[가솔린엔진] 배기규제대응을 위한 이중벽 배기관 기본 설계 연구 = A basic design study of high efficiency double walled exhaust pipe to meet emission control

다국어 초록 (Multilingual Abstract)

In this study, the double walled exhaust tube system was investigated as an effective countermeasure to reduce pollutant exhaust gas emission. especially to reduce pollutant exhaust gas emission at cold start and idling stage, in which the catalyst is not reached to light-off temperature. In this study, it has shown that the double walled exhaust pipe construction can shorten the time to reach to light off temperature of the catalyst in cool start state and reduce the emission of hydro-carbon(HC) significantly due to thermal insulation effect. In the study, 3 dimensional thermal fluid analysis in double walled exhaust system has been done through computational fluid dynamics method. The analytical results were compared with experimentals obtained from specially fabricated bench tester and it had shown excellent conformity in both results. From the present study results basic major data to construct and design the optimum double walled exhaust tube system were achieved.

목차 (Table of Contents)

• ABSTRACT
  
• 1.서론
  
• 2.배기관의 열전달 수치 해석 모델링
  
• 3.성능평가 실험장치 및 방법
  
• 4.실험 결과
  
• 5.연구 결론
  
• 참고문헌