AERODYNAMIC ASPECTS OF IMPROVING ASPIRATION

This article presents a new design for a recirculated air supply unit for dust removal systems in transfer stations. The proposed unit utilizes the additional Coanda effect, which was first identified with the participation of the authors and occurs when several Coanda channels are arranged in series. Using this effect, the authors propose an innovative technology aimed at improving the aerohydrodynamic efficiency and energy savings of the dust removal system. The conditions and results of both numerical and field experiments are presented. Based on the experimental data, the most efficient operating modes and geometric parameters of the unit are determined, and recommendations for its use are provided. The developed technology is highly versatile and has potential for industrial application, particularly in industries requiring significant volumes of pumped air and high dust generation rates, such as in the metallurgical, construction, and manufacturing sectors. The results of the article open up broad prospects for the large-scale implementation of this technology in industries with existing industrial aspiration systems, taking into account the reduced energy consumption. The material presented in the article can serve as a basis for further engineering developments and the modernization of existing aspiration systems