On-board Emission and Odour Measurements on Euro 2 Buses Retrofitted with Different Combinations of PM Traps and SCR VITO, Flemish Institute for Technological Research, Centre of Expertise Energy Technology', Vehicle Technology, Boeretang 200, 2400 Mol, Belgium

Format:

Conference/Event

Author/Creator:

Lenaers, Guido, author.

Conference Name:

8th International Conference on Engines for Automobiles (2007-09-16 : Capri (Naples), Italy)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Naples, ITALY Consiglio Nazionale delle Ricerche 2007

Summary:

The Flemish Transport Company equipped two Euro 2 buses with two different Combined Solution' systems for the simultaneous reduction of NOx and PM. Pre versus post Trap+SCR' emissions of CO, THC, NOx and PM together with post emissions of NH3 were measured over a bus line in Ghent and over driving cycles on a proving ground. NOx was reduced from 70 to 88%. The PM emission reduction however was over 90% for the system with closed trap and only 20% at best for the open trap one. Overall NH3 emissions were low in real traffic and over most test cycles id est below 12 ppm. Pre versus post Trap+SCR' odour concentration measurements by dynamic olfactometry on one bus showed odour removal efficiencies of 71% and 79% on respectively idle and DUBDC cycle. The tail pipe odour concentration in European odour units was respectively 2818 and 1177 ouE/m3

Notes:

Vendor supplied data

Publisher Number:

2007-24-0109

Access Restriction:

Restricted for use by site license