大连海事大学学报 >
2016 , Vol. 42 >Issue 3: 111 - 117
DOI: https://doi.org/10.16411/j.cnki.issn1006-7736.2016.03.018
船用中速柴油机燃油系统升级改造仿真分析
收稿日期: 2016-01-05
修回日期: 2016-02-25
网络出版日期: 2016-02-26
基金资助
交通运输部应用基础研究项目（2014329811300）.国家科技支撑计划（2014BAG04B02）.
Simulation analysis on injection system retrofitting of marine medium-speed diesel engines
Received date: 2016-01-05
Revised date: 2016-02-25
Online published: 2016-02-26
余永华 , 唐俊 , 韩冬 , 王勤鹏 , 杨建国 . 船用中速柴油机燃油系统升级改造仿真分析[J]. 大连海事大学学报, 2016 , 42(3) : 111 -117 . DOI: 10.16411/j.cnki.issn1006-7736.2016.03.018
Marine medium-speed diesel engines equipped with mechanical injection systems have the problem of economy and emission performance, especially the deficiency to meet the emission regulations and ship-owners' demands at low speed and low load conditions. To solve this problem, a typical marine medium-speed diesel engine was taken as study object, the original mechanical fuel injection system was retrofitted to high pressure common-rail fuel injection system with same combustion chamber structural parameters. The effect of injector structural parameters and control parameters on oil spray, mixture formation and combustion process were analyzed. Simulation result shows that the retrofitted engine complies with IMO Tier II emission regulation, and has more than 8% economy performance enhancement at low load and near 30% NOx emission reduction at the whole operation range.
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