TY - JOUR
T1 - The predictive method for the submicron and nano-sized particle collection efficiency of multipoint-to-plane electrostatic precipitators
AU - Le, Thi Cuc
AU - Lin, Guan Yu
AU - Tsai, Chuen-Tinn
PY - 2013
Y1 - 2013
N2 - The multipoint-to-plane electrostatic precipitator (ESP) is one type of ESP devices used for the sampling and control of nanoparticles and sub-micron particles, with the advantage of a low pressure drop and high particle collection efficiency. Several empirical equations for predicting the particle collection efficiency are available in the literature, but most of them are only applicable to wire-in-plate ESPs. For ESPs with different discharge electrodes, the empirical equations are different since the ion concentration and electric fields are different. In this paper, a predictive method is developed to calculate the particle migration velocity and the particle collection efficiency equation η(%) of multipoint-to-plane ESPs in the form of η(%) = {1 - exp{-[β1(NDeβ2) + β3(NDe) + β4]}} × 100%, in which β1, β2, β3 and β4 are regression coefficients and NDe is the Deutsch number determined by the particle migration velocity. Good agreement is obtained between the present model predictions and the experimental particle collection efficiencies obtained from the literature. It is expected that the present model can be used to facilitate the design of efficient multipoint-to-plane ESPs for nanoparticle and submicron particles removal in the future.
AB - The multipoint-to-plane electrostatic precipitator (ESP) is one type of ESP devices used for the sampling and control of nanoparticles and sub-micron particles, with the advantage of a low pressure drop and high particle collection efficiency. Several empirical equations for predicting the particle collection efficiency are available in the literature, but most of them are only applicable to wire-in-plate ESPs. For ESPs with different discharge electrodes, the empirical equations are different since the ion concentration and electric fields are different. In this paper, a predictive method is developed to calculate the particle migration velocity and the particle collection efficiency equation η(%) of multipoint-to-plane ESPs in the form of η(%) = {1 - exp{-[β1(NDeβ2) + β3(NDe) + β4]}} × 100%, in which β1, β2, β3 and β4 are regression coefficients and NDe is the Deutsch number determined by the particle migration velocity. Good agreement is obtained between the present model predictions and the experimental particle collection efficiencies obtained from the literature. It is expected that the present model can be used to facilitate the design of efficient multipoint-to-plane ESPs for nanoparticle and submicron particles removal in the future.
KW - Deutsch-Anderson equation
KW - Multipoint-to-plane ESPs
KW - Particle control
KW - V-I characteristic
UR - http://www.scopus.com/inward/record.url?scp=84885048169&partnerID=8YFLogxK
U2 - 10.4209/aaqr.2013.05.0144
DO - 10.4209/aaqr.2013.05.0144
M3 - Article
AN - SCOPUS:84885048169
SN - 1680-8584
VL - 13
SP - 1404
EP - 1410
JO - Aerosol and Air Quality Research
JF - Aerosol and Air Quality Research
IS - 5
ER -