This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Combustion Characteristics of Emulsified Blends of Aqueous Ethanol and Diesel Fuel in a Diesel Engine with High Rates of EGR and Split Fuel Injections
ISSN: 0148-7191, e-ISSN: 2688-3627
Published August 30, 2011 by SAE International in United States
Annotation ability available
Silent, clean, and efficient combustion was realized with emulsified blends of aqueous ethanol and diesel fuel in a DI diesel with pilot injection and cooled EGR. The pilot injection sufficiently suppressed the rapid combustion to acceptable levels. The thermal efficiency with the emulsified fuel improved as the heat release with the pilot injection was retarded to near top dead center, due to poor ignitability and also due to a reduction in afterburning. With the emulsified fuel containing 40 vol% ethanol and 10 vol% water (E40W10), the smokeless operation range can be considerably extended even under low fuel injection pressure or low intake oxygen content conditions.
CitationSetiapraja, H., Ozawa, T., Hara, K., Yamazaki, K. et al., "Combustion Characteristics of Emulsified Blends of Aqueous Ethanol and Diesel Fuel in a Diesel Engine with High Rates of EGR and Split Fuel Injections," SAE Technical Paper 2011-01-1820, 2011, https://doi.org/10.4271/2011-01-1820.
- Murayama, T., et al., “Elimination of Combustion Difficulties in a Glow Plug-Assisted Diesel Engine Operated with Pure Ethanol and Water-Ethanol Mixtures,” SAE paper, 830373, pp. 1-9, 1983.
- Murayama, T., Ogawa, H., Miyamoto, N., and Chikahisa, T., “Achievement of Stable and Clean Combustion Over a Wide Operating Range in a Spark-Assisted IDI Diesel Engine with Neat Ethanol,” SAE Technical Paper 840517, SAE Transactions, 93, 1984, doi: 10.4271/840517.
- Ali, M., et al., “Improvement of Exhaust Gas of Diesel Engine Fueled by Ethanol Blend Fuel,” Transactions of JSME, Vol. 71, No. 706, pp. 1715-1722 (in Japanese), 2005.
- Rakopoulos, C. D., et al., “Experimental Heat Release Analysis and Emissions of a HSDI Diesel Engine Fueled with Ethanol-Diesel Fuel Blends,” Energy, 32, p.p. 1791-1808, 2007.
- Lapuerta, M., et al., “Emissions from a Diesel - Bioethanol Blends in an Automotive Diesel Engine,” Fuel, 27, p.p. 25-31, 2008.
- Can, O., et al., “Effects of Ethanol Addition on Performance and Emissions of a Turbocharged Indirect Injection Diesel Engine Running at Different Injection Pressures,” Energy Conversion and Management, 45, p.p. 2429-2440, 2004.
- Caro, P., et al., “Interest of Combining an Additive with Diesel - Ethanol Blends for Use in Diesel Engines, Fuel, 80, p.p. 565-574, 2001.
- Shudo, T., et al., “Simultaneuos Reduction in Cloud Point, Smoke, and NOx Emissions by Blending Bioethanol into Biodiesel Fuels and Exhaust Gas Recirculation,” International Journal of Engine Research, Vol. 10, No. 1, p.p. 15-26, 2009.
- Ogawa, H, et al., “Improvements to Premixed Diesel Combustion with Ignition Inhibitor Effects of Premixed Ethanol by Intake Port Injection,” SAE paper, 2010-01-0866, pp. 1-9, 2010.
- Flowers, D, et al., “Improving Ethanol Life Cycle Energy Efficiency by Direct Utilization of Wet Ethanol in HCCI Engines,” SAE paper, 2007-01-1867, pp. 1070-1078, 2007.
- Hansen, A. C., et al., “Ethanol - Diesel Fuel Blends - a Review,” Bioresource Technology, 96, p.p. 277-285, 2005.
- Ashok, M. P., et al., “Effect of Diethyl Ether with Emulsified Fuel in a Direct Injection Diesel Engine, SAE paper, 2007-01-2126, pp. 772-779, 2007.
- Ashok, M. P., et al., “Combustion Characteristics of Compression Engine Driven by Emulsified Fuel under Various Fuel Injection Angles,” Journal of Energy Resources Technology, Vol. 129, p.p. 325-331, 2007.
- Miyamoto, N., et al., “Approaches to Extremely Low Emissions and Efficient Diesel Combustion with Oxygenated Fuel,” International Journal of Engine Research (I Mech E), Vol. 1, No. 1, p.p. 71-85, 2000.