How does a smoke precipitator work GCSE?
Electrostatic precipitators Smoke comprises tiny solid particles, such as unreacted carbon, which can damage buildings and cause breathing difficulties. Smoke particles pick up a negative charge. Smoke particles are attracted to the collecting plates. Collecting plates are knocked to remove the smoke particles.
What is smoke precipitator?
Smoke precipitator is a device that removes smoke or other particles from air by using high voltage electrostatics. The smoke precipitator forces dirty flue gas between two electrodes.
How does an electrostatic precipitator work GCSE physics?
The Electrostatic Precipitator The wires are charged to a positive charge of about 50,000V. As the smoke passes over the wires the particles carried in the smoke become positively charged. These particles are then attracted towards negatively charged collecting plates where they stick.
How does a Van de Graaff generator work GCSE?
A Van de Graaff generator removes electrons to produce a positive charge on its dome. This force will act on any charged particle in the electric field around the dome. A person insulated from the ground and touching the dome of the Van de Graaff generator will also lose electrons and become positively charged.
How much does an electrostatic precipitator cost?
Cost Effectiveness: $73 to $720 per metric ton ($65 to $660 per ton) Theory of Operation: An ESP is a particulate control device that uses electrical forces to move particles entrained within an exhaust stream onto collection surfaces.
Is smoke electrically charged?
Smoke consists of microscopically tiny particles of soot (unburned carbon) dispersed through hot, rising air. In theory, the electrically charged smoke particles would cling to the sweater, removing the dirt from the smoke and leaving clean hot air to emerge by itself.
What is corona ESP?
An electric field is established between the discharge and collecting electrodes, and the discharge electrodes will exhibit an active glow, or corona. As the flue gas passes through the electric field, the particulate takes on a negative charge. Corona on a high-voltage ESP wire. Collecting.
What does an electrostatic precipitator remove?
Description. An electrostatic precipitator (ESP) removes particles from a gas stream by using electrical energy to charge particles either positively or negatively. The charged particles are then attracted to collector plates carrying the opposite charge.
Where is electrostatic precipitator used?
Originally designed for recovery of valuable industrial-process materials, electrostatic precipitators are used for air pollution control, particularly for removing harmful particulate matter from waste gases at industrial facilities and power-generating stations.
What happens if you touch a Van de Graaff generator?
If you touch the generator, all that electricity will go through your body giving you a big shock. It can actually be dangerous. You can be protected from the ground by standing on a piece of rubber or plastic. We say plastic and rubber are insulators since charges can’t travel through them very easily.
Is a Van de Graaff positive or negative?
Most Van de Graaff generators build up a positive electric charge on their domes by separating negative electric charge from positive electric charge. This is accomplished by a rotating insulated belt. When two different materials are rubbed together, one object takes away electrons from the other object.