Coal Heating Value Calculator
Coal Heating Value
Calculate the heating value and energy content of coal based on rank, moisture content, ash content, and sulfur percentage.
Formula
Effective BTU/lb = Base BTU x (1 - Moisture - Ash); Total Energy (BTU) = Effective BTU x Tonnes x 2204.62 lbs/tonne; Energy (GJ) = Total BTU x 0.001055 / 1000; CO2 = Tonnage x Combustible Fraction x Carbon Content x 3.667
Frequently Asked Questions
What is coal heating value?
Heating value (calorific value) is the amount of energy released when coal is burned, measured in BTU per pound or megajoules per kilogram. It determines how much useful energy can be extracted from a given quantity of coal.
How do moisture and ash affect coal quality?
Moisture and ash are non-combustible components that reduce the effective heating value. A coal with 10% moisture and 10% ash can only burn 80% of its mass as fuel, significantly lowering its energy output per ton.
What coal rank has the highest heating value?
Anthracite has the highest heating value at about 14,000 BTU/lb, followed by bituminous (12,000-13,000), sub-bituminous (8,000-10,000), and lignite (5,500-7,500 BTU/lb).
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