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.
- 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= Collection efficiency
Vd = Particle drift velocity m/s
Q= Gas flow rate m3/s
A= Collecting electrode area m2