Comparative study on different water/steam injection layouts for fuel reduction in a turbocompound diesel engine
Comparative study on different water/steam injection layouts for fuel reduction in a turbocompound diesel engine
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涡轮复合柴油机不同水/蒸汽喷射布局减油效果的对比研究
DOI：
10.1016/j.enconman.2018.06.084
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发表时间：
2018-09
影响因子：
10.4
通讯作者：
Yong Yin
中科院分区：
文献类型：
--
作者：
Rongchao Zhao;Zhongbo Zhang;Weilin Zhuge;Yangjun Zhang;Yong Yin
Waste heat recovery is considered to be promising way to reduce fuel consumption of the internal combustion engines. Turbocompounding and water/steam injections are two kinds of methods to recover waste heat from the exhaust. This paper focuses on the impacts of different water/steam injection layouts on the fuel saving potentials of a turbocompound engine. Firstly, the simulation model for an 11-L diesel turbocompound engine is established and validated against experimental data. It is shown that the model obtains high accuracy on predicting the engine BSFC, power, in-cylinder peak pressure, exhaust temperature, etc. Based on the simulation model, the impacts of intake port water injection, in-cylinder water/steam injection and turbocharger turbine (CT) inlet steam injection on the engine BSFC are investigated. The influences of injection parameters including injection mass ratio, temperature and timing on the engine performance are studied in detail. The influence mechanisms of the water/steam injection on the thermodynamic cycle performance are also discussed thoroughly. The results show that merely liquid water injection at intake port or in cylinder cannot obtain fuel reduction. It is mainly due to the fact that water evaporating lowers the in-cylinder temperature, resulting in larger ignition delay and lower in-cylinder pressure. Steam injections in cylinder or at CT inlet can both achieve significant fuel reductions. At engine 1300 rpm condition, the steam injection in cylinder or at CT inlet can reduce the BSFC by 10% and 3.5%, respectively.
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影响因子：
11.2
作者：
Jianqin Fu;Jing-ping Liu;Yong Wang;Banglin Deng;Yanping Yang;Ren-hua Feng;Jing Yang
通讯作者：
Jianqin Fu;Jing-ping Liu;Yong Wang;Banglin Deng;Yanping Yang;Ren-hua Feng;Jing Yang
影响因子：
6.4
作者：
Rongchao Zhao;W. Zhuge;Yangjun Zhang;Yong Yin;Zhen Chen;Zhigang Li
通讯作者：
Rongchao Zhao;W. Zhuge;Yangjun Zhang;Yong Yin;Zhen Chen;Zhigang Li
影响因子：
11.2
作者：
G. Pasini;G. Lutzemberger;S. Frigo;S. Marelli;M. Ceraolo;R. Gentili;M. Capobianco
通讯作者：
G. Pasini;G. Lutzemberger;S. Frigo;S. Marelli;M. Ceraolo;R. Gentili;M. Capobianco
影响因子：
9
作者：
Sipeng Zhu;Sheng Liu;S. Qu;K. Deng
通讯作者：
Sipeng Zhu;Sheng Liu;S. Qu;K. Deng
影响因子：
9
作者：
I. Briggs;G. McCullough;S. Spence;R. Douglas
通讯作者：
I. Briggs;G. McCullough;S. Spence;R. Douglas