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Experimental study of oxygen diffusion coefficients in clean water containing salt, glucose or surfactant: Consequences on the liquid-side mass transfer coefficients

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Academic year: 2021

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Fig. 1. Experimental set-up used for measuring oxygen diffusion coefficients: (1) double-wall vessel, (2) oxygen micro-probe Unisense ® , (3) acquisition system, (4) ther- ther-mometer, (5) thermo-regulation, (6) magnetic agitator, (7) gas flowmeter, (8) n
Fig. 2. (a) Illustration of a train of bubbles generated. (b) Experimental set-up used for measuring the liquid-side mass transfer coefficients associated with the latter train of bubbles: (1) pressure gauge, (2) gas flow meter, (3) electronic manometer, (
Fig. 4 compares, for various salt (NaCl) concentrations, the oxy- oxy-gen diffusion coefficients obtained in the present study and the following ones reported in the literature:
Table 2 and Fig. 5 compare the variations of oxygen diffusion coefficients with concentrations for each type of synthetic media.
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