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논문 기본 정보

자료유형
학술대회자료
저자정보
이준우 (인하대학교) 박범수 (인하대학교) 박상수 (인하대학교) 박경희 (인하대학교) 이창언 (인하대학교)
저널정보
한국자동차공학회 한국자동차공학회 추계학술대회 및 전시회 2010년 한국자동차공학회 학술대회 및 전시회
발행연도
2010.11
수록면
1,021 - 1,026 (6page)

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초록· 키워드

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Dual Loop-EGR is composed of High Pressure Loop(HPL) EGR and Low Pressure Loop(LPL) EGR. While HPL-EGR has difficulties in supplying sufficient amount of EGR, LPL-EGR facilitates the supply of a large amount of EGR using pressure difference by providing recirculated exhaust as an inhaled gas from the rear part of exhaust aftertreatment device such as DPF. Because the temperature of the rear part of DPF is lower than the temperature of the front part of turbine, the size of EGR Cooler can be made with a smaller size. On the other hand, because LPL-EGR has low response rate due to an extended recirculation pipe length, it is hard to be applied to light duty diesel engine which is mainly used in excessive driving condition. Therefore, the basic concept of Dual-Loop EGR is to achieve high response rate and high EGR rate according to driving condition by using HPL-EGR which has high response rate in speed changing section and LPL-EGR which has low response rate in constant speed section.
In this research, Dual Loop-EGR system was constructed by adding LPL-EGR and back pressure device to HPL-EGR-applied light duty diesel engine. NO<SUB>x</SUB> displacement was measured after each of HPL, LPL-EGR and Dual Loop-EGR was applied in certain revolutions and loading conditions. Optimal fraction of Dual Loop-EGR was analyzed during this procedure. Also, general research about Dual Loop-EGR was performed by measuring changes in the amount of fuel consumed.

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Abstract
1. 서론
2. 실험 장치 및 방법
3. 실험결과 및 고찰
4. 결론
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UCI(KEPA) : I410-ECN-0101-2013-556-001770378