Numerical investigation of twin swirl application in diesel engine combustion

Calik, Alper Tolga; Taşkıran, Özgür Oğuz; Mehdiyev, Rafig

doi:10.1016/j.fuel.2018.03.049

Cited by 11 publications

(6 citation statements)

References 12 publications

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“…As the engine speed increases, flow rate increases with a corresponding increase in swirl and turbulence. This increases the rate of fuel evaporation, mixing of fuel vapor and air and combustion that leads to improved combustion efficiency [19,61,62]. Swirl is used in many modern CC designs to enhance the burning process and achieve greater combustion stability [63].…”

Section: Incorporating Guide Vanesmentioning

confidence: 99%

A Review of Performance-Enhancing Innovative Modifications in Biodiesel Engines

Khan

2020

Energies

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The ever-increasing demand for transport is sustained by internal combustion (IC) engines. The demand for transport energy is large and continuously increasing across the globe. Though there are few alternative options emerging that may eliminate the IC engine, they are in a developing stage, meaning the burden of transportation has to be borne by IC engines until at least the near future. Hence, IC engines continue to be the prime mechanism to sustain transportation in general. However, the scarcity of fossil fuels and its rising prices have forced nations to look for alternate fuels. Biodiesel has been emerged as the replacement of diesel as fuel for diesel engines. The use of biodiesel in the existing diesel engine is not that efficient when it is compared with diesel run engine. Therefore, the biodiesel engine must be suitably improved in its design and developments pertaining to the intake manifold, fuel injection system, combustion chamber and exhaust manifold to get the maximum power output, improved brake thermal efficiency with reduced fuel consumption and exhaust emissions that are compatible with international standards. This paper reviews the efforts put by different researchers in modifying the engine components and systems to develop a diesel engine run on biodiesel for better performance, progressive combustion and improved emissions.

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Section: Incorporating Guide Vanesmentioning

confidence: 99%

A Review of Performance-Enhancing Innovative Modifications in Biodiesel Engines

Khan

2020

Energies

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“…Recently, various types of research related to piston bowl shapes have been conducted to improve fuel consumption and reduce harmful pollutants of CI engine [61][62][63][64][65][66][67][68][69][70][71][72][73]. For instance, Jaichandar et al [63] studied the performance and emissions parameters in a biodiesel fueled DI diesel engine for different combustion chambers such as Toroidal Combustion Chamber (TCC), Hemispherical Combustion Chamber (HCC) and Shallow depth Combustion Chamber (SCC).…”

Section: Combustion With Swirl Tumble and Squishmentioning

confidence: 99%

Influence of swirl, tumble and squish flows on combustion characteristics and emissions in internal combustion engine-review

Kaplan

2019

International Journal of Automotive Engineering and Technologies

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This study gives an overview of available literature on flow patterns such as swirl, tumble and squish in internal combustion engines and their impacts of turbulence enhancement, combustion efficiency and emission reduction. Characteristics of in-cylinder flows are summarized. Different design approaches to generate these flows such as directed ports, helical ports, valve shrouding and masking, modifying piston surface, flow blockages and vanes are described. How turbulence produced by swirl, tumble and squish flows are discussed. Effects of the organized flows on combustion parameters and exhaust emission are outlined. This review reveals that the recent investigations on the swirl, tumble and squish flows are generally related to improving in-cylinder turbulence. Thus, more experimental and numerical studies including the impacts of this organized flows on turbulence production, combustion behavior and pollutant formation inside the cylinder are needed.

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“…Three-dimensional numerical simulations enhance understanding of complex physical and chemical processes during in-cylinder flow and combustion in internal combustion engines [7,8]. These simulations reveal the influence of combustion system parameters on the combustion process and emissions [9][10][11]. In this study, the CFD software FIRE was employed to conduct numerical simulations of the proposed combustion system's spray and combustion processes [12].…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation on the Spray Angle of the Dual-layer Hole Nozzle in a Partition Combustion System of the Diesel Engine

Lu Hongkun,

Muhamad Mat Noor,

Li Li

et al. 2024

ARNHT

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To study the effect of the spray angles of the dual-layer hole nozzle on the combustion and emissions performance in the partition combustion system, the in-cylinder spray, mixture formation and combustion processes of the new combustion system were simulated and investigated using AVL FIRE software. The results show that, compared with the variation of the lower-layer spray angles, the change of the upper-layer spray angles has a great influence on the instantaneous heat release rate. The increasing spray angles of the lower-layer holes lead to reduced peak values of the heat release rate in the cylinder. In all the spray angle cases, the first fire area of the cylinder is in the B zone of the combustion chamber. Compared with lower-layer spray angle, the upper-layer spray angle has a greater impact on the airflow disturbance in the combustion chamber. Appropriately increasing the upper-layer spray angle facilitates the mixing of fuel and air in the combustion chamber and reduces the unburnt fuel equivalence ratio. When the spray angles of the upper- and lower-layer holes are 157° and 112°, respectively, the combustion indicates power has the largest value of 12.18 kW. At the same time, the Soot emission is also the smallest, with a value of 0.52 g/kW·h.

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Numerical investigation of twin swirl application in diesel engine combustion

Cited by 11 publications

References 12 publications

A Review of Performance-Enhancing Innovative Modifications in Biodiesel Engines

A Review of Performance-Enhancing Innovative Modifications in Biodiesel Engines

Influence of swirl, tumble and squish flows on combustion characteristics and emissions in internal combustion engine-review

Numerical Simulation on the Spray Angle of the Dual-layer Hole Nozzle in a Partition Combustion System of the Diesel Engine

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