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http://dx.doi.org/10.5572/KOSAE.2017.33.4.306

Numerical Study of Diesel Atomization Device for Fuel Activation  

Choi, Sang In (Department of Applied Environmental Science, Kyung Hee University)
Feng, Jia Ping (Department of Applied Environmental Science, Kyung Hee University)
Seo, Ho Seok (EG Power Tech Co., Ltd.)
Kim, Sang Bum (Green Process and Material R&D Gr., KITECH)
Jo, Young Min (Department of Applied Environmental Science, Kyung Hee University)
Publication Information
Journal of Korean Society for Atmospheric Environment / v.33, no.4, 2017 , pp. 306-318 More about this Journal
Abstract
Heavy diesel vehicles are one of major sources of urban fine dust in Korea and other developing countries. In this study, an auxiliary device assisting fuel atomization, which is called FAD (Fuel Activation Device), was closely reviewed through numerical simulation. As calculated, the diesel flow velocity passing across FAD increased up to 1.68 times, and it enhanced the cavitation effect which could improve the injected fuel atomization. Super cavitation phenomenon, which is the most important effect on nozzle injection, has occurred until the cavitation number (${\sigma}$) decreased from 1.15 to 1.09, and atomized droplets via a nozzle of which opening was $500{\mu}m$ distributed less than $200{\mu}m$ in sauter mean diameter (SMD).
Keywords
Diesel; Fuel Activation Device; Cavitation; CFD; SMD;
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Times Cited By KSCI : 1  (Citation Analysis)
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