Development of a compact and robust Polyoxymethylene Dimethyl Ether 3 reaction mechanism for internal combustion engines

摘要: Abstract With high oxygen content, Polyoxymethylene Dimethyl Ether 3 (PODE3) is a potential fuel additive to reduce soot emissions. However, reaction mechanisms describe PODE3 combustion are not yet compact enough for 3-D numerical simulations. Therefore, the current work aims develop small reliable mechanism. Based on sensitivity analysis, major pathway identified construct sub-mechanism. Thereafter, it integrated with primary reference (PRF) mechanism create PRF-PODE3 containing 61 species and 190 reactions. The of sub-mechanism consists only 11 17 Furthermore, new has been well validated experimental results in terms ignition delay times (rapid compression machine at pressures = 1.0 MPa 1.5 MPa, equivalence ratios = 0.5, 1.0 1.5), laminar flame speeds (Pin = 1 atm, Tin = 408 K), concentrations (pressure = 33.3 mbar, ratio = 1) homogeneous charge (HCCI) (equivalence ratios = 0.18 0.34). Overall, this highly robust demonstrated be suitable internal engine In addition, good agreement fundamental validations, proposed can reasonably applied other practical applications such as simulations jet engines, pulse detonation boilers furnaces.