NDLI: Spectral Analysis of Line-Up Bubbles Flow Phenomena Using Electrical Impedance Signals in a Vertical Tube

Content Provider	IEEE Xplore Digital Library
Author	Soria Lopez, A. Rodriguez Sierra, J.C.
Copyright Year	2014
Description	Author affiliation: Depto. de Formacion Integral e Institucional, Guanajuato-IPN, Guanajuato, Mexico (Rodriguez Sierra, J.C.) \|\| Depto. de Ing. de Procesos e Hidraulica, Univ. Autonoma Metropolitana, Mexico City, Mexico (Soria Lopez, A.)
Abstract	The technique of spectral analysis for multiphase phenomena identification is based on the transformed in frequency domain of the electrical impedance signal. A sensor of variable size electrodes were used to measure electrical impedance signals caused by bubble trains in still water. The experiments have been performed in a vertical transparent pipe system. The spectral power density was correlated with observed phenomena through video recording, in order to show that low and middle frequency peaks can be associated to dynamic phenomena, while high frequency peaks could not be clearly correlated to flow particularities. Five characteristic range frequencies were identified: low-frequency large-amplitude and rising-energy, low-frequency middling-amplitude and rising-energy fluctuations, middle-frequency small-amplitude and decreasing-energy fluctuations, high-frequency small-amplitude and decreasing-energy fluctuations, high-frequency small-amplitude and constant energy fluctuation. Each frequency range was associated with the time domain and the individual peaks interpretation of the simultaneously observed phenomena by a video recording could be assessed.
Starting Page	163
Ending Page	167
File Size	714961
Page Count	5
File Format	PDF
ISBN	9781467367561
DOI	10.1109/ICMEAE.2014.37
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-11-18
Publisher Place	Mexico
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Electrodes Time-frequency analysis Fluctuations Liquids Electrical impedance sensor Two-phase flow Bubble column Frequency estimation Void fraction Electron tubes Impedance Spectral analysis
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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