Effects of ethanol-diesel fuel blends on the performance and exhaust emissions of heavy duty DI diesel engine

Abstract An experimental investigation is conducted to evaluate the effects of using blends of ethanol with conventional diesel fuel, with 5% and 10% (by vol.) ethanol, on the performance and exhaust emissions of a fully instrumented, six-cylinder, turbocharged and after-cooled, heavy duty, direct injection (DI), Mercedes–Benz engine, installed at the authors’ laboratory, which is used to power the mini-bus diesel engines of the Athens Urban Transport Organization sub-fleet with a view to using bio-ethanol produced from Greek feedstock. The tests are conducted using each of the above fuel blends, with the engine working at two speeds and three loads. Fuel consumption, exhaust smokiness and exhaust regulated gas emissions such as nitrogen oxides, carbon monoxide and total unburned hydrocarbons are measured. The differences in the measured performance and exhaust emissions of the two ethanol–diesel fuel blends from the baseline operation of the engine, i.e. when working with neat diesel fuel, are determined and compared. Theoretical aspects of diesel engine combustion combined with the widely differing physical and chemical properties of the ethanol against those for the diesel fuel, are used to aid the correct interpretation of the observed engine behavior.

[1]  Richard Stone,et al.  Introduction to Internal Combustion Engines , 1985, Internal Combustion Engines.

[2]  D. A. Kouremenos,et al.  Comparative performance and emission studies for vaporized diesel fuel and gasoline as supplements in swirl-chamber diesel engines , 1990 .

[3]  Dimitrios T. Hountalas,et al.  Operational and Environmental Evaluation of Diesel Engines Burning Oxygen-Enriched Intake Air or Oxygen-Enriched Fuels: A Review , 2004 .

[4]  Dimitrios C. Rakopoulos,et al.  Multi-zone modeling of Diesel engine fuel spray development with vegetable oil, bio-diesel or Diesel fuels , 2006 .

[5]  Constantine D. Rakopoulos,et al.  Olive oil as a fuel supplement in DI and IDI diesel engines , 1992 .

[6]  John B. Heywood,et al.  Internal combustion engine fundamentals , 1988 .

[7]  Clifford A. Moses,et al.  Performance and Emissions of Ethanol and Ethanol-Diesel Blends in Direct-Injected and Pre-Chamber Diesel Engines , 1982 .

[8]  Ramazan Köse,et al.  Research on the generation of electricity from the geothermal resources in Simav region, Turkey , 2005 .

[9]  D. J. Rickeard,et al.  A Review of the Potential for Bio-Fuels as Transportation Fuels , 1993 .

[10]  C. E. Goering,et al.  Technical feasibility of diesohol. , 1980 .

[11]  A. Tsolakis,et al.  Engine performance and emissions of a diesel engine operating on diesel-RME (rapeseed methyl ester) blends with EGR (exhaust gas recirculation) , 2007 .

[12]  Alan Christopher Hansen,et al.  High concentration ethanol-diesel blends for compression-ignition engines , 1983 .

[13]  Keith C. Corkwell,et al.  Review of Exhaust Emissions of Compression Ignition Engines Operating on E Diesel Fuel Blends , 2003 .

[14]  Qin Zhang,et al.  Ethanol-diesel fuel blends -- a review. , 2005, Bioresource technology.

[15]  C. Weaver.  Cost-Effectiveness of Alternative Fuels and Conventional Technologies for Reducing Transit Bus Emissions in Santiago, Chile , 1989 .

[16]  Octavio Armas,et al.  Diesel emissions from biofuels derived from Spanish potential vegetable oils , 2005 .

[17]  C. D. Rakopoulos,et al.  Performance and emissions of bus engine using blends of diesel fuel with bio-diesel of sunflower or cottonseed oils derived from Greek feedstock , 2008 .

[18]  Deli Li,et al.  Physico-chemical properties of ethanol–diesel blend fuel and its effect on performance and emissions of diesel engines , 2005 .

[19]  E. H. Pryde,et al.  Evaluation of Diesel Fuel — Ethanol Microemulsions , 1982 .

[20]  Dimitrios C. Rakopoulos,et al.  Study of the performance and emissions of a high-speed direct injection diesel engine operating on ethanol diesel fuel blends , 2007 .

[21]  Richard L. Bechtold,et al.  STATE-OF-THE-ART REPORT ON THE USE OF ALCOHOLS IN DIESEL ENGINES , 1984 .

