Electrostatic Precipitator Concepts

Electrostatic Precipitator Concepts

Assessment

Interactive Video

Physics

10th - 12th Grade

Practice Problem

Hard

Created by

Patricia Brown

FREE Resource

The video tutorial explains electrostatic precipitators (ESPs), a type of air pollution control system that uses electrical forces to charge and collect particles. It covers the mechanism of particle charging, different ESP designs, efficiency curves, and applications. An analogy with gravimetric settling is presented, followed by a mathematical analysis of ESPs, including equations and an example problem.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary function of an electrostatic precipitator (ESP)?

To generate electricity

To cool down industrial equipment

To control air pollution

To increase air humidity

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do particles get charged in an ESP?

By passing near a corona wire

By being exposed to ultraviolet light

By being heated to high temperatures

By passing through a magnetic field

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the role of collector plates in an ESP?

To increase the speed of air flow

To repel charged particles

To attract and collect charged particles

To neutralize the charge of particles

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the analogy between ESPs and gravimetric settling, what replaces gravity in ESPs?

Thermal forces

Magnetic forces

Electrical forces

Mechanical forces

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the term used for the speed at which particles migrate towards the collector plate in an ESP?

Terminal velocity

Settling speed

Flow speed

Drift speed

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which equation is used to calculate the grade efficiency of an ESP?

1 - exp(-H/U)

1 - exp(-L/LC)

1 - exp(-WT/VT)

1 - exp(-Q/A)

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What factors can affect the terminal drift speed (WT) in an ESP?

Air temperature and viscosity

None of the above

Particle density and size

Both A and B

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