Question:
How does an air conditioner work?
How does an air conditioner work?
The window unit one and the Central One.
and How does an air conditioner uses electricity(What part of air conditioner uses electricity?)?
Answer:
Basically there are two air coils. One gets hot and one gets cold. One fan blows on the hot coil and and one fan blows on the cold coil. The air coming off the coil will be hot or cold as you would expect.
There is a fluid connecting them in a loop, and a pump to move the fluid around the loop. The fluid follows the PV=nRT equation. This equation only means that if you add heat the pressure goes up...or if you add pressure then it gets hotter. The reverse is true as well; cool it off and pressure goes down.
So the pump makes the fluid in one coil really high pressure (and hot), and makes the other coil a lower pressure (and cooler). The difference in pressure is maintained by a valve and the pump.
So there you have a basic heat pump (energy mover). If the system runs one way it is called a Air Conditioner; when it runs the other way it is called a heat pump.
The system is more efficient when the fluid undergoes a phase change (liquid to gas). In this case the system takes advantage of latent heat. Chemicals very adept at this, while at reasonable pressure and temperatures, are called refrigerants. There are many refrigerants, and blends of refrigerants.
A window unit and a central system have the same components. A central system uses tubes (ducts) to move the air off the indoor coil to the rooms it is designed to serve. A window unit does without the duct and blows directly into the space.
Electricity is used by the pumps (compressors) and fans in the system.
Typically, central systems are more expensive and also more efficient then window units.
