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논문 기본 정보

자료유형
학술저널
저자정보
NaimaIssa Ahmed (National Korea Maritime & Ocean University) Jeong Kuk Kim (National Korea Maritime & Ocean University) Su-Jeong Choe (National Korea Maritime & Ocean University) Jae-Hyuk Choi (National Korea Maritime & Ocean University) Won-Ju Lee (National Korea Maritime & Ocean University)
저널정보
한국마린엔지니어링학회 Journal of Advanced Marine Engineering and Technology (JAMET) 한국마린엔지니어링학회지 제49권 제1호
발행연도
2025.2
수록면
13 - 19 (7page)
DOI
10.5916/jamet.2025.49.1.13

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초록· 키워드

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Design modifications alone in marine diesel engines are not sufficient to meet the stringent emission regulations. Therefore, incorporation of exhaust aftertreatment systems such as diesel particulate filters has proven to be essential in reducing exhaust gas emissions. This study investigated the changes in exhaust gas flow characteristics including inlet velocity, inlet temperature, porosity of the filter, and the filter location in the diesel particulate filter affect the back pressure using computational fluid dynamics. Results showed a minimum and maximum back pressure of 31.44 mbar and 49.71 mbar respectively. The back pressure decreased by 3.21% with the increase in inlet temperature from 350°C to 431°C and by 0.07% as the porosity of the filters was increased from 60% to 70%, and by 0.04% from 70% to 80%. However, the back pressure increased by 52.92% when the inlet velocity was increased from 7.4 m/s to 10.3 m/s. Based on the filter location, velocity vector distributions showed that the closer filter to the exhaust gas inlet had a high velocity concentrated at the center, which is non-uniform. The results provide insights to enhance the stability, performance, and reliability of diesel particulate filters in marine diesel engines.

목차

Abstract
1. Introduction
2. Numerical Analysis
3. Simulation Results
4. Discussions
5. Conclusion
References

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