Particulate matter characterization and control in premixed compression ignition engines

[摘要] The tests were conducted on a 2.2 L, four-cylinder Ford Puma engine running on a Premixed Compression Ignition (PCI) mode and at steady state. Hot EGR was introduced for fuels, G75 and naphtha and it significantly reduced the total particle number and mass concentrations by about 99% and the mean diameter to a smaller size ~ 10 nm compared to diesel fuel. Single injection reduced the total particle numbers’ concentration and smoke of both fuels G75 and naphtha by about 99%. Also, the total carbon (TC) was reduced by more than 54% for G75 and naphtha fuels compared to diesel fuel. The double injection strategy was flexible than the single injection. It reduced the total particle numbers’ concentration and smoke of G75 and naphtha fuels by about 99.80% at low and medium loads, also the total concentration of PAHs was reduced by more than 90% compared to single injected diesel fuel. For G75 fuel, double injection reduced the total concentration of alkanes by 60%, while single injection reduced the total concentration of cycloalkanes by 54% compared to other fuels.

[发布机构] University:University of Birmingham;Department:School of Engineering, Department of Mechanical Engineering

[关键词] T Technology;TJ Mechanical engineering and machinery