Coal proximate analyses, including sulfur and CV, are the most common coal tests performed on coal shipments to power plants, all around the world. Many significant coal related costs and performance indicators can be calculated from this simple coal test. These are shown below:
Fuel Cost
Fuel Cost in  $/MBtu = $Cost /ton / (2 x Btu/lb/1000)
Sulfur Emissions
SO2/MBtu = 20,000 x % Sulfur / Btu/lb
Ash Loading
Lbs Ash/MBtu = % Ash / (Btu/lb/10,000)
Moisture Loading
Lbs Moisture/MBtu = % Moisture / (Btu/lb/10,000)
Reactivity
Lbs Volatile/MBtu = % Volatile / (Btu/lb/10,000)
Combustion Air
Lbs Air/hr = Heat Input (MBtu/hr) x 925 Lbs Air/MBtu for 20% Excess Air
Heat Rate
Coal Flow Lbs/hr x Btu/lb / KW/hr
Can’t Do
Ultimate, CHNO, Net CV, Boiler Eff, Air to fuel ratio, Dulong and other Btu/lb calculations, Other reactivity related to ultimate type testing.