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In‐Situ Measurement of Local Particle Flux Densities in a Complex Two‐Phase Flow
Author(s) -
Schmid HansJoachim,
Veith Susanne,
Umhauer Heinz
Publication year - 2002
Publication title -
particle and particle systems characterization
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.877
H-Index - 56
eISSN - 1521-4117
pISSN - 0934-0866
DOI - 10.1002/1521-4117(200207)19:3<203::aid-ppsc203>3.0.co;2-7
Subject(s) - particle (ecology) , flux (metallurgy) , calibration , flow (mathematics) , electrostatic precipitator , planar , mechanics , channel (broadcasting) , phase (matter) , materials science , physics , computational physics , geology , oceanography , computer graphics (images) , engineering , quantum mechanics , computer science , electrical engineering , metallurgy
An optical measuring technique is presented allowing the exact in‐situ measurement of local particle flux densities in a confined channel flow by counting single particles penetrating an optically well defined measuring volume. This enables a precise flux determination up to the direct vicinity of planar walls. The measurement set‐up and its calibration as well as the whole test facility are described in detail. This measurement technique is used to study the particle transport in electrostatic precipitators. Exemplarily, results of particle flux profiles as well as precipitation, as gained from balances of parts of the precipitator channel, are presented. Furthermore, the possibility to determine particle velocity fluctuations is demonstrated.