Engine Emissions and Air Quality Effects

A special issue of Atmosphere (ISSN 2073-4433). This special issue belongs to the section "Air Quality".

Deadline for manuscript submissions: closed (21 November 2023) | Viewed by 1883

Special Issue Editors


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Guest Editor
DMPE, ONERA, Université Paris Saclay, CEDEX, 91123 Palaiseau, France
Interests: soot; aircraft engine emissions; new particle formation; sustainable aviation fuels

E-Mail
Guest Editor
DMPE, ONERA, Université Paris Saclay, CEDEX, 91123 Palaiseau, France
Interests: soot; aircraft engine emissions; new particle formation; sustainable aviation fuels

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Guest Editor
National Centre for Atmospheric Science/Department of Earth and Env. Science, The University of Manchester, Oxford Road, Manchester M13 9PL, UK
Interests: aircraft emissions; aircraft regulation; ultrafines; aerosol instrumentation

Special Issue Information

Dear Colleagues,

The impact of engine emissions on air quality has become a significant topic of concern in recent years. A recent study from Harvard University found that more than 8 million people died in 2018 from fossil fuel pollution. This death rate is higher than what previous studies have found. Air pollution from burning fossil fuels, such as diesel, was responsible for around 1 in 5 deaths worldwide in 2018. In this context, different transportation sectors have focused on developing different technologies to reduce emissions linked to fossil fuels. One of the principal means to achieve this has been the development of stricter normative links to fuels and the development of sustainable fuels that lead to a reduction in emissions. The objective of this Special Issue is to build a collection of state-of-the-art studies in the field of impact on air quality of engine emissions of different transport sectors, including automobile, ships, and aircraft. Submissions may focus on how constant the impact of these emissions is or on exploring the impact of the evaluation of different measures adopted by a sector to reduce emissions, such as sustainable fuel development.

Dr. Ismael K. Ortega
Dr. David Delhaye
Dr. Paul I. Williams
Guest Editors

Manuscript Submission Information

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Keywords

  • soot
  • road traffic emissions
  • ship emissions
  • aircraft emission
  • new particle formation
  • sustainable aviation fuel
  • biofuels

Published Papers (1 paper)

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Research

26 pages, 7058 KiB  
Article
Particulate Matter Emission and Air Pollution Reduction by Applying Variable Systems in Tribologically Optimized Diesel Engines for Vehicles in Road Traffic
by Saša Milojević, Jasna Glišović, Slobodan Savić, Goran Bošković, Milan Bukvić and Blaža Stojanović
Atmosphere 2024, 15(2), 184; https://doi.org/10.3390/atmos15020184 - 31 Jan 2024
Cited by 4 | Viewed by 1080
Abstract
Regardless of the increasingly intensive application of vehicles with electric drives, internal combustion engines are still dominant as power units of mobile systems in various sectors of the economy. In order to reduce the emission of exhaust gases and satisfy legal regulations, as [...] Read more.
Regardless of the increasingly intensive application of vehicles with electric drives, internal combustion engines are still dominant as power units of mobile systems in various sectors of the economy. In order to reduce the emission of exhaust gases and satisfy legal regulations, as a temporary solution, hybrid drives with optimized internal combustion engines and their associated systems are increasingly being used. Application of the variable compression ratio and diesel fuel injection timing, as well as the tribological optimization of parts, contribute to the reduction in fuel consumption, partly due to the reduction in mechanical losses, which, according to test results, also results in the reduction in emissions. This manuscript presents the results of diesel engine testing on a test bench in laboratory conditions at different operating modes (compression ratio, fuel injection timing, engine speed, and load), which were processed using a zero-dimensional model of the combustion process. The test results should contribute to the optimization of the combustion process from the aspect of minimal particulate matter emission. As a special contribution, the results of tribological tests of materials for strengthening the sliding surface of the aluminum alloy piston and cylinder of the internal combustion engine and air compressors, which were obtained using a tribometer, are presented. In this way, tribological optimization should also contribute to the reduction in particulate matter emissions due to the reduction in fuel consumption, and thus emissions due to the reduction in friction, as well as the recorded reduction in the wear of materials that are in sliding contact. In this way, it contributes to the reduction in harmful gases in the air. Full article
(This article belongs to the Special Issue Engine Emissions and Air Quality Effects)
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