Modeling particulate charging in ESPs. II. Analytic approximations and refinements

For pt.I see IEEE Trans. Ind. Appl., vol.24, no.5, p.922-7 (1988). In part I the problem of calculating particle charging in electrostatic precipitators in a self-consistent manner was addressed. A general solution in the form of a charging diagram was presented, but the details of the calculation process were left for detailed computer models. Two major simplifications are made by the author. One affects the form of the particulate-space-charge calculation, and the other is an analytic approximation of the corona wire V-I curve. With these simplifications and a bounding condition on the local current density, the self-consistent charging becomes much more tractable. Charging calculations with dilute and concentrated particle streams are compared.<>