Molar fraction, X, in Cantera: dry or wet basis?

[Francisco Mesquita Guimarães]

Hello everyone,

I would like to know if the molar fraction presented by Cantera is written on a dry or wet basis. I've looking for an answer on the site but I couldn't find anything about it.

How do I change it between dry or wet basis?

I need to show the emissions at the outlet of a plug flow reactor and I would like to make a chart with values of the dry molar faction in ppm.

This is how I’m writing it:

ppmMolarFractionVectorNO = statesPFR.X[:-1,gas.species_index('NO')]*1.e6

ppmMolarFractionNO[j][i] = ppmMolarFractionVectorNO[-1]

Thank you in advance for the help.

Hope you had a holly Easter!

Francisco M. G.