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[sudeepns.197me025]

Hello All, 
Greetings! 

I am trying to simulate the Steam methane reforming reaction in Ansys chemkin. 

I have developed 
1. gas phase reaction files
2. surface reaction files
3. Thermodynamic data files
4. transport data file. 

This is a heterogeneous reaction. 

The above files successfully get imported to chemkin, but while running the simulation, I am getting the following error. 

" DASPK--  AT T (=R1) AND STEPSIZE H (=R2) THE                                    

      In above,  R1 =  0.3196622577504D-10   R2 =  0.7023828905648D-15

 DASPK--  ITERATION MATRIX IS SINGULAR.                                          

 

          SITE FRACTIONS AT REACTOR INLET CANNOT BE FOUND

 

          THE MATRIX OF PARTIAL DERIVATIVES MAYBE SINGULAR

 

          SEARCH FOR INLET SITE COVERAGE TERMINATED DUE TO ERROR(S)

 

          Attempting to proceed without solution of initial surface site fractions"

Kindly help me in resolving the issue. 

 

[Ren]

The error messages suggest that the reactor has not been set up fully (missing site fraction data). Please also check the following files for any warning or error messages:

chem.out, surf.out, tran.out

.out in the run directory.

Which reactor do you use?

What is the Chemin release number?