Journal of ILASS-Korea (한국분무공학회지)

Institute for Liquid Atomization and Spray Systems-Korea (한국분무공학회)
권호 표지

A Numerical Analysis for the Spray Characteristics of Liquified n-butane fuel

액상부탄연료의 분무특성에 관한 수치해석

  • 김성대 (국민대학교 자동차공학전문대학원) ;
  • 이성욱 (국민대학교 기계자동차공학부) ;
  • 동윤희 (국민대학교 자동차공학전문대학원) ;
  • 김산해 (국민대학교 자동차공학전문대학원) ;
  • 이영철 (국민대학교 자동차공학전문대학원) ;
  • 조용석 (국민대학교 기계자동차공학부)
  • Published : 2009.09.30
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Abstract

This research investigated spray characteristics using LPG fuel under compression ignition to contribute to develop a high efficiency LPG fuel is an environmentally-friendly fuel since it emits lower $CO_2$ compare to other conventional fuels. In order to observe spray process, a high speed digital camera and high pressure common-rail injector were applied. Using the spray behaviors of LPG and diesel fuel from the experiment, this research analyzed the mixing process of air-fuel mixture numerically with FLUENT 6.3 when LPG and diesel fuel injected directly into the cylinder while compression stroke occurs. Spray characteristics of LPG fuel was investigated by using numerical method, in which KH-RT model was adapted for phase change. As a result of numerical analysis, this work found out that LPG spray has a wider mixing formation and uniform diffusion of air-fuel mixture compare to diesel.

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References

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