Reactivity controlled compression ignition (RCCI) combustion strategy: a solution to reduce fuel consumption and emission levels
Publish place: 8th International Conference on Internal Combustion Engines
Publish Year: 1392
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
ICICE08_075
تاریخ نمایه سازی: 11 خرداد 1393
Abstract:
Premixed Compression Ignition (PCI) combustion strategies are promising methods to achieve low engineout NOx and soot emissions and high‐efficiency. However, PCI strategies have failed to see widespreadimplementation due to difficulties controlling the heat release rate and lack of an adequate combustion phasingcontrol mechanism. In this research, a dual‐fuel reactivity controlled compression ignition (RCCI) concept isinvestigated numerically to address advantages of this strategy. In the RCCI strategy two fuels with differentauto‐ignition characteristics are blended inside the combustion chamber. Combustion phasing is controlledby the relative ratios of these two fuels and the combustion duration is controlled by spatial stratificationbetween them. A CFD modeling is used to propose the RCCI strategy to evaluate the ability of this approach inreducing the emissions level and increasing the engine efficiency. A KIVA‐CHEMKIN code is developed to predictthe combustion characteristics of a dual‐fuel RCCI engine.
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Authors
A Gharehghani
PhD Candidate, Mechanical Engineering Department, Amirkabir University of Technology
M Mirsalim
Faculty of Mechanical Engineering Department, Amirkabir University of Technology
R Hoseini
Faculty of Mechanical Engineering Department, Amirkabir University of Technology
S.A Jazayeri
Faculty of Mechanical Engineering Department, K.N Toosi University of Technology
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