R1234ze(E) Surface Tension

[dcawley15]

There appears to be an error in the REFPROP 10 data file R1234ZEE.FLD for the surface tension model. The file seems to cause REFPROP to only use one of the two terms given in the publication in the surface tension equation even though both terms appear in the data file. I assume this is a bug?

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?Mulero, A. and Cachadiña, I.,
? "Recommended Correlations for the Surface Tension of Several Fluids
? Included in the REFPROP Program,"
? J. Phys. Chem. Ref. Data, 43, 023104, 2014.
? doi: 10.1063/1.4878755
?
!```````````````````````````````````````````````````````````````````````````````
0.                 !
10000.             !
0.                 !
0.                 !
1                  !Number of terms in surface tension model
382.51             !Critical temperature used in fit (dummy)
 0.06158   1.281   !Sigma0 and n
-0.8247    6.505

[marciahuber]

Yes, you found a bug! You can fix it by changing the 1 in the line for number of terms in the surface tension model to 2, or if you are uncomfortable doing that, send an email to REFPROP@nist.gov and an updated file can be emailed to you. Thanks for finding this.