Study on Separation Characteristics of Dust and Droplet on Air Intake Pre-filtration Systems of CV Based on CFD Simulation and Test

Tang, Rongjiang; Hu, Binfei; Zhang, Miao; Lu, Zengjun

doi:10.12783/dtcse/icaic2019/29462

Cited by 6 publications

(6 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The basic component of the working medium of any internal combustion engine is air drawn from the atmosphere. The engine's intake system is responsible for supplying ambient air to the engine's cylinders with the right purity [1], in the right quantities and at the right pressure and temperature to ensure proper fuel combustion in the cylinders [2] and minimize wear on engine components [3,4]. In addition, the intake system, has the task of suppressing the noise caused by the flow of the air stream [5] and forcing the wave phenomena of the flowing air causing resonant charging, which increases the filling pressure p N in the cylinders, resulting in an increase in engine power [6].…”

Section: Introductionmentioning

confidence: 99%

Empirical study of the effect of the air filter on the performance and exhaust emissions of a diesel engine

Dziubak¹,

Karczewski²,

Dziobek³

2023

Combustion Engines

View full text Add to dashboard Cite

The results of an experimental study of the effect of the pressure drop of the air filter pf on the operat-ing parameters and exhaust emissions of a modern CI internal combustion engine of a truck equipped with an electronically controlled power system are presented. The tests were carried out for an air filter with a clean filter cartridge Δpf0 = 0,58 kPa and with a cartridge contaminated after a service mileage (about 50 thousand km) ΔpfD = 2,024 kPa. In each test, engine performance, exhaust emissions and relative change in emissions were determined: CO, NOx, HC, CO2, H2O. It was found that an increase in the filter resistance pf causes a decrease in the filling degree by 12%, engine useful power by almost 10%, exhaust gas temperature by a maximum of 30oC and an increase in specific fuel consumption by almost 5%. Air filter resistance has no significant effect on NOx emissions and HC concentration. There is a reduction in H2O emissions by up to 7%, CO by up to 13% and CO2 by up to 4%, and an increase in oxygen emissions by 15%, depending on operating conditions.

show abstract

Section: Introductionmentioning

confidence: 99%

Empirical study of the effect of the air filter on the performance and exhaust emissions of a diesel engine

Dziubak¹,

Karczewski²,

Dziobek³

2023

Combustion Engines

View full text Add to dashboard Cite

show abstract

“…Good fuel mixing is a balance between air and fuel, not too much or too little. Therefore, to obtain sufficient air intake and fuel, it is necessary to measure the diameter of the intake manifold channel [7].…”

Section: Introductionmentioning

confidence: 99%

Effect of Variations in Velocity Air Intake Cyclone Dimensions on Motorcycle Torque and Power

et al. 2023

View full text Add to dashboard Cite

The Velocity Air Intake System is an important component in a motor vehicle engine, particularly in a 155cc engine. Its function is to optimize the airflow process to the throttle body or carburetor. However, many users or people tend to overlook the significance of improving engine performance by varying the model or replacing the velocity air intake system itself. One common issue is the diameter and shape of the airflow model, which can affect the power, torque, and exhaust emissions produced. Installing a velocity air intake system is one approach to achieve an efficient air delivery process into the combustion chamber. In our research conducted using a dyno test on a 155cc four-stroke engine, the results showed that using a 46 mm size yielded the highest power of 11.03 Hp and produced a torque of 12.39 N.m. Using a 47 mm size resulted in 11.02 Hp and decreased the torque to 12.28 N.m. With a 48 mm size, there was a decrease in power to 11.00 Hp and an increase in torque to 12.72 N.m, while using a 45 mm size led to a decrease in power to 10.09 Hp and produced a torque of 11.31 N.m.

show abstract

“…The following table (Table 1) provides typical dust concentrations for a variety of engine operating sites [1]. The task of the inlet system in a motor vehicle's internal combustion engine is to deliver air to the engine cylinders in appropriate amounts and with appropriate parameters, in such a way as to ensure the correct course of the fuel combustion process in the engine cylinders [4][5][6][7]. An important task is to supply air with appropriate quality (cleanliness) to engine cylinders to minimise engine components wear.…”

Section: Introductionmentioning

confidence: 99%

Material Properties Analysis with Addition of Nanofibres for Air Intake Filtration in Internal Combustion Engines

Dziubak¹

2021

IJAME

View full text Add to dashboard Cite

The aim of this study is to provide an experimental properties evaluation of a standard filter material (cellulose) and materials with fiber layer addition with small diameters (nanofibers). Filter media, including cellulose, used in the internal combustion engine inlet air filtration are made of high diameter fibres, approx. 15 µm. Significantly higher separation and filtration efficiency performance are obtained for materials with lower fibre diameters (nanofibres), however, at the expense of a significantly higher pressure drop, affecting the engine performance. Filter media manufacturers mainly specify the structure parameters (pore size, air permeability and thickness), without giving any information on the dust filtration performance and rate. The literature includes test results for models of different filter media structures. Filtration process modelling using polydisperse dust with particles of different shape and density and irregular filter media structure is possible using advanced computer techniques, however, the process is complex and requires many simplifications. Test results can be applied directly in the automotive industry. The data can be obtained by experimental tests on filter medium specimens, complete filter elements or air filters which are costly and time-consuming tests, however, those test methods are the most reliable. Conditions and testing methodology for intake air filter materials used in internal combustion engines were developed. Filtration and flow resistance efficiency and accuracy were done depending on test dust mass stopped per unit area. Tested materials filtration efficiency was assessed by a filtration quality factor, which includes experimentally determined efficiency and accuracy as well as flow resistance values. Much higher efficiency and filtration accuracy of dust grains below 5 µm in filtration materials with nanofibers addition compared to standard filtration material (filter paper) were demonstrated. For the same flow resistance values, filter materials with nanofibers addition accumulate smaller dust mass than standard filter paper. Usage of materials with nanofibers addition used in motor vehicles intake air filtration ensures their high efficiency and accuracy. It minimises its components wear, but at the expense of faster flow resistance increase, which shortens filter life and increases filter replacement frequency. Results obtained during the experimental research partly fill the gap when it comes to the basic material properties used in internal combustion engines intake air filter partitions production.

show abstract

Study on Separation Characteristics of Dust and Droplet on Air Intake Pre-filtration Systems of CV Based on CFD Simulation and Test

Cited by 6 publications

References 0 publications

Empirical study of the effect of the air filter on the performance and exhaust emissions of a diesel engine

Empirical study of the effect of the air filter on the performance and exhaust emissions of a diesel engine

Effect of Variations in Velocity Air Intake Cyclone Dimensions on Motorcycle Torque and Power

Material Properties Analysis with Addition of Nanofibres for Air Intake Filtration in Internal Combustion Engines

Contact Info

Product

Resources

About