LAUSR

Innovative solutions in terms of energy efficiency and pollutant emission abatement require the development of new combustion technologies. In particular, several solutions imply a process based on mixture dilution and preheating that can lead to very peculiar combustion regimes. New combustion concepts, such as moderate or intense low-oxygen dilution (MILD) combustion, rely on a local self-ignition mechanism as a result of the obtainment of burned gas/fresh reactant mixtures that lead to a process mainly stabilized by means of a distributed autoignition. Despite the very interesting features related to such a concept, several modeling issues have to be properly investigated, to permit the development of MILD combustion concepts through a computationally driven design. The evaluation of characteristic times, on both micro- and macroscales, is strongly influenced by the emerging characteristics related to a strong coupling between mixing and kinetic times as a result of the high dilution levels of such tec...