Random engineering question (cryogenic plant)

Maybe

Tree Fiddy gpm, +/- a bit.

I realize you can use them as pressure builders, but this one doesn't seem to be so. They either feed it with 2500 psi liquid or 5000 psi liquid to replenish storage tanks at those pressures. I see a rating on the pump (gpm) and a rating on the vaporizer (gpm), but nothing associated with output other than pressure.

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What temperature and specific gravity? Nighttime or daytime? Summer or winter?

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LN2 at -320F, vaporizer sized to convert it all to gas. Pumping that LN2 in under pressure will achieve the same flow out in GN2 under the same pressure...I just don't see any way to assume otherwise.

No engineer or expert in cryogenics but does it follow the perfect gas law? If so, you have to have a temperature change for it to be vaporized. If the temperature was increased and the pressure remains the same, then the volume must change.

Note: I am a dimwit could be completely wrong.

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If you pump LN2 into a vaporizer at 10 gpm at 5000 psi, do you get out 10 gpm GN2 at 5000 psi (assuming everything is sized correctly)?

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are you saying that if you pump liquid nitrogen into a vaporizer, will you get a gas nitrogen?

Yeah, I think that's what a vaporizer does. But is it really a gas, or is it Vapor? Could be a trick question.

N2 conversion

There will be some pressure drop through the vaporizer at different flowrates but depends on the sizing / design pressure drop of the vaporizer. Most of the units that I have worked with have the main gas pressure reducing valve and downstream PSV downstream of the vaporizer. The liquid will expand a lot when it is vaporized.

What exactly are you trying to figure out? Just call your N2 supplier vendor for help and the vaporizer design info. Number of tubes, length of tubes, and gas flowrate all go into the pressure drop calculation.

uhhhhh yes? maybe? 60% of the time.