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A review of experimental and simulation studies on controlled auto-ignition combustion

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conference contribution
posted on 24.05.2011, 15:45 by Nesa Milovanovic, Rui ChenRui Chen
Engines with controlled auto-ignition (CAI) combustion offer a number of benefits over conventional spark ignited (SI) and compression ignited (CI) engines, such as much lower NOx emission due to its relatively low combustion temperature, negligible cycle-to-cycle variation due to its self-ignition nature, higher combustion efficiency at part load than its SI counterpart, and low soot emissions since a homogeneous lean air/fuel mixture is being employed. Unlike conventional SI and CI engines, where combustion is directly controlled by the engine management system, the combustion in CAI engines is controlled by chemical kinetics only. Over the past two decades, a number of technologies have been developed to initiate such combustion on both 2 and 4-stroke engines with various fuels, but none of them could maintain the combustion over the wide engine operation range. Remaining problems include control of ignition timing and the heat release rate over the entire engine operation range. This paper reviews some of the engine research results and available data from combustion kinetics studies. It has been observed that the quality of engine charge affects both ignition timing and the heat release rate of CAI combustion, but a certain charge temperature is essential to start the ignition of CAI combustion.

History

School

  • Aeronautical, Automotive, Chemical and Materials Engineering

Department

  • Aeronautical and Automotive Engineering

Citation

MILOVANOVIC, N. and CHEN, R., 2001. A review of experimental and simulation studies on controlled auto-ignition combustion. IN: SAE International Spring Fuels and Lubricants Meeting and Exposition, Orlando, USA, 7th-9th May.

Publisher

© SAE International

Version

VoR (Version of Record)

Publication date

2001

Notes

This is a conference paper [2001 © SAE International]. It was posted on this site with permission from SAE International. Further use and distribution of this paper requires permission from SAE International.

ISSN

0148-7191

Book series

SAE Technical Papers;2001-01-1890

Language

en

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