Fuels and Combustion
As the equilibrium moisture content of the coal increases, its

Calorific value increases
Swelling number increases
Bulk density decreases
Swelling number decreases

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Fuels and Combustion
A good metallurgical coke

Should have high porosity
Should have low fusion point of its ash
Should be brittle
Must contain moderate quantities of ash, moisture, sulphur and volatile matters

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