Study of Aerosol Particle Coagulation in an Ultrasonic Scrubber Chamber

Abstract: This paper presents the results of the study of the monoammonium phosphate aerosol particles coagulation in the model ul trasonic scrubber chamber. The behavior of aerosol particles inside the chamber was investigated at the distance of 100 and 400 mm from the ultrasonic emitter with radiation frequency of 22 kHz. The reported results showed that virtually no particle coagulation occurs at a sound pressure intensity of 140 dB while the process of active coagulation proceeds at 150 dB for the selected sample. The initial weight concentration of ammonium phosphate in the chamber was 1 g m–3. Data on the aerosol dispersed composition displayed that coagulation proceeds more intensively in the region of 400 mm. After 30 min exposure to sound the value of the average volume-surface diameter of the aerosol particles in the chamber has changed by 238.4%. © 2023, Pleiades Publishing, Ltd.