Aerodynamic Design Optimization of a Micro Radial Compressor of a Turbocharger

Atac, Omer Faruk; Yun, Jeong-Eui; Noh, Taehyun

doi:10.3390/en11071827

Cited by 8 publications

(3 citation statements)

References 26 publications

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“…Figure 5 shows the geometric configuration and model mesh employed in the computational fluid dynamics (CFD) analysis of the air intake system conducted in this study using ANSYS CFX. Since the resolution of the mesh defining the computational domain directly affects the quality and cost of the analysis, the geometry and size of the computational mesh were determined using a mesh-independence test [12]. As a result of this test, approximately 4,100,000 meshes were used to construct the model in this study.…”

Section: Numerical Analysismentioning

confidence: 99%

Optimal Design of Off-Road Utility Terrain Vehicle Air Filter Intake

Yun

2021

Energies

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The air filters applied in utility terrain vehicles (UTVs), which are usually driven on dust-prone unpaved roads, employ a two-stage air cleaner that increases the lifespan of the filter element by using a pre-cleaner stage in the air filter intake housing to centrifugally separate any dust particles contained in the intake air before sending the cleaned air to the primary filter. Thus, maximizing the centrifugation capacity by properly modifying the geometry of the intake air passage in the filter housing is important to ensure engine performance and filter lifespan. The geometry of the pre-cleaner air passage was therefore optimized in this study in terms of the inclination angle and air passage location angle using a computational flow analysis to maximize the centrifugal removal of dust particles. The resulting overall pre-cleaner efficiency and overall pre-cleaner efficiency per pressure drop were then used as the objective functions to maximize the dust particle removal capacity according to centrifugation speed. The method demonstrated in this study for optimizing air filter intake geometry can be used to improve and prolong the performance of UTV engines.

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Section: Numerical Analysismentioning

confidence: 99%

Optimal Design of Off-Road Utility Terrain Vehicle Air Filter Intake

Yun

2021

Energies

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“…Therefore, it is very efficient [39]. After obtaining the parameter result, more aerodynamic designs can be optimized [40]. The new optimized design evaluation shows a higher turbocharger efficiency [41].…”

Section: Turbocharging Principlesmentioning

confidence: 99%

Advanced Engine Technologies for Turbochargers Solutions

et al. 2021

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Research in the process of internal combustion engines shows that their efficiency can be increased through several technical and functional solutions. One of these is turbocharging. For certain engine operating modes, the available energy of the turbine can also be used to drive an electricity generator. The purpose of this paper is to highlight the possibilities and limitations of this solution. For this purpose, several investigations were carried out in the virtual environment with the AMESim program, as well as experimental research on a diesel engine for automobiles and on a stand for testing turbochargers (Turbo Test Pro produced by CIMAT). The article also includes a comparative study between the power and torque of the naturally aspirated internal combustion engine and equipped with a hybrid turbocharger. The results showed that the turbocharger has a very high operating potential and can be coupled with a generator without decreasing the efficiency of the turbocharger or the internal combustion engine. The main result was the generation of electrical power of 115 W at a turbocharger shaft speed of 140,000–160,000 rpm with an electric generator shaft speed of 14,000–16,000 rpm. There are many constructive solutions for electrical turbochargers with the generator positioned between the compressor and the turbine wheel. This paper is presenting a solution of a hybrid turbocharger with the generator positioned and coupled with the compressor wheel on the exterior side.

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“…A turbocharger is a device with a compressor and turbine on a single shaft, and the turbine is powered by energy in the engine's exhaust gases to drive the compressor and increase the intake pressure. The design of such turbomachines is widely available in literature such as [43][44][45][46].…”

Section: Turbochargingmentioning

confidence: 99%

Electric Boosting and Energy Recovery Systems for Engine Downsizing

Alshammari

Pesyridis

2019

Energies

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Due to the increasing demand for better fuel economy and increasingly stringent emissions regulations, engine manufacturers have paid attention towards engine downsizing as the most suitable technology to meet these requirements. This study sheds light on the technology currently available or under development that enables engine downsizing in passenger cars. Pros and cons, and any recently published literature of these systems, will be considered. The study clearly shows that no certain boosting method is superior. Selection of the best boosting method depends largely on the application and complexity of the system.

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Aerodynamic Design Optimization of a Micro Radial Compressor of a Turbocharger

Cited by 8 publications

References 26 publications

Optimal Design of Off-Road Utility Terrain Vehicle Air Filter Intake

Optimal Design of Off-Road Utility Terrain Vehicle Air Filter Intake

Advanced Engine Technologies for Turbochargers Solutions

Electric Boosting and Energy Recovery Systems for Engine Downsizing

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