No one bothers to know about how the car AC system works. They just want them to work. In case you are someone who has always been curious about how car AC works continue reading this blog for a deeper look into the air condition theory, system operation, and system components. For top quality, Ac parts come to auto spare parts Dubai

How Does AC Work In A Car?

The air condition system in a vehicle works by manipulating refrigerant between liquid and a gaseous state. The refrigerant can change its state, so it absorbs heat and humidity from the vehicle and allows the system to give off cool, dry air. To change, the refrigerant between a liquid and gaseous state the Ac system works to control pressure and temperature. 

AC System Refrigenrants 

In the past, the vehicle air condition system used R-12 as the refrigerant. R-12 (aka freon) is a very effective CFC-based (chlorofluorocarbon) refrigerant that is not harmful to humans. But in the late 1980s, it was discovered that R-12 is affecting the earth’s ozone layer. Due to this manufacturers start using R-134a around the 1990s. This refrigerant doesn’t have ozone-destroying properties. In the present day and age R-1234yf, refrigerant is used which produces fewer greenhouse gases.  Auto spare parts Dubai provides all types of Ac refrigerants for your vehicle. 

Ac System Parts 

The car Ac system consists of a few key components. The below enlisted are the main components and their roles; 


The Ac compressor works like the human heart that pumps the fluid so that it would flow in a closed loop through various parts of the system. It is the power unit of the system that separates the low-pressure side from the high-pressure side. It takes in a low-pressure gas compressor and compresses it into high-temperature pressure gas. It is mounted to the front of the engine and driven by a serpentine belt. Triple-A trading has eased your burden by providing you with genuine AC parts at auto spare parts Dubai. 


A condenser is another important component of this system as it reduces the temperature of refrigerant while it maintains high pressure. It also changes the refrigerant from a gaseous state to a liquid state as it cools. Similar to the engine radiator, it uses forced air to transfer heat. It is mounted in front of the vehicle, behind the grill. 


The dryer removes water from the refrigerant using a desiccant (drying agent). It possesses some system-filtering properties. It is mounted on the high-pressure side of the system, between the condenser and metering device. Visit auto spare parts Dubai for quality Ac compressor parts. 

Metering Device 

The metering device is the part of the air conditioning system that drastically reduces the temperature and pressure of the refrigerant coming from the condenser before that refrigerant enters the evaporator. 


The evaporator is an integral part of this system. The refrigerant changes back to a gaseous state in the evaporator which causes a cooling effect. The cabin air is cooled and dried as it blows through  the evaporator. It is the only component that is mounted inside the passenger compartment, behind the dashboard. 

Working Principle An Automobile Or Car Ac 

The working principle of the car air conditioner is the same as the normal AC there is a slight difference. 

The evaporator that exchanges heat used in Ac takes heat from the passenger cabin which in return converts the liquid refrigerant flowing through the evaporator into vapors which again in return provides cooling with the help of a blower fan. These high-temperature vapors and low pressure is then sent to the compressor which in turn pressurizes the vapors and converts them into liquid refrigerant. Now the high-temperature liquid refrigerant is then sent to the condenser which lowers the temperature of this refrigerant by forced convection provided by the radiator fan. The refrigerant is again sent to the evaporator for further process. The receiver dryer provides filtering of the system absorbing the contaminated foreign materials inside the Ac system. And provides a cooling environment. 

Triple-A trading is all about providing quality auto spare parts around the globe. For quality, parts get in touch with auto spare parts dubai. Apart from things buy auto parts online on our website. 

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