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Oxygen

Are we developing a air compressor which can divide O2 from the rest of atmosphere at least we dont have to cary O2 for the time the crew stands on mars?

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Submitted by Belt of Orion 2 years ago

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    2 years ago
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    2 years ago

Comments (9)

  1. Yes research is happening. It can be done but not easily - requires a lot of power and the atmosphere is very thin.

    2 years ago
  2. Is it enough oxygen in martian atmosphere?

    2 years ago
    1. Not sure.

      1 month ago
  3. I think NASA should do some tests on the surface of mars before/with the

    manned mission in 2030, for producing Oxygen O2, Water H2O,

    http://rtreport.ksc.nasa.gov/techreports/2001report/100/106.html

    and for Rocket Propellant on Mars

    4H2 + CO2 --> CH4 + 2H2O or 2 CO2 --> CO + O2

    http://en.wikipedia.org/wiki/In-situ_resource_utilization

    The Mars Surveyor 2001 with MIP on board was canceled sadly,

    to find out if it is possible to produce

    oxygen from the atmosphere of Mars.

    http://marsjournal.org/contents/2006/0005/files/SandersDuke2005.pdf

    http://www.lpi.usra.edu/meetings/robomars/pdf/6098.pdf

    But its cool MSL got a RAD on board so we will know after the 6. Aug.,

    how much radiation there will be on mars surface,

    lets hope it´s only a little, tiny or nothing at all would be great.

    This will be a great advantage, to know for sure how much radiation

    we got there on the surface of mars, so fingers cross or a lot of prayers

    on the 6. Aug. landing.

    2 years ago
  4. I seriously doubt there's enougth air pressure or Oxygen content in the air to do this. Given how low the gravity is only the ultra light elements like Hydrogen and Helium are gonna stick around as a gas in any great quantity. Added to that the fact that Oxygen is soooo reactive and not only is there a lot on Mar's for it to react with but also that Mar's has no EM shield so there's a lot of extra enegry pouring it to fuel those reactions and your actually talking about a pretty hostile enviroment for O2. If there is a 0xygen source on Mar's then it's the ice at the poles, or hopefully, some underground water, but dont hold your breath for that last one.

    Oh and Cold Blood, while your chemistries sound for earth surface conditions there's no garantee those elements will combine into those chemical compounds at Mar's pressure, temperature and gravity. They probably will, but we can't be sure. Even something as simple as which way a planet rotates can have a dramatic effect on it's chemistry and the more we're learning about how electrons create bonds under certain conditions the more we're begining to realise that the same two elements in the same quantities dont always create the same compound. And that gets even more complicated when you factor in the latest discoveries about how there's no such thing as an inert substance and that oxygen isn't the powerfullest oxidiser out there. NASA not only need to get those experiment arrays up and running, they need to repeat them at diffrent locations to make sure the chemistry there is as uniform as it appears here on earth.

    2 years ago
    1. Yes, thanks Ross. You are right it won´t be as easy as on earth.

      I did not think about, we need to repeat the the experiments

      at different locations and maybe in different mars seasons, too ?

      Oh that is hard, space never wanna make it easy on us,

      but I hope we will send these experiments to mars,

      because it is the 1st step of a new great technology,

      will make things so much easier and not so expensive,

      much more save also for the future

      of manned / deep space missions where is NASA focusing on at the moment.

      These experiments would be one of the most important advantages,

      we can have in the next 20 - 50 years in small scale functioning systems maybe,

      or I´m to optimistic ?

      Are the Roscosmos , ESA and JaXa experimenting on these technologies

      and got results and/or concepts anyone knows ?

      2 years ago
  5. @Belt of Orion

    u have got a really good idea but will it be power efficient as well as cost efficient...

    1 year ago
  6. There are oxygen concentraters used in the medical community to produce nearly pure O2 from room air, though I doubt the atmosphere on Mars would concentrate quite as easily. What about separating oxygen from water?

    1 year ago
  7. OKAY, so here's my idea,

    A massive airbag greenhouse base of operations.

    Imagine interlocking joints of metal or kevlar or whatever rigid material that can handle being on the surface of Mars, as a sort of skeletal ribcage which is webbed by a bendy, super strong, pliable plastic.

    Such as this perhaps:

    http://www.sciencedaily.com/releases/2007/10/071004143114.htm

    Two astronauts at first, and the joints only extend enough to create a small greenhouse where the two astronauts live. Of course there would be a unit attached to the airbag structure which would serve as the main base; computers, toilets, bedrooms, kitchen, gym, rec room, etc, would all be in this unit.

    The now essentially colonists of Mars would fill the airbag with plants and simulate an earth environment. Where oxygen is produced by the plants. Large cannisters attached to the unit should be filled with other gases useful for creating optimum living conditions for the astronauts.

    Filters could also be set up to suck in and extract the gases from the thin layer of Mars' atmosphere.

    http://en.wikipedia.org/wiki/Atmospheric_moisture_extraction

    As time went on, the joints would extend further and further and the airbag would fold out to cover a larger area, more astronauts would arrive, more plants, more deliveries of gas, etc.

    Think of how you could use this project for the future of Mars, In 100 years you could extend the airbag into an immense biodome at the centre of the largest colony on Mars with a bustling population, research centres, test labs, manned vehicle expeditions onto the surface, a spaceport, etc.

    8 months ago