How does air conditioning actually work?
Answers:
By the process of heat exchange.
In simple terms, draw warm air from the room over cooling elements (coils or fins that have some coolant fluid running through), the cooling elements draw heat energy from the air (making the air cooler and the coolant in the cooling elements warmer), and blow the cooled air back out into the room. The warmed coolant goes back into the compressor where it is cooled again and gets fed back into the cycle.
It works just like a fridge!
So yours has stopped working otherwise u wud have been enjoying its chill rather then having to think about something like this.
it uses CFC/freon as a circulating liquid to bring the heat out of the house or vice versa.
For fluid, there's a characteristic pressure-temperature relationship between them, so, by giving the fluid work at a certain pressure, u can change its temperature.
it doesnt, it just spreads about germs at work , so if you work in call center like i did you catch everything possible from the air, from everyone else. ewwww..
An air conditioner uses a condensable working fluid--a chemical that easily converts from a gas to a liquid and vice versa--to transfer heat from the air inside of a home to the outside air. This process involves three major components and at least one fan. The three major components are a compressor, a condenser, and an evaporator. The compressor and condenser are usually located on the outside air portion of the air conditioner while the evaporator is located on the inside air portion. The working fluid passes through the insides of these three components in order, over and over again, so I'll start examining what happens to the working fluid as it enters the compressor.
The working fluid arrives at the compressor as a cool, low pressure gas. The compressor squeezes this working fluid, packing its molecules more tightly together so that their density and pressure increase. The squeezing process also does work on the working fluid, increasing its energy and therefore its temperature. The working fluid leaves the compressor as a hot, high-pressure gas and flows into the condenser. The condenser has metal fins all around it that assist the working fluid in transferring heat to the surrounding outdoor air. As this transfer takes place, the closely spaced molecules of the working fluid begin to stick to one another, releasing additional thermal energy into the surrounding air and causing the working fluid to transform into a liquid. By the time the working fluid leaves the condenser, its temperature has almost dropped back down to the outdoor temperature but it is now a liquid rather than a gas.
This high pressure liquid then flows into the evaporator through a narrow orifice. This orifice allows the liquid's pressure to drop so that it begins to evaporate into a gas. As it evaporates, it extracts heat from the air around the evaporator because that heat is needed to separate the molecules of the working fluid. Like the condenser, the evaporator has metal fins to assist it in exchanging thermal energy with the surrounding air. By the time the working fluid leaves the evaporator, it is a cool, low-pressure gas. It then returns to the compressor to begin its trip all over again.
Overall, the working fluid releases heat into the outside air and absorbs heat from the inside air. The direction of heat transfer, from a cooler region to a hotter region, is the reverse of normal and requires an input of ordered energy so that it doesn't violate the second law of thermodynamics (the disorder of an isolated system can never decrease). This ordered energy is used to operate the compressor and is converted into thermal energy in the process. This additional disordered thermal energy enters the outside air and makes up for the additional order that's given to the indoor air as that air is cooled.
The compressor is the heart of your air conditioner. It takes your refrigerant, compresses it, and sends it to a condenser as a high pressure hot gas. The condenser is made up of coils, and located outside where the heat can be left out. You've seen these, the bigger ones have fans to pull air across the coils to remove the heat. The hot gas goes into the coils where the heat it pulled from it. This causes the refrigerant to condense to a cooled liquid. The cooled, pressurized liquid flows to a metering device. The liquid refrigerant is slowly released (metered), depending on the amount needed. The released refrigerant enters the coils of your cooling coil, where the air you want cooled is pushed across it by your air conditioner's fan. The refrigerant absorbs the heat from the air, cooling the air. The heated refrigerant expands to a low pressure gas and goes back to the compressor to cycle back around again.
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