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Working of Electrostatic Precipitator Video Lecture | Biology for JAMB
FAQs on Working of Electrostatic Precipitator Video Lecture - Biology for JAMB
| 1. How does an electrostatic precipitator work? |  |
Ans. An electrostatic precipitator works by using electrostatic forces to remove particulate matter from industrial exhaust gases. It consists of a series of metal plates, known as electrodes, which are charged with high voltage. As the exhaust gases pass through the precipitator, the charged electrodes attract and collect the particles, which are then removed from the system.
| 2. What are the advantages of using an electrostatic precipitator? | |
Ans. Electrostatic precipitators offer several advantages. Firstly, they are highly efficient in removing fine particles, including those that are less than 1 micron in size. Secondly, they have a low pressure drop, meaning they do not significantly impede the flow of gases through the system. Additionally, they can handle high temperatures and are effective in removing both solid and liquid particles from the exhaust gases.
| 3. How does an electrostatic precipitator handle different types of particulate matter? | |
Ans. Electrostatic precipitators can handle a wide range of particulate matter, including dust, smoke, fumes, and mists. The efficiency of the precipitator depends on factors such as the size, electrical resistivity, and concentration of the particles. Different configurations and designs of electrodes can be used to optimize the collection efficiency for specific types of particulate matter.
| 4. Is an electrostatic precipitator environmentally friendly? | |
Ans. Yes, an electrostatic precipitator is considered environmentally friendly. It helps to reduce air pollution by removing harmful particulate matter from industrial exhaust gases before they are released into the atmosphere. By capturing these particles, it helps to improve air quality and minimize the health risks associated with pollution. Additionally, the collected particles can often be recycled or properly disposed of, further reducing their impact on the environment.
| 5. How does maintenance of an electrostatic precipitator work? | |
Ans. Maintenance of an electrostatic precipitator involves regular cleaning and inspection of the system. The collected particles, known as the precipitate, need to be periodically removed from the system to maintain its efficiency. This can be done through various methods such as mechanical rapping or flushing with water. Additionally, the electrodes and other components should be inspected for any signs of damage or malfunction and repaired or replaced as necessary to ensure optimal performance.
Text Transcript from Video
electrostatic precipitator
the carbon and other dust particles
released in the atmosphere from
industries are removed by electrostatic
precipitator in this method two
electrodes are fitted against the inside
walls of the smokestack when high
voltage is applied an electric discharge
takes place across the stack and as a
result air in the stack is ionized the
ionized air consists of ions and free
electrons the free electrons get
attached to the gaseous particles moving
up the stack the particles get
negatively charged and are attracted to
the positive electrode located on the
inner wall of the stack and settle down
there
these can be dislodged from the
electrodes by vibration of the
electrodes and are collected in a
reservoir in this way about 99 percent
of the particulate matter gets removed
from the fuel gases by this process
the carbon and other dust particles
released in the atmosphere from
industries are removed by electrostatic
precipitator in this method two
electrodes are fitted against the inside
walls of the smokestack when high
voltage is applied an electric discharge
takes place across the stack and as a
result air in the stack is ionized the
ionized air consists of ions and free
electrons the free electrons get
attached to the gaseous particles moving
up the stack the particles get
negatively charged and are attracted to
the positive electrode located on the
inner wall of the stack and settle down
there
these can be dislodged from the
electrodes by vibration of the
electrodes and are collected in a
reservoir in this way about 99 percent
of the particulate matter gets removed
from the fuel gases by this process
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