Coal

F. Type of Coal: SUB-BITUMINOUS , Classification according calorific power system A.S.T.M.

Analysis of extracted samples.

a) Humidity...Average 28.48%

b) Volatile...Average 33.59 %

c) Ash ...Average 15.69%

d) Coal ...Average 37.82 %

e) Sulfur ... Average 03.00 %

f) Hydrogen ...Average 03.00 %

g) Nitrogen...Average 00.97 %

h) Oxygen ...Average 09.69 %

I) Btu/Lb. ... Average 16,468

j) MMF BTU/lb. Average 8,234

G. Calorific Power Conversion:

1) Extracted sample: 3,800 a 4,000 Kcal. /kg. Average
2) Minimum benefits: 4,500 Kcal. /Kg. Average
3) 1 BTU = .252 Kcal.

3,800 / .252 = 15,079 BTU / kg. = 6,839 BTU / lb.
4,500 / .252 = 17,857 BTU / kg. = 8,100 BTU / lb.
4) 1 kWh = 3,412.2 BTU:
4,419 kW / ton
5,233 kW / ton ~ 65%

USA COAL REFERENCE: 8,141 KW/ton ~ 100%
Vitrinite reflection Average of   0.34 a 0.37

Coal Sub-bituminous for power Plant fuel