___________________________________________________Chapter 4 – Smoke Control Section, Page 4-1
Smoke Control – Principle of Operation
Principle of Operation
The ClearAir Pollution Control Unit removes smoke particles by electrostatic precipitation. The principle of
operation of electrostatic precipitation is actually quite basic. The electrostatic Cell is made up of a series of
aluminum plates spaced approximately 1/4” (6.35mm) apart and the number of Cells used is determined by
the air volume and the type of cooking equipment involved. Every other plate is energized with 5000 volts
of D.C. power and the alternating plates are grounded. At the entry point of the Cell is a series of thin wires
spaced approximately 4” (101.60mm) apart. These wires, referred to as ionizing wires, are energized with
10,000 volts D.C. and as the smoke particles enter the Cell and pass over the wires they receive a positive
charge. As the charged particles continue through the Cell, the positive plate repels them and the negative or
grounded plate attracts them. Thus, the smoke particles are collected on the negative plates. The action is
efficient, safe and simple.
Figure 4-1-1
Electrostatic Cell
Side View
Figure 4-1-2
Electrostatic Cell
Isometric View
