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 effect of applying the eco-driving rules on the exhaust emissions

2013 ◽  
Vol 155 (4) ◽  
pp. 66-74
Author(s):  
Jerzy MERKISZ ◽  
Maciej ANDRZEJEWSKI ◽  
Jacek PIELECHA
Keyword(s):  
Fuel Consumption ◽  
Power Unit ◽  
Commercial Vehicle ◽  
Exhaust Emissions ◽  
Exhaust Emission ◽  
Driving Style ◽  
Traffic Conditions ◽  
Vehicle Engine ◽  
Harmful Substances ◽  
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 initial verification how the driving style affects on the exhaust emissions from vehicle engine and fuel consumption. The determinants were the measurements of the concentration of CO2 and others harmful 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).

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).

Reducing Locomotive Idle Fuel Consumption and Exhaust Emissions by Applying an Auxiliary Power Unit (APU)

2003 ◽  
Author(s):  
Larry Biess ◽  
Ted Stewart ◽  
David Miller ◽  
Steven Fritz
Keyword(s):  
Fuel Consumption ◽  
Power Unit ◽  
Extended Period ◽  
Exhaust Emissions ◽  
Lubricating Oil ◽  
Exhaust Emission ◽  
Air Conditioner ◽  
Auxiliary Power Unit ◽  
Auxiliary Power ◽  
Locomotive Engine

This paper documents results of fuel consumption and exhaust emission tests performed on a 1,500 kW EMD GP38-2 locomotive equipped with an auxiliary power unit (APU) designed to minimize main engine idling time by providing stand-by services normally provided by the main EMD 16-645-E engine at idle. The purpose of these tests was to perform an evaluation of the exhaust emissions and fuel consumption of both the EMD 16-645-E engine and the APU. The APU diesel engine was a 2.0L, 4-cylinder, turbocharged, Kubota model V2003-TEBG rated at 30.6 kW. The APU was tested using an external load box over a range of load conditions, ranging from unloaded (0 kW) through 16 kW, which was the maximum APU load expected as installed in the locomotive. Fuel consumption and exhaust emissions are compared between an idling EMD 16-645-E engine and the APU engine at a “typical” stand-by condition with the coolant and lubricating oil heaters operating and the locomotive control cab air conditioner turned off. Test results showed that the APU fuel consumption and exhaust emissions are dramatically lower than the idling EMD locomotive engine. Because the APU is designed to automatically start and stop as a function of the locomotive water temperature, and therefore operates only a portion of the time that the EMD engine would otherwise be idling. Reductions in fuel consumption and exhaust emissions over an extended period of time would be even more dramatic.

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 Influence of drivers’ driving style on the uncertainty of measurements of exhaust emissions on a chassis dynamometer

2018 ◽  
Vol 19 (12) ◽  
pp. 675-679
Author(s):  
Andrzej Szczotka ◽  
Bartosz Puchałka ◽  
Piotr Bielaczyc
Keyword(s):  
Exhaust Emissions ◽  
Exhaust Emission ◽  
Combustion Engines ◽  
Chassis Dynamometer ◽  
Driving Style ◽  
Uncertainty Of Measurements ◽  
The Impact

Exhaust emission measurements on the chassis dynamometer are one of the most important and most complex tests which are performed on vehicles driven by combustion engines. This paper de-scribes in detail one of the most important factor affecting on the final results of the exhaust emission: the impact of the drivers’ driving style..

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

scholarly journals Reducing the Negative Impact of Public Transport on the Environment by Using CNG as a Fuel / Ograniczenie Negatywnego Wpływu Komunikacji Miejskiej Na Środowisko Naturalne Poprzez Zastosowanie CNG Jako Paliwa

2012 ◽  
Vol 22 (1) ◽  
pp. 147-158
Author(s):  
Jerzy Merkisz ◽  
Paweł Fuc ◽  
Maciej Bajerlein ◽  
Michał Dobrzynski ◽  
Łukasz Rymaniak ◽  
...  
Keyword(s):  
Natural Gas ◽  
Public Transport ◽  
Negative Impact ◽  
Exhaust Emissions ◽  
Exhaust Emission ◽  
Compressed Natural Gas ◽  
Traffic Conditions ◽  
The Impact

Abstract The paper presents the results of emission research city buses fueled by compressed natural gas and diesel. The exhaust emission tests were performed under actual traffic conditions on a regular bus line. For the measurement was used a mobile exhaust analyzer for the group of PEMS - SEMTECH DS by Sensors Inc. Based on the obtained of the result the test determined the impact of applied compressed natural gas to reduce exhaust emissions for a vehicle fueled by diesel.

scholarly journals Evaluation of ecological extremes of vehicles in road emission tests

2020 ◽  
Vol 56 (4) ◽  
pp. 33-46
Author(s):  
Jacek Pielecha ◽  
Kinga Skobiej
Keyword(s):  
Objective Function ◽  
Road Traffic ◽  
Exhaust Emissions ◽  
Motor Vehicles ◽  
Road Test ◽  
Testing Procedures ◽  
Functional Relationships ◽  
Traffic Conditions ◽  
Road Emission ◽  
Real Traffic

New testing procedures for determining road emissions of exhaust pollutants for passenger vehicles were established in 2018. New road testing procedures are designed to determine actual exhaust emissions, which may not always reflect laboratory emissions. Test procedures for the emission of pollutants in real traffic conditions are divided into four stages. The latest research on the emission of pollutants from motor vehicles in road traffic conditions, carried out using mobile measuring systems, reflects the actual ecological state of vehicles. The article compares the results of exhaust emissions obtained in road tests using the latest legislative proposals for passenger cars. Then, an attempt was made to determine the engine operating parameters in which exhaust road emission would be the lowest. Solution scenarios were defined as part of permissible changes to dynamic parameters that are included in European legislation on RDE testing. For this purpose, an optimization tool was used, allowing on the basis of given input data to determine the minimum objective function, defined as the smallest emission value of individual harmful compounds. The results of the exhaust gas emissions in the RDE test were used to determine the road emissions of individual harmful compounds. A thorough analysis of the emission intensity of individual compounds has shown that it is possible to approximate such values using functional relationships or adopting them as a constant value. This division was used to determine the extremes (in this case the minima) of the objective function (minimum road emissions of harmful exhaust compo-nents). This task resulted in obtaining (within the permissible tolerances of all driving parameters and durations of individual road test sections) the value of exhaust emissions in the range from 26% to 81% lower than in the actual road test. This means that there is a tolerance range, where you can obtain the value of emissions in road tests. As a result, you can use the process of determining the minimum emissions tests RDE calibration of the drive units already at the stage of preparation so that in the real traffic conditions characterized by the lowest exhaust emissions.

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