scholarly journals Exhaust emissions from modes of transport under actual traffic conditions

2014 ◽  
Author(s):  
J. Merkisz ◽  
M. Jacyna ◽  
A. Merkisz-Guranowska ◽  
J. Pielecha
Keyword(s):  
Exhaust Emissions ◽  
Traffic Conditions

scholarly journals Exhaust Emissions and Energy Consumption Analysis of Conventional, Hybrid, and Electric Vehicles in Real Driving Cycles

Energies ◽  
2020 ◽  
Vol 13 (23) ◽  
pp. 6423
Author(s):  
Jacek Pielecha ◽  
Kinga Skobiej ◽  
Karolina Kurtyka
Keyword(s):  
Energy Consumption ◽  
Electric Vehicle ◽  
Electric Vehicles ◽  
Carbon Dioxide Emissions ◽  
Gasoline Engine ◽  
Exhaust Emissions ◽  
Hybrid Vehicles ◽  
The European Union ◽  
Passenger Cars ◽  
Traffic Conditions

One of the environmental aims of the European Union is to achieve climate neutrality by 2050. According to European Parliament data, transport emissions accounted for about 25% of global carbon dioxide emissions in 2016, in which road transport had the largest share (approximately 72%). This phenomenon is particularly visible in urban agglomerations. The solution examples are the popularization of hybrid vehicles and the development of electromobility. The aim of this paper is an assessment of the energy consumption and exhaust emissions from passenger cars fitted with different powertrains in actual operation. For the tests, passenger cars with conventional engines of various emission classes were used as well as the latest hybrid vehicles and an electric car. It enabled a comparative assessment of the energy consumption under different traffic conditions, with particular emphasis on the urban phase and the entire RDE (Real Driving Emissions) test. The results were analyzed to identify changes in these environmental factors that have occurred with the technical advancement of vehicles. The lowest total energy consumption in real traffic conditions is characteristic of an electric vehicle; the plug-in hybrid vehicle with a gasoline engine is about 10% bigger, and the largest one is a combustion vehicle (30% bigger than an electric vehicle). These data may contribute to the classification of vehicles and identification of advantages of the latest developments in conventional, hybrid, and electric vehicles.

scholarly journals The influence of the driving style according to the principles of eco-driving on the emission of toxic substances from a light utility vehicle

2019 ◽  
Vol 24 (6) ◽  
pp. 33-37
Author(s):  
Maciej Andrzejewski ◽  
Mateusz Nowak
Keyword(s):  
Power Unit ◽  
Commercial Vehicle ◽  
Exhaust Emissions ◽  
Exhaust Emission ◽  
Toxic Substances ◽  
Driving Style ◽  
Traffic Conditions ◽  
Vehicle Engine ◽  
Utility Vehicle ◽  
Real Traffic

The article presents the results of measurements of exhaust emissions of commercial vehicle in real traffic conditions. The aim of this study was to determine how the driving style affects on the exhaust emissions from vehicle engine. The determinants were the measurements of the concentration of main toxic substances emitted to the atmosphere from the power unit of the tested vehicle. In the measurements a portable exhaust emission analyzer was used (PEMS type).

scholarly journals The influence of the driving speed on the exhaust emissions

2014 ◽  
Vol 156 (1) ◽  
pp. 41-47
Author(s):  
Jerzy MERKISZ ◽  
Marianna JACYNA ◽  
Maciej ANDRZEJEWSKI ◽  
Jacek PIELECHA ◽  
Agnieszka MERKISZ-GURANOWSKA
Keyword(s):  
Exhaust Emissions ◽  
Point Of View ◽  
Vehicle Speed ◽  
Portable Equipment ◽  
The Road ◽  
Traffic Conditions ◽  
Driving Speed ◽  
Vehicle Operation ◽  
Harmful Substances ◽  
Research Equipment

The aim of the study is to verify the thesis about the influence of the vehicle speed on the exhaust emissions. The influence of the speed on the fuel consumption is quite easily measurable and generally possible to identify, while determining the emissions of harmful substances requires specialized research equipment. The analysis is important from the point of view of the vehicle operation. The paper presents the results of the road tests of a car fitted with a diesel engine. It contains the results of measurements of the concentration of the exhaust components. In the measurements, PEMS portable equipment was used. The study was conducted under actual traffic conditions (motorway driving) on a selected portion of the A2 motorway, located near Poznan.

