PCCI Operation with Early Injection of Conventional Diesel Fuel

Kanda, Tomoyuki; Hakozaki, Takazo; Uchimoto, Tatsuya; Hatano, Jyunichi; Kitayama, Naoto; Sono, Hiroshi

doi:10.4271/2005-01-0378

Cited by 163 publications

(60 citation statements)

References 6 publications

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“…Plenty of studies [1][2][3][4] have demonstrated that the Premixed Charge Compression Ignition (PCCI) combustion strategy can be a practical solution to meet the increasingly stringent emission regulations due to its potential for suppressing the formation of nitrogen oxides (NO x ) and soot simultaneously. Premixed combustion with a long ignition delay allows sufficient time for the formation of a uniform mixture before the start of combustion.…”

Section: Introductionmentioning

confidence: 99%

CFD Investigation into Diesel PCCI Combustion with Optimized Fuel Injection

et al. 2011

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A multi-pulse injection strategy for premixed charge compression ignition (PCCI) combustion was investigated in a four-valve, direct-injection diesel engine by a computational fluid dynamics (CFD) simulation using KIVA-3V code coupled with detailed chemistry. The effects of fuel splitting proportion, injection timing, spray angles, and injection velocity were examined. The mixing process and formation of soot and nitrogen oxide (NO x ) emissions were investigated as the focus of the research. The results show that the fuel splitting proportion and the injection timing impacted the combustion and emissions significantly due to the considerable changes of the mixing process and fuel distribution in the cylinder. While the spray, inclusion angle and injection velocity at the injector exit, can be adjusted to improve mixing, combustion and emissions, appropriate injection timing and fuel splitting proportion must be jointly considered for optimum combustion performance.Keywords: diesel combustion; KIVA-3V; split injection; premixed charge compression ignition; emissions Acronyms: ATDC = after top dead centre; CO = carbon monoxide; EGR = exhaust gas recirculation; EVC = exhaust valve close; EVO = exhaust valve opening; HCCI = homogeneous charge compression ignition; HC = hydrocarbon; HRR = heat release rate; HSDI = high speed direct injection; HTHR = high temperature heat release; ISFC = indicated specific fuel consumption; IVC = intake valve close; IVO = intake valve OPEN ACCESSEnergies 2011, 4 518 opening; LTC = low temperature combustion; NO x = nitrogen oxides; PCCI = premixed charge compression ignition; PRR = pressure rise rate; TDC = top dead centre; TSC = two-stage combustion; UHC = unburned hydrocarbon

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Section: Introductionmentioning

confidence: 99%

CFD Investigation into Diesel PCCI Combustion with Optimized Fuel Injection

et al. 2011

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“…One approach to reduce the emissions in a diesel engine is PCCI which has been studied over the past years by many researchers using engine experiments [59][60][61][62][63][64][65][66][67] and simulation studies [68][69][70][71]. The basic idea of PCCI is to enhance mixing and evaporation by an early fuel injection in the compression cycle before TDC.…”

Section: Low Temperature Combustionmentioning

confidence: 99%

Investigation of Cluster-Nozzle Concepts for Direct Injection Diesel Engines

Won

Peters

2009

Atomiz Spr

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“…This shows how the EPI strategies are quite more stable than what is usually encountered in PCCI (around 2 − 4) [11] or HCCI (around 15) [12] combustion strategies. This aspect therefore does not represent an issue for the introduction of the EPI strategy in an engine.…”

Section: Nvh Evaluationmentioning

confidence: 69%

“…when there is no heat released at the stoichiometric location. In reactive conditions, the high local temperature in that zone has a negative effect on the mixing process [11]. García [12] details that this is due to a reduction in local density and proposes a correction of the previous equation with a factor (ρ mix /ρ comb ) 0.5 , where ρ mix is the local (in stoichiometric conditions) density of the mixture fuel/gas in inert conditions and ρ comb the local density of the mixture in reactive conditions.…”

Section: Diesel Combustion Strategies and Pollutant Emissionsmentioning

confidence: 99%

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Study of the association of premixed and diffusive combustion processes on the combustion and pollutant emissions in a mid-size Diesel engine

Arthozoul¹

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PCCI Operation with Early Injection of Conventional Diesel Fuel

Cited by 163 publications

References 6 publications

CFD Investigation into Diesel PCCI Combustion with Optimized Fuel Injection

CFD Investigation into Diesel PCCI Combustion with Optimized Fuel Injection

Investigation of Cluster-Nozzle Concepts for Direct Injection Diesel Engines

Study of the association of premixed and diffusive combustion processes on the combustion and pollutant emissions in a mid-size Diesel engine

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