Effect of Methanol Addition on Combustion and Emissions Characteristics on a Turbocharged GDI Engine

To enrich the knowledge and understanding of the application effect of methanol fuel In the current engine, the Influence of methanol-gasoline blended fuel containing 10 %, 20 % and 30 % methanol addition (M10, M20 and M30) on the engine performance, combustion and emissions were studied on a turboc...

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Bibliographic Details
Published inInternational journal of automotive technology Vol. 23; no. 5; pp. 1405 - 1417
Main Authors Chen, Hong, Du, Jiakun, Li, Yuhuai, Zhan, Wenfeng, Wu, Jian, Xie, Fangxi, Wu, Guangquan
Format Journal Article
LanguageEnglish
Published Seoul The Korean Society of Automotive Engineers 01.10.2022
Springer Nature B.V
한국자동차공학회
Subjects
Automotive Engineering
Combustion
Emissions
Energy consumption
Engineering
Fuel consumption
Gasoline
Heat release rate
Low speed
Methanol
자동차공학
Particle emissions
Methanol-gasoline blended fuel
Combustion
Spark engine
Performance
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Summary:To enrich the knowledge and understanding of the application effect of methanol fuel In the current engine, the Influence of methanol-gasoline blended fuel containing 10 %, 20 % and 30 % methanol addition (M10, M20 and M30) on the engine performance, combustion and emissions were studied on a turbocharged and direct injection engine with original control system and control parameters. The results showed that at the conditions with low speed, the peak heat release rate and cylinder pressure were decreased by the use of blended fuel while it shown an increased peak combustion pressure and heat release rate at high speed. Meanwhile, the combustion center of blended fuel was obviously different from gasoline and its optimal value, and the combustion variation was increased at low load. The fuel consumption lifted continuously with the increase of methanol addition ratio, and the equivalent fuel consumption of M10 and M20 also was higher than that of pure gasoline. For NOx emissions, although it has been improved continuously for M10, M20 and M30 under the higher engine load, the higher emissions were obtained for M10 and M20 at lower load. In addition, compared with gasoline fuel, the whole particle distribution curve and number concentration was significantly deteriorated with methanol addition.
ISSN:1229-9138
1976-3832
DOI:10.1007/s12239-022-0123-x