한국대기환경학회지 (Journal of Korean Society for Atmospheric Environment)

  • 제33권4호
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  • Pages.306-318
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  • 2017
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  • 1598-7132(pISSN)
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  • 2383-5346(eISSN)
한국대기환경학회 (Korean Society for Atmospheric Environment)
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연료 활성화를 위한 디젤 미립화 장치의 수치해석 연구

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)
  • 투고 : 2017.06.15
  • 심사 : 2017.08.09
  • 발행 : 2017.08.31
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초록

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).

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피인용 문헌

  1. Improvement of liquid fuel atomization for an internal engine using an auxiliary device vol.35, pp.10, 2018, https://doi.org/10.1007/s11814-018-0106-9
  2. Evaluation of the cavitation effect on liquid fuel atomization by numerical simulation pp.1975-7220, 2018, https://doi.org/10.1007/s11814-018-0141-6