Modelling and Fuzzy-Threshold Control of SI Engine for Emission Reduction during Cold Start Phase

Khalilikhah, O.; Shalchian, Majid

doi:10.15282/ijame.16.4.2019.05.0539

Cited by 2 publications

(1 citation statement)

References 22 publications

(31 reference statements)

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“…The variety of driving styles and characteristics of roadways in cities causes various emissions from vehicles. Fuel consumption, as well as exhaust emissions for different components of pollutants, among others CO2, CO, NOx (nitrogen oxides), THC, PM (particulate matter), is very diverse [1][2][3][4][5][6][7][8][9][10][11][12] and depends mainly on the speed, acceleration, gradient of the road and thermal condition of the vehicle's engine. One of the points where occur the biggest accumulation of vehicle traffic in cities is intersections.…”

Section: Introductionmentioning

confidence: 99%

The Impact of Exhaust Emission from Combustion Engines on the Environment: Modelling of Vehicle Movement at Roundabouts

Mądziel¹,

Jaworski²,

Savostin-Kosiak³

et al. 2020

IJAME

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Due to the increased emission of harmful exhaust components, in particular CO2 (carbon dioxide), CO (carbon monoxide), THC (total hydrocarbons), by motor vehicles, especially in the centres of urban agglomerations, it is necessary to create traffic simulation models that allow to estimate the emissions from road transport. One of the places where the largest accumulation of vehicles in cities occurs are intersections. This contributes to increasing the number of stops and repetitions of the acceleration and braking cycle, which has a direct impact on vehicle emissions. At the same time, roundabouts are intersections with specific traffic movement characteristics, therefore it is necessary to calibrate the simulation model beforehand. The aim of the study was to develop a methodology for modeling vehicle traffic at the roundabout and compare the combustion engines emissions resulting from vehicle movement on the example of the selected roundabout case studies. Vehicle traffic modeling was performed in the Vissim traffic microsimulation program based on real data. The comparison concerned the emissions for a two-lane and a turbo roundabout for the assumed traffic volume scenarios for properly calibrated simulation models. The results show that the performance of the simulation allows for the analysis of emissions and determination of its size for each of the roundabout inlets. It is also possible to determine the general dependencies e.g. the length of the queue of vehicles in relation to the emission of the analysed exhaust components. The analysis can be used as an introduction to changes in the guides for designing road intersections concerning vehicle emissions.

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Section: Introductionmentioning

confidence: 99%

The Impact of Exhaust Emission from Combustion Engines on the Environment: Modelling of Vehicle Movement at Roundabouts

Mądziel¹,

Jaworski²,

Savostin-Kosiak³

et al. 2020

IJAME

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Reduction of HC and CO in the Exhaust Gas of Minibus Vehicles by Natural Zeolite

Siregar*¹,

Nasution²

2021

IJITEE

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Air pollution due to burning fossil fuels is still an environmental problem today. This paper presents the research results; method of reducing HC and CO in the exhaust gas of minibus vehicles. This method uses a pollutant gas trap (PGT) device, which functions as an adsorption medium, and natural zeolite as an absorbent material. The PGT device is designed in such a way that the zeolite can adsorb HC and CO gases flowing in it. The PGT device consists of a hollow body and supporting equipment arranged in it. The cavity of the PGT device is filled with zeolite granules and can be passed through vehicle exhaust gases. The PGT device consists of laminar and turbulent flow types, while the zeolite grains used are 2.54 mm and 1.27 mm. The PGT-zeolite device is installed at the exhaust end of the vehicle, so that polluting gases are absorbed by the zeolite. The adsorption capability of the PGT-zeolite device was measured with an Automotive-Emission-Analyzer, type NHA-406EN. Turbulence type PGT device, capable of reducing pollutant gases HC ≈ 40% and CO ≈ 42% respectively for the zeolite grain size of 2.54 mm. Meanwhile, the laminar flow type PGT device was able to reduce HC ≈ 36% and CO ≈ 42% gas, respectively for the zeolite grain size of 2.54 mm. The results of this study indicate that the PGT-zeolite device has a very good ability to reduce pollutant gases in the exhaust gas of minibus vehicles. Therefore, it is necessary to continue research on the feasibility of using natural zeolite, as an absorber of polluting gases in other types of vehicles.

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Modelling and Fuzzy-Threshold Control of SI Engine for Emission Reduction during Cold Start Phase

Cited by 2 publications

References 22 publications

The Impact of Exhaust Emission from Combustion Engines on the Environment: Modelling of Vehicle Movement at Roundabouts

The Impact of Exhaust Emission from Combustion Engines on the Environment: Modelling of Vehicle Movement at Roundabouts

Reduction of HC and CO in the Exhaust Gas of Minibus Vehicles by Natural Zeolite

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