How Does the Vehicle Air Conditioner Work?

 Vehicle Air Conditioning Working Principle works in a certain systematic structure. In this article, we will learn how the air conditioner in vehicles works. We will also learn how much fuel the vehicle air conditioner consumes.

Substances absorb heat when they change from liquid to gaseous state. Substances give off heat when they change from gas to liquid state. Heat always flows from hotter matter to cooler matter. A substance absorbs heat (that is, it draws heat from the environment it is in) when passing from a liquid state to a gas state. The law forms the basis of the logic of air conditioning. In liquids, the lower the pressure, the lower the boiling point, that is, the transition from liquid to gas is much easier at low pressure. The state of transition from liquid to gas draws heat from the environment, that is, reduces the temperature of the environment. In the air conditioning system, a special liquid that boils at low temperatures is preferred very easily, this is called a refrigerant. R134a gas, which is preferred in air conditioners, boils and evaporates at -26.5 degrees at atmospheric pressure. These physical rules in pressure, temperature and phase change are applied to the air conditioning system and cooling. How Does the Vehicle Air Conditioner Work? Vehicle air conditioners both cool, clean and dehumidify the air. In the vehicle air conditioning system, there is a pollen filter and an active carbon filter to clean the air. It creates a healthy environment for drivers with allergies. The working principles of the vehicle air conditioner are as follows; Compressor; absorbs the cold gaseous substance from the evaporator by means of low pressure, then compresses it and the trapped substance; It is pressed from the compressor to the condenser in gas form at high temperature and pressure. The colder air hitting the outside cools the very hot air conditioner gas inside and turns it into a liquid state. It exits the condenser in liquid state, at high pressure, at medium temperature. The pressure of the high-pressure liquid is reduced through the "expansion valve" and is sent to the evaporator. It is possible to live from high pressure to low pressure. In the evaporator, the air conditioner gas, which changes from liquid to gas, draws heat from the environment, that is, cools it. The clean air passing through the evaporator with a fan leaves its heat in the evaporator and passes into the vehicle in a cooled way. In other words, the air blown into the vehicle is cooled there. How Much Fuel Does a Vehicle Air Conditioner Burn? The use of air conditioning affects fuel efficiency to varying degrees, depending on the age, speed, engine power, size and outside temperature of the car. Choosing the right air conditioner consumes 1-1.5 liters of fuel per 100 kilometers in diesel cars and 1-2 liters in gasoline engines.