RE: [PSUBS-MAILIST] A slight different life support approach.

[irox <irox@ix.netcom.com>]

Hi Emile,

my 'first pass' life support calcs are here:
http://projectpetra.org/wiki/tiki-index.php?page=LifeSupportSystem

I need to go over them again and finish the scrubber calcs.  I
also want to toss in the 'plant' based life support calcs if I can
find reliable data on the CO2/O2 exchange that those plants are
doing.

They could be other issues with plants, such as increased humidity
in the pressure vessel.  Or, if there is an excess of CO2 (beyond
what the humans expel), say from a soda being opened/drank, then
the plants may use the extra CO2 and increase the O2 level above
normal.  An excessive levels of O2 could lead to added fire hazard.

Cheers,
  Ian.



-----Original Message-----
>From: Emile van Essen <emile@airesearch.nl>
>Sent: Mar 24, 2009 1:42 PM
>To: personal_submersibles@psubs.org
>Subject: RE: [PSUBS-MAILIST] A slight different life support approach.
>
>Ian
>
>Its is sure nice to have on a long range or houseboat-sub. Feels more like
>home;-)
>Which consumption did you calculate? A human at test consumes only 0,2
>litres/ min.
>
>Emile
>
>-----Oorspronkelijk bericht-----
>Van: owner-personal_submersibles@psubs.org
>[mailto:owner-personal_submersibles@psubs.org] Namens irox
>Verzonden: dinsdag 24 maart 2009 2:06
>Aan: personal_submersibles@psubs.org
>Onderwerp: [PSUBS-MAILIST] A slight different life support approach.
>
>
>A TED talk on using plants for indoor oxygen generation:
>http://www.ted.com/index.php/talks/kamal_meattle_on_how_to_grow_your_own_fre
>sh_air.html
>
>This is kind of interesting, I wouldn't suggest it could replace
>and normal submarine life support system, but in a larger sub
>it might be used to augment the life support system.  Although,
>even for a large sub, four plants each 5 foot tall per person
>might be too much - although I quite like the idea of plants
>in the sub.
>
>I know it's kind of "cookie", but figured I'd post it anyway. ;)
>
>Ian.
>
>
>
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