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News 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. 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 Do not hesitate to contact us. (2016-10-10) Analytice - 43 Route du Polygone - 67100 STRASBOURG - France Tél : 03 90 41 29 80 - Fax : 03 90 41 29 83 - Web : www.analytice.com - Mail : [email protected]