RC__Publication2_Conference papersC_2004 IMechE_CAI Mixttrc8-Oct05-123604.pdf (340.25 kB)
Computational study on the charge mixing of internal exhaust gas recirculation initiated controlled auto ignition
conference contribution
posted on 2011-06-06, 10:21 authored by Paul Osei-Owusu, Rui Chen, Salah IbrahimControlled Auto Ignition (CAI) uses compression heat to auto ignite a homogeneous air/fuel mixture.
Using internal exhaust gas re-circulation (IEGR) as an indirect control method, CAI offers potentially
superior fuel economy and pollutant emission reductions. The local chemical and thermal conditions
of the engine charge towards the end of the compression stroke have significant influences toward fuel
auto ignition performance. In this study, KIVA-3V has been employed to investigate the mixing
process involving the fuel, air and the IEGR inside a pentroof engine. The calculated results were
compared with experimental data. A mixing index was formulated to show the level of homogeneity
in the mixture during the compression process. Good correlations were obtained between the
measured and calculated data. Results showed that the level of mixing between trapped burnt gas and
the fresh mixture is enhanced by increasing the percentage of trapped IEGR.
History
School
- Aeronautical, Automotive, Chemical and Materials Engineering
Department
- Aeronautical and Automotive Engineering
Citation
OSEI-OWUSU, P., CHEN, R. and IBRAHIM, S., 2004. Computational study on the charge mixing of internal exhaust gas recirculation initiated controlled auto ignition. IN: IMechE Proceedings of Internal Combustion Engine Performance and Emissions, London, UK, 7th-8th December.Publisher
© IMechEVersion
- AM (Accepted Manuscript)
Publication date
2004Notes
This is a conference paper.Publisher version
Language
- en