On the structurization of coal dust precipitations and their influence on aerodynamic resistance by granulated mediums in air filters at nuclear power plants

TL;DR

This paper investigates how dust accumulates and affects airflow resistance in granular air filters with spherical and cylindrical granules, proposing improvements using chemical adsorbents for nuclear power plant filters.

Contribution

It introduces a detailed analysis of dust structurization in granular filters and explores the impact of granule shape and size on air resistance, suggesting enhancements with chemical adsorbents.

Findings

Dust distribution varies between spherical and cylindrical granules.

Dust accumulation influences air resistance differently based on granule shape.

Chemical adsorbents can improve filter performance.

Abstract

The processes of structurization of dust precipitations in granulated filtering mediums, formed by the monolithic glass spherical granules with the diameters of 2mm and 3mm, are re-searched. The distinctions between the distributions of filtered coal dust masses in the air filters with cylindrical granules and the air filters with spherical granules, are found. The influences by the filtered dust masses on the air resistance of both the air filters with the cylindrical granules and the air filters with the spherical granules are described. The conclusions on a possibility of the use of various chemical adsorbents with different geometric forms and volumetric dimensions to improve the filtering properties of granulated filtering mediums in air filters at nuclear power plants are formulated.