Research Article
A Complex Evaluation and Optimization Approach for Oxygen-Enriched Combustion Characteristics of Blended Fuels Based on Response Surface Methodology
Table 4
The confidence of the two equations for comprehensive combustion characteristic index.
| Factor | Parameter estimation | Degree of freedom | Standard deviation | 95% confidence interval lower control limit | 95% confidence interval upper control limit | Significant factor |
| Value | 8.97 | 1.00 | 0.83 | 6.73 | 10.76 | ā | Oxygen concentration, A | 5.31 | 1.00 | 0.77 | 3.37 | 7.32 | 1.12 | Heating rate, B | 9.95 | 1.00 | 0.91 | 8.26 | 11.88 | 1.12 | AB | 4.83 | 1.00 | 1.02 | 2.26 | 7.27 | 1.12 | A2 | 1.47 | 1.00 | 1.03 | ā1.28 | 4.31 | 1.03 | B2 | 3.94 | 1.00 | 1.15 | 1.08 | 7.06 | 1.03 |
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