Abstract
One of the ways to reduce exhaust emissions from vehicles is to replace worn-out shunting locomotives with road-rail tractors. The main purpose of this solution is to reduce the negative environmental impact of the vehicle and to reduce the fuel consumption compared to a shunting locomotive performing the same work. The tests on exhaust emissions of rail vehicles are carried out on an engine test bench, making it impossible to determine the environmental performance of these vehicles during real operation. Therefore, it is advisable to carry out measurements in real operating conditions in order to obtain reliable reference results. This enables the verification of vehicles ecological indicators in a wide range of operational work parameters. It is possible to obtain reliable results regarding the impact of the tested vehicle on the natural environment in this way and compare them with the applicable emission standards.
Highlights
Rail transport, as compared to other modes of transport, is characterized by a low share in the total emission of harmful compounds in the transport section
The unladen drive along the track was characterized by the lowest specific emission value of carbon monoxide and hydrocarbons due to the limited variability of engine operating parameters, and this is associated with more efficient thermodynamic processes
This is due to the fact that both during the travel on the road and on the track with the load, the vehicle engine was under larger load, even though it is associated with an increase in temperature in the combustion chamber, and a direct impact on the nitrogen oxides (NOx) emission
Summary
One of the ways to reduce exhaust emissions from vehicles is to replace worn-out shunting locomotives with road-rail tractors. The main purpose of this solution is to reduce the negative environmental impact of the vehicle and to reduce the fuel consumption compared to a shunting locomotive performing the same work. The tests on exhaust emissions of rail vehicles are carried out on an engine test bench, making it impossible to determine the environmental performance of these vehicles during real operation. It is advisable to carry out measurements in real operating conditions in order to obtain reliable reference results. This enables the verification of vehicles ecological indicators in a wide range of operational work parameters.
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