Mateusz Nowak

EXHAUST EMISSION MEASUREMENTS IN THE DEVELOPMENT OF SUSTAINABLE ROAD TRANSPORT

Economic development of nations leads to a higher living comfort of the society. Rich societies want to move safely and independently and demand immediate availability of purchased goods or – in the case of Internet shopping – delivery in the shortest possible time. Such an approach facilitates a continuous growth in the number of road vehicles. At the current level of technology advancement, an increasing number of vehicles results in a growth of the consumption of fossil fuels, which entails increased exhaust emissions and that, in turn, has a negative impact on the health of the living organisms. Another negative consequence of an increased number of vehicles (increased road congestion) is the emission of noise. This problem is particularly significant in large agglomerations where people are surrounded by moving vehicles. This paper presents the extent of influence of the automotive industry on the natural environment and the extent of changes in vehicle design and organization of road infrastructure that were instituted to reduce the transport’s environmental burden. The further part of the paper presents a definition of the development of sustainable transport, its advantages and hurdles that we may encounter when modernizing a transport system. Subsequently in the paper, the measurements under actual vehicle operating conditions were described together with the possibilities of analysis of the research results and the advantages resulting from such an approach during the assessment of the impact of the automotive industry on the natural environment.

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

The paper presents an attempt to evaluate the exhaust emissions generated by transport in the Poznan agglomeration. The basis for the modeling of the exhaust emissions was the on-going characteristics of the individual groups of vehicles and a forecasted structure change of these groups for the years 2012–2030. The determination of average on-road emissions as a function of daily distance covered by individual vehicle groups was the basis for the determination of the change in the annual pollution. The assumed values of the exhaust emission concentrations from passenger vehicles were based on the performed tests under actual traffic conditions while for the other categories the authors adopted the test results of earlier works of the research team with the Chair of Combustion Engines at Poznan University of Technology. In the paper the authors assumed an increase in the share of vehicles meeting the latest applicable emission standards as well as changes in the distance covered by the vehicles. The result of the analysis will be accumulated annual exhaust emissions for a given vehicle

Parametrisation of Operating Conditions in Cars in the On-Board Type Measurements of Pollution Emissions

This paper presents the preliminary concept research to develop the test used in the measurement of emissions in real traffic conditions for passenger vehicles. Work based on the lack of legal solutions for determining the environmental performance of light vehicles - as opposed to heavy-duty vehicles for which such regulations have specified. The elaboration is to compare the emission test used in clinical approval of passenger cars, while the synthesis of the results obtained under different conditions road tests. The intention is to develop a test for assessing the ecological vehicle in real traffic conditions, where restrictions will only drive type (gasoline engine, diesel engine, hybrid vehicle), which is consistent with the requirements of the certification tests. The result should be the foundation for the development of the test in terms of: the duration, to determine the operating conditions and vehicle and proposals for emission limit values.