m_exhaust m "Engine outlet exhaust flow rate at T_gas_in"
yNO y "Molar fraction of NO at reactor inlet"
NO2ratio 0.1 "NO2 to NO ratio in NOx at reactor inlet"
yNO2 yNO*NO2ratio "Molar fraction of NO2 at reactor inlet"
yO2 0.07 "Molar fraction of O2 at reactor inlet"
yH2O 0.1 "Molar fraction of H2O at reactor inlet"
yN2 1-yNO-yO2-yH2O-yNO2 "Molar fraction of N2 at reactor inlet"
n_exhaust m_exhaust/(MN2*yN2+MO2*yO2+MH2O*yH2O+MNO*yNO+MNO2*yNO2) "Molar flow rate of exhaust gas entering the reactor"
v_exhaust n_exhaust*R_const*T_gas_in/1[atm] "Volumetric flow rate of exhaust gas entering the reactor"
FH2O_in yH2O*n_exhaust "Molar flow rate of H2O entering the reactor"
FN2_in yN2*n_exhaust "Molar flow rate of N2 entering the reactor"
FO2_in yO2*n_exhaust "Molar flow rate of O2 entering the reactor"
FNO_in yNO*n_exhaust "Molar flow rate of NO entering the reactor"
FNO2_in NO2ratio*FNO_in "Molar flow rate of NO2 entering the reactor"
cH2O_in FH2O_in/v_exhaust "Concentration of H2O in gas entering the reactor"
cN2_in FN2_in/v_exhaust "Concentration of N2 in gas entering the reactor"
cO2_in FO2_in/v_exhaust "Concentration of O2 in gas entering the reactor"
cNO_in FNO_in/v_exhaust "Concentration of NO in gas entering the reactor"
cNO2_in FNO2_in/v_exhaust "Concentration of NO2 in gas entering the reactor"
cNOx_in cNO_in+cNO2_in "Concentration of NOx in gas entering the reactor"
ANR 1.3 "Ammonia to NOx ratio in gas entering the reactor"
FNH3_in ANR*(FNO_in+FNO2_in) "Molar flow rate of NH3entering the reactor"
cNH3_in FNH3_in/v_tot_in "Concentration of NH3 in gas entering the reactor"
mNH3_in FNH3_in*MNH3 "Mass flow rate of NH3 entering the reactor"
m_tot_in "m_exhaust + mNH3_in" "Total mass flow rate of gas entering the reactor"
v_NH3_in FNH3_in*R_const*T_gas_in/1[atm] "Volumetric flow rate of NH3entering the reactor"
v_tot_in "v_exhaust + v_NH3_in" "Total volumetric flow rate of gas entering the reactor"
mNOX_in (cNO_in*MNO+cNO2_in*MNO2)*v_tot_in "Mass flow rate of NOx entering the reactor"
MN2 0.028013[kg/mol] "Molar mass of N2"
MH2O 0.018015[kg/mol] "Molar mass of H2O"
MO2 0.031999[kg/mol] "Molar mass of O2"
MNO 0.030006[kg/mol] "Molar mass of NO"
MNO2 0.046006[kg/mol] "Molar mass of NO2"
MNH3 0.017031[kg/mol] "Molar mass of NH3"