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ar as received basis | ad air dried basis | d dry basis
Specific Energy Conversions
For conversions between units
1 btu/lb = 0.002326 mj/kg
1 kcal/kg 0.0041868 mj/kg
1 metric ton (tonne) 1.10231 short tons
From GAR to NAR
The difference between net and gross as received (NAR v/s GAR) specific energy values is the latent heat of the water vapour which lowers the effective calorific value in the boiler. To convert from GAR to NAR for bituminous coals subtract approximately
1.09 mj/kg
260 kcal/kg
470 btu/lb
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Coal Basics
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Select a term from the list
=coal that includes TOTAL MOISTURE, ASH, VOLATILE MATTER, and FIXED CARBON
A laboratory test designed to simulate the loss of coke through reaction in the reducing atmosphere, as the coke makes its way down the blast furnace. Coke is heated up to 950°C in an inert atmosphere and held at that temperature in an atmosphere of carbon dioxide. The coke is cooled down under the inert atmosphere and the loss in weight expressed as a percent is the reactivity.
