利用废气再循环与米勒循环提高氢内燃机压缩比的研究

Jiatian Hao; Baigang Sun

doi:10.13949/j.cnki.nrjgc.2021.05.008

利用废气再循环与米勒循环提高氢内燃机压缩比的研究

Translated title of the contribution: Research on Improving the Compression Ratio of Hydrogen Internal Combustion Engines by Using Exhaust Gas Recirculation and Miller Cycle

Jiatian Hao, Baigang Sun^*

^*Corresponding author for this work

School of Mechanical Engineering

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

A one-dimensional model of a hydrogen internal combustion engine was built, and the effects of exhaust gas recirculation technology(EGR) and Miller cycle technology on the suppression of knocking and nitrogen oxides(NO_x) generation were simulated and analyzed. At last, these technologies were combined to explore the maximum achievable compression ratio and the best NO_x emission performance. The results show that EGR technology is more effective in suppressing NO_x production, while the Miller cycle is more effective in suppressing knocking. Finally, the compression ratio of the internal combustion engine can be increased from 10.0 to 18.4. The efficiency is reduced by 8.0% to 44.87%. And the NO_x emissions are reduced by 26.2% to 1.937 g/(kW•h) at the same time.

Translated title of the contribution	Research on Improving the Compression Ratio of Hydrogen Internal Combustion Engines by Using Exhaust Gas Recirculation and Miller Cycle
Original language	Chinese (Traditional)
Pages (from-to)	52-59
Number of pages	8
Journal	Neiranji Gongcheng/Chinese Internal Combustion Engine Engineering
Volume	42
Issue number	5
DOIs	https://doi.org/10.13949/j.cnki.nrjgc.2021.05.008
Publication status	Published - 15 Oct 2021

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title = "利用废气再循环与米勒循环提高氢内燃机压缩比的研究",

abstract = "A one-dimensional model of a hydrogen internal combustion engine was built, and the effects of exhaust gas recirculation technology(EGR) and Miller cycle technology on the suppression of knocking and nitrogen oxides(NOx) generation were simulated and analyzed. At last, these technologies were combined to explore the maximum achievable compression ratio and the best NOx emission performance. The results show that EGR technology is more effective in suppressing NOx production, while the Miller cycle is more effective in suppressing knocking. Finally, the compression ratio of the internal combustion engine can be increased from 10.0 to 18.4. The efficiency is reduced by 8.0% to 44.87%. And the NOx emissions are reduced by 26.2% to 1.937 g/(kW•h) at the same time.",

keywords = "Exhaust gas recirculation(EGR), Hydrogen internal combustion engine, Knock, Miller cycle, NO emission, Simulation",

author = "Jiatian Hao and Baigang Sun",

year = "2021",

month = oct,

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doi = "10.13949/j.cnki.nrjgc.2021.05.008",

language = "繁体中文",

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AU - Hao, Jiatian

AU - Sun, Baigang

PY - 2021/10/15

Y1 - 2021/10/15

N2 - A one-dimensional model of a hydrogen internal combustion engine was built, and the effects of exhaust gas recirculation technology(EGR) and Miller cycle technology on the suppression of knocking and nitrogen oxides(NOx) generation were simulated and analyzed. At last, these technologies were combined to explore the maximum achievable compression ratio and the best NOx emission performance. The results show that EGR technology is more effective in suppressing NOx production, while the Miller cycle is more effective in suppressing knocking. Finally, the compression ratio of the internal combustion engine can be increased from 10.0 to 18.4. The efficiency is reduced by 8.0% to 44.87%. And the NOx emissions are reduced by 26.2% to 1.937 g/(kW•h) at the same time.

AB - A one-dimensional model of a hydrogen internal combustion engine was built, and the effects of exhaust gas recirculation technology(EGR) and Miller cycle technology on the suppression of knocking and nitrogen oxides(NOx) generation were simulated and analyzed. At last, these technologies were combined to explore the maximum achievable compression ratio and the best NOx emission performance. The results show that EGR technology is more effective in suppressing NOx production, while the Miller cycle is more effective in suppressing knocking. Finally, the compression ratio of the internal combustion engine can be increased from 10.0 to 18.4. The efficiency is reduced by 8.0% to 44.87%. And the NOx emissions are reduced by 26.2% to 1.937 g/(kW•h) at the same time.

KW - Exhaust gas recirculation(EGR)

KW - Hydrogen internal combustion engine

KW - Knock

KW - Miller cycle

KW - NO emission

KW - Simulation

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利用废气再循环与米勒循环提高氢内燃机压缩比的研究

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