Possible Solutions for Checking Particulate Matter Filters (DPF) in Motor Vehicles

Abstract:

Solid carbon (C) is produced during hydrocarbon fuels combustion by the molecules heat decomposition process in a local lack of oxygen. More reactive hydrogen consumed the part of oxygen in the zone of an oxygen-rich mixture, so carbon particles are not gaining access to oxygen. Solid carbon particles are bound to other various materials such as mechanical impurities, sulphates, condensates, and liquid fuel residues, some of them with high toxicity – such as polycyclic aromatic hydrocarbons (PAH). The cause of high solid carbon emissions is a significant inhomogeneity of the mixture up to the value λ = 0 inside the fuel droplets where oxygen absences up to λ = ∞ in the space where fuel does not even come. Therefore, solid carbon emissions highly depend on the quality of atomization of the fuel which is injected into the cylinder. The supply of oxygen required for oxidation is improved by increasing the total amount of the air in the cylinder. In Slovakia as well as in other countries (the Czech Republic, etc.), there have been recently multiple instances of removing catalysts from vehicles by services, deactivation of diesel particulate filters (DPF, SCR), or vehicle control units reprogramming (tuning), or a combination of the previous actions. From the perspective of a company and its interest, it is a large interference with vehicle design, and it also affects the relationship with the environment. From the perspective of society, it is irrelevant whether it is the individual's conduct or the conduct of certain groups. This article explores the possible solutions for checking the illegal diesel engines conversion due to deactivation of particulate matter filters in exhaust systems of diesel engines as well as the current legislation that covers this issue.

• Periodical: Advanced Materials Research (Volume 1059)
• Pages: 119-125
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1059.119
• Online since: December 2014
• Authors: Peter Lenďák, Juraj Jablonický, Daniela Uhrinová, Ján Kosiba, Ján Polerecký
• Keywords: Exhaust Gases Emissions, Particulate Matter, Particulate Matter Filters

References

[1] M. Šuta, The dust particles and human health, in: Conference OZ CEPTA Clean Air in European Cities (02/12/2013), information on http: /www. cepta. sk/index. php/sk/kvalita-ovzdusia/123-informacie-o-teme-a-kontakty/500-ciste-ovzdusie-v-europskych-mestach.

[2] WHO / IARC, Soot from diesel engines is carcinogenic (12. 6. 2012), information on http: /www. iarc. fr/en/media-centre/iarcnews/2012/mono105-info. php.

[3] J. Urban, J. Trnka, Engines, Bratislava, Alfa, (1992).

[4] D. Uhrinová, M. Landis, I. Schiess, J. Jablonický, M. Prístavka, Operating parameters and emission evaluation of tractors running on diesel oil and biofuels, Research in Agricultural Engineering, 57 (2011) 35–42.

DOI: 10.17221/51/2010-rae

[5] P. Lenďák, Problem of emission control tests for motor vehicles in the Slovak Republic, in: Conference OZ CEPTA Clean Air in European Cities (12. 02. 2013), information on http: /www. cepta. sk/index. php/sk/kvalita-ovzdusia/123-informacie-o-teme-a-kontakty/500-ciste-ovzdusie-v-europskych-mestach.

[6] D. Uhrinová, J. Jablonický, Ľ. Hujo, J. Kosiba, Z. Tkáč, M. Králik, J. Chrastina, Research of limited and unlimited emission effect on the environment during the burning of alternative fuels in agricultural tractors, Journal of Central European Agriculture, 14(4) (2013).

DOI: 10.5513/jcea01/14.4.1368

[7] P. Lenďák, Ľ. Hujo, J. Jablonický, M. Angelovič, Implementation of a new methodology of emission inspections in motor vehicles with and advanced emission systems, Acta Technologica Agriculturae, 16(1) (2013) 9–13.

DOI: 10.2478/ata-2013-0003

[8] I. Vitázek, B. Vitázková, R. Majdan, Concentration of CO in a closed environment, in: Proceedings of the International Scientific Conference Techniques in Agrisector Technologies 2012, Nitra, SPU, 2012, p.227–233.

[9] M. Pexa, K. Kubín, M. Novák, J. Pošta, Fuel consumption and emission of tractor Zetor Forterra 8641, Acta Technologica Agriculturae, 13(3) (2010) 79–83.

[10] I. Vitázek, J. Havelka, Combustion with reduced NOX content, in: Proceedings of the International Scientific Conference Energy and Environment 2005, Ostrava, VSB-TU, 2005, p.17–21.

[11] Act No 725/2004 on conditions of vehicle operation on roads.

[12] Ministry of Transport Decree No 578/2006 laying down the details on certain provisions of the Act No 725/(2004).

[13] Ministry of Transport Decree No 464/2009 laying down the details on vehicle operation in the road traffic.