A study of a GCI engine fueled with gasoline-biodiesel blends under pilot and main injection strategies

Abstract A study was conducted to compare gasoline with the addition of 5% by volume of biodiesel (GB05) to 100% neat diesel using the multiple injection strategies in a gasoline compression ignition (GCI) engine. The engine was tested at 1200 rpm using 70 MPa of injection pressure and multiple injections, which consisted of a pilot injection at the 350-degree crank angle before top dead center (°C A BTDC) for approximately 1140 μs, followed by the main injection at 40 °C A BTDC for around 350 μs. The results show that low-temperature combustion can be achieved for GB05 with multiple injections at an in-cylinder temperature of approximately 1800 K. The heat release rates (HRR) for multiple injections of GB05 were lower than that for a single injection of 100% diesel. However, it is higher than those of multiple injections of 100% diesel and a single injection of GB05. Using multiple injections and increasing the temperatures of the intake, oil and engine coolant could result in improved combustion and engine efficiency. Multiple injections of GB05 showed decreased carbon monoxide (CO) emissions, which could be due to the pilot injection of GB05. The biodiesel content and using gasoline as a highly volatile fuel in GB05 showed the significant effect of lowering total hydrocarbon (THC) and CO emissions. However, nitrogen oxide (NOx) emissions from GB05 for both the multiple and single-injection modes seem to be higher than those of multiple injections of 100% diesel and even higher than those of a single injection of 100% diesel, which is due to the oxygen content in the GB05 fuel.

[1]  Avinash Kumar Agarwal,et al.  Biofuels (alcohols and biodiesel) applications as fuels for internal combustion engines , 2007 .

[2]  Gautam Kalghatgi,et al.  Fuel/Engine Interactions , 2013 .

[3]  Rolf D. Reitz,et al.  In-Cylinder Fuel Blending of Gasoline/Diesel for Improved Efficiency and Lowest Possible Emissions on a Multi-Cylinder Light-Duty Diesel Engine , 2010 .

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

[5]  James A. Eng,et al.  The Effects of Intake Charge Preheating in a Gasoline-Fueled HCCI Engine , 2005 .

[6]  Yingjia Zhang,et al.  High temperature ignition delay time of DME/n-pentane mixture under fuel lean condition , 2017 .

[7]  Andrew Ball,et al.  Combustion and performance characteristics of CI (compression ignition) engine running with biodiesel , 2013 .

[8]  Rakesh Kumar Maurya,et al.  Experimental investigation of cyclic variations in HCCI combustion parameters for gasoline like fuels using statistical methods , 2013 .

[9]  M. S. Murthy,et al.  Blending of additives with biodiesels to improve the cold flow properties, combustion and emission performance in a compression ignition engine—A review , 2011 .

[10]  R. Cracknell,et al.  Modelling a Gasoline Compression Ignition (GCI) Engine Concept , 2013 .

[11]  Li Li,et al.  Effect of biodiesel saturation on soot formation in diesel engines , 2016 .

[12]  Seongeun Yu,et al.  Comparison of the effects of multiple injection strategy on the emissions between moderate and heavy EGR rate conditions: part 1-pilot injections , 2013 .

[13]  Meijuan Liu,et al.  Study on cyclic variability of dual fuel combustion in a methanol fumigated diesel engine , 2016 .

[14]  Gerardo Valentino,et al.  Comparative behavior of gasoline–diesel/butanol–diesel blends and injection strategy management on performance and emissions of a light duty diesel engine , 2014 .

[15]  de Lph Philip Goey,et al.  Gasoline–diesel dual fuel : effect of injection timing and fuel balance , 2011 .

[16]  Mingfa Yao,et al.  A Comparative Study on Different Dual-Fuel Combustion Modes Fuelled with Gasoline and Diesel , 2012 .

[17]  Tiegang Fang,et al.  Engine performance, combustion, and emissions study of biomass to liquid fuel in a compression-ignition engine , 2015 .

[18]  Wang Ying,et al.  Study of HCCI-DI combustion and emissions in a DME engine , 2009 .

[19]  Octavio Armas,et al.  Effect of biodiesel fuels on diesel engine emissions , 2008 .

[20]  Roger B. Krieger,et al.  Experimental Investigation of Light-Medium Load Operating Sensitivity in a Gasoline Compression Ignition (GCI) Light-Duty Diesel Engine , 2013 .

[21]  G. T. Kalghatgi,et al.  9 – Fuel effects in CAI gasoline engines , 2007 .

