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논문 기본 정보

자료유형
학술저널
저자정보
Mu-kyeong Kang (Korea Marine Equipment Research Institute) Kyu-young Min (Pusan National University) Sun-ung Park (Seohan ENP) Jong-dae Choi (Seohan ENP)
저널정보
한국마린엔지니어링학회 Journal of Advanced Marine Engineering and Technology (JAMET) 한국마린엔지니어링학회지 제46권 제1호
발행연도
2022.2
수록면
1 - 8 (8page)
DOI
10.5916/jamet.2022.46.1.1

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초록· 키워드

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High-speed diesel engines that are widely distributed in small coastal ships discharge nitrogen oxides (NOx) and other air pollutants. In this study, experimental investigations were conducted on the possibility of treating air pollutants when applying lowpressure exhaust gas recirculation (LP EGR), diesel oxidation catalyst (DOC), and diesel particulate filter (DPF), in accordance with the expectation of stricter regulations on ship-discharged air pollution. The experiment was conducted on a high-speed diesel engine for a 500 ps ship that uses diesel and consists of an EGR system that adopts an LP method for efficient air supply and cooling effect of exhaust gas. After the LP EGR, a DOC-DPF was additionally installed in the exhaust pipe to experiment on the treatment performance of other pollutants such as carbon monoxide (CO), hydrocarbon (HC), and smoke. The study demonstrated that NOX emissions were reduced by 75.9%; from 7.56 g/kWh to 1.82 g/kWh, when LP EGR was operated at rates within the range of no output loss. This figure satisfies the International Maritime Organization (IMO) Tier III emission standard. Finally, when the DOC-DPF was additionally operated on the LP EGR, NOX emissions could be reduced to 1.83 g/kWh and smoke concentration below 1%, and HC was reduced by up to 95% and CO by up to 94%.

목차

Abstract
1. Introduction
2. Experimental device and method
3. Experimental results and study
4. Conclusion
References

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