Why CO2?

[Septic343]

I was thinking about this the other day and i was wondering...

why do the pneumatic flippers use CO2 gas? Is it because you can get more force out of it than other gases or something? I'm not really an expert on these sorts of things.

[typhoon_driver]

At 1000psi it is a liquid and so is easier to store in a compressed form. Nitrogen needs a higher pressure I believe

[Liftoff]

Thats right, liquid nitrogen is more in the range of 10000psi .... imagine the weight of a tank able to contain that!

[Flag Captured]

I'd assume that, derivative of that, it's the safety too in case one of them gets a puncture - I'm no expert but if Liquid CO2 is 1000 psi and Liquid Nitrogen is 10,000 psi, the latter's going to go with a significantly larger bang...

[typhoon_driver]

http://blogs.howstuffworks.com/2009/...quid-nitrogen/

Nitrogen won't liquefy at any pressure at room temperature

[psychostorm]

Best energy density changing from liquid to gas, easier to engineer, cheap to replace, not flammable & not a greenhouse gas.

[maddox10]

Best energy density changing from liquid to gas, easier to engineer, cheap to replace, not flammable & not a greenhouse gas.

Oh, CO2 not a greenhouse gas?

[psychostorm]

Oh, CO2 not a greenhouse gas?

I'm thinking of Ozone Depleting Substances. CO2 doesn't deplete Ozone.

It's been a few years since since I studied the greenhouse effect. Apparently, we're all screwed anyway so I try not to think about it.

[leorcc]

not a greenhouse gas.

Lolwhut?

[Septic343]

Thanks Guys