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A horizontal parallel plate ESP consists of a single duct 4.8m height and 6m long with 30cm plate to plate spacing with a collection efficiency of 94.4% is obtained with a flow rate of 95m ^ 3 / min . The inlet loading 14grains / (m ^ 3) Calculate A) bulk velocity of gas. B) Drift velocity C) outlet loading, D) Revised collection efficiency for discharge = 150m^3/ min?
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A horizontal parallel plate ESP consists of a single duct 4.8m height ...
Calculation of Bulk Velocity of Gas:

  • Given, flow rate = 95 m^3/min

  • Area of duct = height x length = 4.8m x 6m = 28.8 m^2

  • Bulk velocity = flow rate / area of duct

  • Bulk velocity = 95 m^3/min / 28.8 m^2 = 3.2986 m/min



Calculation of Drift Velocity:

  • Given, collection efficiency = 94.4%

  • Drift velocity = (1 - collection efficiency) x bulk velocity

  • Drift velocity = (1 - 0.944) x 3.2986 m/min = 0.195 m/min



Calculation of Outlet Loading:

  • Inlet loading = 14 grains/(m^3)

  • Outlet loading = (1 - collection efficiency) x inlet loading

  • Outlet loading = (1 - 0.944) x 14 grains/(m^3) = 0.79 grains/(m^3)



Calculation of Revised Collection Efficiency:

  • Given, new flow rate = 150 m^3/min

  • Revised collection efficiency = 1 - (outlet loading / inlet loading)

  • Revised collection efficiency = 1 - (0.79 grains/(m^3) / 14 grains/(m^3)) = 0.9436 or 94.36%



Explanation:

  • The bulk velocity of gas is calculated by dividing the flow rate by the area of the duct.

  • The drift velocity is calculated using the bulk velocity and collection efficiency.

  • The outlet loading is calculated using the inlet loading and collection efficiency.

  • The revised collection efficiency is calculated using the outlet loading and inlet loading for a new flow rate.

  • These calculations are important in designing and optimizing electrostatic precipitators for air pollution control.

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A horizontal parallel plate ESP consists of a single duct 4.8m height and 6m long with 30cm plate to plate spacing with a collection efficiency of 94.4% is obtained with a flow rate of 95m ^ 3 / min . The inlet loading 14grains / (m ^ 3) Calculate A) bulk velocity of gas. B) Drift velocity C) outlet loading, D) Revised collection efficiency for discharge = 150m^3/ min?
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A horizontal parallel plate ESP consists of a single duct 4.8m height and 6m long with 30cm plate to plate spacing with a collection efficiency of 94.4% is obtained with a flow rate of 95m ^ 3 / min . The inlet loading 14grains / (m ^ 3) Calculate A) bulk velocity of gas. B) Drift velocity C) outlet loading, D) Revised collection efficiency for discharge = 150m^3/ min? for Civil Engineering (CE) 2024 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about A horizontal parallel plate ESP consists of a single duct 4.8m height and 6m long with 30cm plate to plate spacing with a collection efficiency of 94.4% is obtained with a flow rate of 95m ^ 3 / min . The inlet loading 14grains / (m ^ 3) Calculate A) bulk velocity of gas. B) Drift velocity C) outlet loading, D) Revised collection efficiency for discharge = 150m^3/ min? covers all topics & solutions for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A horizontal parallel plate ESP consists of a single duct 4.8m height and 6m long with 30cm plate to plate spacing with a collection efficiency of 94.4% is obtained with a flow rate of 95m ^ 3 / min . The inlet loading 14grains / (m ^ 3) Calculate A) bulk velocity of gas. B) Drift velocity C) outlet loading, D) Revised collection efficiency for discharge = 150m^3/ min?.
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