Joule-Thomson Coefficient for air

[plrbb]

I am trying to determine the temperature of air in a compressed air distribution sytem after a pressure reducing control valve. The air should cool to the J-T effect but cannot locate data for the the J-T coefficient for air in the 0 to 100 degrees C range.

 

[TD2K]

Perry's 6th edition, page 2-133 has this data. It's easier for me to email you a copy than trying to recopy it here, please drop me your email address either here or at testdog2000@yahoo.com

 

[25362]

As TD2K says Perry VI has a table.

For 0, 25, 50, 75 and 100 Celsius -->:


1 atm 0.2745 0.2320 0.1956 0.1614 0.1355
20 atm 0.2580 0.2173 0.1830 0.1508 0.1258

 

[Productmanager]

We are using the table provided by the NIS for nitrogen it should give you sufficiently close values