OrbHab>SSI-List

Re: Habitat air composition
# 14448 byCombs, Mike on March 26, 2001, 9:55 a.m.
Member since 2022-08-22

Speaking of
'filler' gasses, what would space habitats do about
this? I've heard that they may just use oxygen and
pretty much have no flammable materials, but I find
that unlikely. Is it? O'Neill recommended an atmosphere around 1/2 sea level pressure, with the O2 percentage doubled, and the N2 reduced accordingly. That would significantly reduce the amount of N2 otherwise needed, but the air would still be over 1/2 N2. Savage and Zubrin make far less conservative assumptions, going for even less pressure and even greater O2 concentrations.

Regards,

Mike Combs

# 14449 byThomasKalbfus@... on March 26, 2001, 2:42 p.m.
Member since 2022-08-22

In a message dated 3/26/01 11:01:28 AM Eastern Standard Time,
mikecombs@... writes:

Speaking of
'filler' gasses, what would space habitats do about
this? I've heard that they may just use oxygen and
pretty much have no flammable materials, but I find
that unlikely. Is it?

O'Neill recommended an atmosphere around 1/2 sea level pressure, with the O2
percentage doubled, and the N2 reduced accordingly. That would
significantly reduce the amount of N2 otherwise needed, but the air would
still be over 1/2 N2.

Savage and Zubrin make far less conservative assumptions, going for even
less pressure and even greater O2 concentrations.

Regards,

Mike Combs
>>

I would go a 1 bar atmosphere especially with island 2 Bernal Spheres.