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

Table 13

Comprehensive optimization scheme of each index.

Sequence no.	Mass ratio (%)			Combustible index × 10^−7	Combustion performance index × 10^−10	Burnout temperature (°C)	Investment cost (¥/t)	Degree of expectation
	Xiaolongtan lignite	Yiliang tobacco stem	Fuyuan bituminous coal
1	100.00	55.12	1.00	43.3574	4.19875	678.112	251.688	0.885
2	100.00	55.64	1.00	43.4866	4.14176	678.332	251.534	0.885
3	99.58	55.12	1.00	43.3305	4.32126	678.862	251.378	0.884
4	99.37	56.37	1.00	43.4927	4.38726	678.375	250.023	0.885
5	98.22	56.81	1.00	43.3993	4.32462	678.562	251.638	0.884
6	97.62	56.13	1.00	43.2784	4.14324	679.012	251.868	0.883
7	96.88	57.66	1.00	43.2642	4.14389	679.326	250.658	0.881
8	95.79	67.86	1.00	43.9873	4.19868	685.465	241.678	0.872
9	100.00	35.87	1.32	39.9855	3.96782	670.483	266.714	0.843
10	100.00	46.02	36.83	43.0117	4.15865	692.821	322.933	0.804
11	100.00	36.33	100.00	46.9865	5.19546	682.757	438.268	0.793
12	100.00	35.05	100.00	48.0963	5.29232	682.962	439.393	0.793
13	99.27	36.78	100.00	47.6752	5.18383	682.878	439.887	0.794
14	100.00	33.89	87.279	45.8892	4.98712	690.009	420.653	0.788
15	100.00	41.02	71.43	44.5671	4.53527	692.656	386.848	0.782