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 Influence of the chassis dynamometer regulation on the exhaust emission results

2019 ◽  
Vol 24 (6) ◽  
pp. 280-285
Author(s):  
Andrzej Szczotka ◽  
Bartosz Puchałka ◽  
Piotr Bielaczyc ◽  
Borys Adamiak
Keyword(s):  
Exhaust Emission ◽  
Combustion Engines ◽  
Chassis Dynamometer ◽  
The Impact

Exhaust emission measurements on the chassis dynamometer are one of the most important and most complex tests which are per-formed on vehicles powered by combustion engines. Many factors must be under control during exhaust emission measurements, which have an influence on correctness of the obtained results. In this paper, the impact of the chassis dynamometer regulation on the exhaust emission results is analysed.

scholarly journals The Impact of Powering an Engine with Fuels from Renewable Energy Sources including its Software Modification on a Drive Unit Performance Parameters

2019 ◽  
Vol 11 (23) ◽  
pp. 6585 ◽  
Author(s):  
Markiewicz ◽  
Muślewski
Keyword(s):  
Renewable Energy ◽  
Internal Combustion Engines ◽  
Combustion Engine ◽  
Renewable Energy Sources ◽  
Internal Combustion ◽  
Energy Sources ◽  
Exhaust Emission ◽  
Combustion Engines ◽  
Performance Parameters ◽  
The Impact

The application of fuels from renewable energy sources for combustion engine powering involves a great demand for this kind of energy while its production infrastructure remains underdeveloped. The use of this kind of fuel is supposed to reduce the emission of greenhouse gases and the depletion of natural resources and to increase the share of renewable energy sources in total energy consumption and thus support sustainable development in Europe. This study presents the results of research on selected performance parameters of transport by internal combustion engines including: power, torque, the emission of sound generated by the engine, the content of exhaust components (oxygen O2, carbon monoxide CO, carbon dioxide CO2, nitrogen dioxide NO2), and the content of particulate matter (PM) in exhaust emission. Three self-ignition engines were tested. The fuel injection controllers of the tested internal combustion engines were additionally adjusted by increasing the fuel dose and the load of air. The material used in the tests were mixtures of diesel oil and fatty acid methyl esters of different concentration. A statistical analysis was performed based of the results. The purpose of the work was to develop a resulting model for assessing the operation of engines fueled with biofuel and diesel mixtures while changing the vehicle's computer software. A computer simulation algorithm was also developed for the needs of the tests which was used to prognose the state of the test results for variable input parameters.

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 impact of vehicle dynamic parameters on the exhaust emissions in RDE tests

2018 ◽  
Vol 175 (4) ◽  
pp. 26-34
Author(s):  
Jacek PIELECHA ◽  
Karolina KURTYKA ◽  
Kinga SKOBIEJ
Keyword(s):  
Internal Combustion Engines ◽  
Exhaust Emissions ◽  
Exhaust Emission ◽  
Dynamic Parameters ◽  
Passenger Cars ◽  
The Road ◽  
Positive Acceleration ◽  
Legislative Proposals ◽  
Test Route ◽  
The Impact

The article compares driving test data using the latest legislative proposals applicable to passenger cars with different drives. For this purpose, cars of one type were selected, meeting the same exhaust toxicity standard (Euro 6c) and differing in used internal combustion engines (with spark-ignition, compression-ignition and hybrid drive). Several measurements were performed on the same test route in accordance with the RDE test guidelines, which requires a several of criteria to be met. These criteria include the length of the measuring sections, their overall timeshare and the dynamic characteristics of the drive. A portable emissions measurement system (PEMS) was used to record the engine and vehicle operating parameters and to measure the exhaust emissions during tests. This allowed for the monitoring of parameters such as: load value, engine speed and vehicle velocity. Then the obtained results were analyzed for their compatibility with the RDE procedure requirements. By determining the road emission of individual harmful compounds for all vehicles and the dynamic parameters of drive (relative positive acceleration and product of speed and positive acceleration) in various phases of the road test it was possible to compare them. On this basis, the impact of dynamic conditions of road tests on the obtained results of the road exhaust emission of harmful compounds for passenger cars with various drives was defined.

