calorific$10798$ - definizione. Che cos'è calorific$10798$
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Cosa (chi) è calorific$10798$ - definizione

Calorific Value of Coal

Energy value of coal         
The energy value of coal, or fuel content, is the amount of potential energy coal contains that can be converted into heat. This value can be calculated and compared with different grades of coal and other combustible materials, which produce different amounts of heat according to their grade.
Heat of combustion         
QUANTITY MEASURING THE ENERGY PER UNIT OF MASS OR VOLUME THAT SOME SUBSTANCE RELEASES UPON OXIDATION
Standard enthalpy change of combustion; Heating value; Higher heating value; Lower heating value; Higher Heating Value; Lower Heating Value; Calorific value; Gross energy; Heat of Combustion; Calorific Value; Enthalpy of combustion; Standard enthalpy of combustion; Net energy content; SEC Combust; Enthalpy change of combustion; Burning temperature; Lower calorific value; Specific heat of oxidation; Heat value; Heating Value; Gross calorific value; Gross heating value; Net calorific value
The heating value (or energy value or calorific value) of a substance, usually a fuel or food (see food energy), is the amount of heat released during the combustion of a specified amount of it.
calorific value         
QUANTITY MEASURING THE ENERGY PER UNIT OF MASS OR VOLUME THAT SOME SUBSTANCE RELEASES UPON OXIDATION
Standard enthalpy change of combustion; Heating value; Higher heating value; Lower heating value; Higher Heating Value; Lower Heating Value; Calorific value; Gross energy; Heat of Combustion; Calorific Value; Enthalpy of combustion; Standard enthalpy of combustion; Net energy content; SEC Combust; Enthalpy change of combustion; Burning temperature; Lower calorific value; Specific heat of oxidation; Heat value; Heating Value; Gross calorific value; Gross heating value; Net calorific value
¦ noun the energy contained in a fuel or food (now usually expressed in joules per kilogram).

Wikipedia

Energy value of coal

The energy value of coal, or fuel content, is the amount of potential energy coal contains that can be converted into heat. This value can be calculated and compared with different grades of coal and other combustible materials, which produce different amounts of heat according to their grade.

While chemistry provides ways of calculating the heating value of a certain amount of a substance, there is a difference between this theoretical value and its application to real coal. The grade of a sample of coal does not precisely define its chemical composition, so calculating the coal's actual usefulness as a fuel requires determining its proximate and ultimate analysis (see "Chemical Composition" below).