Journal of Combustion

Research Article

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

Table 5

Comparison of the present model results with the ones obtained from CEA of NASA and GASEQ software for equilibrium combustion products of methane at = 0.6 and steam injection 10%.


= 0.6	Model results	GASEQ results	CEA results	GASEQ relative error (%)	CEA relative error (%)

CO₂	0.051506	0.05154	0.05151	0.066	0.066
H₂O	0.233920	0.23399	0.23385	0.029	0.029
N₂	0.645559	0.64553	0.64553	−0.005	−0.005
O₂	0.068353	0.06827	0.06827	−0.122	−0.122
CO	1.328 × 10⁻⁷	1.33 × 10⁻⁷	3.27 × 10⁻⁷	−0.157	−0.157
H₂	2.419 × 10⁻⁷	2.41 × 10⁻⁷	2.41 × 10⁻⁷	−0.360	−0.360
H	1.269 × 10⁻⁹	1.27 × 10⁻⁹	1.27 × 10⁻⁹	0.03	0.03
O	1.506 × 10⁻⁷	1.50 × 10⁻⁷	1.50 × 10⁻⁷	−0.429	−0.429
OH	3.263 × 10⁻⁵	3.39 × 10⁻⁵	3.39 × 10⁻⁵	3.751	3.751
NO	6.278 × 10⁻⁴	6.27 × 10⁻⁴	6.27 × 10⁻⁴	−0.126	−0.126
(kJ·kg⁻¹·K⁻¹)	1.46488	1.45383	1.45383	−0.76	−0.76
T_in (K)	300	300	300	0.000	0.000
T_ad (K)	1482.3	1482.3	1482.3	0.000	0.000