Searching \ for '[OT[ sPACE sTATION - Pot Hydroxide spill from Oxyg' in subject line. ()
Make payments with PayPal - it's fast, free and secure! Help us get a faster server
FAQ page: www.piclist.com/techref/io/serial/spis.htm?key=spi
Search entire site for: '[OT[ sPACE sTATION - Pot Hydroxide spill from Oxyg'.

Exact match. Not showing close matches.
PICList Thread
'[OT[ sPACE sTATION - Pot Hydroxide spill from Oxyg'
2006\09\18@123645 by Russell McMahon

face
flavicon
face
What would be fairly low key in a ground installation was probably
"rather more exciting" in space:

Not quite "Houston, we have a problem ..." but ...

   "Russian Commander Pavel Vinogradov, US astronaut Jeffrey Williams
and European Space Agency astronaut Thomas Reiter noticed the problem
when they smelled burning rubber and saw some smoke. They put on
protective masks, goggles and gloves and activated an alarm to begin
emergency procedures to isolate the ventilation system.

Ground controllers believe a rubber gasket on the generator
overheated, producing the smoke and odour.


       http://www.newscientistspace.com/article/dn10104

They call it an "oxygen generator"
Picture:

       http://www.newscientistspace.com/data/images/ns/cms/dn10104/dn10104-2_600.jpg

Potassium Hydroxide spillage suggests it's a CO2 scrubber.



       RM

2006\09\18@124908 by Howard Winter

face
flavicon
picon face
Russell,

On Tue, 19 Sep 2006 04:22:51 +1200, Russell McMahon wrote:

> http://www.newscientistspace.com/data/images/ns/cms/dn10104/dn10104-2_600.jpg

Good grief, shouldn't the wiring be a bit neater in a space station?

Cheers,



Howard Winter
St.Albans, England


2006\09\18@130413 by Wouter van Ooijen

face picon face
> Potassium Hydroxide spillage suggests it's a CO2 scrubber.

The text says it produces O2 by splitting water, so I think it is an
electrolysis thingy. NaOH is  IIRC the most convenient solution to
electrolyse for O2 production.


Wouter van Ooijen

-- -------------------------------------------
Van Ooijen Technische Informatica: http://www.voti.nl
consultancy, development, PICmicro products
docent Hogeschool van Utrecht: http://www.voti.nl/hvu


2006\09\18@141419 by Tamas Rudnai

face picon face
Jeeez! I always wanted to be an astronaut (even Orbit is installed on my PC
to practise space flying :-) but looking at the pictures, I do not want to
be anymore :-)

Tamas


On 18/09/06, Wouter van Ooijen <spam_OUTwouterTakeThisOuTspamvoti.nl> wrote:
{Quote hidden}

> -

2006\09\18@222704 by Sergey Dryga

face picon face
Wouter van Ooijen <wouter <at> voti.nl> writes:

>
> > Potassium Hydroxide spillage suggests it's a CO2 scrubber.
>
> The text says it produces O2 by splitting water, so I think it is an
> electrolysis thingy. NaOH is  IIRC the most convenient solution to
> electrolyse for O2 production.
>
> Wouter van Ooijen
>


I would have thought that just for the safety they would use sodium chloride
for electrolysis.  In case of a spill all one gets is some salty water.
What do they do with "extra" H2 they generate? Just went out to space?

Sergey Dryga


2006\09\19@015632 by Wouter van Ooijen

face picon face
> I would have thought that just for the safety they would use
> sodium chloride for electrolysis.

That produces (at least some) Cl2, not exactly safe.

Wouter van Ooijen

-- -------------------------------------------
Van Ooijen Technische Informatica: http://www.voti.nl
consultancy, development, PICmicro products
docent Hogeschool van Utrecht: http://www.voti.nl/hvu


2006\09\19@054019 by Sergey A.Dryga

face picon face
Wouter van Ooijen <wouter <at> voti.nl> writes:

>
> > I would have thought that just for the safety they would use
> > sodium chloride for electrolysis.
>
> That produces (at least some) Cl2, not exactly safe.
>
> Wouter van Ooijen
>
Depends on voltage applied to the electrolysis cell.  I believe it is possible
to select voltage to not have Cl2 made.  Electrochemical potentials of Cl- and
OH- sufficiently different AFAIR.

Sergey Dryga



More... (looser matching)
- Last day of these posts
- In 2006 , 2007 only
- Today
- New search...