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Prediction of particle charging in a dilute pneumatic conveying system
Author(s) -
Bunchatheeravate Poom,
Curtis Jennifer,
Fujii Yusuke,
Matsusaka Shuji
Publication year - 2013
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.14025
Subject(s) - particle (ecology) , range (aeronautics) , charge (physics) , mechanics , pipeline transport , economies of agglomeration , triboelectric effect , particle size , charged particle , cross section (physics) , materials science , mechanical engineering , engineering , physics , aerospace engineering , composite material , chemical engineering , ion , geology , oceanography , quantum mechanics
When particles are transported in pipelines, they acquire electrostatic charges as they come into contact with the pipe wall. Charged particles can cause problems such as particle agglomeration, blockage, and explosion. Understanding the particle charge can help to prevent these issues. This study investigates a technique for predicting the particle charge in a straight pipe of any given length, as well as the pipe length at which electrostatic equilibrium occurs, through experimentation in a short 1‐m pipe section. Experimentation with five different types of particles and four pipe wall materials at longer pipe lengths were used to validate the technique. This predictive technique is applicable to a range of particle shapes and sizes under the restriction that charge transfer is due to impact charging. © 2013 American Institute of Chemical Engineers AIChE J , 59: 2308–2316, 2013