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Article | REF: BM2520 V1

Fuels and combustion

Author: Jean-Claude GUIBET

Publication date: July 10, 2000

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2. Thermochemistry

Before describing combustion reaction processes, it's necessary to recall a few elements of chemical thermodynamics and thermochemistry.

The aim is to express the composition of the fuel-air reaction mixture and calculate the heat released and the composition of the exhaust gases.

2.1 Stoichiometric equation of combustion. Stoichiometric ratio

Quantitative elemental analysis of the fuel provides its mass content of carbon, hydrogen and, where applicable, oxygen, enabling us to write the overall formula (CH y O z ) x where the coefficient x, linked to the molar mass, has no influence on the air-fuel...

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