Years ago there was a city bus somewhere that ran off of hydrogen. They
used liquid in a dewar, so it boiled off some every day. At least you don't
have a pressure issue.
-----Original Message-----
From: [email protected]
Sent: Friday, November 4, 2022 9:25 AM
To: 'AnimalFarm Microwave Users Group'
Subject: Re: [AFMUG] OT: Nasa Moon Rocket
Yeah I found a source on the web saying it's compressed to 3600-10,000 PSI
in a vehicle fuel tank, but not stored as liquid because it has to be
chilled to -270c to become liquid.
Still, any gas at 10,000 PSI sounds scary. A punctured tank would
decompress like a bomb. If there's an ignition source that must make an
impressive fireball. They must use some very rugged fuel tanks. I'll have
to trust that the engineers building these things are smarter than me.
-Adam
-----Original Message-----
From: AF <[email protected]> On Behalf Of Bill Prince
Sent: Friday, November 04, 2022 11:51 AM
To: [email protected]
Subject: Re: [AFMUG] OT: Nasa Moon Rocket
I don't think it's practical to liquefy it for hydrogen cars. At higher
temperatures, it's easier to make seals that work.
bp
<part15sbs{at}gmail{dot}com>
On 11/4/2022 8:30 AM, Nate Burke wrote:
But don't they have cars that run off Hydrogen? Do they all leak
too? I could be driving along next to leaky H-bomb on wheels?
On 11/4/2022 10:25 AM, Bill Prince wrote:
Hydrogen is hard to seal because (1) it's the smallest molecule, and
(2) It needs to be ridiculously cold to liquefy. That said, it is the
most energy-dense of the options.
but it's also why SpaceX uses kerosene or methane.
bp
<part15sbs{at}gmail{dot}com>
On 11/4/2022 8:12 AM, Nate Burke wrote:
I've only been reading articles in the local paper, why are they
having such a hard time plugging the hydrogen leaks? Back in
College I worked at Argonne labs, and we used lots of
helium/nitrogen for cryogenics. I don't remember having leaking
problems.
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