Numerical models for a variety of vehicle emission measurement systems have been developed using Mathematica® software. The sampling systems evaluated include the Constant Volume Sampler (CVS) and the Bag Mini-Diluter (BMD). The CVS system was evaluated as the conventional fixed flow rate system and in a number of configurations designed for improved performance. The enhanced CVS system employs flow rate switch between phases and heated dilution air. This system with various other enhancements was also evaluated. The additional enhancements included proportional ambient sampling, dilution air refinement, heating of system including bags, and heated system with dilution air refinement. Lastly, the Bag Mini-Diluter system was evaluated. The purpose of these models is to help determine which system will be the most effective strategy for Ford Motor Company to utilize for SULEV and below emission measurements.


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    Title :

    Error Analysis of Various Sampling Systems


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE 2001 World Congress ; 2001



    Publication date :

    2001-03-05




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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