How does air conditioning work? Basically, they use refrigeration for cooling indoor air. This is done by taking advantage of a physical law that states that whenever a liquid is converted into a gas (this process is known as phase conversion), the heat will be absorbed. An air conditioning system will exploit this by forcing special chemical compounds to both evaporate and condense repeatedly within a system of coils that’s been closed off.
The compounds that are involved with this are refrigerants whose properties allow them to change whenever they’re at a really low temperature. Within the air conditioner there’s also a fan that will move the warm air that’s inside of the unit over the top of these cold coils that are full of refrigerant. A central air conditioning system has a lot of ducts that are designed just to funnel the air to and from these coils that are formed like serpentines.
As hot air flows over the top of the cold evaporator coils that operate at a low-pressure, the refrigerant that’s inside of them will absorb their heat as it changes from a liquid into a gaseous state. In order to work efficiently the air conditioner will need to convert the refrigerant gas back to a liquid. Herein a compressor will put the gas under high pressure, creating heat that you don’t want in your home. All of this extra heat is created by compressing the gas, which is then evacuated outside of your home thanks to what are known as condenser coils. This second set of coils, along with a fan changes the cooling gas back to liquid so that the process can begin again.
As you can clearly see there are 2 distinct things going on within the air conditioning system. Refrigerant cools the air inside of your home resulting in a gas that continually compresses and cools back into liquid form again. Now you basically have somewhat of an idea as to how air conditioners work. If you have any air conditioning and heating system needs though, feel free to give us a call.