Auflistung nach Autor:in "Kittelson, David B."

Gerade angezeigt 1 - 1 von 1

Real-time characterization of ultrafine and accumulation mode particles in ambient combustion aerosols
(Elsevier, 08/2002) Bukowiecki, Nicolas; Kittelson, David B.; Watts, Winthrop F.; Burtscher, Heinz; Weingartner, Ernest; Baltensperger, Urs
The diffusion charging sensor (DC), photoelectric aerosol sensor (PAS) and condensation particle counter (CPC) are real-time particle instruments that have time resolutions < 10s and are suitable for field use. This paper shows how the relative fraction of nuclei mode particles (D ≤ 50nm) in ambient combustion aerosols can be determined, along with the coverage degree of the respective accumulation mode particles with a modal diameter of ~ 100nm. Main tools for interpretation are the diameter of average surface DAve,S (obtained from CPC and DC measurements) and PAS/DC versus DAve,S scatter plots. Compared to the scanning mobility particle sizer (SMPS), which is a standard instrument for aerosol particle size distribution measurements, the presented method has a limited accuracy, but is substantially faster. Additionally, it is experimentally less demanding than SMPS measurements, especially for field applications.
01A - Beitrag in wissenschaftlicher Zeitschrift