Study on effect of diesel injection strategy on performance of ammonia-diesel dual-fuel engine

CHEN Xu; MIAO Xuelong; ZHENG Jinbao; DI Yage; ZHAO Zhifeng; GUO Lixin

doi:10.12299/jsues.23-0271

Volume 38 Issue 4

Dec. 2024

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Article Navigation > Journal of Shanghai University of Engineering Science > 2024 > 38(4): 355-362

CHEN Xu, MIAO Xuelong, ZHENG Jinbao, DI Yage, ZHAO Zhifeng, GUO Lixin. Study on effect of diesel injection strategy on performance of ammonia-diesel dual-fuel engine[J]. Journal of Shanghai University of Engineering Science, 2024, 38(4): 355-362. doi: 10.12299/jsues.23-0271

Citation:

CHEN Xu, MIAO Xuelong, ZHENG Jinbao, DI Yage, ZHAO Zhifeng, GUO Lixin. Study on effect of diesel injection strategy on performance of ammonia-diesel dual-fuel engine[J]. Journal of Shanghai University of Engineering Science, 2024, 38(4): 355-362. doi: 10.12299/jsues.23-0271

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Study on effect of diesel injection strategy on performance of ammonia-diesel dual-fuel engine

doi: 10.12299/jsues.23-0271

1.
School of Mechanical and Automotive Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
2.
Wuxi Fuel Injection Equipment Research Institute, Wuxi 214063, China

Received Date: 2023-12-28
Publish Date: 2024-12-31

Abstract

Abstract

Based on a heavy-duty diesel engine, the effects of different ammonia energy ratio (AER) and diesel injection strategies on the combustion performance of ammonia-diesel dual-fuel engine were investigated by using CONVERGE software, the indicated thermal efficiency (ITE) of the engine was optimized by adjusting the diesel injection strategy. The results of the study show that the AER increases from 0% to 80% with a consequent decrease in the ITE, the increase in the reaction product N₂O resulted in greater greenhouse gas (GHG) emissions than in the original diesel-only combustion mode of the diesel engine. The AER is constant at 50%. At the optimum point of diesel single injection timing, the ITE is comparable to that of the original diesel combustion mode, while GHG emissions decreases by 19.7% and NO emissions increases by 41.6%. At the optimum point of pre- and main injection timing for diesel split injection, the ITE increases by 1.6%, GHG emission decreases by 40.4%, and NO emission increased by 31.8% compared with the original diesel combustion mode, delaying the main injection timing of diesel split injection can effectively reduce NO emissions.
- ammonia-diesel dual-fuel engine,
- ammonia energy ratio (AER),
- diesel injection strategy,
- greenhouse gas (GHG)

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References(18)

References

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