Fuels and Combustion
Bomb calorimeter is used to determine the (where, GCV - Gross Calorific Value. NCV - Net Calorific Value.)

GCV at constant volume
NCV at constant pressure
NCV at constant volume
GCV at constant pressure

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Fuels and Combustion
Bright coal

Contains more than 90% fussain
Contains mainly vitrain & clarain and is generally coking
Is non-coking
Contains more than 90% durain

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