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. >>> >> > > -- AF mailing list [email protected] http://af.afmug.com/mailman/listinfo/af_af.afmug.com -- AF mailing list [email protected] http://af.afmug.com/mailman/listinfo/af_af.afmug.com
