Particulate Trap Selection for Retrofitting Vehicle Fleets Based on Representative Exhaust Temperature Profiles

Document Number: 2001-01-0187

Date Published: March 2001

Author(s):
A. Mayer - TTM
J. Czerwinski - HTA Biel
P. Nöthiger - LOGLINK
R. Zbinden - INFRAS
R. Evéquoz - BUWAL

Abstract:
A methodology for correctly matching trap systems to the vehicle types was developed within the scope of a feasibility study to retrofit the entire Swiss fleet of on-road HDV. Representative test vehicles from 11 vehicle categories were equipped with high-capacity data loggers during a period of 4-6 weeks. Statistical evaluation of exhaust temperatures indicate that data on averages, peaks and frequency distributions alone can be misleading, because these tend to over-estimate the available exhaust enthalpy. Analysis of dwell time intervals, at certain temperature levels, is a better method to assess the energy available for the regeneration. Such verification of duty cycles is indispensable before retrofitting traps and choosing either active or passive regeneration systems.

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Product Status: In Stock

See other papers presented at SAE 2001 World Congress, March 2001, Detroit, MI, USA, Session: Diesel Exhaust Emissions Control (Part A&B)

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