The On-Road Exhaust Emissions from Vehicles Fitted with the Start-Stop System

2013 ◽  
Vol 390 ◽  
pp. 343-349 ◽  
Author(s):  
Jerzy Merkisz ◽  
Pawel Fuc ◽  
Piotr Lijewski ◽  
Andrzej Ziolkowski
Keyword(s):  
Diesel Engine ◽  
Fuel Consumption ◽  
Measurement System ◽  
Power Output ◽  
Gasoline Engine ◽  
Exhaust Emissions ◽  
The Other ◽  
Exhaust Emission ◽  
Traffic Conditions ◽  
Utility Vehicle

The paper describes the influence of the start-stop system on the exhaust emissions and fuel consumption. The tests were performed for two vehicles. The first one was a vehicle designed specifically to operate in city conditions. It was fitted with a gasoline engine of the displacement of 0.9 dm3 and maximum power output of 63.7 kW. The other vehicle was an SUV (Sports Utility Vehicle) fitted with a diesel engine of the displacement of 3.0 dm3. The measurements of the exhaust emission were carried out on the same route under actual traffic conditions. For the tests a portable exhaust emissions analyzer from the PEMS group SEMTECH DS was used (PEMS Portable Emissions Measurement System).

scholarly journals Exhaust emissions of buses LNG and Diesel in RDE tests

2021 ◽  
Vol 11 (1) ◽  
pp. 356-364
Author(s):  
Maciej Gis ◽  
Jacek Pielecha ◽  
Wojciech Gis
Keyword(s):  
Nitrogen Oxides ◽  
Road Transport ◽  
Exhaust Emissions ◽  
Exhaust Emission ◽  
Limit Values ◽  
Traffic Conditions ◽  
Emission Norm ◽  
Evaluation Algorithm ◽  
Emission Limit ◽  
Urban Bus

Abstract The article compares the exhaust emissions in road conditions of city buses: LNG and Diesel. Both buses met the Euro VI exhaust emission norm. The current strong drive to diversify fuels in Poland and the creation of a large gas port in Świnoujście for LNG imports creates an excellent opportunity to use this fuel, also in road transport. Therefore, the attempt to identify the emission in operation, in first place possible applications, i.e. an LNG bus, comparatively with the emission of a Diesel bus. The operational research carried out concerned such a bus and has not yet been carried out in the country, hence their innovation, also methodological. The conducted research, in particular, was aimed at verifying differences in exhaust emissions of carbon dioxide and nitrogen oxides. The study was carried out on one urban bus route performing trips on consecutive days in similar environmental conditions. The performed tests were not strictly type approval tests but only used for comparative purposes. Hence, it was necessary to determine the compliance factor for the relevant exhaust gas substances, with the use of an evaluation algorithm based on measurement windows. Based on these results, the assumption regarding compliance with the emission requirements for the tested buses was verified in real traffic conditions. The exhaust emission values (emission indicators) determined in this way did not exceed the permissible emission limit values for carbon monoxide, while for nitrogen oxides and non-methane hydrocarbons certain exceedances were found.

scholarly journals The research of exhaust emissions and fuel consumption from HHD engines under actual traffic conditions

2014 ◽  
Vol 158 (3) ◽  
pp. 56-63
Author(s):  
Jerzy MERKISZ ◽  
Paweł FUĆ ◽  
Piotr LIJEWSKI ◽  
Andrzej ZIÓŁKOWSKI ◽  
Łukasz RYMANIAK
Keyword(s):  
Comparative Analysis ◽  
Fuel Consumption ◽  
Measurement System ◽  
Exhaust Emissions ◽  
Heavy Duty ◽  
Traffic Conditions ◽  
Test Road ◽  
Test Route ◽  
Heavy Duty Vehicles ◽  
Portable Emissions Measurement System

The paper presents a comparative analysis of the emission of CO, NOx, CO2 and gas mileage for two heavy-duty long haulage vehicles. The tests were performed on the same test road. The test route reflected typical daily operation of heavy-duty vehicles – a drive to the loading/unloading zone and cruise on national roads. In the investigations, the authors used a portable exhaust emissions analyzer (SEMTECH DS, PEMS – Portable Emissions Measurement System). Based on the performed analysis, optimum engine was selected for long haulage vehicles under conditions of Polish transport and logistic infrastructure in terms of fuel consumption.

scholarly journals Exhaust emissions from vehicles in real traffic conditions in the Poznan agglomeration

2013 ◽  
Author(s):  
J. Merkisz ◽  
J. Pielecha ◽  
P. Lijewski ◽  
A. Merkisz-Guranowska ◽  
M. Nowak
Keyword(s):  
Exhaust Emissions ◽  
Traffic Conditions ◽  
Real Traffic
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