A simple capacitance sensor for void fraction measurement in two-phase flow

A simple capacitance sensor for void fraction measurement in two-phase flow

An inexpensive and simple capacitance sensor has been developed for void fraction measurement of two-phase flow of gases and liquids in cylindrical channels. The sensor causes no flow disturbances and the output is independent of channel diameter. The sensor is especially suitable in terms of sensit...

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Veröffentlicht in:Ind. Eng. Chem. Fundam.; (United States) 1982-05, Vol.21 (2), p.175-181
Hauptverfasser: Shu, Ming T, Weinberger, Charles B, Lee, Young H
Format: Artikel
Sprache:eng
Schlagworte:
ENGINEERING
FLUID FLOW 420400 > Engineering-- Heat Transfer & Fluid Flow
MEASURING INSTRUMENTS
MONITORING
TWO-PHASE FLOW
VOID FRACTION
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Beschreibung
Zusammenfassung:An inexpensive and simple capacitance sensor has been developed for void fraction measurement of two-phase flow of gases and liquids in cylindrical channels. The sensor causes no flow disturbances and the output is independent of channel diameter. The sensor is especially suitable in terms of sensitivity for void fraction measurement in annular flow. The governing electromagnetic equations are solved to give predictive relationships between void fraction and sensor signal, and the predictions agree with the experimental results. 13 refs.
ISSN:0196-4313
1541-4833
DOI:10.1021/i100006a013