Reduction of Smoke and NOx from Diesel Engines Using a Diesel/Methanol Compound Combustion System

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• 作者：Chunde Yao ; C. S. Cheung ; Chuanhui Cheng ; Yinshan Wang
• 刊名：Energy & Fuels
• 出版年：2007
• 出版时间：March 2007
• 年：2007
• 卷：21
• 期：2
• 页码：686 - 691
• 全文大小：112K
• 年卷期：v.21,no.2(March 2007)
• ISSN：1520-5029

文摘

This paper presents the concept of a diesel methanol compound combustion (DMCC) system and someexperimental results on the application of the system to two diesel engines. In the DMCC system, diesel fuelis used for engine starting and for low load operation. At medium to high load, a fixed amount of diesel fuelis maintained while extra energy is acquired by injecting methanol into the intake manifold to form ahomogeneous methanol/air mixture. The system was tested on two 4-cylinder diesel engines: one naturallyaspirated and the other turbocharged. In both cases, the DMCC is found to reduce brake specific equivalentfuel consumption, reduce smoke emission, and reduce NOx emission but increase CO and HC emissions.