Relationship between Particle Size Distribution of Low-Rank Pulverized Coal and Power Plant Performance

Table 1

Raw coal quality data (as received).

	Ash	Moisture	Volatile	Sulfur	Fixed carbon	kJ/kg (BTU/lb)	HGI*
Test 3	11.7	27.2	34.3	0.21	26.9	16,907 (7275)	34
Test 4	10.2	28.7	34.3	0.19	26.8	16,865 (7257)	31
Test 5	11.9	25.2	35.2	0.22	27.7	17,309 (7448)	31
Test 6							32
Test 7							33
Test 8							31
Test 9	12.7	27.5	31.2	0.20	28.3	16,331 (7027)	37
Test 10	12.2	27.4	31.7	0.19	28.7	16,479 (7091)	34
Test 11	11.8	27.5	32.2	0.19	28.5	16,633 (7157)	36
Test 12	12.3	27.5	32.0	0.21	28.2	16,461 (7083)	36
Test 13	13.5	27.5	31.3	0.21	27.8	16,349 (7035)	36
Test 14	12.3	27.0	31.6	0.22	29.2	16,747 (7206)	34
Test 15	11.4	27.3	32.4	0.22	28.9	16,954 (7295)	32
Test 16	12.7	27.1	32.3	0.21	28.0	16,540 (7117)	33
Test 17	14.0	27.2	31.7	0.19	27.1		35
Test 18	13.9	27.2	32.3	0.19	26.7		35
Test 19	13.6	26.6	32.3	0.20	27.5		36
Test 20	12.3	26.1	33.1	0.18	28.5		36
Test 21	14.1	28.2	30.8	0.20	27.0		40
Test 22	12.8	28.3	31.2	0.20	27.7		40
Test 23	13.8	29.3	32.5	0.21	24.5		39
Test 24	13.3	31.3	31.8	0.20	23.6		37
Test 25	11.4	37.2	29.5	0.18	21.8		35
Test 26	13.4	29.0	33.2	0.20	24.4		36

*Hardgrove grindability index.