Module 1: Fuels characterization and energy balance
  Lecture 3: Exercises of analysis and calorific value
 

(6) Compare the gross and net calorific value on moist and dry basis of (a) bituminous coal and (b) anthracite coal. The compositions are

Bituminous coal (wt %)

Anthracite coal (wt %)
Carbon
78
84
Hydrogen
5
1.9
Oxygen
4.5
4
Nitrogen
1.2
0.6
Ash
7
6.7
Moisture
4.3
2.8

Solution...