3 replies to this topic

[Said Salim]

Dear Expert, I am trying to conduct Gibbs Free Energy Direct Minimization Calculations using Excel spreadsheet.I am following the procedures published in the attached PDF file. However, I am facing a problem in the initial estimate described in the paper (Highlighted in Yellow). In fact,I'm not able to understand how the author is solving that problem and how to implement it in my excel file.

Attached Files

•  Gibbs Free Energy Minimization (SRK).pdf   149.35KB   53 downloads
•  Gibbs Free Energy Minimization (SRK).xlsx   17.19KB   42 downloads

[breizh]

Hi Salim,

 

http://cheguide.com/...uid-equilibria/

 

You may find similarities using this link  .

 

Good luck

Breizh

[Profe]

Hi Said.

 

Attached you find the Excel workbook with the corrections and some tips for get the solution.

That I think the problem has two answers: One answer is a local minimim, the other one is another minimum. Probably Both answers are ok, but thermodinamically maybe will be posible. This is not my best field.

 

I Think that will be useful

 

Good luck

 

Fausto

 

Attached Files

•  Gibbs Free Energy Minimization (SRK) II.xlsx   270.41KB   58 downloads

[Said Salim]

Thanks Breizh and Fausto for your response it your inputs have hlped me to resolve the problem.