3. (10 points) Assume standard temperature and pressure. Process exhaust gas with a volumetricflow rate of 100,000 cfm that contains 5 gr/ft' of cement particulate matter is to be treated withan ESP. Regulatory requirements dictate that the outlet particulate matter concentration mustbe s0.02 gr/ft'. Assume a plate to plate spacing of 10 inches and an applied voltage of 15,000volts. The smallest particles in the gas stream are 2um in diameter, and all particles have adielectric constant of 5.5. Estimate . The particle drift velocity The required collection plate area to meet regulations Assume that plates with length and height of 30 feet are used. Estimate the number of plates required.

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