scholarly journals Influence of the dilution factor on the uncertainty of the exhaust gas emission results obtained during testing on the chassis dynamometer

2018 ◽  
Vol 19 (6) ◽  
pp. 737-742
Author(s):  
Andrzej Szczotka ◽  
Bartosz Puchałka ◽  
Piotr Bielaczyc ◽  
Borys Adamiak
Keyword(s):  
Large Impact ◽  
Exhaust Emission ◽  
Exhaust Gas ◽  
Combustion Engines ◽  
Chassis Dynamometer ◽  
Dilution Factor ◽  
Gas Emission ◽  
Test Vehicle ◽  
Emission Level ◽  
Exhaust Gas Emission

Exhaust emission measurements on the chassis dynamometer are one of the most important and most complex tests which are performed on vehicles powered by combustion engines. The sample and dilution system (CVS - Constant Volume Sampling) belongs to the most important parts of the exhaust emission laboratory, and has a large impact on the accuracy of the results obtained. In this paper, the influence of the dilution factor (i.e. parameter changed by means of the CVS system, depending on the emission level and engine displacement of the test vehicle) on the uncertainty of the exhaust gas emission results is analysed.

scholarly journals On-road exhaust emission testing

2011 ◽  
Vol 146 (3) ◽  
pp. 3-15
Author(s):  
Jerzy MERKISZ
Keyword(s):  
Exhaust Emissions ◽  
Exhaust Emission ◽  
Combustion Engines ◽  
Vehicle Exhaust ◽  
Machinery Construction ◽  
Construction Machinery ◽  
Traffic Conditions ◽  
University Of Technology ◽  
Emission Testing ◽  
Important Trend

The paper presents the reasons behind on-road vehicle exhaust emission testing. The latest legislation has been presented in the paper applicable in the EU as well as the research potential of the Institute of Combustion Engines and Transport of Poznan University of Technology. The presentation of the results of the on-road tests pertains to passenger vehicles, buses and non-road machinery (construction machinery, tractors) and aircraft. The comparison of the exhaust emissions from different means of transport under real traffic conditions constitutes an important trend included in the normative legislation related to exhaust emissions

scholarly journals Observations from PEMS testing of combustion engines of different applications

2018 ◽  
Vol 174 (3) ◽  
pp. 40-55
Author(s):  
Jerzy MERKISZ ◽  
Jacek PIELECHA
Keyword(s):  
Internal Combustion Engines ◽  
Dynamic Properties ◽  
Operating Time ◽  
Carbon Dioxide Emission ◽  
Exhaust Emissions ◽  
Exhaust Emission ◽  
Vehicle Speed ◽  
Combustion Engines ◽  
The Road ◽  
Procedure Guidelines

The article compares data obtained in road tests with the latest legislative proposals relating to various applications of internal combustion engines. Passenger car emission tests have been performed several times on the same test route in accordance with the RDE procedure guidelines, for which a dozen or so criteria must be met, including the distance of each of the drive sections, their in the drive time and the dynamic characteristics of the drive. The analysis was also based on a two-dimensional operating density characterization, presented in the vehicle speed-acceleration coordinates. As a result, it was possible to compare dynamic properties, operating time density and, thus, to check the validity of conducted drive tests in terms of their feasibility and emission values. An exhaust emission related comparison of three types of powertrain have been presented: gasoline, diesel and hybrid in the RDE tests. The authors proposed a new form of presenting the road exhaust emissions results in relation to the carbon dioxide emission, referred to as a standardization of the emission results. The exhaust emissions from city buses fitted with different powertrains tested on an actual bus route and in the SORT test were also compared.

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.

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