지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국유체기계학회 International Journal of Fluid Machinery and Systems International Journal of Fluid Machinery and Systems Vol.5 No.3
- 발행연도
- 2012.9
- 수록면
- 134 - 142 (9page)
- DOI
- http://dx.doi.org/10.5293/IJFMS.2012.5.3.134
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초록· 키워드
오류제보하기
The competition to deliver ultra-low emitting vehicles at a reasonable cost is driving the automotive industry to invest significant manpower and test laboratory resources in the design optimization of increasingly complex exhaust after-treatment systems. Optimization can no longer be based on traditional approaches, which are intensive in hardware use and laboratory testing. The CFD is in high demand for the analysis and design in order to reduce developing cost and time consuming in experiments. This paper describes the development of a comprehensive practical model based on experiments for simulating the performance of automotive three-way catalytic converters, which are employed to reduce engine exhaust emissions. An experiment is conducted to measure species concentrations before and after catalytic converter for different loads on engine. The model simulates the emission system behavior by using an exhaust system heat conservation and catalyst chemical kinetic sub-model. CFD simulation is used to study the performance of automotive catalytic converter. The substrate is modeled as a porous media in FLUENT and the standard k-e model is used for turbulence. The flow pattern is changed from axial to radial by changing the substrate model inside the catalytic converter and the flow distribution and the conversion efficiency of CO, HC and NOx are achieved first, and the predictions are in good agreement with the experimental measurements. It is found that the conversion from axial to radial flow makes the catalytic converter more efficient. These studies help to understand better the performance of the catalytic converter in order to optimize the converter design.
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참고문헌 (19)
참고문헌 신청
Vardi J. / 1968 / Thermal behavior of an exhaust gas catalytic converter / Ind. Eng. Chem-Process Des Dev. 7(1):83~90
Kuo J. C. / Mathematical modeling of CO and HC catalytic converter systems
Harned J. L. / Comparison of catalyst substrate for catalytic converter systems
Oh S. H. / 1982 / Transients of monolithic catalytic converters: response to step changes in feedstream temperature as related to controlling automobile emissions / Ind Eng Chem Res 21:29~37
Pattas K. N. / Transient modeling of 3-way catalytic converters
Kuo J. C. / Mathematical modeling of CO and HC catalytic converter systems
Harned J. L. / Comparison of catalyst substrate for catalytic converter systems
Oh S. H. / 1982 / Transients of monolithic catalytic converters: response to step changes in feedstream temperature as related to controlling automobile emissions / Ind Eng Chem Res 21:29~37
Pattas K. N. / Transient modeling of 3-way catalytic converters
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