CFD Study of Combustion Chambers for Lower Engine Exhaust Emissions from Diesel Engines Operated in HCCI and Conventional Diesel Mode

Juttu, Simhachalam; S.S, Thipse; Marathe, N. V.; Babu, M. K. Gajendra; Andersson, Öivind

doi:10.4271/2009-26-0027

Cited by 9 publications

(2 citation statements)

References 8 publications

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“…Although the pip and lower bowl shape have a clear, load-dependent influence on emissions and performance, no profile has been found that gives universally better behavior at all loads or for all performance metrics. 55 The simple W-shaped or conical pip design has been featured in numerous engines 56 and has a high expected reliability. 12 The so-called ''step-cone'' pips displace a greater amount of charge from the bowl center, thereby favoring larger bowl diameters.…”

Section: Bowl Pip Geometrymentioning

confidence: 99%

A review of design considerations for light-duty diesel combustion systems

Miles

Andersson

2015

International Journal of Engine Research

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Practical aspects of light-duty diesel combustion system design are reviewed, with an emphasis on design considerations reported by manufacturers and engine design consultancies. The factors driving the selection of compression ratio, stroke-to-bore ratio, and various aspects of combustion chamber geometry are examined, along with the trends observed in these parameters in recently released engines. The interactions among geometric characteristics, swirl ratio, and the fuel injection nozzle parameters are also reviewed.

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Section: Bowl Pip Geometrymentioning

confidence: 99%

A review of design considerations for light-duty diesel combustion systems

Miles

Andersson

2015

International Journal of Engine Research

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“…Knocking at high loads and misfire at low loads limit HCCI [1]. As a result, PCCI -DI is preferred to in place of pure HCCI.…”

Section: Need Of Simulationmentioning

confidence: 99%

Influence of different biodiesel fuels on the PCCI-DI combustion concept for constant speed genset application

Kinikar

Kanase–Patil

Thipse

2022

IOP Conf. Ser.: Earth Environ. Sci.

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Homogenous charge compression ignition (HCCI) is a technology for concurrently reducing nitrogen oxides (NOx) and particulate matters (PM) emissions. Since, the pure HCCI lags in control over combustion phasing, Pre-mixed charge compression ignition (PCCI) method is proposed. To achieve partial homogeneity in PCCI combustion, the air is pre-injected with fuel. The main injection is required for the combination to take place. This paper investigates the impact of using the varying percentages and types of bio-diesels for the constant speed genset application engine. The paper first discus the effect of various ratios of diesel and biodiesel mixtures on the performance parameters like engine power, specific fuel consumption (sfc) and the break thermal efficiency. These effects are caused by the combustion happening inside the combustion chamber which can be seen in pressure, temperature and heat release curves. The result of the simulation finally discusses the formation of NOx and PM emissions during the combustion. These results also provide guidelines for actual testing of the engine with bio-diesel.

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Diesel and DieselLTCCombustion

Andersson

Miles

2014

Encyclopedia of Automotive Engineering

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Conventional and low temperature diesel combustion systems are reviewed from a broad perspective, beginning with a summary of practical design considerations. This material will provide practicing engineers a comprehensive review, and for those new to the field, an overview of what is essential and references for further information. The practical considerations are followed by a description of the fundamental physical processes controlling the combustion process. With this background, an overview of the evolution of the combustion process is provided and the impact of various design parameters on this evolution is discussed. Our objective is to provide the combustion system designer a strong physical understanding to guide his development of modern, low emission, high efficiency diesel combustion systems.

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CFD Study of Combustion Chambers for Lower Engine Exhaust Emissions from Diesel Engines Operated in HCCI and Conventional Diesel Mode

Cited by 9 publications

References 8 publications

A review of design considerations for light-duty diesel combustion systems

A review of design considerations for light-duty diesel combustion systems

Influence of different biodiesel fuels on the PCCI-DI combustion concept for constant speed genset application

Diesel and DieselLTCCombustion

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