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Experimental Characterization of Mixed-Mode HCCI/DI Combustion on a Common Rail Diesel Engine
ISSN: 0148-7191, e-ISSN: 2688-3627
Published September 16, 2007 by Consiglio Nazionale delle Ricerche in Italy
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Homogeneous Charge Compression Ignition (HCCI) is considered a very promising concept to achieve low NOx and Particulate Matter emissions in traditional spark ignition and Diesel engines. However, controlling the complex mechanisms which govern the combustion process and finding a proper method for the fuel introduction for Diesel HCCI engines have proven to still be a challenge. In addition, the well known IMEP limitations of HCCI combustion restrict the benefits on emissions to low engine load conditions.
The current work attempts to extend the benefits of HCCI combustion to a broader range of engine operating conditions by blending the conventional Direct Injection (DI) with the external fuel atomization. A dual combustion system could potentially overcome the limits of low-load operations and allow for a gradual transition between the conventional DI mode at high load and the HCCI external mixture formation at idle and low load.
Using an automotive 2.5l common rail Diesel engine, a rapid prototyping ECU is used to control the direct injection system, varying the number of injections, rail pressure, timings and fuel quantities. The ECU also controls the quantity of fuel atomized in the intake manifold, as well as the EGR dilution and charge temperature (with an EGR bypass cooling loop).
The results included in the paper show a characterization of the mixed-mode HCCI/DI combustion based on the analysis of heat release, IMEP, torque, specific fuel consumption and emissions. Comparisons with results in pure DI mode at the same speed and load conditions are provided for comparison.
- Marcello Canova - Center for Automotive Research The Ohio State University
- Fabio Chiara - Center for Automotive Research The Ohio State University
- Joel Cowgill - Center for Automotive Research The Ohio State University
- Shawn Midlam-Mohler - Center for Automotive Research The Ohio State University
- Yann Guezennec - Center for Automotive Research The Ohio State University
- Giorgio Rizzoni - Center for Automotive Research The Ohio State University
CitationCanova, M., Chiara, F., Cowgill, J., Midlam-Mohler, S. et al., "Experimental Characterization of Mixed-Mode HCCI/DI Combustion on a Common Rail Diesel Engine," SAE Technical Paper 2007-24-0085, 2007, https://doi.org/10.4271/2007-24-0085.
- NajtP. M., and FosterD. E., “Compression-Ignited Homogeneous Charge Combustion”, SAE Technical Paper 830264.
- KimuraS., AokiO., OgawaH., MuranakaS., EnomotoY, “Combustion Concept for Ultra-Clean and High-Efficiency Small DI Diesel Engines”, SAE Technical Paper 1999-01-3681.
- HasegawaR., YanagiharaH., “HCCI Combustion in DI Diesel Engines”, SAE Technical Paper 2003-01-0745.
- HildingssonL., PerssonH., JohanssonB. CollinR., NygrenJ., RichterM., AldénM. HasegawaR., YanagiharaH., “Optical Diagnostics of HCCI and UNIBUS Using 2-D PLIF of OH and Formaldehyde”, SAE Technical Paper 2005-01-0175.
- AkagawaH., MiyamotoT., HaradaA., SasakiS., ShimazakiN., HashizumeT., TsujimuraK., “Approaches to Solve Problems of the Premixed Lean Diesel Combustion”,” SAE Teechnical Paper 1999-01-0183.
- RaY., ReitzR., “The Use of Variable Geometry Sprays With Low Pressure Injection for Optimization of Diesel HCCI Engine Combustion”, SAE Technical Paper 2005-01-0148.
- SimescuS., FivelandS., DodgeL., “An Experimental Investigation of PCCI-DI Combustion and Emissions in a Heavy-Duty Diesel Engine”, SAE Technical Paper 2003-01-0345.
- KimD.S., KimM.Y., LeeC., “Reduction of Nitric Oxides and Soot by Premixed Fuel in Partial HCCI Engine”, Journal of Engineering for Gas Turbine and Power, Vol. 128, pp.497-505, 2006.
- Midlam-MohlerS., GuezennecY., RizzoniG., HaasS., BernerH., BargendeM., “Mixed-mode HCCI/DI with external mixture preparation”, FISITA 2004 World Automotive Congress.
- CanovaM., ChiaraF., GarzarellaL., GhisolfiM., Midlam-MohlerS., GuezennecY., RizzoniG., “Experimental Validation for Control-Oriented Modeling of Multi-Cylinder HCCI Diesel Engines”, ASME International Mechanical Engineering Congress and Exposition (IMECE2006).
- CanovaM., Midlam-MohlerS., GuezennecY., RizzoniG., “Theoretical and Experimental Investigation on Diesel HCCI Combustion with External Mixture Formation”, International Journal of Vehicle Design, Vol. 44, No. 1/2, 2007.
- HenleA., BittlingerG., BenzC., SteinJ.O., SattelmayerT., “Homogeneous Operating Strategies in a DI Diesel Engine With Pent Roof Combustion Chamber and Tumble Charge Motion: Studies on a Single-Cylinder Test-Engine and an Optical Access Engine”, SAE Technical Paper 2005-01-0181.
- CanovaM., GarzarellaL., GhisolfiM., Midlam-MohlerS., GuezennecY., and RizzoniG., “A mean-value model of a turbocharged HCCI diesel engine with external mixture formation”, 7th International Conference on Engines for Automobile (ICE2005).
- CanovaM., ChiaraF., FloryM., Midlam-MohlerS., GuezennecY., RizzoniG., “Dynamics and Control of DI and HCCI Combustion in a Multi-Cylinder Diesel Engine”, 5th IFAC Symposium on Advances in Automotive Control, 2007.
- RyanT. W., CallahanT. J., “Homogeneous Charge Compression Ignition of Diesel Fuel”, SAE Technical Paper 961160.