Journal of Dalian Maritime University >
2016 , Vol. 42 >Issue 3: 111 - 117
DOI: https://doi.org/10.16411/j.cnki.issn1006-7736.2016.03.018
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
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.
YU Yong-hua , TANG Jun , HAN Dong , WANG Qin-peng , YANG Jian-guo . Simulation analysis on injection system retrofitting of marine medium-speed diesel engines[J]. Journal of Dalian Maritime University, 2016 , 42(3) : 111 -117 . DOI: 10.16411/j.cnki.issn1006-7736.2016.03.018
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