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Predicting Effects of DME on the Operating Range of Natural Gas-Fueled Compression Ignition Engines
Technical Paper
2007-01-0620
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Numerical models were used to study the effects of dimethyl ether (DME) on the operation of a compression-ignition engine fueled with premixed natural gas. The models used multi-dimensional engine CFD coupled with detailed chemical kinetics. Combustion characteristics of various compositions of the natural gas and DME mixture were simulated. Results showed that combustion phasing, nitrogen oxides emissions, and effects of fuel compositions on engine operating limits were well predicted. Chemical kinetics analysis indicated that ignition was achieved by DME oxidation, which, in turn, induced natural gas combustion. It was found that low temperature heat release became more significant as DME concentration increased. For an appropriate amount of DME in the mixture, the stable engine operating range became narrower as natural gas concentration increased. The model also captured the low temperature combustion features of the present engine with low nitrogen oxides emissions. The model results further confirm that using DME to help control natural gas compression-ignition engine combustion is a viable method.
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Kong, S., "Predicting Effects of DME on the Operating Range of Natural Gas-Fueled Compression Ignition Engines," SAE Technical Paper 2007-01-0620, 2007, https://doi.org/10.4271/2007-01-0620.Also In
References
- Karim GA Liu Z Jones, W Exhaust Emissions from Dual Fuel Engines at Light Loads 1993 SAE Paper 932822
- Krishnan SR Biruduganti M Mo Y Bell SR Midkiff KC Performance and heat release analysis of a pilot ignited natural gas engine Intl J Engine Research 2002 3 3 171 184
- Kajitani S Chen Z Konno M Rhee KT Engine Performance and Exhaust characteristics of Direct-Injection Diesel Engine Operated with DME 1997 SAE Paper 972973
- Suzuki T Yonetani H Fukutani I Combustion Characteristics of Compression Ignited Engine with DME Low-Pressure Fuel Injection 1999 JSAE Paper 9939910
- Chen MT DME-The Diesel Engine Alternative Fuel for the 21 st Century Appl Chem Ind 2001 30 4 7
- Christensen M Johansson B Einewall P Homogeneous Charge Compression Ignition (HCCI) Using Isooctane, Ethanol and Natural Gas-A Comparison with Spark Ignition Operation 1997 SAE Paper 972874
- Christensen M Hultqvist A Johansson B Demonstrating the Multi Fuel Capability of a HCCI Engine with Variable Compression Ratio 1999 SAE Paper 1999-01-3679
- Kong SC Marriott CD Rutland CJ Reitz RD Experiments and CFD Modeling of Direct Injection Gasoline HCCI Engine Combustion 2002 SAE Paper 2002-01-1925
- Stanglmaier RH Roberts CE Homogeneous Charge Compression Ignition (HCCI): Benefits, Compromises, and Future Engine Applications 1999 SAE Paper 1999-01-3682
- Kawabata Y Nakagawa K Shoji F Operating Characteristics of Natural Gas Fueled Homogeneous Charge Compression Ignition Engine 1999 JSAE Paper 9932953
- Chen Z Konno M Oguma, M Yanai, T Experimental Study of CI Natural-Gas/DME Homogeneous Charge Engine 2000 SAE Paper 2000-01-0329
- Dec J A Computational Study of the Effects of Low Fuel Loading and EGR on the Heat Release Rates and Combustion Limits in HCCI Engines 2002 SAE Paper 2002-01-1309
- Aceves SM Flowers DL Westbrook CK Smith JR Pitz W Dibble R Christensen M Johansson B A Multi-Zone Model for Prediction of HCCI Combustion and Emissions 2000 SAE Paper 2000-01-0327
- Kong SC Reitz RD Application of Detailed Chemistry and CFD for Predicting Direct Injection HCCI Engine Combustion and Emissions Proc. Combust. Inst. 2002 29 663 669
- Kong SC Reitz RD Numerical Study of Premixed HCCI Engine Combustion and Its Sensitivity to Computational Mesh and Model Uncertainties Combust Theory Modeling 2003 7 417 433
- Kong SC Sun Y Reitz RD Modeling Diesel Spray Flame Lift-Off, Sooting Tendency and NOx Emissions Using Detailed Chemistry with Phenomenological Soot Models J. Engng Gas Turbines Power 2006
- Amsden AA KIVA-3V: A Block-Structured KIVA Program for Engines with Vertical or Canted Valves 1997
- Kong SC Reitz RD Christensen M Johansson B Modeling the Effects of Geometry Generated Turbulence on HCCI Engine Combustion Journal of Engines 2003 112 1511 1521
- Han, Z. Reitz, R.D. “Turbulence Modeling of Internal Combustion Engines Using RNG k-ε Models” Combust. Sci. and Tech. 106 267 295 1995
- Kee RJ Rupley FM Miller JA CHEMKIN-II: A FORTRAN Chemical Kinetics Package for the Analyses of Gas Phase Chemical Kinetics Sandia Report 1989
- Curran HJ Fischer, SL Dryer FL The Reaction Kineics of Dimethyl Ether. II: Low-Temperature Oxidation in Flow Reactions Int. J. Chem. Kinet 2000 32 741 759
- Smith GP Golden DM Frenklach M Moriarty NW Eiteneer B Goldenberg M Bowman CT Hanson RK Song S Gardiner WC Lissianski VV Qin Z 2000 http://www.me.berkeley.edu/gri_mech/
- Westbrook CK Chemical Kinetics of Hydrocarbon Ignition in Practical Combustion Systems Proc. Comb. Inst 2000 28 1563 1578