Journal
ENERGIES
Volume 14, Issue 6, Pages -Publisher
MDPI
DOI: 10.3390/en14061631
Keywords
vehicles emission; CNG; carbon oxides; on-road tests; portable emissions measurement systems (PEMS)
Categories
Funding
- Ministry of Infrastructure and Development as part of the Eastern Poland Development Operational Program
- European Regional Development Fund
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The issue of global warming and climate change calls for solutions to reduce greenhouse gas emissions, particularly CO2. New cars are designed to consume less fuel and emit lower levels of CO2, making them more environmentally friendly than older models. By converting older vehicles to run on natural gas, significant reductions in CO2 emissions can be achieved, especially in urban driving conditions.
The problem of global warming and the related climate change requires solutions to reduce greenhouse gas emissions, in particular CO2. As a result, newly manufactured cars consume less fuel and emit lower amounts of CO2. In terms of exhaust emissions and fuel consumption, old cars are significantly inferior to the more recent models. In Poland, for instance, the average age of passenger cars is approximately 13 years. Therefore, apart from developing new solutions in the cars produced today, it is important to focus on measures that enable the reduction in CO2 emissions in older vehicles. These methods include the adaptation of used cars to run on gaseous fuels. Natural gas is a hydrocarbon fuel that is particularly preferred in terms of CO2 emissions. The article presents the results of research of carbon oxides emission (CO, CO2) in the exhaust gas of a passenger car fueled by petrol and natural gas. The emissions were measured under the conditions of the New European Driving Cycle (NEDC) test and in real road tests. The test results confirm that compared to petrol, a CNG vehicle allows for a significant reduction in CO2 and CO emissions in a car that is several years old, especially in urban traffic conditions.
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