The effect of canister geometry on the effectiveness of removing carbon dioxide with a constant mass of soda lime
Louden, Peter Eric
Pucci, Paul F.
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An investigation was conducted of the effect of canister geometry on the effectiveness of a constant mass of a commercial soda lime, Sodasorb, to absorb carbon dioxide from a mixture of carbon dioxide and air. A comparison of cylindrical canisters with length-to-diameter ratios of 0.15, 0.29, 0.44, 0.80, 1.16, and 2.125 was completed with a constant mass of three pounds of Sodasotb. Annular ring baffles and disk baffles were employed to get a more evenly distributed usage of the Sodasorb with the results compared to the 'straiht' through type canisters for the above L/D ratios. A steady flow rate of approximately 2.1 SCFM of saturated air with six percent carbon dioxide at one atmosphere and environment temperature of 70 degrees F was used. It was found that annular ring baffles and disk baffles increased the effectiveness significantly.
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