COTTRELL PRECIPITATOR Meaning and
Definition
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The Cottrell Precipitator, also known as an electrostatic precipitator (ESP), is a highly efficient air pollution control device that uses the principle of electrostatic precipitation to remove particulate matter (PM) from industrial gas streams. It is widely applied in power plants, cement factories, steel mills, and other industries where emissions of dust and fine particles need to be minimized.
The Cottrell Precipitator works by charging the particles in the gas stream with high voltage electrodes. As the charged particles pass through a strong electric field, they become polarized and are attracted to oppositely charged collection plates or tubes. The accumulation of particles on the collection surface forms a layer of dust, which can be removed periodically through mechanical means.
This technology is highly efficient in removing even fine particles, including those less than one micron in size. It helps to reduce air pollution and minimize health hazards associated with exposure to PM, as these particles can cause respiratory problems when inhaled.
The Cottrell Precipitator offers several advantages, including high collection efficiency, low energy consumption, and relatively low operating costs. It can effectively remove up to 99.9% of dust particles from industrial gas emissions. Additionally, it has a long operating life and requires minimal maintenance.
Overall, the Cottrell Precipitator is an essential air pollution control tool in various industrial sectors, aiding in the reduction of emissions and promoting cleaner air quality.
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Etymology of COTTRELL PRECIPITATOR
The word "Cottrell Precipitator" is named after Frederick Gardner Cottrell, an American scientist and inventor who developed and patented the device in 1907. Cottrell was researching methods to control air pollution and designed the electrostatic precipitator as a means to remove particulate matter and smoke from industrial exhaust gases. The device, later known as the Cottrell Precipitator, was widely adopted and became an important tool in controlling air pollution. The term "precipitator" refers to the process of precipitation, where the particulate matter is removed from the gas stream by electrostatic attraction and forms a solid precipitate.
