(a) ESPs are preferred when removal efficiency requirement is below 80%, is this statement correct or not and why? (2) (b) Discuss the design parameters for an ESP (8) (c) A particulate control device has incoming particle mass of 5kg and exists the outlet with a mass of 2kg, what is the efficiency and penetration of the control device? (6) (d) A 95 percent efficient ESP is being designed to treat a gas stream flowing at 7,000 m3/ min. The effective drift velocity is 9.0 cm/s. Calculate the plate area in m2 and the number of plates. Each plate is 800 cm (L) by 1000 cm (Z). There are four sections in the direction of the flow. (15)

Structural Analysis
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Chapter2: Loads On Structures
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(a) ESPs are preferred when removal efficiency requirement is below 80%, is this statement correct or not and why? (2)
(b) Discuss the design parameters for an ESP (8)
(c) A particulate control device has incoming particle mass of 5kg and exists the outlet with a mass of 2kg, what is the efficiency and penetration of the control device? (6)
(d) A 95 percent efficient ESP is being designed to treat a gas stream flowing at 7,000 m3/ min. The effective drift velocity is 9.0 cm/s. Calculate the plate area in m2 and the number of plates. Each plate is 800 cm (L) by 1000 cm (Z). There are four sections in the direction of the flow. (15)

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