Development and validation of reduced combustion mechanism for gasoline/butanol blends

被引：0
|
作者：
Lyu D.-L. [1 ]
Zhou C. [1 ]
Han D. [1 ,2 ]
机构：
[1] Key Laboratory for Power Machinery and Engineering, Ministry of Education, Shanghai Jiao Tong University, Shanghai
[2] Shanghai Non-carbon Energy Conversion and Utilization Institute, Shanghai
来源：
Jilin Daxue Xuebao (Gongxueban)/Journal of Jilin University (Engineering and Technology Edition) | 2023年 / 53卷 / 05期
关键词：
chemical kinetics; energy and power engineering; engines; gasoline/butanol blends; reduced mechanism;
D O I：
10.13229/j.cnki.jdxbgxb.20210877
中图分类号：
学科分类号：
摘要：
A reduced combustion mechanism of gasoline/butanol blends containing 425 elementary reactions and 96 species was developed using direct relation graph with error propagation and sensitivity analysis，based on a detailed mechanism of gasoline/butanol containing 7714 elementary reactions and 1765 species. In this reduced mechanism，i-butanol，n-butanol，t-butanol and s-butanol sub-mechanisms are included，and the n-heptane/iso-octane/toluene mixtures are used as the gasoline model fuel. The ignition delay times，species concentration profiles and laminar flame speeds predicted by the reduced mechanism were compared with those predicted by the detailed mechanism and experimental data，with satisfactory agreement being observed. Finally，this reduced mechanism was used in a three-dimension computational fluid dynamics software CONVERGE to simulate the combustion processes of a spark-ignited engine fueled with gasoline/butanol blends. The results showed that the in-cylinder combustion behaviors in this spark-ignited engine could be well captured by this reduced mechanism. © 2023 Editorial Board of Jilin University. All rights reserved.
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页码：1264 / 1271
页数：7
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