Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6474317 | Fuel | 2017 | 14 Pages |
â¢New ignition delay data of DME/n-butane/air mixtures were provided.â¢Literature models were evaluated.â¢The influences of DME addition on n-butane ignition were interpreted in the NTC region.
In this study, the ignition delay times of lean and stoichiometric DME/n-butane/air mixtures were measured behind reflected shock waves at pressures of 2 and 10Â atm, temperatures from 650 to 1400Â K. The performances of several chemical kinetic models were evaluated. Numerical simulation and chemical kinetic analysis were conducted in a broad temperature range and at various DME blending ratios to understand the interactions between DME and n-butane. It is found that DME addition can promote both the first-stage and overall ignition delay of n-butane in the NTC region.