Advanced computer modelling of electrostatic precipitators

ESP performance for various dust densities

“…Recently, the Particle Image Velocimetry (PIV) [8,9] was used in investigations of the flow fields in ESPs [10][11][12][13]. To elucidate the influence of the electrically generated flow disturbances on the gas cleaning process, also numerical modelling investigations were carried out [e.g., [14][15][16]. The results of the numerical modelling of particle collection efficiency showed that the particle collection could be significantly improved if the EHD secondary flow were eliminated [14].…”

“…To elucidate the influence of the electrically generated flow disturbances on the gas cleaning process, also numerical modelling investigations were carried out [e.g., [14][15][16]. The results of the numerical modelling of particle collection efficiency showed that the particle collection could be significantly improved if the EHD secondary flow were eliminated [14]. However, study of the influence of the EHD secondary flow on the collection efficiency is difficult because the EHD flow is complex due to its stochastic nature.…”

A domain decomposition method for three species modeling of multi-electrode negative corona discharge – With applications to electrostatic precipitators

“…Negative corona discharge phenomena occur in a range of industrial applications, including spray painting in the automotive industry, ozone generation, and cleaning of toxic gases [6,8,11,12,14,16,26]. These applications are commonly treated using a one species model for the corona phenomenon.…”

“…In an electrostatic precipitator, which is an air cleaning device, charge that is created by ionization attaches to polluting particles which subsequently are guided towards the collecting plates [4e6, 8,11,12,14,19]. Furthermore, for the considered geometry, Alstom Power in V€ axj€ o, Sweden has performed measurements of the current density at the collector plates [4,5], which are used to validate the domain decomposition method.…”

Using experimental designs for modelling of intermittent air filtration process

“…The modelling of electrostatic precipitator (ESP) has been the subject of many papers [7][8][9][10][11][12][13], but none has used the method of experimental designs which proved to be a good tool for the optimization of such processes. The method used in this paper is to determine a mathematical model for the ESP process of a laboratory model, which will be used to determine optimal values of process factors and also for predicting the outcome of the process for randomly values of the factors.…”