This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Combustion Characteristics of a Single-Cylinder Engine Equipped with Gasoline and Ethanol Dual-Fuel Systems
Technical Paper
2008-01-1767
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
The requirement of reduced emissions and improved fuel economy led the introduction of direct-injection (DI) spark-ignited (SI) engines. Dual-fuel injection system (direct-injection and port-fuel-injection (PFI)) was also used to improve engine performance at high load and speed. Ethanol is one of the several alternative transportation fuels considered for replacing fossil fuels such as gasoline and diesel. Ethanol offers high octane quality but with lower energy density than fossil fuels. This paper presents the combustion characteristics of a single cylinder dual-fuel injection SI engine with the following fueling cases: a) gasoline for PFI and DI, b) PFI gasoline and DI ethanol, and c) PFI ethanol and DI gasoline. For this study, the DI fueling portion varied from 0 to 100 percentage of the total fueling over different engine operational conditions while the engine air-to-fuel ratio remained at a constant level. It was shown in all cases that the IMEP (indicated mean effective pressure) decreases by as much as 11% as DI fueling percentage increases, except in case b) where the IMEP increases by 2% at light load. The combustion burn duration increases significantly at light load as DI fueling percentage increases, but only moderately at WOT (wide open throttle). In addition, the percentage of the ethanol in the total fueling plays a dominant role in affecting the combustion characteristics at light load; but at heavy load (WOT), the DI fueling percentage becomes an important parameter, regardless of the percentage of ethanol content in the fuel.
Recommended Content
Authors
Topic
Citation
Zhu, G., Stuecken, T., Schock, H., Yang, X. et al., "Combustion Characteristics of a Single-Cylinder Engine Equipped with Gasoline and Ethanol Dual-Fuel Systems," SAE Technical Paper 2008-01-1767, 2008, https://doi.org/10.4271/2008-01-1767.Also In
References
- Ikoma Takuya Abe Shizuo Sonoda Tukihiro Suzuki Hisao Suzuki Yuichi Basaki Masatoshi “Development of V-6 3.5-liter Engine Adopting New Direct Injection System,” SAE 2006-01-1259
- Sinor Jerry E. Bailey Brent K. “Current and Potential Future Performance of Ethanol Fuels,” SAE 930376
- Li Liguang Liu Zhimin Wang Huiping Deng Baoqing Xiao Zongcheng Wang Ahengsuo Gong Changming Su Yan “Combustion and Emissions of Ethanol Fuel (E100) in a Small SI Engine,”
- Varde Keshav S. Clark Christopher P. “A Comparison of Burn Characteristics and Exhaust Emissions From Off- Highway Engines Fueled By E0 and E85,” SAE 2004-28-0045
- Nakata Koichi Utsumi Shintaro “The Effect of Ethanol Fuel on a Spark Ignition Engine,” SAE 2006-01-3380
- Tsunooka Takashi Hosokawa Yohei Utsumi Shintaro Kawai Takashi Sonoda Yukihiro “High Concentration Ethanol Effect on SI Engine Cold Startability,” SAE 2007-01-2036
- Taniguchi Satoshi Yoshida Kaori Tsukasaki Yukihiro “Feasibility Study of Ethanol Applications to A Direct Injection Gasoline Engine,” SAE 2007-01-2037
- Kapus Paul E. Fuerhapter Alois Fuchs H. Fraidl Guenter K. “Ethanol Direct Injection on Turbocharged SI Engines - Potential and Challenges,” SAE 2007-01-1408
- Zhang Yan He Bangquan Xie Hui Zhao Hua “The Combustion and Emission Characteristics of Ethanol on a Port Fuel Injection HCCI Engine,” SAE 2006-01-0631
- Bromberg Leslie Cohn Daniel Heywood John “Optimized Fuel Management System for Direct Injection Ethanol Enhancement of Gasoline Engines”
- Xu Min Porter Dave L. Daniel Chao F. Panagos Gus Winkelman, Jim Munir K. “Soft Spray Formation of a Low-Pressure High-Turbulence Fuel Injector for Direct Injection Gasoline Engines,” SAE 2002-01-2746
- Hung D.L.S. Jeff Mara Winkelman Jim “Tailoring the Spray Pattern of Multi-hole Fuel Injectors for Gasoline DI Engine Homogeneous-Charge Combustion,” ILASS-America, 18 th Annual Conference on Liquid Atomization and Spray System Irvine, CA May 2005
- Zhu Guoming G. Daniels Chao F. Winkelman James “MBT Timing Detection and its Closed Loop Control Using In-Cylinder Pressure Signal,” SAE 2003-01-3266
- SAE J2715 “Gasoline Fuel Injector Spray Measurements and Characterizations” 2007 SAE International Warrendale, Pennsylvania
- Hung David L.S. Zhu Guoming G. Winkelman Jim Stuecken Tom Schock Harold Fedewa Andrew “A high speed flow visualization study of fuel spray pattern effect on mixture formation in a low pressure direct injection gasoline engine,” SAE 2007-01-1141