Question

Write a brief account of electrostatic precipitator with a neat labelled diagram.

Answer 1

Electrostatic precipitator (ESP) is a filtration device that removes fine particles like dust and smoke from a flowing gas using an high voltage electrostatic charge and collecting them on collecting plates. The electrode wires that are maintained at several thousand volts releases electrons. These electrons attach to dust particles and give them a net negative charge. The collecting plates then attracts negative charged dust particles. The dust particles fall down. This is the principle of electrostatic precipitation. Electrostatic precipitator apply this principle on an industrial scale.