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(OP)
Hi,
how much saturated steam required for vaporize of 1m3 liquid nitrogen.
if steam temp.-150 degree and pre.-3.5 kg/cm2

This is a very elementary Engineering problem. Are you a degreed Engineer?

Good luck,
Latexman

To a ChE, the glass is always full - 1/2 air and 1/2 water.

Latexman is right. This is an elementary problem involving whatever heat transfer and thermodynamics that you may have studied during your engineering school days.

Go ahead..remove the collecting dust on your textbooks !... ...Look at the problem again and you may be able to solve it by yourself

What am I missing here: steam at -150 degree and pressure at -3.5kg/cm2; and how is the N2 contained and separated from steam? I don't believe that the OP had thermo and heat transfer courses.

It appears that the dash is not a negative sign but a simple hyphen.
Besides, kg/cm^2, as a measure of pressure, still appears on some eastern european manometers.
Steam at those conditions is slightly superheated.

As far as I know, based on the engineering school I came from, OP would have studied at least one course of heat transfer and some basic thermo in his engineering school which should be enough for him to solve this problem of an elementary nature....Hence OP needs to pick up those books of that course again...

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