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Influence of Bubble‐Surface Contamination on Instantaneous Mass Transfer
Author(s) -
Huang Jie,
Saito Takayuki
Publication year - 2015
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201500056
Subject(s) - bubble , chemistry , mass transfer , centroid , volume (thermodynamics) , moment (physics) , mechanics , surface (topology) , contamination , pulmonary surfactant , vortex , dissolution , analytical chemistry (journal) , physics , classical mechanics , chromatography , thermodynamics , geometry , ecology , biochemistry , mathematics , biology
The relationship between instantaneous mass transfer, bubble motions, and bubble‐induced surrounding liquid motions is discussed on the basis of precise measurements in time and space. The influence of bubble‐surface contamination on the above is considered quantitatively through comparison with those in a purified system. The bubble's surface motion, centroid motion, volume, and surface area were acquired precisely from moment to moment using two high‐speed cameras and an own innovative image processing method. The dissolution process of CO 2 was visualized via the laser‐induced fluorescence/8‐hydroxypyrene‐1,3,6‐trisulfonic acid (LIF/HPTS) method. Combining these experimental results carefully, the effects of the surfactant on the mass transfer, bubble motions, and vortex mechanism are discussed.