Homogeneous charge compression ignition (HCCI) and partially premixed combustion (PPC) in compression ignition engine with low octane gasoline

An, Yanzhao; Jaasim, Mohammed; Vallinayagam, R.; Pérez, Francisco E. Hernández; Sim, Jaeheon; Chang, Junseok; Im, Hong G.; Johansson, Bengt

doi:10.1016/j.energy.2018.06.057

Cited by 86 publications

(27 citation statements)

References 46 publications

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“…It was used to study different coal flames (Tufano et al 2018;Wan et al 2019;Rieth et al 2019;, assess the stabilization mechanism of supersonic lifted flames (Bouheraoua et al 2017) and lifted hydrogen flames (Benim et al 2019), classify regions of industrial burners by the combustion regime , study auto-ignition of supercritical hydrothermal flames (Song et al 2019), analyze extinction and re-ignition events (Sripakagorn et al 2004) and gain insight into partially premixed DME flames . It was further applied to scram jets (Shen et al 2020;, Moderate or Intense Low oxygen Dilution (MILD) combustion (Amaduzzi et al 2020), compression ignition engines (An et al 2018), double-cone burners , coaxial diffusion flames , edge flames (Duboc et al 2019) and jet-in-hot-coflow flames in conjunction with tangential stretching rate analysis (Li et al 2019). In order to evaluate the flame index experimentally, Rosenberg et al (2013Rosenberg et al ( , 2015 introduced tracer gases.…”

Section: Introductionmentioning

confidence: 99%

Identification of Flame Regimes in Partially Premixed Combustion from a Quasi-DNS Dataset

Zirwes

Zhang

Habisreuther

et al. 2020

Flow Turbulence Combust

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Identifying combustion regimes in terms of premixed and non-premixed characteristics is an important task for understanding combustion phenomena and the structure of flames. A quasi-DNS database of the compositionally inhomogeneous partially premixed Sydney/Sandia flame in configuration FJ-5GP-Lr75-57 is used to directly compare different types of flame regime markers from literature. In the simulation of the flame, detailed chemistry and diffusion models are utilized and no turbulence and combustion models are used as the flame front and flow are fully resolved near the nozzle. This allows evaluating the regime markers as a post-processing step without modeling assumptions and directly comparing regime markers based on gradient alignment, drift term analysis and gradient free regime identification. The goal is not to find the correct regime marker, which might be impossible due to the different set of assumptions of every marker and the generally vague definition of the partially premixed regime itself, but to compare their behavior when applied to a resolved turbulent flame with partially premixed characteristics.

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Section: Introductionmentioning

confidence: 99%

Identification of Flame Regimes in Partially Premixed Combustion from a Quasi-DNS Dataset

Zirwes

Zhang

Habisreuther

et al. 2020

Flow Turbulence Combust

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“…Most of these concepts combine high pressure Gasoline Direct Injection, multiple injections per cycle, low and high Exhaust Gas Recirculation, variable valve timing, etc. in order to use gasoline in compression ignition engines with high compression ratio [15,16]. Some versions of these concepts, like Spark Controlled Compression Ignition (SPCCI), are commercially available from year 2019.…”

Section: Modern Internal Combustion Engine Technologiesmentioning

confidence: 99%

Why we should invest further in the development of internal combustion engines for road applications

Lešnik

Kegl

Cruz

2020

Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles

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The majority of on-road vehicles today are powered by internal combustion engines, which are, in most cases, burning petroleum-derived liquid fuels mixed with bio-components. The power to weight ratio of internal combustion engines combined with the high energy content of conventional fuels, which can be refilled easily in matter of minutes, makes them ideal for all kinds of road transportation. Since the introduction of EURO emissions norms, the emissions from the Transport sector in the European Union have undergone significant reduction. There are several alternatives to fossil fuels with similar properties, which can replace their usage in the Transport sector. The main focus of research in recent decades has been on biofuels, which can be produced from several sources. The production of biofuels is usually energy more intensive than production of fossil fuels, but their usage can contribute to emission reduction in the Transport sector. In recent years, a lot of effort was also put into promotion of electric vehicles as zero emissions vehicles. This statement should be reconsidered, since the greenhouse impact of electrical vehicles is not negligible. Conversely, in some cases, an electrical vehicle can have an even higher emission impact than modern vehicles with sophisticated internal combustion engines. This is characteristic for countries where the majority of the electricity is produced in coal power plants. With the decrease of greenhouse gas emissions in the Electricity Production sector, and with the increase of battery capacity, the role of electric vehicles in the Transport sector will probably increase. Despite significant research and financial investments in electric vehicles development, the transport sector in near future will be mostly powered by internal combustion engines and petroleum-derived liquid fuels. The amount of pollution from transport sector will be further regulated with stricter emission norms combined with smaller amount of alternative fuel usage.

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“…In this study, he also showed that engine speed has almost no effects on ϕ-sensitivity. Several studies were performed to test and verify PFS, as well as some premixed controlled compression ignition (PCCI) experiments using different fuels such as a gasoline–diesel blend, 27,28 a gasoline–ethanol blend, 29–31 a low-octane gasoline, 32 some other PRFs, 29,33 ethanol, 34 and so on.…”

Section: Introductionmentioning

confidence: 99%

Improving the controllability of partial fuel stratification at low boost levels by applying a double late injection strategy

Yan

Gainey

Hariharan

et al. 2020

International Journal of Engine Research

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This experimental study has two objectives. The first objective is to investigate the combustion performance of partial fuel stratification on a high compression ratio, light-duty diesel engine at a practical boost level of 1.6 bar. The second objective is to study the effects of a double late injection strategy on the ϕ-stratification gradient and combustion performance of partial fuel stratification, and verify the improvement in controllability with insufficient gasoline phi-sensitivity (i.e. gasoline does not exhibit strong phi-sensitivity at lower pressure conditions). The total targeted fuel flow rate was 16 mg/cycle throughout all of the experiments. Consequently, the global charge–mass equivalence ratio was fixed at 0.35. In order to investigate the combustion performance, start of injection timing sweeps were performed from –140° to –40° after top dead center, with the split fraction (i.e. the premixed fuel portion) varying from 70% to 90%. The combustion phasing was fixed at 8.6° after top dead center by adjusting the exhaust gas recirculation rate.

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Homogeneous charge compression ignition (HCCI) and partially premixed combustion (PPC) in compression ignition engine with low octane gasoline

Cited by 86 publications

References 46 publications

Identification of Flame Regimes in Partially Premixed Combustion from a Quasi-DNS Dataset

Identification of Flame Regimes in Partially Premixed Combustion from a Quasi-DNS Dataset

Why we should invest further in the development of internal combustion engines for road applications

Improving the controllability of partial fuel stratification at low boost levels by applying a double late injection strategy

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