IEEE Access | |
Void Fraction Measurement in a Gas-Liquid Swirling Flow Using an Ultrasonic Sensor | |
Marco Jose Da Silva1  Cesar Yutaka Ofuchi1  Flavio Neves1  Henrique Krainer Eidt2  Rigoberto E. M. Morales2  Dalton Bertoldi2  | |
[1] Graduate Program in Electrical and Computer Engineering (CPGEI), Federal University of Technology-Parana, Curitiba, Brazil;Multiphase Flow Research Center (NUEM), Federal University of Technology-Parana, Curitiba, Brazil; | |
关键词: Swirling flow; void fraction; liquid film; wire-mesh sensor; ultrasound sensor; two-phase flow; | |
DOI : 10.1109/ACCESS.2020.3033425 | |
来源: DOAJ |
【 摘 要 】
In this article, we propose a novel ultrasonic technique to measure the gas void fraction in a liquid-gas intermittent swirling flow. The method converts the liquid film thickness measurement to a gas void fraction value considering a symmetrical flow pattern. We propose the use of the first echo peak instead of the standard maximum echo peak to estimate the liquid film thickness. The results are compared with a wire-mesh sensor, a reference for gas void fraction measurement, in a 1-inch inner-diameter vertical flow loop. A Root-Mean-Square-Deviation (RMSD) of 2.87% was observed between the proposed ultrasonic method and the reference sensor. An improvement of 6.06% if compared to the standard film thickness method (8.93%). The studied cases show that our method improves the use of ultrasound for gas void fraction measurement in a gas-liquid swirling flow.
【 授权许可】
Unknown