Article: Theoretical and experimental investigation on diesel HCCI combustion with external mixture formation Journal: International Journal of Vehicle Design (IJVD) 2007 Vol.44 No.1/2 pp.62 - 83 Abstract: Homogeneous Charge Compression Ignition (HCCI) is a concept for achieving ultra-low NOx and particulate matter emissions at part-load operations. HCCI combustion can be obtained on conventional diesel engines by premixing the charge in the intake manifold with a dedicated fuel atomiser. The paper describes experimental and modelling activities oriented to understanding and controlling diesel HCCI combustion with external mixture formation. Results obtained on different engines showed that stable diesel HCCI combustion could be achieved over a range of operating conditions, and confirmed its benefits in terms of NOx and soot reduction. The theoretical activity is focused on HCCI combustion modelling for control by means of a mean-value model of a complete engine system, which imbeds a thermodynamic combustion calculation. The satisfactory agreement with experimental data as well as the low computation time indicate the model suitable for HCCI engines control and diagnostics. Inderscience Publishers - linking academia, business and industry through research

Title: Theoretical and experimental investigation on diesel HCCI combustion with external mixture formation

Authors: Marcello Canova, Shawn Midlam-Mohler, Yann Guezennec, Giorgio Rizzoni

Addresses: The Ohio State University Center for Automotive Research, 930, Kinnear Rd, Columbus, OH, 43212, USA. ' The Ohio State University Center for Automotive Research, 930, Kinnear Rd, Columbus, OH, 43212, USA. ' The Ohio State University Center for Automotive Research, 930, Kinnear Rd, Columbus, OH, 43212, USA. ' The Ohio State University Center for Automotive Research, 930, Kinnear Rd, Columbus, OH, 43212, USA

Abstract: Homogeneous Charge Compression Ignition (HCCI) is a concept for achieving ultra-low NO_x and particulate matter emissions at part-load operations. HCCI combustion can be obtained on conventional diesel engines by premixing the charge in the intake manifold with a dedicated fuel atomiser. The paper describes experimental and modelling activities oriented to understanding and controlling diesel HCCI combustion with external mixture formation. Results obtained on different engines showed that stable diesel HCCI combustion could be achieved over a range of operating conditions, and confirmed its benefits in terms of NO_x and soot reduction. The theoretical activity is focused on HCCI combustion modelling for control by means of a mean-value model of a complete engine system, which imbeds a thermodynamic combustion calculation. The satisfactory agreement with experimental data as well as the low computation time indicate the model suitable for HCCI engines control and diagnostics.

Keywords: internal combustion engines; combustion modelling; dynamics; control; homogeneous charge compression ignition; diesel HCCI; external mixture formation; HCCI combustion; thermodynamics; nitrogen oxides reduction; soot reduction; emissions reduction.

DOI: 10.1504/IJVD.2007.013219

International Journal of Vehicle Design, 2007 Vol.44 No.1/2, pp.62 - 83

Published online: 12 Apr 2007 *

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Title: Theoretical and experimental investigation on diesel HCCI combustion with external mixture formation

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