Simulation for high efficiency liquefied petroleum gas engine development

Seang Wock Lee, Yasuhiro Daisho

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)1201-1208
Number of pages8
JournalProceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering
Volume218
Issue number10
Publication statusPublished - 2004 Oct

Fingerprint

Gas engines
Liquefied petroleum gas
Crude oil
Liquids
Gases
Alternative fuels
Boiling point
Direct injection
Engine cylinders
Diesel fuels
Internal combustion engines
Electric sparks
Ignition
Numerical methods
Tuning
Physical properties
Viscosity
Engines

Keywords

  • Alternative fuel
  • LPG
  • Spray/CFD (computational fluid dynamics)

ASJC Scopus subject areas

  • Mechanical Engineering
  • Automotive Engineering

Cite this

Simulation for high efficiency liquefied petroleum gas engine development. / Lee, Seang Wock; Daisho, Yasuhiro.

In: Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, Vol. 218, No. 10, 10.2004, p. 1201-1208.

Research output: Contribution to journalArticle

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