Re: [PSUBS-MAILIST] CO2 absorbant efficiency

[Jon Wallace <jonw@psubs.org>]

Thanks Phil.  When I wrote my slide set I had to rely on published 
content from various medical sources because I didn't have actual 
testing capability, so it doesn't surprise me that the numbers I came up 
with are somewhat conservative.  Also, it seems obvious now that the 
soda lime product I selected was rather low-performance.  I probably 
picked that one because "100" was just a nice round number to work with.

Jon


Phil Nuytten wrote:
> Jon:
> Probably worthwhile to note that the numbers I used were not 
> calculated or interpolated from other data - they are actual, measured 
> numbers taken from an extensive series of trials with the 'Newtsuit' 
> ADS. The testing took place in a high pressure hyperbaric facility 
> with chill tank capability. The scrubber material used was 
> 'High-Performance Sodasorb' manufactured by Dewey & Almey Labs. The 
> cannisters were fitted with Co2 sensors at several locations so that 
> the absorbent bed 'break-through' could be anticipated and precisely 
> measured. The results confirmed tests that we carried out several 
> years previously on the Oceaneering International Inc., 'Wasp' ADS in 
> both Farnborough and Alverstoke, UK. 
> The 'Newtsuit' test reports were submitted and accepted as part of the 
> life-support system classification by Lloyds surveyors. 
> Phil




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