ULTRASONIC PRE-TREATMENT FOR ENHANCED AIR FILTRATION IN PHARMACEUTICAL CLEANROOMS
Ключові слова:
ultrasonic pre-treatment, acoustic agglomeration, CFD, ANSYSАнотація
High-efficiency filters such as HEPA and ULPA are widely used but face challenges related to cost, pressure drop, and service life. The RESPIRATION project, implemented under the Horizon 2020 programme, addresses this issue by introducing ultrasonic pre-treatment before the filtration stage. The method relies on acoustic resonators embedded in the airflow path to induce agglomeration of PM2.5 and smaller particles, making them easier to capture and reducing the load on final filters. A novel simulation approach was developed to model ultrasonic emitter behaviour and sound field propagation using ANSYS software. The multi-module framework included Modal and Harmonic Acoustic analyses, with CFD implementation through boundary condition transfer. The proposed method enables more accurate energy distribution modelling and supports the design of scalable, energy-efficient pre-filtration units.
Посилання
Zhang X. et al. An efficient strategy to enhance air filtration through the synergistic effects of ultrasonics and seed particles // Separation and Purification Technology. 2025. Vol. 353. P. 128600. 10.1016/j.seppur.2024.128600
Korobiichuk I. et al. Determination of regularities that influence the acoustic pressure and accuracy of inertial sensors // Ultrasonics. 2024. Vol. 136. P. 107169. 10.1016/j.ultras.2023.107169
