Older Mathcad file conversion

[pstory]

I have some old Mathcad files I downloaded.  The are Peng Robinson based files and would do bubble point pressure, dewpoint pressure and temperatures.  They can be useful, but I have no means to update the files to the present Mathcad.

[AndyWesterman]

Converted to Prime 2: best tyo check the performance against known data to ensure no oddities.

regards

Andy

[mnori]

Is there any guideline to use these files, e.g.( for azeotropic mixtures, for mixture with components with very different boiling point ? ), because it seems to me that their usage is not straightforward.

Furthermore there are similar files also for LLE calculations?

[VladimirN]

The following links can be useful for you:

• MATHCAD WORKSHEETS -- Chemical and Engineering Thermodynamics 3rd Edition (This area contains the Mathcad worksheets discussed in the third edition of Chemical and Engineering Thermodynamics by S.I. Sandler.);
• Peng-Robinson Equation of State .

[mnori]

Thank you Vladimir,

In extending the files to calculate all the bubble-dew curves as basis for VLE data fitting , and I found some  convergence issues.