Total Filtration ™: The Influence of Filter Selection on Engine Wear, Emissions, and Performance

Barris, Marty A.

doi:10.4271/952557

Cited by 37 publications

(46 citation statements)

References 41 publications

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“…Tests showed that the engine durability depends on the purity of inlet air [ 16 , 17 , 18 ]. The wear of engine components is caused by 1–40-µm dust particles; however, the most damage is done by 5–20-µm particles [ 19 , 20 , 21 , 22 , 23 , 24 ].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of Filtration Materials Used in the Car Air Intake

Dziubak

2020

Materials

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Traditional cellulose filter media used for air filtration in vehicle engines are characterized by 99.9% filtration efficiency and accuracy above 2–5 µm. The highest engine component wear is caused by dust grains above 1 µm. Filter media with nanofiber additions provide greater filtration efficiency of dust grains below 5 µm. Filter material selection for vehicle engine air filter is a problem because their manufacturers mainly provide only the structure parameters: pore size, air permeability, and thickness. There is no information about material filtration properties using polydisperse test dust. The manuscript presents methodology and experimental test results of five samples A, B, C, D and E, filter materials differing in their chemical composition and structure parameters. In the first stage, efficiency characteristics φw, filtration accuracy dzmax and the flow resistance Δpw depending on the dust absorption coefficient km of three filter cartridges of each material, A, B, C, D and E, were determined. Then, from each material characteristics of one piece was selected in order to compare their initial and initial period efficiencies as well as changes in the flow resistance depending on the dust absorption coefficient km. Obtained results showed that the filter materials differ significantly in efficiency and accuracy values in the initial filtration period. Initial period duration is also different, i.e., filtration efficiency increasing time to a certain value, which for materials with a nanofiber layer is much shorter, which minimizes engine component wear. For materials with nanofibers, flow resistance increase intensity is greater, which results from surface filtration. Filtration efficiency of each filter material sample A, B, C, D and E was assessed with the filtration quality coefficient including the efficiency and flow resistance. In the available literature, the problem of increasing filtration efficiency in the initial period is known, but there are no results for specific filter materials. Research shows that filter material characteristics are closely related. Each increase in efficiency and accuracy of intake air filtration reduces engine components wear, but it is related to flow resistance increase in the engine intake system, which reduces its power, and increases need for more frequent filter servicing.

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Section: Introductionmentioning

confidence: 99%

Experimental Study of Filtration Materials Used in the Car Air Intake

Dziubak

2020

Materials

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“…Particle concentration in air may vary between 0.001-3000 microns depending on working or environmental conditions (Table 2). Barris (1995) investigated engine wear rate and showed the higher the dust concentration, the higher the relative engine wear rate. Source: Barris (1995) On the other hand, volume distribution of particle in atmosphere shows bimodal distribution as can be seen in Figure 4 (Whitby et al, 1972).…”

Section: Figurementioning

confidence: 99%

“…Barris (1995) investigated engine wear rate and showed the higher the dust concentration, the higher the relative engine wear rate. Source: Barris (1995) On the other hand, volume distribution of particle in atmosphere shows bimodal distribution as can be seen in Figure 4 (Whitby et al, 1972). The lower mode being composed of submicron particles generated mostly during the combustion process.…”

Section: Figurementioning

confidence: 99%

Usability of cyclone separators as air filters in vehicles

Karagöz¹,

Kaya²,

Avcı³

2010

IJVD

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This study deals with the use of cyclone separators as air filters in light or heavy duty vehicles. Cyclone separators were compared with the conventional air filters, which provide low particle collection efficiency with high pressure drop, and these characteristics are made worse by contamination. By taking into account the related studies in the literature, tangential inlet cyclones were considered in this comparison. The pressure drop and particle collection efficiency in the proposed tangential inlet cyclone were computed by using the mathematical models given in the literature. Comparison of the computed results of the cyclone with the conventional air filters demonstrated that the tangential inlet cyclones are advantageous because of low pressure drop and high particle collection efficiency and can be used as main or pre-filters in vehicles.

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“…Dust sucked in with the air gets over the piston, which is the reason why the upper part of the cylinder and piston and the upper piston rings wear the most. Abrasive wear of engine components is caused mainly by particles of 1-40 µm, with the most harmful particles in the range of 1-20 µm [3,23,28].…”

Section: Introductionmentioning

confidence: 99%

“…Intensity of increase in pressure drop depends on the conditions in which the vehicle is operated, mainly on the dust concentration in the air and the vehicle (engine) operating time. It is assumed that during operation, the air filter pressure drop should not exceed the permissible value p fdop , which is determined from the condition of a 3% decrease in engine power and is at the level of 2.5-4.0 kPapassenger car engines, 4-7 kPatruck engines [3] and 9-12 kPaspecial purpose vehicles [6]. From a technical point of view, service life of an air filter is commonly defined as the restriction level that causes the pressure on the passenger car filter to drop by about 2.5 kPa above pressure drop of the new (clean) filter.…”

Section: Introductionmentioning

confidence: 99%

Problems of selecting filter partition in passenger car engine intake air filters

Dziubak¹,

Bąkała²

2021

Combustion Engines

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The aim of this study was to verify the criteria for selecting pleated filter partitions used in passenger car engine filters. The paper presents the problem of optimizing pleated air filters in the dir ection of minimizing pressure drop, which is the source of engine energy losses. Two criteria for selection of a paper filter partition for specific operating conditions of the filter and the engine are presented: criterion of permissible separation speed and criterion of permissible pressure drop. The actual filtration area of 44 paper pleated filter elements used in passenger cars and the air stream flowing through the filter were determined, which made it possible to calculate separation speed. In 62% of the analyzed filter inserts, the calculated separation speeds are within the speed range recommended by the constructors, Fmax = 0,06-0,12 m/s. Exceeding permissible separation speed Fmax = 0,12 m/s was found mainly in supercharged engines. Negative effects of engine operation with an air filter with too small separation area are presented, in the form of increased pressure drop and energy loss of the engine as well as shorter car mileage to reach permissible pressure drop.

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Total Filtration ™: The Influence of Filter Selection on Engine Wear, Emissions, and Performance

Cited by 37 publications

References 41 publications

Experimental Study of Filtration Materials Used in the Car Air Intake

Experimental Study of Filtration Materials Used in the Car Air Intake

Usability of cyclone separators as air filters in vehicles

Problems of selecting filter partition in passenger car engine intake air filters

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