Physical features of small disperse coal dust fraction transportation and structurization processes in iodine air filters of absorption type in ventilation systems at nuclear power plants

TL;DR

This study investigates how small disperse coal dust particles are transported and form structures within iodine air filters in nuclear power plant ventilation systems, providing insights for optimizing filter design.

Contribution

It offers new quantitative data on coal dust distribution and physical processes in granular filters, aiding in the design optimization for nuclear plant ventilation systems.

Findings

Coal dust distribution varies along the filter surface.

Physical origins of dust accumulation are identified.

Quantitative characteristics for filter optimization are provided.

Abstract

The research on the physical features of transportation and structurization processes by the air-dust aerosol in the granular filtering medium with the cylindrical coal adsorbent granules in an air filter of the adsorption type in the heating ventilation and cooling (HVAC) system at the nuclear power plant is completed. The physical origins of the coal dust masses distribution along the absorber with the granular filtering medium with the cylindrical coal granules during the air-dust aerosol intake process in the near the surface layer of absorber are researched. The quantitative technical characteristics of air filtering elements, which have to be considered during the optimization of air filters designs for the application in the ventilation systems at the nuclear power plants, are obtained.