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Re: [PSUBS-MAILIST] oxygen use



Thanks people for your imput its been helpful.
Gives me a better idea on what space to allow for.
Alan.
----- Original Message -----
Sent: Monday, April 27, 2009 11:05 PM
Subject: Re: [PSUBS-MAILIST] oxygen use

My calculations said 3 hours per pound. Phil figures 4 hours per pound. That's per person per hour. Call it 20 pounds for three+ days to be generous. That's 9 kilos.
Vance


-----Original Message-----
From: ALAN JAMES <alanjames@xtra.co.nz>
To: personal_submersibles@psubs.org
Sent: Sun, 26 Apr 2009 6:10 pm
Subject: Re: [PSUBS-MAILIST] oxygen use

Thanks Jon, great stuff. 
You mention using clear canisters and an indicating chemical in the scrubber design. 
Is this a separate chemical you can add to the absorbent? I have 20kg of Sofnalime 
which is non indicating and would like to change that. 
Also I calculated that at 1/2 a liter of O2 consumption a scrubber would last 200 minutes per 
kg of absorbent. I seem to remember that ABS recommended 3 days air supply on a one man sub. 
Does this mean they expect me to take down 20kg of absorbent? 
Thanks Alan 
 
----- Original Message ----- From: "Jon Wallace" <jonw@psubs.org
To: <personal_submersibles@psubs.org
Sent: Monday, April 27, 2009 5:38 AM 
Subject: Re: [PSUBS-MAILIST] oxygen use 
 

> Frank (and others), 

> CO2 Scrubber slides are posted in HTML format on my project page now. 
> http://www.psubs.org/projects/1234567801/co2scrubber 

> Jon 



 




>  
 
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