Name the industries where ESP can be used. What do you know about its efficiency?

ESPs are frequently used to collect submicron particulate
that arises from combustion, drying operations, process chemical production, and similar
sources. They are also used as polishing devices to reduce particulate loadings to
extremely low levels. They are generally used where the inlet loading of particulate is
under 0.5 grs/dscf and where corrosive gases may be present. They also excel where the
particulate is sticky but can be water
flushed.

Applications
include

• chemical and hazardous waste
  incinerators;


• hog fuel
  boilers;


• acid mists;
  


• steel mill applications;
  


• vapor-condensed
  organics;


• nonferrous metal oxide fumes from calciners,
  roasters, and reverb furnaces;


• veneer dryers;
  


• sludge incinerators;


• and
  blue haze and fume control.

Efficiency of an
electro static precipitator is calculated as :-

E=
1-e(-AVd/Q)

E= Collection
efficiency

Vd = Particle drift velocity 
m/s

Q= Gas flow rate  m3/s

A=
Collecting electrode area m2