Monday, February 21, 2011

CrazyEngineers Forum - Chemical & Metallurgy Engineering

CrazyEngineers Forum - Chemical & Metallurgy Engineering

CrazyEngineers Forum - Chemical & Metallurgy Engineering

Joule-Thomson Cooler - Temp/Mass flow rate

Posted: 20 Feb 2011 07:18 PM PST

Hello engineers
I need some help and advice! (I do my internship and I got this task to do. I need it soon, but I got stucked…)

I am creating some kind of Joule-Thomson cooler.
Conditions: I have pure Nitrogen in a closed tank under 6000 psi pressure and 190 deg C. When we open the valve the gas will flow in the pipe and cool down by Joule-Thomson effect.

I know that temperature change depends on the pressure drop.
So my question is: How can I calculate the Temperature change as a function of Flow Rate (pressure drop per second) for my conditions (6000psi, 190 degC)?!

I was searching it in some books and internet, but I could find any formula how to do it.
As far I understand, we need to find Joule-Thomson coefficient at 6000psi, 190degC right?

Thanks to everybody for any help in advance!
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