Because of legislation such as the Clean Air Act and the 1977 and 1990 Clean Air Act Amendments, ESPs have been carefully designed to collect more than 99.5% of particles in the flue gas from many industries. ESPs efficiently collect particles of various sizes: large particles of 3 to 10 μm in diameter, and smaller particles of less than 1 μm in diameter.
An ESP is designed for a particular industrial application. Building an ESP is a costly endeavor, so a great deal of time and effort is expended during the design stage.Manufacturers use various methods to design ESPs. They also consider a variety of operating parameters that affect collection efficiency including resistivity, electrical sectionalization, specific collection area, aspect ratio, gas flow distribution, and corona power. This lesson focuses on these methods and operating parameters.
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