[22]  D. A. Kouremenos,et al.  The operation of a turbulence chamber diesel engine with LPG fumigation for exhaust emissions control , 1986 .

[23]  Dimitrios T. Hountalas,et al.  DEVELOPMENT AND VALIDATION OF A 3-D MULTI-ZONE COMBUSTION MODEL FOR THE PREDICTION OF DI DIESEL ENGINES PERFORMANCE AND POLLUTANTS EMISSIONS , 1998 .

[24]  Robert L. McCormick,et al.  Combustion of fat and vegetable oil derived fuels in diesel engines , 1998 .

[25]  A. Schaefer,et al.  Ignition Improvers for Ethanol Fuels , 1981 .

[26]  Emmanuel Kakaras,et al.  Characteristics of the performance and emissions of a HSDI diesel engine running with cottonseed oil or its methyl ester and their blends with diesel fuel , 2007 .

[27]  Noboru Noguchi,et al.  Performance improvement by control of flow rates and diesel injection timing on dual-fuel engine with ethanol , 1996 .

[28]  Ayhan Demirbas,et al.  Progress and recent trends in biofuels , 2007 .

[29]  W. Körbitz,et al.  Biodiesel production in Europe and North America, an encouraging prospect , 1999 .

[30]  G. Vaitilingom,et al.  Interest of combining an additive with diesel–ethanol blends for use in diesel engines , 2001 .

[31]  E. A. Ajav,et al.  Experimental study of some performance parameters of a constant speed stationary diesel engine using ethanol--diesel blends as fuel , 1999 .

[32]  Evangelos G. Giakoumis,et al.  Second-law analyses applied to internal combustion engines operation , 2006 .

[33]  C. Rakopoulos,et al.  Hydrogen enrichment effects on the second law analysis of natural and landfill gas combustion in engine cylinders , 2006 .

[34]  C. E. Goering,et al.  Ethanol Injection into a Diesel Engine , 1982 .

[35]  Dimitrios C. Kyritsis,et al.  Comparative second-law analysis of internal combustion engine operation for methane, methanol, and dodecane fuels , 2001 .

[36]  Kenton R Kaufman,et al.  Vegetable Oils as a Potential Alternate Fuel in Direct Injection Diesel Engines , 1983 .

[37]  Evangelos G. Giakoumis,et al.  Review of Thermodynamic Diesel Engine Simulations under Transient Operating Conditions , 2006 .

[38]  Naeim A. Henein,et al.  Combustion phenomena of alcohols in C.I. engines , 1989 .

[39]  R. A. White,et al.  The Effect of Fumigation of Different Ethanol Proofs on a Turbocharged Diesel Engine , 1988 .

[40]  C. D. Rakopoulos,et al.  A stochastic-experimental investigation of the cyclic pressure variation in a di single-cylinder diesel engine , 1992 .

[41]  Dimitrios C. Rakopoulos,et al.  Comparative performance and emissions study of a direct injection Diesel engine using blends of Diesel fuel with vegetable oils or bio-diesels of various origins , 2006 .

[42]  Dimitrios C. Kyritsis,et al.  Development and validation of a comprehensive two‐zone model for combustion and emissions formation in a DI diesel engine , 2003 .

[43]  Wang Jian-xin,et al.  Study on combustion characteristics and PM emission of diesel engines using ester–ethanol–diesel blended fuels , 2007 .

[44]  Dimitrios C. Rakopoulos,et al.  Multi-zone modeling of combustion and emissions formation in DI diesel engine operating on ethanol–diesel fuel blends , 2008 .

[45]  H. Simonsen,et al.  Testing and evaluation of ignition improvers for ethanol in a DI diesel engine , 1995 .

[46]  Huang Zhen,et al.  THE INFLUENCE OF ETHANOL ADDITIVES ON THE PERFORMANCE AND COMBUSTION CHARACTERISTICS OF DIESEL ENGINES , 2004 .

[47]  Dimitrios C. Rakopoulos,et al.  Development and application of multi-zone model for combustion and pollutants formation in direct injection diesel engine running with vegetable oil or its bio-diesel , 2007 .

[48]  Dimitrios C. Rakopoulos,et al.  Experimental heat release analysis and emissions of a HSDI diesel engine fueled with ethanol–diesel fuel blends , 2007 .

[49]  Dimitrios C. Kyritsis,et al.  Experimental-stochastic investigation of the combustion cyclic variability in HSDI diesel engine using ethanol–diesel fuel blends , 2008 .