By Conducting an Analysis of the Measurement Errors It Was Found that Bubble Dynamics Obtained by Two-Point Probes Can Be Highly Inaccurate. a Four-Point Optical Probe with Appropriate Data Processing Algorithm Has Been Developed So that the Bubble Velocity Vector Can Be Obtained. This Probe Provides Directly the Value of Specific Gas-Liquid Interfacial Area. However, for Obtaining Accurate Values of Bubble Velocity and Size, the Four-Point Probe Must Be Calibrated by a CCD Camera at the Same Conditions. Calibration Columns Have Been Developed for This Purpose Where the Bubble Size and Velocity Can Be Varied to Calibrate the Measurements by the Four-Point Optical Probe Against a CCD Camera.
J. Xue et al., "Bubble Dynamics Measurements using Four-Point Optical Probe," Canadian Journal of Chemical Engineering, vol. 81, no. 3 thru 4, pp. 375 - 381, Wiley, Jan 2003.
The definitive version is available at https://doi.org/10.1002/cjce.5450810306
Chemical and Biochemical Engineering
Keywords and Phrases
Bubble column; Bubble measurements; Four-point optical probe
International Standard Serial Number (ISSN)
Article - Conference proceedings
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01 Jan 2003