Method and device of determination of the interfacial area in a two-phase mixture comprising a gas phase in the discharge in the form of bubbles

摘要

Method of determination of the interfacial area in a volume containing a two-phase mixture comprising a liquid phase 3a and a gaseous phase in the discharge in the liquid phase in the form of bubbles 3. / p & & p & will determine, for a same path of a series of trains of ultrasonic waves 15, 18 issued a constant amplitude, in this volume, the mean ratio of the maximum amplitudes of the wave trains receipts after crossing of the two-phase mixture and after crossing of the liquid phase only, and it conveys the ratio thus determine a calibration curve 1 tracee experimentally and giving the value of the interfacial area as a function of this ratio. / p & & p & application is the determination of the contact surface between the gas bubbles and the liquid phase by unit of volume in a two-phase medium gas -.