Electrostatic precipitability of the coal fly-ash by the pilot scale test

The equation of the particle collection efficiency proposed by Deutsch has been modified through the various experiments to correct the errors caused by the assumptions mode for the equation. In order to get an modified Deuts ch. equation that can be applied to real conditions, a pilot scale electros tatic precipitator is used. The effects of operational variables on the par ticle collection efficiency are evaluated. Particle resistivity, gas temper ature, moisture contents in gas, gas velocity and particle concentration ar e used as the operational variables. Two different types of coal nv-ash obt ained from the fluidized bed combustor and the pulverized coal combustor ar e used as test particulate to evaluate the effect of the physiochemical and electrical characteristics of the particle on the particle collection effi ciency. The experimental results are fitted with the modified Deutsch equat ion made by Matts-Ohnfeldt and the extended Deutsch equation made by E, C. Potter to evaluate the effect of the particle characteristics and the opera tional conditions on the particle collection efficiency of the electrostati c precipitator.