The acentric factor (ω) can be calculated from:
ω =-LOG10(P0.7/Pcr)-1
where P0.7 is the saturation pressure at a temperature that is 0.7xTcr, Tcr and Pcr are values of the absolute temperature and pressure at the critical state. Refrigerants R407C and R410A are zeotropic. Using the above formula I get:
For R407C: ω=0.365
For R410A: ω=0.31
Do we have better estimatios?
Reference
https://en.wikipedia.org/wiki/Acentric_factor
Hi Dear Mohamed
find the attach pdf page that involves another method for estimation of
acentric factor.
best regards
Mohammad Olfati
Dear Mohammad
Good morning and thanks a lot.
This is very helpful and I hope to be able to return the favour.
Mohamed
Dear Mohamed El-Awad
You can use this link:
http://www.thermopedia.com/content/287/
With best regards
Mostafa
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