Study on improving emission conversion efficiency of three-way catalyst equipped in carburetor motorcycle by air supplement system

Three-way catalytic converter (TWC) is considered as the most effective solution to reduce emissions in new electric fuel injection engines. The usage of the TWC on carburetor system will not promote the advantages because the carburetor system could not guarantee a suitable ratio of air and fuel. I...

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Bibliographic Details
Published in:International journal of ambient energy 2022-12, Vol.43 (1), p.2137-2145
Main Authors: Tien, Nguyen Duy, Quang, Khong Vu, Luong, Nguyen The, Tuyen, Pham Huu, Khanh, Nguyen Duc
Format: Article
Language:English
Subjects:
after treatment system
Air supplement
three-way catalyst
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Summary:Three-way catalytic converter (TWC) is considered as the most effective solution to reduce emissions in new electric fuel injection engines. The usage of the TWC on carburetor system will not promote the advantages because the carburetor system could not guarantee a suitable ratio of air and fuel. In this experimental study, an air supplement system (ASS) has been provided on a carburetor motorcycle equipped with the TWC to supply clean air into exhaust manifold to ensure the existence of oxygen elements in exhaust gases for the enhancement of oxidation environment in the converter. The performance and emission characteristics of the engine and the conversion efficiency of the TWC in the cases of with and without the ASS have been evaluated. The results show that the ASS affects the engine performance, emission level reduces remarkably for both HC and CO components, however, the conversion efficiency of NO x is dropped.
ISSN:0143-0750
2162-8246
DOI:10.1080/01430750.2020.1725635