We performed investigation of combustion and emissions for a direct Injection diesel engine with variation of major operation variables. This is a preliminary study for development of a PCCI (Premixed Charge Compression Ignition) engine in Korea Automotive Technology Institute (KATECH). Simulations are done by the modified KIVA-3V (KIVA-CMC) code coupled with CHEMKIN and skeletal chemistry for n-heptane. Different loads and injection timings are applied to study the effects on heat release and NOx emissions. Model predictions are validated against experimental pressure traces and NOx emissions. Results show the predictive capabilities and influence of load and injection timing on engine combustion and emissions.
展开▼
