Optimum design for intake and exhaust system of a heavy-duty diesel engine by using DFSS methodology

Wang, Tae Joong

doi:10.1007/s12206-018-0650-6

Cited by 14 publications

(4 citation statements)

References 25 publications

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“…Due to the complex and variable turbulent flow inside the air filter, some necessary assumptions need to be made. Therefore, the following assumptions are made: (1) The physical parameters of the fluid are constant and it is an incompressible single-phase Newtonian fluid; (2) Assuming that the solid components within the air filter model are evenly distributed and do not deform; (3) When the air filter operates in a stable state, the temperature remains basically unchanged, or the temperature change can be ignored.…”

Section: Assumptionmentioning

confidence: 99%

“…The air filter provides sufficient and clean air for the engine, which is one of the key components of the engine, and its performance advantages and disadvantages largely affect the engine's power, economy and emissions [1,2]. How to improve the flow field characteristics inside the air filter and reduce pressure loss is the key to improving engine power and fuel economy [3].…”

Section: Introductionmentioning

confidence: 99%

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Optimization design of air filter housing structure based on computational fluid dynamics

Liu,

Calderon

2024

Third International Conference on Advanced Manufacturing Technology and Electronic Information (AMTEI 2023)

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The amount of intake resistance of the air filter has a significant impact on engine performance. This article proposes a structural optimization plan to address the issue of excessive intake resistance in an engine air filter. Based on computational fluid dynamics, simulation analysis was conducted on the pressure and velocity fields inside the air filter before and after optimization. The analysis results showed that the velocity uniformity of the air flow inside the optimized air filter was improved, and the intake resistance was significantly reduced. The physical inspection and inspection of the optimized air filter trial sample showed that the intake resistance was lower than the standard allowable value, and all performance indicators met the requirements, proving the effectiveness of the optimization plan.

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Section: Assumptionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Optimization design of air filter housing structure based on computational fluid dynamics

Liu,

Calderon

2024

Third International Conference on Advanced Manufacturing Technology and Electronic Information (AMTEI 2023)

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“…e results indicated that the flow performance of the engine inlet was improved. Wang [33] used the design of six sigma (DFSS) methodology to optimize the engine intake and exhaust system. e results showed that the optimized emission performance complied with emission regulations, and the fuel economy was significantly improved.…”

Section: Introductionmentioning

confidence: 99%

Optimization Analysis of Engine Intake System Based on Coupling Matlab-Simulink with GT-Power

Jiang

Wen

et al. 2021

Mathematical Problems in Engineering

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In the work, the suitable volumetric efficiency is very important for the gasoline engine to achieve the aim of energy-saving and emission reduction. Thus, the intake system characteristics, such as intake manifold length, diameter, volumetric efficiency, and valve phase, should be investigated in detail. In order to investigate the performance optimization of the engine intake system, an optimization model of the engine intake system is developed by the GT-Power coupled with Matlab-Simulink and validated by the experimental results under the different conditions at full load. The engine power-, torque-, and brake-specific fuel consumption are defined as the result variables of the optimization model, and the length and diameter of the intake manifold are defined as the independent variables of the model. The results show that the length of intake manifold has little influence on the engine power and BSFC, and the length of intake manifold has a great impact on the performance index at high speed. In addition, the engine volumetric efficiency is the highest when the length of intake manifold is in the range of 240 and 250 mm. The engine BSFC improved by variable valve timing is significant compared with the original result. Finally, the improvement suggestions for the performance enhancement of the gasoline engine are proposed.

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“…There are studies of physical processes in the exhaust system based on mathematical modelling in order to improve the technical and environmental parameters of piston engines. For example, in the articles [4][5][6] the adjustment of the geometric dimensions of the parts of the exhaust system of gasoline engines is made, and in the articles [7][8][9] similar studies are performed with respect to diesel engines. Kumar K.M.…”

Section: Introductionmentioning

confidence: 99%

Heat transfer intensity of pulsating gas flows in the exhaust system elements of a piston engine

2019

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Internal combustion engines are the most common sources of energy among heat engines. Therefore, the improvement of their design and workflow is an urgent task in the development of world energy. Thermal-mechanical perfection of the exhaust system has a significant impact on the technical and economic performance of piston engines. The article presents the results of experimental studies of gasdynamics and heat exchange of pulsating gas flows in the exhaust system of a piston engine. Studies were carried out on a full-scale model of a single-cylinder engine. The article describes the instrument-measuring base and methods of experiments. The heat transfer intensity was estimated in different elements of the exhaust system: the exhaust pipe, the channel in the cylinder head, the valve assembly. Heat transfer studies were carried out taking into account the gas-dynamic nonstationarity characteristic of gas exchange processes in engines. The article presents data on the influence of gas-dynamic and regime factors on the heat transfer intensity. It is shown that the restructuring of the gas flow structure in the exhaust system occurs depending on the engine crankshaft speed, this has a significant impact on the local heat transfer coefficient. It has been established that the heat transfer intensity in the valve assembly is 2-3 times lower than in other elements of the exhaust system.

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Optimum design for intake and exhaust system of a heavy-duty diesel engine by using DFSS methodology

Cited by 14 publications

References 25 publications

Optimization design of air filter housing structure based on computational fluid dynamics

Optimization design of air filter housing structure based on computational fluid dynamics

Optimization Analysis of Engine Intake System Based on Coupling Matlab-Simulink with GT-Power

Heat transfer intensity of pulsating gas flows in the exhaust system elements of a piston engine

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