How does air conditioning work?
Understanding how air conditioning works is essential to choosing the right system for your needs.
The air conditioners convert liquid refrigerant into gas and then back to liquid for cooling, thereby consuming three times the energy that a compressor can.
Refrigerant
Refrigerator fluid is a key component in air conditioning. It absorbs heat from the indoor environment before dissipating that heat into the outside atmosphere.
The lower boiling point of refrigerator fluid allows it to evaporate more quickly and efficiently into the air, requiring less energy for heat transfer.
The first part of the refrigeration cycle is compression. A compressor compresses liquid refrigerant, converting it into gas and raising the temperature by 1oF.
The refrigerant gas then travels to the condenser which has fans to circulate around its pipes and cool it.
Once the refrigerant has cooled enough to be handled in your home's cooling system, it returns to its compressor where the cycle continues until the metering device in your home indicates that the temperatures have reached the desired level.
Compressor
Air conditioning systems cannot function properly without compressors. By pumping refrigerant throughout your system, they enable it to absorb heat and then release it outside. Without compressors, the temperature in your home would never be able to be adjusted.
The compressor is a metal box with two openings. One for the refrigerant to be taken from an evaporator, and one for the pressurized refrigerant to be sent out through its condenser. There are many types of compressors including reciprocating and spiral models.
Reed valves are used in compressors to regulate the flow of refrigerant. These must be firmly seated to operate efficiently. An intake reed-valve that is not seated correctly could allow refrigerant to leak into the low-side pressure system, increasing low side pressure while decreasing cooling effect.
Condenser
Condensers, which are often overlooked, are a key component of an AC system. This unit is located outside, either on your roof or in your yard. It cools your home by absorbing heat and dissipating it depending on the season.
Heat transfer principles are used to transform the gas that your air conditioner receives from its compressor into liquid. When something heats, its energy is always transferred to cooler substances which absorb it more readily.
You can easily check the temperature of your AC refrigerant by comparing it to the outside air temperature. If it falls outside of its expected parameters, then its cooling performance is inadequate and could cause problems for your AC unit.
It is best to consult a professional if your condenser starts acting up. This will prevent future problems from becoming more serious. For older AC systems, it may be beneficial to replace key components such as condensers on a regular basis.
Evaporator
Evaporators coils work in conjunction with condenser coils and are an essential part of any air conditioner system. They provide both heating and cooling for your home.
Change of state is the process that occurs when liquid refrigerant, entering an evaporator coil quickly transforms into vapor. It does this by absorbing heat from its surroundings.
Evaporator coils play a vital role in the operation of an air conditioning unit. Without sufficient refrigerant, their ability will be severely limited. This will compromise your cooling process and lead to wasted electricity costs.
To perform at their best, coils must be kept clean and free of dirt or grime. The buildup of dirt or grime can reduce their ability to absorb heat and dissipate it efficiently, increasing energy bills and decreasing comfort levels.
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Understanding how air conditioning works is essential to choosing the right system for your needs. The air conditioners convert liquid refrigerant into gas and then back to liquid for cooling, thereby consuming three times the energy that a compressor can. Refrigerant Refrigerator fluid is a key component in air conditioning. It absorbs heat from the…