[22]  A. E. Elwardany,et al.  Numerical Simulations of Hollow Cone Injection and Gasoline Compression Ignition Combustion With Naphtha Fuels , 2015 .

[23]  Ali M.A. Attia,et al.  Corn and soybean biodiesel blends as alternative fuels for diesel engine at different injection pressures , 2015 .

[24]  John E. Dec,et al.  Investigation of the Sources of Combustion Noise in HCCI Engines , 2014 .

[25]  Alberto Broatch,et al.  An Experimental Investigation of Diesel-Gasoline Blends Effects in a Direct-Injection Compression-Ignition Engine Operating in PCCI Conditions , 2013 .

[26]  A. Megaritis,et al.  Experimental Investigation into HCCI Combustion Using Gasoline and Diesel Blended Fuels , 2005 .

[27]  S. Cordiner,et al.  Impact of biodiesel fuel on engine emissions and Aftertreatment System operation , 2016 .

[28]  Roger B. Krieger,et al.  Effects of biodiesel–gasoline blends on gasoline direct-injection compression ignition (GCI) combustion , 2013 .

[29]  Hans-Erik Ångström,et al.  Advantages of Fuels with High Resistance to Auto-ignition in Late-injection, Low-temperature, Compression Ignition Combustion , 2006 .

[30]  Rolf D. Reitz,et al.  Exploring the benefits of multiple injections in low temperature combustion using a diesel surrogate model , 2016 .

[31]  Zhen Huang,et al.  HC and CO emissions of premixed low-temperature combustion fueled by blends of diesel and gasoline , 2012 .

[32]  Jaeheun Kim,et al.  Alternative fuels for internal combustion engines , 2017 .

[33]  Cheng Zhan,et al.  Experimental investigation on spray and atomization characteristics of diesel/gasoline/ethanol blends in high pressure common rail injection system , 2016 .

[34]  Ying Wang,et al.  Study on cycle-by-cycle variations in a diesel engine with dimethyl ether as port premixing fuel , 2015 .

[35]  Rolf D. Reitz,et al.  Numerical Parametric Study of Diesel Engine Operation with Gasoline , 2009 .

[36]  Bengt Johansson,et al.  Supercharged Homogeneous Charge Compression Ignition (HCCI) with Exhaust Gas Recirculation and Pilot Fuel , 2000 .

[37]  Vitaly Y. Prikhodko,et al.  Emission Characteristics of a Diesel Engine Operating with In-Cylinder Gasoline and Diesel Fuel Blending , 2010 .

[38]  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 .

[39]  Stephen Ciatti,et al.  Computational Fluid Dynamics Simulation of Gasoline Compression Ignition , 2015 .

[40]  Choongsik Bae,et al.  Application of double-injection strategy on gasoline compression ignition engine under low load condition , 2017 .

[41]  Zhen Huang,et al.  Experimental study on compound HCCI (homogenous charge compression ignition) combustion fueled with gasoline and diesel blends , 2014 .

[42]  Tanet Aroonsrisopon,et al.  The Effect of Intake Air Temperature, Compression Ratio and Coolant Temperature on the Start of Heat Release in an HCCI (Homogeneous Charge Compression Ignition) Engine , 2001 .

[43]  Stefano D'Ambrosio,et al.  Potential of double pilot injection strategies optimized with the design of experiments procedure to improve diesel engine emissions and performance , 2015 .

[44]  B. Heuser,et al.  Exploring a Gasoline Compression Ignition (GCI) engine concept , 2015 .

[45]  Wai K. Cheng,et al.  Effect of Air Temperature and Humidity on Gasoline HCCI Operating in the Negative-Valve-Overlap Mode , 2007 .

[46]  Ocktaeck Lim,et al.  A study on combustion and emission of GCI engines fueled with gasoline-biodiesel blends , 2017 .

[47]  A. E. Elwardany,et al.  Numerical Simulations of Hollow-Cone Injection and Gasoline Compression Ignition Combustion With Naphtha Fuels , 2016 .

[48]  O. Lim,et al.  The effects of Gasoline-Biodiesel Blended Fuels on Spray Characteristics , 2015 .

[49]  Stephen Ciatti,et al.  Effects of injection parameters, boost, and swirl ratio on gasoline compression ignition operation at idle and low-load conditions , 2017 .

[50]  John E. Dec,et al.  Thermodynamic and Chemical Effects of EGR and Its Constituents on HCCI Autoignition. , 2007 .