Well, normally. But in this case I was trying to come up with a method
to protect the inside of the ship from hydrogen gas leaking coming in
from the outside of the ship when it is deep in a gas giant atmosphere.
In that situation you cannot vent to the outside because the pressure
outside is too high.
However, maybe you could collect extra hydrogen from your life support
systems and force it back out of the ship. Sort of like venting but
using some kind of high pressure pumping system. It'd have to pump it
out at a higher pressure than the gas giant trying to force it in.
On 5/26/11 6:02 PM, Susan Koziel wrote:
From: Zan Lynx [email protected]
On 5/26/11 5:31 PM, Anthony Jackson wrote:
On 5/26/2011 4:02 PM, David Scheidt wrote:
No, but a double hull gives your internal systems and crew a margin
before they need to worry too muc about hydrogen inflitration.
You don't have a double hull; you've got liquid hydrogen only one hull
away.
Which should be about the same hazard as standing in the same room with a
liquid hydrogen storage tank. In other words, not much because
the leakage rate is pretty low. The liquid form leaks at a much slower rate
than the gas form.
If you could manage to get a metastable metallic form, it wouldn't leak at all.
High TL required for that I am sure.
Not knowing anything about engineering but having worked with liquid nitrogen a
fair bit wouldn't the issue about leakage be cured by putting in high pressure
venting valves that vented to space? Thus would keep the pressure between the
two hulls constant and alway venting in one direction?
(of course the inner hull would have to be made like a pressure vessel and
damage to the inside could cause leaking into the inner hull).
-Sue
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