3 ms·
Okay...but shouldn't there be a spec'ed range for that tank's pressure, and a non-trivial head space (vapor being quite compressible, liquid not) - so that the
by bell-cot 3y ago
Okay...but shouldn't there be a spec'ed range for that tank's pressure, and a non-trivial head space (vapor being quite compressible, liquid not) - so that the valve would operate in some sort of briefly_open / closed_for_a_while / briefly_open / closed... slow & steady pattern?
- bediger4000 3y agoI'm sure that's desired. But staying inside a range is always difficult, and cryogenic temperatures probably make it harder, both for valve materials and things like water in air freezing on the valve or ice clogging vents. I'm told liquid hydrogen actually is somewhat compressible, and metals change properties when cold, so room temp and pressure physical intuition may mislead.