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Effects of Mixing and Chemical Parameters on Homogeneous Charge Induced Ignition Combustion Based on a Light-Duty Diesel Engine with Ultra-Low NOx and Soot Emissions and High Thermal Efficiency
Technical Paper
2013-01-0914
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
A Homogeneous charge induced ignition (HCII) combustion, realized by in-cylinder fuel blending of gasoline and diesel fuel, was developed and carefully optimized, both on a single cylinder and a multi-cylinder light-duty diesel engines, for high thermal efficiency and near zero emissions in a wide engine-operation range up to IMEP of 1 MPa. The effects of mixing and chemical parameters of HCII combustion, which can be controlled by production-viable hard-ware using conventional gasoline and diesel fuel, include injection timing of diesel fuel, injection rate pattern of diesel fuel (such as split injection), the gasoline/diesel ratio, boost pressure and exhaust gas recirculation (EGR). Based on a single cylinder engine, the experimental result shows that the interaction of the mentioned control parameters plays decisive role in determination of exhaust emissions and thermal efficiency. The coefficient of variability (COV) of IMEP, difference among cylinders, fuel consumption and emissions of the HCII combustion were also examined on a four-cylinder diesel engine. At more than half load, ultra-low NOx and soot emissions can be achieved with clean HCII combustion. Meanwhile, compared with the original diesel engine, the fuel consumption can be decreased even up to 9%.
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Authors
- Wenbin Yu - Great Wall Motor Engine R&D Center
- Zhiqiang Kang - Great Wall Motor Engine R&D Center
- Wei Guo - Great Wall Motor Engine R&D Center
- Jichun Liu - Great Wall Motor Engine R&D Center
- Weibo Zhao - Great Wall Motor Engine R&D Center
- Zhiyong Zhang - Great Wall Motor Engine R&D Center
- Haipeng Lai - Great Wall Motor Engine R&D Center
- Feng Bian - Great Wall Motor Engine R&D Center
- Wei Qu - Great Wall Motor Engine R&D Center
- Qingdang Wang - Great Wall Motor Engine R&D Center
- Dingwei Gao - Great Wall Motor Engine R&D Center
- Chunhui Zhang - Great Wall Motor Engine R&D Center
- Jianxin Wang - Tsinghua University, China
- Chao Yu - Tsinghua University, China
Topic
Citation
Yu, W., Kang, Z., Guo, W., Liu, J. et al., "Effects of Mixing and Chemical Parameters on Homogeneous Charge Induced Ignition Combustion Based on a Light-Duty Diesel Engine with Ultra-Low NOx and Soot Emissions and High Thermal Efficiency," SAE Technical Paper 2013-01-0914, 2013, https://doi.org/10.4271/2013-01-0914.Also In
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