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Radiotracer measurement of local deposition profiles, friction reentrainment, and impaction reentrainment in an electrostatic precipitator
Author(s) -
Felder Richar D. M.,
ArceMedina Enrique
Publication year - 1985
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690310109
Subject(s) - electrostatic precipitator , deposition (geology) , drag , chemistry , particle (ecology) , aerosol , meteorology , impaction , mechanics , physics , geology , geomorphology , medicine , oceanography , surgery , quantum mechanics , sediment
A radiotracer‐based method of measuring local particle deposition profiles and reentrainment rates in an electrostatic precipitator has been developed and demonstrated. In tests performed on a pilot‐scale precipitator, differences in local deposition profiles obtained with and without a predeposited layer of dust on the plate were observed. Rates of reentrainment due to gas friction (aerodynamic drag) and to particle impaction on the plate were measured separately, and correlated with a semiepirical formula. Both friction and impaction reentrainment rates were found to vary as powers of the difference between the gas velocity and a minimum velocity required for reentrainment. The impaction reentrainment was found to vary as a power of the inlet dust loading.