Effect of shrinkage and mechanical wear of the adsorbent on the aerodynamic parameters of AU-1500 carbon adsorbers for ventilation systems of nuclearpower plants

A possible mechanism leading to a substantial increase in the aerodynamic r esistance of AU-1500 iodine carbon adsorbers used in the ventilation system s of nuclear power plants is examined. It is shown that the relatively smal l wear (several percent) of SKT-3 adsorbent granules with formation of a du st fraction can result in a substantial (ten-fold) increase of the aerodyna mic resistance of adsorbers. Possible reasons for the wear of an adsorbent and dust getting into an adsorber are given. 4 figures, 6 references.