| 제목 |
촉매를 고려한 배압 계산에서의 인자 결정 연구 |
| 분야 |
엔진 및 연소 |
| 언어 |
Korean |
| 저자 |
이원근(현대자동차), 임효재(호서대학교) |
| Key Words |
Catalytic converter(촉매변환장치), Pressure loss(압력손실), Geometric surface area(GSA, 기하학적 표면적), Open frontal area(OFA, 전면개방면적) |
| 초록 |
A parametric study was conducted on pressure drop in a catalytic converter for automobile. In this work, we proposed a new pressure drop relation which contains the various parameters needed to calculate and got a few results. In a monolith of catalyst, the flow originally turbulent flow changes to laminar flow and thus the pressure drop through the monolith is linearly proportional to the velocity. The exhaust pressure is doubly affected by the increase of mean velocity and length when we decrease the diameter of monolith while the volume keeps constant. Theoretical parameters such as a and β are suggested to use as a reference value when there is no a experimental data. Especially in the part load test, these values should be modified to consider the property change of exhaust gas. |
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