The electrostatic precipitator works by removing particles and smoke from a gas stream using an electrostatic charge. Introducing a water spray can reduce the electrical resistance of the dust particles, allowing them to accept the charge more easily.

They only remove particulate matter: Electrostatic air filters reduce levels of particles in the air such as dust, pet dander and other allergens, yet they do not address harmful gases at all. Volatile organic compounds (VOCs) and odors from sources such as tobacco smoke, wood smoke or pets will remain in the air.

Electrostatic precipitators have a high initial capital cost, which makes it prohibitive for small-scale industries. They are expensive to purchase and install. In addition to being costly, they require large space to be set up.

Frederick Cottrell

The collection efficiency of ESP approaches to 99% in most of the cases but the efficiency comes down with higher fraction of fine particles compared to coarser particle (Kim et al. 2010). The overall mass based collection efficiency of ESPs exceed 99%. However, results of field measurements (McCain et al.

Often, poor ESP performance can be traced to an underperforming high voltage power supply. Retrofitting with a high frequency switch mode power supply can quickly reduce particulate emissions at a modest cost, and can often improve the performance of an FGD system.

electrostatic precipitator (ESP) efficiency calculator – formula & step by step calculation to measure the performance of electrostatic precipitators that removes the dust particles & smoke by the system of flowing gas & electrostatic force, based on Deutsch Anderson equation. η = 1 – e(-WA/Q).

PI=Q/(Pr-Pwf) Pwf is calculated from the pump intake pressure (PIP), hydrostatic pressure and friction loss in the casing annulus between the pump setting depth and the datum point. SG is calculated from oil SG and water SG. SG(oil) = 141.5 / (°API+131.5) = 141.5 / (35+131.5) = 0.845.

Migration velocity is defined as the velocity that optimizes the repositioning of the reflected energy to the correct locations. Stacking velocities are normally use as a basis for building a ‘velocity field’ for migration. Figure 12.5 shows a velocity field. Figure 12.5.

Charge Ratio The duty cycle or the charge ratio is defined as the ratio of the number of on cycle to the sum of the on and off cycle The charge ratio can be varies in the range 1:1 to 1:159, which is necessitated to tackle the high resistivity of fly ash encountered in precipitators in India.At higher charge ratios the …

Electrostatic precipitators (ESP) collect dust in the flue gas produced by boiler, etc. Mitsubishi Power contributes to air pollution control at thermal power plants, steel plants , and various industrial plants.