Answered: The particle drift velocity b) The…

The particle drift velocity b) The required collection-plate area and number of plates required. Assume – Standard temperature and pressure.

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Question

Question 2. A coal fired power station requires an ESP for dust removal from the flue gas. The influent flu gas has a concentration of 5200 mg/m3 of dust particles and a flow rate of 150 m3/s. The smallest particles in the gas stream are 1.5 um in diameter, and all particles have a dielectric constant of 5.5. The emission standard is 50 mg/m3. Assume a plate-to-plate spacing of 30 cm and an applied voltage of 15,000 volts. Each plate is 20 m long and 15 m high.
Estimate –
a) The particle drift velocity
b) The required collection-plate area and number of plates required.
Assume – Standard temperature and pressure.

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Step 1: Introduce drift velocity.

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Step 2: Determine the drift velocity.

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Step 3: Determine collection plate area and number of plates.

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