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Volume 12
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Article

Study on the Impact of Ammonia–Diesel Dual-Fuel Combustion on Performance of a Medium-Speed Diesel Engine

by
Hua Xiao
1,
Wenxuan Ying
1,2,
Aiguo Chen
1,*,
Guansheng Chen
2,
Yang Liu
1,
Zhaochun Lyu
1,2,
Zengyin Qiao
3,
Jun Li
1,
Zhenwei Zhou
1 and
Xi Deng
4
1
School of Naval Architecture and Ocean Engineering, Guangzhou Maritime University, Guangzhou 510725, China
2
School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
3
R & D Department, Guangzhou Diesel Engine Factory Co., Ltd., Guangzhou 510370, China
4
Department of Architecture, The University of Hong Kong, Hong Kong SAR, China
*
Author to whom correspondence should be addressed.
J. Mar. Sci. Eng. 2024, 12(5), 806; https://doi.org/10.3390/jmse12050806
Submission received: 12 April 2024 / Revised: 6 May 2024 / Accepted: 7 May 2024 / Published: 12 May 2024
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Abstract

The combustion of diesel fuel in internal combustion engines faces challenges associated with excessive emissions of pollutants. A direct solution to this issue is the incorporation of cleaner energy sources. In this study, a numerical model was constructed to investigate the characteristics of ammonia–diesel dual-fuel application in a medium-speed diesel engine. Effects of ammonia–diesel blending ratios on engine performance and emissions were investigated. The results indicate that for this engine model, the optimal diesel energy ratio is about 22%. When the diesel energy ratio is less than 22%, the engine’s output performance is significantly affected by the diesel energy ratio, while above 22%, the influence of the intake becomes more pronounced. When the diesel energy ratio is below 16%, the cylinder cannot reach combustion conditions. Diesel energy ratios below 22% can cause ammonia leakage. With increasing diesel energy ratio, the final emissions of carbon oxides increase. With a higher diesel energy ratio, NO emissions become lower. When the diesel fuel energy ratio exceeds 22%, the N2O emissions can be almost neglected, while below 22%, with poor combustion conditions inside the cylinder, the N2O emissions will increase.
Keywords: ammonia; diesel; dual fuel; simulation ammonia; diesel; dual fuel; simulation

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MDPI and ACS Style

Xiao, H.; Ying, W.; Chen, A.; Chen, G.; Liu, Y.; Lyu, Z.; Qiao, Z.; Li, J.; Zhou, Z.; Deng, X. Study on the Impact of Ammonia–Diesel Dual-Fuel Combustion on Performance of a Medium-Speed Diesel Engine. J. Mar. Sci. Eng. 2024, 12, 806. https://doi.org/10.3390/jmse12050806

AMA Style

Xiao H, Ying W, Chen A, Chen G, Liu Y, Lyu Z, Qiao Z, Li J, Zhou Z, Deng X. Study on the Impact of Ammonia–Diesel Dual-Fuel Combustion on Performance of a Medium-Speed Diesel Engine. Journal of Marine Science and Engineering. 2024; 12(5):806. https://doi.org/10.3390/jmse12050806

Chicago/Turabian Style

Xiao, Hua, Wenxuan Ying, Aiguo Chen, Guansheng Chen, Yang Liu, Zhaochun Lyu, Zengyin Qiao, Jun Li, Zhenwei Zhou, and Xi Deng. 2024. "Study on the Impact of Ammonia–Diesel Dual-Fuel Combustion on Performance of a Medium-Speed Diesel Engine" Journal of Marine Science and Engineering 12, no. 5: 806. https://doi.org/10.3390/jmse12050806

APA Style

Xiao, H., Ying, W., Chen, A., Chen, G., Liu, Y., Lyu, Z., Qiao, Z., Li, J., Zhou, Z., & Deng, X. (2024). Study on the Impact of Ammonia–Diesel Dual-Fuel Combustion on Performance of a Medium-Speed Diesel Engine. Journal of Marine Science and Engineering, 12(5), 806. https://doi.org/10.3390/jmse12050806

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