Influences of biocomponents (RME) on regenerations of diesel particle filters

• Autorzy: Czerwinski J. , Stepien Z. , Oleksiak S. , Andersen O.
• Języki publikacji: EN

Abstrakty

EN

The fatty acid methyl esters (FAME's) - in Europe mostly RME *) (Rapeseed methyl ester; Abbreviations see at the end of this paper) - are used in several countries as alternative biogenic Diesel fuels in various blending ratios with fossil fuels (Bxx). Questions arise often about the influences of these biocomponents on the modern exhaust after-treatment systems and especially on the regeneration of Diesel particle filters (DPF). In the present work different regeneration procedures of DPF systems were investigated with biofuels B0, B20 & B100. The tested regeneration procedures were: - passive regenerations: DOC + CSF; CSF alone, - active regenerations: standstill burner; fuel injections & DOC. During each regeneration on-line measurements of limited and unlimited emission components (nanoparticles & FTIR) was conducted. It can be stated that the increased portion of RME in fuel provokes longer time periods to charge the filter with soot. This is due to the lower PM-emissions of the engine, as well as to the higher reactivity and higher SOF-portion of the particle mass from RME. With the passive regeneration system with stronger catalytic activity (DOC + CSF) there is a stronger NO2-production with B100 and due to the NO2-supported oxidation of PM the balance point temperature is approx. 20 centigrade lower, than with B0. For the active regenerations the time courses of emissions and temperatures are closely connected with the chosen regeneration strategy - switching, timing and intensity (of burner, or fuel aerosol generator). A higher portion of biocomponent causes usually a stronger break-down of the instantaneous DPF filtration efficiency during the regeneration procedure - this is an effect of stronger artifact of spontaneous condensation after DPF. In summary there is no negative short term effect of bio-blended-fuels on the investigated regeneration procedures. Some recommendations for a successful long term operation, basing on other works and literature are given at the end of the paper.

Słowa kluczowe

EN

diesel particle filter; regeneration of DPF; biofuels; non-legislated emissions; nanoparticles

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2011
• Tom: Vol. 18, No. 4
• Strony: 65--75
• Opis fizyczny: Bibliogr. 4 poz., rys.

Twórcy

autor

Czerwinski J.

autor

Stepien Z.

autor

Oleksiak S.

autor

Andersen O.

• University of Applied Sciences, Biel-Bienne, Switzerland (AFHB) Gwerdtstrasse 5, 2560 Nidau, Suisse tel.:[phone], fax: [phone],

Bibliografia

• [1] Ullman, J., Eppinger, D., Stutzenberger, H., Straub, G., Factors Influencing Fuel Ageing - Conclusions from Laboratory Experiments and Investigations in Vehicle, 8th International Colloquium Fuels, TAE, Technische Akademie Esslingen, p. 99, 2011.
• [2] Karavalakis, G., Karonis, D., Zannikos, F., Stournas, S., Evaluation of the Oxidation Stability of Diesel/Biodiesel Blends, 8th International Colloquium Fuels, TAE, Technische Akademie Esslingen, p. 109, 2011.
• [3] Jansson, R., Microorganisms Will Always be There, Waiting for the Next Opportunity to Proliferate, 8th International Colloquium Fuels, TAE, Technische Akademie Esslingen, p. 119, 2011.
• [4] Williams, A., McCormick, R., Luecke, J., Brezny, R., Geisselmann, A., Voss, K., Hallstrom, K., Leustek, M., Parsons, J., Abi-Akar, H., Impact of Biodiesel Impurities on the Performance and Durability of DOC, DPF and SCR Technologies, SAE Techn., Paper 2011-01-1136, SAE World Congress, Detroit 2011.