finding flowing Z and flowing K (spec.ht. ratio) for mixed gas?

[MMahan]

I have some very old copies of some literature (tables) titled 'Universal Oil Products Company P952.4 dated 3/26/65. I used these over 25 years ago for determining flowing 'Z'(compressibility factor)and flowing 'K'(specific heat ratio)of mixed gas streams based on Tr and Pr, for the purpose of control valve sizing. I was hoping to find new electronic copies of these, with definitions of the terms "(CP-C*P)/R" and "(CP-CV)/R" or at least these definitions. Alternatively, maybe a new source for similar info. Please, help, I have been looking for some time now without success. I know how to calculate the Molecular Weight and Tr and Pr for the mixed streams.

 

[gerhardl]

You could try to search this whole site (as I did -using the topline bar search engine) and come up with some indications.

Thread-244590 seems to give something?

..or you could try posting in other forums