Methodology for Performance Evaluation of Dust Control Systems with an Application to Electrostatic Precipitators

Figures & data

FIG. 1 Design characteristics of a single-stage, multi-wire electrostatic precipitator.

FIG. 2 Algorithm for generating the best-fit lognormal distribution parameters d_p and σ _p from cumulative weight fraction series computed through the use of the Nobrega et al. (2004) fractional efficiency model.

FIG. 3 Normalized cumulative weight distributions of particles penetrating electrostatic precipitators, as predicted by the theoretical fractional efficiency model of Nobrega et al. (2004) and optimally fitted by lognormal distribution functions.

FIG. 4 Nomographs for estimating the fractional penetration 1 – Ef _i as a function of the parameters Pe(d_i ) and De(d_i ), based on the Nobrega et al. (2004) theoretical formulation.

FIG. 5 Schematic diagram of the electrostatic precipitator arrangement.

Table

			q S (d i ), coul	w(d i ), m/s	De(d i )	Pe(d i )
i	d i (μm)	C c (d i )	Equation (25)	Equation (24)	Equation (28)	Equation (29)
1	5.50	1.0429	6.563·10^−16	0.2098	16.617	0.837
2	1.40	1.1682	4.253·10^−17	0.0598	4.739	0.0607
3	0.356	1.6880	2.755·10^−18	0.0220	1.743	0.006

Nobrega , S. W. , Falaguasta , M. C. R. and Coury , J. R. 2004 . A Study of a Wire-Plate Electrostatic Precipitator Operating in the Removal of Polydispersed Particles . Braz. J. Chem. Eng. , 21 ( 2 ) : 275 – 284 .

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