Effect of a new wet soot absorber on soot removal of a diesel engine

In the following investigation, a submerged-type Wet Soot Absorber (WSA) is studied, and its capability to reduce the soot emission level of a four cylinder, Direct Injection (DI) diesel engine is evaluated. The WSA can provide a large contact area between water and exhaust flow, which increases the...

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Bibliographic Details
Published inScientia Iranica. Transaction B, Mechanical Engineering Vol. 21; no. 3; p. 569
Main Authors Ghazikhani, M, Feyz, M E, Khazaee, I, Ghazikhani, A, Akherat, M J Mahmoudzadeh
Format Journal Article
LanguageEnglish
Published 2014
Subjects
Chambers
Contact
Cylinders
Diesel engines
Emission analysis
Engines
Exhaust
Soot
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Summary:In the following investigation, a submerged-type Wet Soot Absorber (WSA) is studied, and its capability to reduce the soot emission level of a four cylinder, Direct Injection (DI) diesel engine is evaluated. The WSA can provide a large contact area between water and exhaust flow, which increases the soot capturing probability. Hence, the system can be more compact and suitable for vehicle engine applications. The ECE-R49 standard test is followed to assess the effect of the WSA on an engine performance and soot emission. The experiments revealed that a soot removal efficiency of 70% is attained under full-load engine operating conditions, due to the high momentum of exhaust gas flow entering the chamber of the unit and providing more flow penetration into the water. Also, further bubble break-up in high gas velocity results in a larger liquid-gas interface and contributes to better soot removal. The minor negative effects of utilizing the WSA on Brake Specific Fuel Consumption are also compared with those of conventional DPFs, and the advantages of WSA are discussed.
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ISSN:1026-3098