Abstract
The article describes a method for ultrasonic coagulation of suspended fine particles in the air gap between a flat radiator and reflector. Using the developed experimental stand, the efficiency of coagulation was investigated at various distances between the radiator and the reflector. During the experiments, the presence of a peak value in the dynamics of the coagulation process at a distance of 14 mm (which corresponds to 1 wavelength of ultrasonic oscillation in air at an operating frequency of 25 kHz) was revealed. It is shown that at this distance the maximum efficiency of ultrasonic coagulation is achieved, which is 95 %, and the level of sound pressure reaches its maximum equal to 132 dB.
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