"Lee Jay" wrote in message
ups.com...
André wrote:
Lee Jay had uiteengezet :
Well, I guess the subject says it all!

Lee Jay

That will be scrubbed with (help me guys) lythium hydroxide filters.

Just found some info on the ISS. See ECLSS here. The ISS does the
same thing.

http://www.tsgc.utexas.edu/archive/c...ns/skylab.html

I was thinking that Lithium Hydroxide would be way too heavy
for such long-duration missions but had not heard of this
approach before. I'm not sure what the orbiter does but there
was a reference to doing this on it as well.

There are actually two systems on ISS to remove CO2 that do not involve
disposable LiOH cartridges.

Russian: Vozdukh
US: CDRA

If you Google around a bit, you'll no doubt find information on how these
work.

This page has three links to diagrams of the Vozdukh system and its control
panels:

http://suzymchale.com/mks/lss-iss.html

Here's a PDF which contains some info on CDRA:

http://www.precision-combustion.com/...2%20Sorber.pdf

Skylab used a molecular sieve to separate CO2 out of the air.

http://www.tsgc.utexas.edu/archive/c...ns/skylab.html

Jeff
--
"They that can give up essential liberty to obtain a
little temporary safety deserve neither liberty nor
safety"
- B. Franklin, Bartlett's Familiar Quotations (1919)