Question

Electrostatic precipitator in thermal power plant

Answer 1

The electrostatic precipitators (ESP) are extensively used in the thermal power plant or steam power plant for removal of fly ash from the electric utility boiler emissions. The use of electrostatic precipitators is growing rapidly because of the new strict air code and environmental laws. An electrostatic precipitators can be designed to operate at any desired efficiency for use as primary collector or a supplementary unit to cyclone collector. It is often considered worthwhile to retain an existing cyclone collector as primary collector in the case where the fly-ash collection efficiencies must be upgraded especially where there is a large amount of unburnt carbon in the fly-ash. Because the presence of large quantities of the carbon in the gas can adversely affect the efficiency of the electrostatic precipitator