Hello everyone!(adsbygoogle = window.adsbygoogle || []).push({});

I am trying to design a magnetic testing apparatus that needs to remain at -196K for 20 minutes. There is not exactly a straight foreword equation to get a calculation for the evaporation rate of liquid nitrogen. The apparatus looks like this, and I have highlighted the area where the nitrogen will be located:

The calculations that I have have been using are as follows:

Is this equation accurate? Any advice would be appreciated.

Equation source: http://en.wikipedia.org/wiki/Accidental_release_source_terms

Thank you!

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Evaporation Rate of Liquid Nitrogen: xpost from ME

Can you offer guidance or do you also need help?

Draft saved
Draft deleted

Loading...

**Physics Forums | Science Articles, Homework Help, Discussion**