Catalytic converter - degradation over lifecycle
  • Help
Results 1 to 2 of 2
  1. #1
    1000+ Posts Haakon's Avatar
    Join Date
    May 2002
    Location
    canberra...
    Posts
    8,876

    Default Catalytic converter - degradation over lifecycle

    Heres a question for the nerdy tech heads - we all know a catalytic converter will fall off in performance over a given life cycle.

    And that they perform poorly from cold start, with emissions being less converted until the catalyst reaches "operating temp".

    Advertisement


    But - does the cold performance fall away at the same rate as hot, or do they perform worse when old when cold in relation to their old hot performance. If that made sense...
    I tried to drown my sorrows in alcohol, but the bastards learnt how to swim

  2. #2
    Tadpole
    Join Date
    Dec 2010
    Location
    Canberra, Australia
    Posts
    23

    Default

    Try searching scholar.google.com.au
    I found
    Three-Dimensional Simulation of the Transient Behavior of a Three-Way Catalytic Converter http://www.rz.uni-karlsruhe.de/~cf01...dmann_etal.pdf
    This describes how a catalytic converter warms up after 10s, 41s and 140s. Surprisingly, it only takes 140s for a cat to be thoroughly warmed so they start working quite quickly.

    It doesn't answer your question about degradation over time, but there must be a paper on that subject somewhere.
    Last edited by Amelie; 18th June 2011 at 11:59 PM. Reason: changed 410s to 140s

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •