Influence of the Thermal State of Vehicle Combustion Engines on the Results of the National Inventory of Pollutant Emissions

Abstract

The article presents the results of studies on the influence of the thermal state of vehicle combustion engines on pollutant emissions. This influence was analyzed based on data from Poland’s inventory of pollutant emissions for the years 1990–2017. The results show that during engine warm-up, carbon monoxide emission constitutes the largest share (up to 50%) in the national annual total emission. Volatile organic compounds are next in the ranking, whereas the share of nitrogen oxides is the lowest (less than 5%). Under the model traffic conditions, close to those in Poland’s cities in winter, simulation tests regarding additional pollutant emissions from passenger cars during engine warm-up were also carried out. As a result of the cold-start emissive behavior of internal combustion engines, emissions of carbon monoxide and volatile organic compounds showed a considerably greater impact on national pollutant emission, as compared to carbon dioxide, nitrogen oxides and particulate matter. This is particularly evident for the results of the inventory of pollutant emissions from road transport.

Modeling and Prediction of Carbon Monoxide during the Start-Up in ICE through VARX Regression

“…Volatile organic compounds rank next, while the contribution of NOx is the lowest (less than 5%). As a result of the cold-start emissive behavior of internal combustion engines (ICEs), CO and volatile organic compounds' emissions show a considerably greater impact on pollutant emissions compared to CO 2 , NOx, and particulate matter [8]. Accordingly, despite the relevance of this issue, in different places across the world there exists a lack of specific vehicular emissions models for transportation, which makes it more difficult to implement sustainability strategies.…”

Assessment of pollutant emission in Poland from various categories of transport

“…The topics related to inventorying pollutant emissions from various source categories, with respect to pollutants harmful to the health of living beings, as well as greenhouse gases, have been developed in many centres worldwide [1990-2015 air pollutant emission inventory report; Air Quality Pollutant Inventories for England, Scotland, Wales andNorthern Ireland: 2005-2019;Bebkiewicz et al 2020b;Bebkiewicz et al 2021;Bebkiewicz et al 2021c;Bebkiewicz et al 2021b;Bebkiewicz et al 2020a;Chłopek et al 2018b et al 2020b;] comprised the analyses of the emission of greenhouse gases in 1988-2017. The studies [Bebkiewicz et al 2021b;Bebkiewicz et al 2020a] concerned the analysis of road transport emissions of substances harmful to the health of living beings, and above all, particulate matter emissions. The studies from Bebkiewicz et al (2021b;2020a) focused on the influence of road vehicle operating conditions on emissions.…”

“…The studies [Bebkiewicz et al 2021b;Bebkiewicz et al 2020a] concerned the analysis of road transport emissions of substances harmful to the health of living beings, and above all, particulate matter emissions. The studies from Bebkiewicz et al (2021b;2020a) focused on the influence of road vehicle operating conditions on emissions. In Bebkiewicz et al (2021b), the effects on pollutant emissions from the following vehicle operation conditions were examined: urban, rural, highways, and expressways.…”

“…The studies from Bebkiewicz et al (2021b;2020a) focused on the influence of road vehicle operating conditions on emissions. In Bebkiewicz et al (2021b), the effects on pollutant emissions from the following vehicle operation conditions were examined: urban, rural, highways, and expressways. The present study focused on changes in the national annual emissions of selected pollutants from specific transport categories in Poland in the period 1990-2020.…”

“…Substances, emitted to the environment, inventoried according to EMEP EEA procedure [EEA/EMEP Emission Inventory Guidebook 2019] Whereas inBebkiewicz et al (2021b), the effect of thermal condition of internal combustion engines on pollutant emissions was examined. The authors from IOŚ-PIB have not yet published any papers containing the results of the studies on the inventory of pollutant emissions from the categories of transport other than road transport.…”