Performance study of diesel/methanol compound combustion technology applied to high-speed marine engine

被引：0

作者：

Yao C. ^{[1
]}

Wang H. ^{[1
]}

Yao A. ^{[1
]}

Cai X. ^{[2
]}

Wagn B. ^{[1
]}

Chen C. ^{[1
]}

Liu M. ^{[1
]}

Li Z. ^{[1
]}

Wu J. ^{[1
]}

机构：

[1] State Key Laboratory of Engines, Tianjin University, Tianjin

[2] Ship Electric Power Division, Guangxi Yuchai Machinery Co., Ltd., Yulin

来源：

Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University | 2021年 / 42卷 / 01期

关键词：

Alternative fuel; Diesel/methanol compound combustion; Dual-fuel engine; Emission legislation of marine engine; High-speed marine diesel engine; Methanol;

D O I：

10.11990/jheu.201906041

中图分类号：

学科分类号：

摘要：

To use methanol as a fuel of marine diesel engine, a methanol injection system was mounted on the intake pipe of a high-pressure common rail and turbo-charge high-speed four-stroke marine engine. The marine engine diesel/methanol compound combustion (DMCC) was realized on the basis of the collaboration of methanol and diesel electronic control units. Meanwhile, an experimental study on pollutant emission was conducted. The results showed that the engine achieved high-efficiency combustion under the diesel/methanol dual-fuel mode. Under the same operating condition and compared with the pure diesel mode, the combustion phase was in advance, the time of the main heat release was closer to the top dead center, and the maximum cylinder pressure, peak heat release rate, and maximum pressure rise rate were higher than those in the pure diesel mode. The dual-fuel mode (DOC added) can meet China Ⅰ emission standards. CO-, HC-, and NOx-weighted emissions were all lower than those in the pure diesel mode, and particulate matter emission kept the same level with the pure diesel mode. The substitution rate of methanol for diesel oil under the main working conditions was over 40%, and the maximum was 55%. By contrast, under full-load working conditions, it was limited by the maximum cylinder pressure, and the substitution rate was approximately 30%. Copyright ©2021 Journal of Harbin Engineering University.

引用

页码：112 / 118

页数：6

共 22 条

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