Sensitivity coefficient with respect to rate coefficients

In flame calculations:

where F is a target value.
S is computed by the Chemkin code.

For non-flame calculations we use two-side finite-difference formula:

In flame calculations:

where is computed by the Chemkin code.

For non-flame calculations:

The following temperatures were used in the calculations of sensitivity coefficient with respect to heats of formation:

• For shock tube and reactor experiments - initial temperature
• For low pressure flame experiments (N chemistry) - temperature at the peak of the CH or CN concentration
• For flame speeds - 1000 K

For all calculations = 1000 cal.