Exploitable results
Chemical and physical parameters controlling the formation of pyrolytic products (soot and polyaromatic hydrocarbons - PAHs) have been determined by means of optical diagnostic techniques. Experimental work was undertaken in high pressure conditions characteristic of modern power stations, combustion chambers and piston engines. The study showed that since diffusion is the most important combustion mechanism in diesel engines, fuel quality is not an important factor in soot forma-tion.
When fossil fuels burn, the heavier fractions can aggregate and form soot particles which contribute to atmospheric pollution. To control these emissions, one must first understand how they are formed during the combustion process. The objective of this project was to contribute to the understanding of soot formation. It generated reliable quantitative data on hydrocarbon fuel pyrolysis and soot formation under conditions arising in modern power stations (using gas, liquid hydrocarbons, coal dust or slurries), high power combustion chambers and piston engines.
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