ID 277

Characterization of the spray cone angles of fuels with nanoparticle additives

 

Abstract:

The spray angles produced by fuel nozzles are of interest because they influence the ignition performance and hence the pollutant emissions emanating from the combustion of the fuel spray. Recent studies have indicated that the dispersion of metallic nanoparticles in liquid fuels can affect the fuel spray formation even at ambient temperature conditions. The initial results of the studies that are evaluating the use of existing phenomenological models to characterize these types of fuels sprays are presented here for the spray cone angle. The results indicate that the fuel spray cone angles decrease with increasing nanoparticle concentration in the fuels, though the changes are not remarkable. These results are similar to experimental data available. The suitability of the models is highlighted and the implications for use in nozzle design and nanofuel droplet and spray modelling are presented.