systems.ORCID iD: 0000-0002-6216-6132
2000 (English)In: Proceedings: 2000 IEEE Ultrasonics Symposium : October 22 - 25, 2000, Hotel Caribe Hilton, San Juan, Puerto Rico ; an international symposium / [ed] Susan C. Schneider, Piscataway, NJ: IEEE Communications Society, 2000, 471-474 p.Conference paper, Published paper (Refereed)
Abstract [en]

In this paper we present a method for the measurement of mass fractions of iron ore in two-phase flows consisting of water and iron ore particles. The proposed method uses a clamp-on PVDF transmitter and a 12-element PVDF receiver array to measure the excess attenuation of pulsed ultrasound due to the presence of particles. From the measured data we are able to extract a quantity that varies linearly with particle mass fraction in the range from 0 to 13%. With the proposed method we can measure the mass fraction in whole percent, at a 95% confidence level. Using an array of receivers we are also able to calculate an attenuation profile over a cross section of the flow, which indicates how the particles are distributed within the flow. This is used to examine how the particle distribution is affected by flow speed, flow meter position, and mass fraction, respectively.

Place, publisher, year, edition, pages
Piscataway, NJ: IEEE Communications Society, 2000. 471-474 p.
National Category
Signal Processing
Research subject
Signal Processing
Identifiers
URN: urn:nbn:se:ltu:diva-30866DOI: 10.1109/ULTSYM.2000.922595Local ID: 4d89b3b0-677b-11db-8cbe-000ea68e967bISBN: 0-7803-6365-5 (print)OAI: oai:DiVA.org:ltu-30866DiVA: diva2:1004095
Conference
IEEE Ultrasonics Symposium : 22/10/2000 - 25/10/2000
Note
Godkänd; 2000; 20061029 (ysko)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2017-11-25Bibliographically approved

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