Download Heat of combustion, calorific value, laboratory, ISO 1716

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Heat of Combustion
The calorific value of a substance is the amount of heat released during the
combustion of a specified amount of it.
The heating value of a substance is the quantity of heat produced by the complete
combustion of a given mass of a fuel, usually expressed in kJ/kg or kJ/mol or kcal/kg.
Heating value is commonly determined by the use of a bomb calorimeter and the heat
of combustion for fuels is expressed as the HHV and LHV.
HHV:
The higher heating value (gross calorific value or gross energy) of a fuel is defined as
the amount of heat released by a specified quantity of fuel once it is combusted which
takes into account the latent heat of vaporization of water in the combustion products.
LHV:
The lower heating value does not include the latent heat of vaporization for the water
formed in the combustion process.
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LABORATORY ANALYSIS
ANALYTICE provides heating value for your fuel, liquid fuels, gaseous and biomass
fuels according the following standard test method:
DIN 51900 : Testing of solid and liquid fuels - Determination of gross calorific value by
the bomb calorimeter and calculation of net calorific value
ASTM D240 : Standard test Method for heat of combustion of liquid hydrocarbon
fuels by bomb calorimeter
ISO 1716 : Determination of the gross heat of combustion (calorific value)
ISO 1928 : Solid mineral fuels. Determination of gross calorific value by the bomb
calorimetric method and calculation of net calorific value
DIN 51857 : Calculation of superior and inferior calorific value, density and Wobbe
index of gaseous fuels and other gases
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