The Study of the Dynamics Limits of Gas Flow in the Connecting Channels of Agglomeration Apparatus
2024 IEEE Open Conference of Electrical, Electronic and Information Sciences (eStream)(2024)
Abstract
Ambient air quality is considered one of the indicators of a sustainable lifestyle. Traditional cleaning technologies based on gravitational, centrifugal, electrostatic, and other operating principles are not effective in removing ultra-fine solid particles, which are harmful to humans from the gas flow. Filters employing these methods can effectively capture particles larger than 1 µm, but efficiency of filtrating fine fractions from the gas stream is not sufficient. Fine particle pollutants of this type can be influenced by electric field agglomeration. After conducting thorough aerodynamic studies, a clearer understanding of flow dynamics will emerge. Specifically, the trajectories of solid particle movement and their velocities within the gas flow will be determined. These factors are crucial because the efficiency of particle agglomeration depends on them. Furthermore, the flow dynamics itself plays a significant role in increasing particle collisions. During this process, small particles coalesce into larger, singular particles that can be efficiently settled or removed from the gas stream using conventional cleaning technologies. In the study, aerodynamic drag and gas flow velocities were measured at various points of cross-section in inlet ducts at 12.4-174.3 m3/h and outlet ducts at 14.5-226.9 m3/h airflow. Additionally, the static pressure before and after the electric field agglomeration device was monitored. The static pressure at the inlet varied from 8 to 178 Pa and the maximum aerodynamic resistance was quantified at 175 Pa.
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Key words
particulate matter,agglomeration,airflow dynamics,gas flow
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