Biodiesel engines are found to have improved soot, hydrocarbon (HC), and carbon monoxide (CO) emissions, with modestly increased nitrogen oxides (NOx) emissions. Exhaust gas recirculation (EGR) could be used for the NOx emissions control, especially in the fuel-kinetics-dominated engine combustion concepts. A detailed chemical kinetic model of methyl decanoate (MD), a biodiesel surrogate fuel, was used here to simulate the two-stage auto-ignition process of biodiesel with EGR addition. The effects of EGR constituents, including carbon dioxide (CO2), water vapor (H2O), CO and H2, were identified in a constant-pressure ignition process and in a variable pressure, variable volume process. Firstly, numerical methods were used to isolate the dilution, thermal, and chemical effects of CO2 and H2O at a constant pressure. It was found that in the biodiesel auto-ignition processes, the dilution effects of CO2 and H2O always played the primary role. Their thermal and chemical effects mainly influenced the second-stage ignition, and the chemical effect of H2O was more significant than CO2. The triple effects of CO and H2 were also analyzed at the same temperature and pressure conditions. Additionally, the sensitivity analysis and reaction pathway analysis were conducted to elucidate the chemical effects of CO and H2 on the ignition processes at different temperatures. Finally, based on a variable pressure, variable volume model simulating the engine compression stroke, the effects of CO2, H2O, CO and H2 addition under the engine operational conditions were studied and compared to those under the constant pressure conditions.
Skip Nav Destination
Article navigation
December 2018
Research-Article
Effects of Exhaust Gas Recirculation Constituents on Methyl Decanoate Auto-Ignition: A Kinetic Study
Jiabo Zhang,
Jiabo Zhang
Key Laboratory of Power Machinery
and Engineering,
Ministry of Education,
Shanghai Jiao Tong University,
Shanghai 200240, China
e-mail: zhangjiabo@sjtu.edu.cn
and Engineering,
Ministry of Education,
Shanghai Jiao Tong University,
Shanghai 200240, China
e-mail: zhangjiabo@sjtu.edu.cn
Search for other works by this author on:
Jiaqi Zhai,
Jiaqi Zhai
Key Laboratory of Power Machinery
and Engineering,
Ministry of Education,
Shanghai Jiao Tong University,
Shanghai 200240, China
e-mail: digakii@sjtu.edu.cn
and Engineering,
Ministry of Education,
Shanghai Jiao Tong University,
Shanghai 200240, China
e-mail: digakii@sjtu.edu.cn
Search for other works by this author on:
Dehao Ju,
Dehao Ju
Key Laboratory of Power Machinery
and Engineering,
Ministry of Education,
Shanghai Jiao Tong University,
Shanghai 200240, China
e-mail: d.ju@sjtu.edu.cn
and Engineering,
Ministry of Education,
Shanghai Jiao Tong University,
Shanghai 200240, China
e-mail: d.ju@sjtu.edu.cn
Search for other works by this author on:
Zhen Huang,
Zhen Huang
Key Laboratory of Power Machinery
and Engineering,
Ministry of Education,
Shanghai Jiao Tong University,
Shanghai 200240, China
e-mail: z-huang@sjtu.edu.cn
and Engineering,
Ministry of Education,
Shanghai Jiao Tong University,
Shanghai 200240, China
e-mail: z-huang@sjtu.edu.cn
Search for other works by this author on:
Dong Han
Dong Han
Key Laboratory of Power Machinery
and Engineering,
Ministry of Education,
Shanghai Jiao Tong University,
Shanghai 200240, China
e-mail: dong_han@sjtu.edu.cn
and Engineering,
