Evaluation of injection and ignition schemes for the ultra-lean combustion direct-injection LPG engine to control particulate emissions

Keunsoo Kim, Junghwan Kim, Seungmook Oh, Changup Kim and Yonggyu Lee

Applied Energy, 2017, vol. 194, issue C, 123-135

Abstract: The high level of particulate emission in ultra-lean combustion direct injection engine was obstacles for real application and satisfying the further upcoming regulation. The use of LPG (liquefied petroleum gas) in lean direct injection engines has the potential to reduce carbon-related emissions owing to its simple structure, and it can become an easily stratified mixture because of its higher vapor pressure. In this respect, the effects of the injection and ignition schemes on combustion and emission characteristics, including particle emission of ultra-lean combustion through LPG, were investigated. Four different injections schemes in order for forming stratified mixture and two ignition schemes (single charge ignition and multi-charge ignition) were employed to achieve simultaneous harmful emissions and fuel consumption reduction.

Keywords: Liquefied petroleum gas (LPG); Lean-burn; Direct-injection; Spark-ignition; Emission characteristics; Particulate matter (PM); Multi-charge ignition (search for similar items in EconPapers)
Date: 2017
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Citations: View citations in EconPapers (16)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:appene:v:194:y:2017:i:c:p:123-135

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DOI: 10.1016/j.apenergy.2017.03.012

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