Each T-R set powers a specific section of an ESP. If a specific T-R set is powering an area of collecting surface that is too large (> 20,000 ft2), the collection efficiency could be increased by adding an additional TR set, effectively reducing the area which the T-R set must power.
Q. How efficient are electrostatic precipitators?
FFs are high-efficiency collectors and, unlike ESPs, much less sensitive to particulate loading and fly ash characteristics. Design efficiencies are usually better than 99.5%. Overall collection efficiencies of 99.7%–99.9% and fine particulate collection efficiencies >99% are common.
Table of Contents
- Q. How efficient are electrostatic precipitators?
- Q. Why do some factories not use electrostatic precipitators?
- Q. Which of the following air pollution control device has maximum efficiency?
- Q. What are the pollution control devices?
- Q. How does increase in temperature affect air pollution?
- Q. What are the 3 things that affect air quality?
- Q. Does rain reduce air pollution?
- Q. How is air affected by heat?
- Q. Why is heat worse in air quality?
- Q. Does sunlight affect air quality?
Q. Why do some factories not use electrostatic precipitators?
Answer. Factories don’t use electrostatic precipitators because of the high cost associated with it. Explanation: Invented by Frederick Cottrel, an American inventor and physical chemist, the electrostatic precipitator was originally used to recover industrial materials from output materials.
Q. Which of the following air pollution control device has maximum efficiency?
Electrostatic precipitator
Q. What are the pollution control devices?
Pollution Control Device
- Boiler.
- Electrostatic Precipitator.
- Air Pollution Control.
- Selective Catalytic Reduction.
- Emission Factor.
- Flue Gas.
- Flue Gas Desulfurisation.
- Fabric Filter.
Q. How does increase in temperature affect air pollution?
Temperature, Sunlight, and Humidity. Air temperature affects the movement of air, and thus the movement of air pollution. The warmer, lighter air at the surface rises, and the cooler, heavier air in the upper troposphere sinks. This is known as convection and it moves pollutants from the ground to higher altitudes.
Q. What are the 3 things that affect air quality?
Sunshine, rain, higher temperatures, wind speed, air turbulence, and mixing depths all affect pollutant concentrations.
- Sunshine can cause some pollutants to undergo chemical reactions, resulting in the development of smog.
- Higher air temperatures can speed up chemical reactions in the air.
Q. Does rain reduce air pollution?
Rain might ruin a picnic, but when it comes to air pollution, it can actually be a really good thing. This is because, on rainy days, most of the common air pollutants and pollen in the air are washed away, helping to increase the quality of the air.
Q. How is air affected by heat?
What happens when air is heated or cooled? So air, like most other substances, expands when heated and contracts when cooled. Because there is more space between the molecules, the air is less dense than the surrounding matter and the hot air floats upward.
Q. Why is heat worse in air quality?
Air quality decreases during times of hot temperatures because the heat and sunlight essentially cook the air along with all the chemical compounds lingering within it. This chemical soup combines with the nitrogen oxide emissions present in the air, creating a “ smog” of ground-level ozone gas.
Q. Does sunlight affect air quality?
Sunlight and high temperature trigger chemical reactions between primary air pollutants such as nitrogen oxides (emitted by engines) and oxygen, causing a chemical reaction that forms ozone. Heat and sun also transform primary particles into secondary, smaller particles that can be more toxic.
