Simulation for high efficiency liquefied petroleum gas engine development

Seang Wock Lee, Yasuhiro Daisho

研究成果: Article査読

3 被引用数 (Scopus)

抄録

It has been recognized that alternative fuels, such as liquid petroleum gas (LPG), have less polluting combustion characteristics than diesel fuel. Furthermore, when LPG direct-injection, stratified-charge combustion can be adopted in the spark-ignition engine in place of the conventional premixed spark-ignition combustion, it will be possible to achieve less polluting and more efficient combustion characteristics. However, the physical properties of LPG, such as boiling point (-40-0°C) and viscosity, differ largely in comparison with current fuels. Therefore, there are many unknown phenomena in the behaviour of spray, mixture formation, and combustion of LPG in the cylinder. These issues make the development of a high-efficiency LPG engine difficult. Thus, in this study, a numerical method has been adjusted to predict the mixture formation and combustion of LPG. KIVA-3 code was used for this purpose, and tuning factors were adjusted by comparing them with the measurements. In the combustion model, the eddy-dissipation combustion model proposed by Magnussen and Hjertager [1] is adopted. The predicted results show favourable agreement with the measurements and the possibility of useful methods to improve engine performance.

本文言語English
ページ(範囲)1201-1208
ページ数8
ジャーナルProceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering
218
10
出版ステータスPublished - 2004 10

ASJC Scopus subject areas

  • Mechanical Engineering
  • Automotive Engineering

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