What will be the future combustion and fuel-related technology challenges?

摘要: Engine and fuels for transport are facing a double challenge: ○ bring local pollution to the levels requested by W.H.O. city air quality standard, reduce CO 2 emission in order minimize global warming risk. These goals stimulate development of both conventional alternative engines fuel technologies. New combustion processes known as Controlled Auto-Ignition (CAI ) gasoline Homogeneous Charge Compression Ignition (HCCI) diesel subjects intensive research world-wide particularly at IFP. Because thermo-chemical conditions charge, thermal NOx formation is, principle, much lower than with typical flames engines. Indeed, these new down very low level without post-treatment, while maintaining high thermodynamic efficiency combustion. The control such is complex due number technological parameters take into account. Considering fuels, it appears that their formulation could have an important impact on optimal operating ranges CAI or HCCI. Then, tailored formulation, based close selection qualities initiation, vapor formation, blend preparation, interaction residual gas flame diffusion, will strongly contribute success processes. targets modes induce consider key fuels. For example, parameters, octane cetane fuel, which values might not similar value HCCI One further view even raise question one unique process.