Ministry of Education,
Shanghai Jiao Tong University,
Shanghai 200240, China
e-mail: dong_han@sjtu.edu.cn
Search for other works by this author on:
Jiabo Zhang
Key Laboratory of Power Machinery
and Engineering,
Ministry of Education,
Shanghai Jiao Tong University,
Shanghai 200240, China
e-mail: zhangjiabo@sjtu.edu.cn
and Engineering,
Ministry of Education,
Shanghai Jiao Tong University,
Shanghai 200240, China
e-mail: zhangjiabo@sjtu.edu.cn
Jiaqi Zhai
Key Laboratory of Power Machinery
and Engineering,
Ministry of Education,
Shanghai Jiao Tong University,
Shanghai 200240, China
e-mail: digakii@sjtu.edu.cn
and Engineering,
Ministry of Education,
Shanghai Jiao Tong University,
Shanghai 200240, China
e-mail: digakii@sjtu.edu.cn
Dehao Ju
Key Laboratory of Power Machinery
and Engineering,
Ministry of Education,
Shanghai Jiao Tong University,
Shanghai 200240, China
e-mail: d.ju@sjtu.edu.cn
and Engineering,
Ministry of Education,
Shanghai Jiao Tong University,
Shanghai 200240, China
e-mail: d.ju@sjtu.edu.cn
Zhen Huang
Key Laboratory of Power Machinery
and Engineering,
Ministry of Education,
Shanghai Jiao Tong University,
Shanghai 200240, China
e-mail: z-huang@sjtu.edu.cn
and Engineering,
Ministry of Education,
Shanghai Jiao Tong University,
Shanghai 200240, China
e-mail: z-huang@sjtu.edu.cn
Dong Han
Key Laboratory of Power Machinery
and Engineering,
Ministry of Education,
Shanghai Jiao Tong University,
Shanghai 200240, China
e-mail: dong_han@sjtu.edu.cn
and Engineering,
Ministry of Education,
Shanghai Jiao Tong University,
Shanghai 200240, China
e-mail: dong_han@sjtu.edu.cn
1Corresponding author.
Manuscript received September 26, 2017; final manuscript received June 21, 2018; published online August 9, 2018. Assoc. Editor: David L. S. Hung.
J. Eng. Gas Turbines Power. Dec 2018, 140(12): 121001 (13 pages)
Published Online: August 9, 2018
Article history
Received:
September 26, 2017
Revised:
June 21, 2018
Citation
Zhang, J., Zhai, J., Ju, D., Huang, Z., and Han, D. (August 9, 2018). "Effects of Exhaust Gas Recirculation Constituents on Methyl Decanoate Auto-Ignition: A Kinetic Study." ASME. J. Eng. Gas Turbines Power. December 2018; 140(12): 121001. https://doi.org/10.1115/1.4040682
Download citation file:
Get Email Alerts
A Multi-Stage Nonlinear Method for Aeroengine Health Parameter Estimation Based on Adjacent Operating Points
J. Eng. Gas Turbines Power
A Combined Experimental and Turbulence-Resolved Modeling Approach for Aeroengine Turbine Rim Seals
J. Eng. Gas Turbines Power (August 2024)
Related Articles
Factors Determining Antiknocking Properties of Gaseous Fuels in Spark-Ignition Gas Engines
J. Eng. Gas Turbines Power (October,2016)
Ignition Delay and Combustion Characteristics of Gaseous Fuel Jets
J. Eng. Gas Turbines Power (April,2010)
Errata: “Schlieren Observation of Spark-Ignited Premixed Charge Combustion Phenomena Using a Transparent Collimating Cylinder Engine” [ASME J. Eng. Gas Turbines Power, 2003, 125 , pp. 336–343]
J. Eng. Gas Turbines Power (April,2003)
Hydrogen-Enhanced Gasoline Stratified Combustion in SI-DI Engines
J. Eng. Gas Turbines Power (March,2008)
Related Proceedings Papers
Related Chapters
Lay-Up and Start-Up Practices
Consensus on Operating Practices for Control of Water and Steam Chemistry in Combined Cycle and Cogeneration
Physiology of Human Power Generation
Design of Human Powered Vehicles