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Partially Premixed Combustion of Gasoline Type Fuels Using Larger Size Nozzle and Higher Compression Ratio in a Diesel Engine
Technical Paper
2013-01-2539
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
If fuels that are more resistant to auto-ignition are injected near TDC in compression ignition engines, they ignite much later than diesel fuel and combustion occurs when the fuel and air have had more chance to mix. This helps to reduce NOX and smoke emissions at much lower injection pressures compared to a diesel fuel. However, PPCI (Partially Premixed Compression Ignition) operation also leads to higher CO and HC at low loads and higher heat release rates at high loads. These problems can be significantly alleviated by managing the mixing through injector design (e.g. nozzle size and centreline spray angle) and changing CR (Compression Ratio). This work describes results of running a single-cylinder diesel engine on fuel blends by using three different nozzle design (nozzle size: 0.13 mm and 0.17 mm, centreline spray angle: 153° and 120°) and two different CRs (15.9:1 and 18:1). The engine could be run on such blends with extremely low smoke and low NOX at speeds and loads of up to 4000 rpm and 10 bar IMEP. The smoke at comparable NOX levels was extremely high with diesel fuel at these conditions. The engine could also be run at near-idle conditions on these blends with levels of HC and CO emissions comparable with the diesel fuel. The wider volatility range with high compression ratio shows a benefit in avoiding over-mixing and over-leaning which could lead to poor combustion stability. The efficiency of PCCI combustion vehicle is expected to be about the same as for a diesel engine. PPCI combustion can be achieved more easily by using fuels with higher resistance to auto-ignition than conventional diesel fuel. Additionally, a successful commercial development of PCCI combustion vehicles could open the way for more efficient vehicles in markets where diesel fuel is not widely available for passenger car applications.
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Won, H., Peters, N., Pitsch, H., Tait, N. et al., "Partially Premixed Combustion of Gasoline Type Fuels Using Larger Size Nozzle and Higher Compression Ratio in a Diesel Engine," SAE Technical Paper 2013-01-2539, 2013, https://doi.org/10.4271/2013-01-2539.Also In
References
- Kalghatgi , G. Auto-Ignition Quality of Practical Fuels and Implications for Fuel Requirements of Future SI and HCCI Engines SAE Technical Paper 2005-01-0239 2005 10.4271/2005-01-0239
- Westbrook , C.K. Chemical kinetics of hydrocarbon ignition in practical combustion systems Proc. Combust. Instit. 2000 28 1563 1577
- Kalghatgi , G. , Risberg , P. , and Ångström , H. Advantages of Fuels with High Resistance to Auto-ignition in Late-injection, Low-temperature, Compression Ignition Combustion SAE Technical Paper 2006-01-3385 2006 10.4271/2006-01-3385
- Kalghatgi , G. , Risberg , P. , and Ångström , H. Partially Pre-Mixed Auto-Ignition of Gasoline to Attain Low Smoke and Low NOx at High Load in a Compression Ignition Engine and Comparison with a Diesel Fuel SAE Technical Paper 2007-01-0006 2007 10.4271/2007-01-0006
- Kalghatgi , G.T. , Hildingsson , L. and Johansson , B. Low NO X and low smoke operation of a diesel engine using gasoline-like fuels. ICES 2009-76034 Journal of Engineering for Gas Turbines and Power 132 9 2010
- Li , T. , Okabe , Y. , Izumi , H. , Shudo , T. et al. Dependence of Ultra-High EGR Low Temperature Diesel Combustion on Fuel Properties SAE Technical Paper 2006-01-3387 2006 10.4271/2006-01-3387
- Risberg , P. , Kalghatgi , G. , Ångstrom , H. , and Wåhlin , F. Auto-ignition quality of Diesel- like fuels in HCCI engines SAE Technical Paper 2005-01-2127 2005 10.4271/2005-01-2127
- Bessonette , P. , Schleyer , C. , Duffy , K. , Hardy , W. et al. Effects of Fuel Property Changes on Heavy-Duty HCCI Combustion SAE Technical Paper 2007-01-0191 2007 10.4271/2007-01-0191
- Manente , V. , Johansson , B. , and Tunestal , P. Partially Premixed Combustion at High Load using Gasoline and Ethanol, a Comparison with Diesel SAE Technical Paper 2009-01-0944 2009 10.4271/2009-01-0944
- Manente , V. , Johansson , B. and Tunestål , P. Half load partially premixed combustion, PPC, with high octane number fuels, gasoline and ethanol compared with diesel Paper No. SIAT 2009 295
- Manente , V. , Johansson , B. and Tunestål , P. Characterisation of partially premixed combustion with ethanol: EGR sweeps, low and maximum loads ASME internal combustion engine division 2009 technical conference, ICES 2009-76165
- Hanson , R. , Splitter , D. , and Reitz , R. Operating a Heavy-Duty Direct-Injection Compression-Ignition Engine with Gasoline for Low Emissions SAE Technical Paper 2009-01-1442 2009 10.4271/2009-01-1442
- Weall , A. and Collings , N. Investigation into Partially Premixed Combustion in a Light- Duty Multi-Cylinder Diesel Engine Fuelled Gasoline and Diesel with a Mixture of SAE Technical Paper 2007-01-4058 2007 10.4271/2007-01-4058
- Weall , A. and Collings , N. Gasoline Fuelled Partially Premixed Compression Ignition in a Light Duty Multi Cylinder Engine: A Study of Low Load and Low Speed Operation SAE Int. J. Engines 2 1 1574 1586 2009 10.4271/2009-01-1791
- Kalghatgi , G.T. Is gasoline the best fuel for advanced diesel engines? - Fuel effects in premixed enough compression ignition (CI) engines Conference on Towards Clean Diesel Engines Aachen June 4 5 2009
- Kalghatgi , G.T. , Gurubaran , K. , Davenport , A. , Harrison A.J. , Taylor , A.K.M.F. , Hardalupas , Y. Some advantages and challenges of running a Euro IV V6 diesel engine on a gasoline fuel 8th International Symposium Towards Clean Diesel Engines, TCDE 2011 Chester 8 9 June 2011
- Won , H. , Peters , N. , Tait , N. and Kalghatgi , G. T. Sufficiently premixed compression ignition of a gasoline-like fuel using three different nozzles in a diesel engine Proc. IMechE Part D: J Automobile Engineering 226 698 708 2011
- Won , H. , Peters , N. , Tait , N. and Kalghatgi , G. T. Some effects of gasoline and diesel mixtures on partially premixed combustion and comparison with practical fuels gasoline and diesel in a compression ignition engine Proc. IMechE Part D: J Automobile Engineering 226 9 1259 1270 2011