Investigation of the Effects of Steam Injection on Equilibrium Products and Thermodynamic Properties of Diesel and Biodiesel Fuels

Table 6

Comparison of the present model results with the ones obtained from CEA of NASA and GASEQ software for equilibrium combustion products of methane at  = 1.2 and steam injection 10%.

= 1.2	Model results	GASEQ results	CEA results	GASEQ relative error (%)	CEA relative error (%)
CO2	0.063729	0.06368	0.06368	−0.077	−0.077
H2O	0.278173	0.27822	0.27822	0.017	0.017
N2	0.594799	0.59480	0.59480	0.00017	0.00017
O2	5.826 × 10^−8	5.78 × 10^−8	5.78 × 10^−8	−0.790	−0.790
CO	0.031138	0.03119	0.03119	0.168	0.168
H2	0.032106	0.03206	0.03206	−0.144	−0.144
H	2.988 × 10^−5	2.98 × 10^−5	2.98 × 10^−5	−0.260	−0.260
O	1.535 × 10^−8	1.53 × 10^−8	1.53 × 10^−8	−0.345	−0.345
OH	2.199 × 10^−5	2.95 × 10^−6	2.68 × 10^−6	2.679	2.57
NO	2.962 × 10^−6	2.95 × 10^−6	0.646096	−0.394	−0.394
(kJ·kg^−1·K^−1)	1.64592	1.63042	1.63042	−0.95	−0.95
Tin (K)	300	300	300	0.000	0.000
Tad (K)	1919.3	1919.3	1919.3	0.000	0.000