[가솔린엔진부문] 촉매변환기 내의 속도분포와 압력강하에 대한 연구 = A Study on the velocity distribution and pressure drop in Catalytic Converter

다국어 초록 (Multilingual Abstract)

Monolithic catalytic converters have been widely used to satisfy the regulations of pollutant emissions in automobiles. The optimum design of inlet and outlet header in catalytic converter can decrease the pressure drop, make the flow distribution uniformed and improve the lifetime of catalytic converter against thermal stress<br/>
In the design of catalytic converter ‘ velocity distribution is more important than pressure drop because pressure drop of the monolith contributed about 80~85% of overall pressure drop. The function of diffuser in catalytic converter is to diffuse the flow and recover the static pressure<br/>
The efficiency of diffuser is increased by rounding the diffuser shape and extending the diffuser length. On the other hand ‘ if the diffuser has equal length but different shapes the velocity distribution in the front of the monolith is almost same. However as the length of diffuser increased, velocity distribution becomes uniform.

목차 (Table of Contents)

• ABSTRACT
  
• 1.서론
  
• 2.실험장치 및 실험방법
  
• 3.결과 및 검토
  
• 4.결론
  
• 참고문헌