Previous research indicates that the low temperature combustion (LTC) is capable of producing ultra-low nitrogen oxides (NOx) and soot emissions. The LTC in diesel engines can be enabled by the heavy use of exhaust gas recirculation (EGR) at moderate engine loads. However, when operating at higher engine loads, elevated demands of both intake boost and EGR levels to ensure ultra-low emissions make engine controllability a challenging task. In this work, a multi-fuel combustion strategy is implemented to improve the emission performance and engine controllability at higher engine loads. The port fueling of ethanol is ignited by the direct injection of diesel fuel. The ethanol impacts on the engine emissions, ignition delay, heat-release shaping and cylinder-charge cooling have been empirically analyzed with the sweeps of different ethanol-to-diesel ratios. Zero-dimensional phenomenological engine cycle simulations have been conducted to supplement the empirical work. The multi-fuel combustion of ethanol and diesel produces lower emissions of NOx and soot while maintaining the engine efficiency. The experimental set-up and study cases are described and the potential for the application of ethanol-to-diesel multi-fuel system at higher loads has been proposed and discussed.
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ASME 2012 Internal Combustion Engine Division Fall Technical Conference
September 23–26, 2012
Vancouver, BC, Canada
Conference Sponsors:
- Internal Combustion Engine Division
ISBN:
978-0-7918-5509-6
PROCEEDINGS PAPER
An Enabling Study of Low Temperature Combustion With Ethanol in a Diesel Engine
Tongyang Gao,
Tongyang Gao
University of Windsor, Windsor, ON, Canada
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Prasad Divekar,
Prasad Divekar
University of Windsor, Windsor, ON, Canada
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Usman Asad,
Usman Asad
University of Windsor, Windsor, ON, Canada
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Xiaoye Han,
Xiaoye Han
University of Windsor, Windsor, ON, Canada
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Graham T. Reader,
Graham T. Reader
University of Windsor, Windsor, ON, Canada
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Meiping Wang,
Meiping Wang
University of Windsor, Windsor, ON, Canada
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Ming Zheng,
Ming Zheng
University of Windsor, Windsor, ON, Canada
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Jimi Tjong
Jimi Tjong
Ford Motor Company, Windsor, ON, Canada
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Tongyang Gao
University of Windsor, Windsor, ON, Canada
Prasad Divekar
University of Windsor, Windsor, ON, Canada
Usman Asad
University of Windsor, Windsor, ON, Canada
Xiaoye Han
University of Windsor, Windsor, ON, Canada
Graham T. Reader
University of Windsor, Windsor, ON, Canada
Meiping Wang
University of Windsor, Windsor, ON, Canada
Ming Zheng
University of Windsor, Windsor, ON, Canada
Jimi Tjong
Ford Motor Company, Windsor, ON, Canada
Paper No:
ICEF2012-92176, pp. 217-226; 10 pages
Published Online:
July 25, 2013
Citation
Gao, T, Divekar, P, Asad, U, Han, X, Reader, GT, Wang, M, Zheng, M, & Tjong, J. "An Enabling Study of Low Temperature Combustion With Ethanol in a Diesel Engine." Proceedings of the ASME 2012 Internal Combustion Engine Division Fall Technical Conference. ASME 2012 Internal Combustion Engine Division Fall Technical Conference. Vancouver, BC, Canada. September 23–26, 2012. pp. 217-226. ASME. https://doi.org/10.1115/ICEF2012-92176
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