TY - JOUR
T1 - Influences of gas velocity and particle distribution on PM10 collection in wire-plate ESP under diffusion charging mechanisms
AU - Zhang, Jian-Ping
AU - Zhou, Ai-xi
AU - Du, Yu-Ying
AU - Wu, Helen
AU - Ren, Jian-Xing
AU - Hu, Dan-Mei
PY - 2014
Y1 - 2014
N2 - To study the PM10 collection in a wire-plate ESP, a numerical model was built and performed by FLUENT software. Deutsch-Anderson Equation was subsequently applied to collection efficiency calculation. The numerical results under different gas velocities at inlet and particle distributions indicate that the collection efficiency of PM10 increases with a decrease in gas velocity, and that the increment of grade efficiency will become bigger if particle diameter gets smaller. By comparing with a decrease in gas velocity, diffusion charging mechanism is found to be valuable for PM10 in aspect of collection. As two parameters of Rosin-Rammler distribution decrease, grade efficiency will increase, especially for fine particles, and a larger positive effect the diffusion charging mechanism will have on collection efficiency, but overall efficiency will decrease. Finally, the effect of particle distributions on grade efficiency is much smaller than that of diffusion charging mechanism or the gas velocity at inlet.
AB - To study the PM10 collection in a wire-plate ESP, a numerical model was built and performed by FLUENT software. Deutsch-Anderson Equation was subsequently applied to collection efficiency calculation. The numerical results under different gas velocities at inlet and particle distributions indicate that the collection efficiency of PM10 increases with a decrease in gas velocity, and that the increment of grade efficiency will become bigger if particle diameter gets smaller. By comparing with a decrease in gas velocity, diffusion charging mechanism is found to be valuable for PM10 in aspect of collection. As two parameters of Rosin-Rammler distribution decrease, grade efficiency will increase, especially for fine particles, and a larger positive effect the diffusion charging mechanism will have on collection efficiency, but overall efficiency will decrease. Finally, the effect of particle distributions on grade efficiency is much smaller than that of diffusion charging mechanism or the gas velocity at inlet.
UR - http://handle.uws.edu.au:8081/1959.7/535147
U2 - 10.4028/www.scientific.net/AMR.864-867.1399
DO - 10.4028/www.scientific.net/AMR.864-867.1399
M3 - Article
SN - 1022-6680
VL - 864-867
SP - 1399
EP - 1407
JO - Advanced Materials Research
JF - Advanced Materials Research
ER -