NOX-reduction on HD-vehicles-low cost quality check

• Autorzy: Czerwinski J. , Zimmerli Y. , Mayer A. , Heeb N. , Berger H. , D‘Urbano G.
• Języki publikacji: EN

Abstrakty

EN

The NOx reduction of recent HD-vehicle is performed mostly by means of the selective catalytic reduction SCR. There are some manufactures and some applications of SCR as retrofit systems (mostly for the low emission zones LEZ and in combination with a DPF). In charge of Swiss authorities AFHB investigated several SCR-systems, or (DPF+SCR)-systems on HD-vehicles and proposed a simplified quality test procedure of those systems. This procedure can especially be useful for the admission of retrofit systems but it can also be helpful for the quality check of OEM-systems. In the present paper the test procedures will be described and some examples of specific results will be presented. As general conclusions it can be stated: – the foundations for the quality verification procedures of SCR-systems are established, – the SCR-systems are not active at lower temperatures < 200°C, – SCR-testing on vehicle is a simple & low-cost tool for quality check, – the overall average NOx reduction rate depends on the operating profile of the vehicle – for low-load, for cold operation and for interrupted operation (HEV) there are lower NOx reduction efficiencies.

Słowa kluczowe

EN

Diesel particle filter; regeneration of DPF; non-legislated emissions; selective catalytic reduction SCR; NOx-reduction; SCR-quality testing; on vehicle testing

• 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: 2013
• Tom: Vol. 20, No. 2
• Strony: 61--68
• Opis fizyczny: Bibliogr. 7 poz., rys.

Twórcy

autor

Czerwinski J.

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

autor

Zimmerli Y.

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

autor

Mayer A.

• Technik Thermische Maschinen (TTM) Fohrhölzlistrasse 14b, CH-5443 Niederrohrdorf tel.: [phone], fax: [phone]

autor

Heeb N.

• Laboratory of Analytical Chemistry (EMPA) Ueberlandstrasse 129, CH-8600 Dübendorf tel.: [phone], fax: [phone]

autor

Berger H.

• Bundesamt für Strassen (ASTRA) Postfach, CH-3003 Bern tel.: [phone], fax: [phone]

autor

D‘Urbano G.

• Bundesamt für Umwelt (BAFU) Abteilung Luftreinhaltung, Postfach, CH-3003 Bern tel.: [phone], fax: [phone]

Bibliografia

• [1] www.lowemissionzones.eu.
• [2] Jacob, E., Müller, R., Scheeder, A., Cartus, T., Dreisbach, R., Mai, H.-P., Paulus, M., Spengler, J., High Performance SCR Catalyst System: Elements to Guarantee the Lowest Emissions of Nox, 27. Internationales Wiener Motorensymposium, Bd. 2, 2006.
• [3] Cartus, T., Schüssler, M., Herrmuth, H., Giovanella, M., SCR and DPF – From Concept to Production. Mastering Complex, Mutli-Dimensional Challenges, 28. Internationales Wiener Motorensymposium, Bd. 1, 2007.
• [4] Larsen, L. Ch., Development of a Future Complete Exhaust System Solution including a SCR-F based on High Porous Silicon Carbide Filter Substrates, International CTI Conference Emission Reduction for Off-Highway Applications, Lindau 2012.
• [5] Balenovic, M., Stretching the Challenge for SCR Based Aftertreatment Systems, 3. VDIFachkonferenz Abgasnachbehandlungssysteme 2012, Stuttgart 2012.
• [6] Görsmann, C., Rawson, S., Robb, L., Taylor, M., Retrofit-SCRT®-System with Minimised Sekondary Emissions (NH3, NO2, N2O), 10th FAD Conference, Dresden 2012.
• [7] Czerwinski, J., Zimmerli, Y., Mayer, A., Heeb, N., Lemaire, J., D’Urbano, G., Bunge, R., Testing of Combined DPF+SCR Systems for HD-Retrofitting – VERTdePN, SAE Techn. Paper 2009-01-0284, Detroit 2009.