The formula of calorific value of coal

                                            The formula of calorific value of coal

The high calorific value of coal calculation formula is:
Qgr, AD = Qb, AD - 95 - sb, AD - aQb, AD
Type:
Qgr, AD - analysis of high calorific value of coal samples, J/g;
Qb, AD - analysis of the barrel of calorific value of coal samples, J/g;
Sb, AD - by barrel lotion measured the sulfur content of coal, %;
95 - each 1% (0.01 g) of sulfur in coal correction, J/g;
A - nitrate correction coefficient.
Qb, AD 16700 j/g, or less a = 0.001
16700 j/g < Qb, AD < 25100 j/g, a = 0.0012
Qb, AD > 25100 j/g, a = 0.0016
When the Qb, AD > 16700 j/g,
Or 12500 j/g < Qb, AD < 16700 j/g, at the same time, Sb, AD 2% or less,
St are available, and the AD instead of Sb, the AD.
The calculation of the low calorific value of coal
Qnet, AD = Qgr, AD 0.206 Had 0.023 Mad
Type:
Qnet, AD - analysis of coal samples of low calorific value, J/g;
Qgr, AD - analysis of high calorific value of coal samples, J/g;
Yudhoyono - hydrogen content analysis of coal samples, %;
Mad - moisture analysis of coal samples, %.