文档介绍：Lecture 6
Design of ESP
DESIGN OF ELECTROSTATIC PRECIPITATOR
Introduction
An electrostatic precipitator (ESP) is a particle control device that uses electrical forces to move
the particles out of the flowing gas stream and onto collector plates. The particles are given an
electrical charge by forcing them to pass through a corona, a region in which gaseous ions flow
[1].
INFORMATION REQUIRED FOR DESIGNING OF ESP
The efficiency of an ESP depends upon two factors
The size of the unit . total square ft. of the collecting plate area
Amount of independent electrical energisation
In addition following details are required for designing an ESP
1. Source of the emission : Properties of the process by which the pollutants are produced
2. Particle size distribution
3. Chemical analysis of dust in relation to particle size
4. Specific eclectic resistivity of dust
5. Dust concentration of clean gas
6. Required dust concentration of clean gas(efficiency)
7. Properties of gas: composition, temperature, pressure.
8. Corrosive properties of gas
9. Gas flow rate
Apart from these variables the design of ESP also include the determination of ancillary
factors such as rappers to shake the dust loose from the plates, automatic control system,
measures for ensuring high-quality gas flow,