2011 Fiscal Year Final Research Report
NOx Reduction from Marine Diesels under Lower-load Conditions via Utilization of Closely-aligned Double-needle Inje ctor
| Project/Area Number |
21360435
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Naval and maritime engineering
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| Research Institution | Kyushu University |
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Principal Investigator |
TAJIMA Hiroshi 九州大学, 総合理工研究院, 准教授 (70179688)
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| Co-Investigator(Kenkyū-buntansha) |
TAKASAKI Koji 九州大学, 総合理工学研究院, 教授 (30154769)
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| Project Period (FY) |
2009 – 2011
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| Keywords | 船舶工学 / 大気汚染防止・浄化 / 熱工学 / ディーゼルエンジン / PCCI燃焼 |
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| Research Abstract |
A novel approach, which utilizes the PCCI combustion of Light Cycle Oil (LCO) of low-cetane number and low-sulfur content, is proposed to overcome the antipollution difficulties in large marine diesels especially under lower-load conditions where the conventional measures such as EGR or SCR are hard to be effective. Direction control of spray propagation was introduced via merging sprays from a closely-aligned double-needle injector to avoid wall wetting and to promote mixture stratification. Also thanks to water emulsification of LCO lengthening the ignition delay, practical and economical solution against air pollution in marine sector is within reach for the first time.
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Research Products
(14 results)
