An experimental investigation of new chamber geometry on the combustion characteristics, performance and emissions in a light-duty diesel engine

Temizer, İlker; Cihan, Ömer

doi:10.1016/j.fuel.2023.128160

Cited by 4 publications

(1 citation statement)

References 45 publications

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“…For the diesel engine, the structure of the combustion chamber significantly influences the incylinder airflow, the formation of the air-fuel mixture, and the combustion process [1]. Consequently, optimizing the combustion chamber's configuration is crucial for improving air-fuel mixture formation and optimizing the combustion process [2,3].…”

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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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

View full text Add to dashboard Cite

show abstract

Investigation of the Impact of Combustion Chamber Geometry on Engine Combustion and Emission Performance Under Various Fuel Injection Timings With Biodiesel Blending

Wang,

Bao,

et al. 2024

Energy Science & Engineering

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This study uses AVL FIRE 2020 R1 software for simulation and experimental verification to deeply analyze the impact of combustion chamber geometry and biodiesel on diesel engine performance at different injection timings. The study found that: With the advancement of injection timing, the indicated fuel consumption rate, cylinder pressure and NOx emissions of the two combustion systems increased, while the indicated thermal efficiency, temperature and Soot emissions decreased accordingly; The blending of low calorific value biodiesel will increase the indicated fuel consumption rate of the two combustion systems, but at the same time it can effectively reduce NOx and Soot emissions; The T: Turbocharger, C: Charger air cooling, D: Diesel particle filter (TCD) combustion system improves the utilization rate of cylinder air due to its unique combustion chamber geometry, thereby improving combustion performance. Compared with the Omega combustion system, the indicated thermal efficiency of the TCD combustion system increased by 6.16% to 8.38% and the indicated fuel consumption rate decreased by 5.80% to 7.73% when burning four types of fuel. In addition, the in‐cylinder pressure and temperature increased, and it performed better in reducing Soot emissions. The research results show that the TCD combustion system can effectively improve the combustion and emission performance of diesel engines, provide data support for the development of diesel engine combustion systems and the combustion of oxygen‐containing fuels in plateau environments, and provide an important reference for energy conservation and emission reduction.

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Multi-objective optimization of the combustion chamber geometry for a highland diesel engine fueled with diesel/n-butanol/PODEn by ANN-NSGA III

Gao,

Zhang,

Zhang

et al. 2023

Energy

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An experimental investigation of new chamber geometry on the combustion characteristics, performance and emissions in a light-duty diesel engine

Cited by 4 publications

References 45 publications

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

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

Investigation of the Impact of Combustion Chamber Geometry on Engine Combustion and Emission Performance Under Various Fuel Injection Timings With Biodiesel Blending

Multi-objective optimization of the combustion chamber geometry for a highland diesel engine fueled with diesel/n-butanol/PODEn by ANN-NSGA III

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