Definition

1. Noun:
   • An electrostatic precipitator: A "Cottrell precipitator" is a device that removes fine dust particles or other suspended matter from gases by using an electrostatic charge. It is a specific type of air pollution control technology.

Usage

• The term "Cottrell precipitator" is a technical noun used primarily in engineering, industrial, and environmental science contexts to describe a specific piece of equipment for cleaning industrial gas emissions.
• It is often used interchangeably with the more general term "electrostatic precipitator," though it specifically references the inventor, Frederick Gardner Cottrell.

Examples

• Noun:
  • The factory installed a Cottrell precipitator to reduce particulate emissions from its smokestacks.
  • The efficiency of the Cottrell precipitator in capturing fly ash is over 99%.

Advanced Usage

• Historical Context: The device is named after its American inventor, Frederick Gardner Cottrell, who patented the first successful electrostatic precipitator in 1907.
• Technical Operation: The process involves giving the particles in the gas stream an electrical charge and then collecting them on plates or electrodes with the opposite charge.

Variants and Related Words

• Electrostatic precipitator (ESP) (n): The general term for this type of air-cleaning device.
  • Modern electrostatic precipitators are highly efficient.
• Precipitator (n): A more general term for any device that causes particles to separate from a gas or liquid.
• Particulate matter (n): The dust and fine particles that the precipitator removes.

Synonyms

• Electrostatic dust collector: A synonym emphasizing its function.
• ESP: A common abbreviation for electrostatic precipitator.

Related Phrases

• Flue gas cleaning: The broader process in which a Cottrell precipitator is often used.
• Air pollution control device: A general category that includes the Cottrell precipitator.

Noun

1. removes dust particles from gases by electrostatic precipitation