A Complex Evaluation and Optimization Approach for Oxygen-Enriched Combustion Characteristics of Blended Fuels Based on Response Surface Methodology

Table 5

The variance of burnout temperature with different models.

Source of variance	Quadratic sum	Degree of freedom	Mean square	F-value	Probability > F	Scheme selection
Average value	3.173 × 10^6	1	3.173 × 10^6
Linear model	33677.22	2	16838.61	32.26	<0.0001
2FI	3987.65	1	3987.65	26.82	0.0004
Quadratic equation	838.42	2	419.21	6.33	0.02271	Recommended
Cubic equation	128.92	2	64.46	1.08	0.37528	Poor
Residual deflection	2.96	5	0.59
Grand total	2786.25	13	214.33