Optimization of Combustion Characteristics of Blended Coals Based on TOPSIS Method

Table 3

Performance index of mixed coals with different proportions.

Program	Xiaolongtan : Zhaotong : Fuyuan	Flammability index C × 10^−7	Comprehensive combustion characteristic index S × 10^−10	Burnout temperature /°C	Economic cost S/yuan per ton
1	1 : 1 : 1	35.95	3.37127	700	383
2	0 : 1 : 2	30.90	2.39214	706	490
3	0 : 2 : 1	28.15	2.08380	718	380
4	1 : 0 : 2	32.77	3.72810	711	493
5	1 : 2 : 0	38.25	3.23677	683	273
6	1 : 2 : 2	28.80	2.50959	698	404
7	2 : 0 : 1	30.88	3.06333	680	387
8	2 : 1 : 0	43.77	4.59559	689	277
9	2 : 1 : 2	51.48	5.57101	690	406
10	2 : 2 : 1	32.39	2.79062	720	340