An Analytical Modeling Approach for Performance Evaluation of Electrostatic Precipitator (ESP)
Keywords:Wet electrostatic precipitator, flow, collection, efficiency, performance.
A coal-fired flue gas contains high concentrations of fine particles which can pose a threat to the environment. In this study, an electrostatic precipitator is used to remove the fine particles of the flue gas from a 100MW coal fired power plant by using a model. A model has been presented to estimate the performance of the wet electrostatic precipitator (WEP) in terms of the number of plates, flow rates and velocity. The equations have been specified for the charging and charge on the single particle of some definite diameter. The effect of the measuring points for the calculation of the effective migration velocities and hence overall performance along with the re-entrainment and gas sneakage have been incorporated. Ranges for the above-mentioned parameters are well defined and it has been observed that after a certain range values across number of plates, velocities and flow rates there is no significant improvement in the performance of the WEP has been calculated.
United States Environmental Protection Agency, 1975. Particulate collection efficiency measurement on a wet electrostatic precipitator. US. Environmental protection technology series. Website: nepis.epa.gov/Exe/ZyPURL.cgi?Dockey=9101MY5I.TXT.Access date: 20 September 2017
W. B. Smith and J. R. McDonald. 1974. "Calculation of the Charging Rate of Fine Particles by Unipolar Ions," presented at Symposium on Electrostatic Precipitators for the Control of Fine Particles, Pensacola Beach, Fla.
Gaylord W. P. 1975. Adhesive Behavior of Dust in Electrostatic Precipitation. Journal of the Air Pollution Control Association. 25(2): 113-117.
Leutert, G. and B. Bohlen. 1972. The Spatial Trend Of Electric Field Strength And Space Charge Density In Plate-Type Electrostatic Precipitators. Staub-Reinholt. Luft. 32(7): 27-33.
White. H. J. 1963. Industrial Electrostatic Precipitation. Addison-Wesley, Reading, Massachusetts.
Miloua. F., Tilmatine. A., Gouri. R., Kadous. N., and Dascalescu. L. 2007. Optimization Of The Rapping Process Of An Intermittent Electrostatic Precipitator. The European Physical Journal Applied Physics. 41(1): 81-85.
John P. G., and Norman L. F. 1975. A Theoretically Based Mathematical Model for Calculation of Electrostatic Precipitator Performance. Journal of the Air Pollution Control Association. 25(2:) 108-113.