[PSUBS-MAILIST] Life support

[Sean T. Stevenson via Personal_Submersibles]

According to the ABS rules, per (11/35.3), you need sufficient oxygen
for the mission duration PLUS the 72 hour reserve.

Per (8/7.1), oxygen:  0.038 kg (0.084 lb) per hour, per person, at 1 atm.

x 72 hours emergency duration = 2.736 kg (6.032 lb) per person for 72 hours.

2.736 kg x (1000g/kg) x (mol O2/31.9988g O2) x (22.4 liters / mol O2) =
1915 liters (@ STP, ideal gas assumptions)

= 68 cubic feet oxygen per person for emergency reserve, additional
oxygen appropriate to mission duration.

Sean



On 2014-04-22 17:52, swaters via Personal_Submersibles wrote:
> I have been trying to make sure I have suffecent life support for 72
> hours per ABS. It seems like the research varys a little. 
> I am showing
> *80 cubic feet of O2 per person
> *23 lbs sodasorb per person
>
> Is this right?
> Thanks,
> Scott Waters
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