How Does Air Conditioning Work?

How Does Air Conditioning Work?

Most people associate air conditioners with cold air while in reality the basic principle behind the functionality of an air conditioner is heat transfer. When the hot air gets removed from a particular area the remaining cold air is able to cool the room. In order to understand the functionality of air conditioners it is important we understand the major components of an air conditioner. The major components are the outdoor unit and the indoor unit. In fact, to be precise air conditioners work in the same way as does refrigerators. The only difference is that refrigerators cool only a small insulated space while air conditioners cool a larger space like a room, a building and sometimes an entire commercial center.

The indoor unit of an air conditioner is generally located in a closet or in the basement and is nearer to the furnace. The unit box is an integral component of the indoor unit that contains the evaporator. It is the evaporator that allows the refrigerant such as Freon to evaporate and absorb heat. Hence, once the hot air is absorbed from a room space only cool air remains to be circulated within the room.

Similarly, the outside unit is located outside the house and it is in the outside unit that the evaporated heat is dispersed. The major components of the outdoor unit are the compressor, condenser coil and the fan. As the hot air from the room or the building gets moved by the refrigerant to the outdoor coil, it then passes through the compressor. The main function of the compressor is to move the refrigerant throughout the system. This is necessary because it helps the system use the refrigerant.

Thus, the three main parts of an air conditioner are the compressor, the condenser, and the evaporator. However, it is important to mention that the process of evaporating and cooling continues till the room reaches the desired temperature. Once the room reaches the desired temperature the thermostat detects it and the air conditioner is turned off. Once again when the room becomes warm the air conditioner starts operation.

One concern with the refrigerant like Freon is that it had environmental concerns. It is believed that the older refrigerant had chlorine atoms which could damage the ozone layer. However, in recent times this kind of refrigerant has been replaced with more environment friendly element.

You must be aware of the fact that air conditioners do not only cool the internal air but also has air filters that have the capacity to keep away air contaminants away from the internal air. At the same time air conditioners also work as dehumidifiers. As it reduces the temperature of a volume of humid air it is natural that it releases some part of the moisture. In fact, that is the reason as to why on humid days air conditioners release water.

Last but not the least, the functions of air conditioner though seems simple involves quite a bit of science and complexity.



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