This paper describes a new sampling concept for particle emission measurements. The purpose is to produce repeatable and reproducible conditions for nucleation phenomena. The exhaust is sampled and instantaneously diluted by inserting a porous tube diluter inside the tailpipe. This is carried out in order to prevent uncontrolled sample transformations in sampling lines. The sampling system was tested in size distribution measurement of light duty diesel vehicle. The tests showed a clearly bimodal size distribution with distinguished nuclei and accumulation modes.
Sampling Method for Particle Measurements of Vehicle Exhaust
Sae Technical Papers
SAE 2001 World Congress ; 2001
2001-03-05
Conference paper
English
Sampling method for particle measurements of vehicle exhaust
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