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Mathematical Model of Absorption of Carbon Dioxide by Rescue Breathing Apparatus Scrubber.
MISSING :9 pages
The Bureau of Mines developed a mathematical model for analysis of the impact of scrubber bed length, porosity, and gas flow rate on the absorption of co2 in a breathing apparatus. The model accounts for the decrease in available absorbent through chemical conversion. The predicted efflux of co2 from a canister containing lioh compared favorably with measured values reported elsewhere. It was determined from a computational study that the time for breakthrough of co2 at a prescribed level is nearly directly proportional to bed length and inversely proportional to gas flow and porosity.
IH; Report of Investigations;
Page last reviewed: September 2, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division