Working Principle of Air Conditioning

An air conditioner is without doubt a necessity in most of the United States as well as many other countries around the world that experience hot summers.

Air conditioners provide relief from heat and can be used to make you feel relaxed and calm. This is why ACs are growing at a faster rate than air coolers and fans.

You must sit in the office for eight hours because you require great comfort.

The AC's installation absorbs heat from the outside, processes it with refrigerators and coils within it, and then expels cold air.

air conditioning working principlesThis causes the temperature to drop and warm air turns into cold air.

Air conditioning cools and refreshes you without making any noise. This is why air conditioning is a popular choice.

They cool your home's indoor air and provide comfort. Modern AC units come with disposable or washable filter media to prevent allergens and other pollutants from entering your home.

AC Working Components

So what is the working principle of air conditioning? Also, why is AC capacity measured in tons.

These five components are the main ingredients of an air conditioner's working principle.

  1. Evaporator: The evaporator works like a heat exchanger coil. It collects heat from the room using a refrigerant.

    The liquid refrigerant gases absorbs heat and then evaporates to make gas. R-410A, R-22 and R-600A are some of the most commonly used refrigerants. These gases absorb heat in the room and send it to the next part for further processing.
  2. Compressor: A compressor is an exterior air conditioner unit that uses gaseous refrigerant to compress the air and propel it.
  3. Condenser: A condenser, which is an external unit, also collects the vaporized refrigerant and turns it into liquid. Heat is then pushed outside.
  4. Expanding valve: To keep an eye on refrigerant gas, the expansion valve is located between the two coils (the hot and cold).
  5. Refrigerant: The chemical that cools the incoming air is called the refrigerant gas. It can be called Freon gas, or R-22 refrigerant. It can be found in liquid or gaseous forms.

The air conditioner takes warm air from the space and processes it with a refrigerant gas using a set of coils. Cold air is then propelled in its place.

The AC cools the air in the interior by using this principle. Air conditioners do not produce cold air. They work on the principles of chemical and physical phenomena.

The coolant gas inside the AC helps to maintain the desired temperature. The refrigerant gas is heated by the warm air, then becomes a hot liquid.

It falls onto the evaporator coil, which absorbs the heat, humidity and moisture. This process continues until there is no warm air in the room.

Air Conditioner Working Principle

An air conditioner takes warm air from one location and processes it using a refrigerant. Then, it releases the cold air back to the original location where it was collected.

This principle is the basis of almost all air conditioners. Many people believe that air conditioners produce fresh air by using machines inside them, which can cool down a room quickly.

They also claim that it uses so much electricity. This is a lie. It is not a miracle device. The AC cools a room by following a series of chemical and physical phenomena.

The hot air is drawn from below the indoor unit via the grille. It then flows through some pipes through which the refrigerant/cooling fluid is leaking. The refrigerant liquid absorbs heat, making it hotter.

This is how the weather is removed by the air that falls on the evaporator coil. The evaporator coil absorbs heat and also removes moisture from the air.

This helps to reduce condensation. In split AC cases, the hot refrigerant is passed to the compressor on the external unit. The compressor cools down the cooling gas, causing it to heat up.

The hot, high-pressure gas moves on to the third section, a condenser.

The Standard AC Principles that Influence The Cooling

The condenser then condenses hot air vapor to make it a liquid. The hot gas from the refrigerant is transferred to the capacitor as a liquid.

However, the cold liquid quickly turns into a cold gas because the heat from the hot gas is passed to the atmosphere via metal fins.

As the refrigerant leaves the condenser it loses its high temperatures and becomes a cooler liquid. It flows through an extension valve, which is a small hole in copper tubing of the system.

This valve controls the flow cold liquid refrigerant to the evaporator. The refrigerant reaches the place where it began its journey.

All the machinery used in cooling the windows air conditioning through the air conditioner are contained within the same metal box. However, the fundamental operation of cooling is the same.

This process continues until the desired temperature in the space is achieved. An air conditioning unit draws in hot air and then exits the room until it cools down. These AC principles can help you achieve the best cooling for your unique problem.

Air conditioners are so important that we depend on them. It is also surprising to see that they weren't designed for comfort. In order to make the AC work more efficiently, the AC was designed with the AC principle in mind.

What is the Air Conditioner Capacity Measured in Tons?

What is your first reaction when you hear the term "ton?" A ton is a huge amount of weight, roughly 2,000 pounds.

A ton is a completely different concept when it comes to air conditioners. A three-ton conditioner is not three tons in weight.

Can you imagine installing an air conditioner weighing 6,000 pounds in your home? The term "three tons" refers to how cold an air conditioner cools a building in one hour.

Where did this phrase originate? What is the reason we are able to measure air conditioners' capacity in tons?

It has about 12,000 BTU. This is the energy needed to heat 1 lb of water by 1 British Thermal Units. One BTU is one degree Fahrenheit. One BTU is enough to melt 1 tonne of ice in 24 hours.

Heat Measurement

Industry professionals continue to measure how much heat an air conditioner emits from a building as cooling methods have evolved from old-fashioned ice to modern coil models. It can even be measured in tons.

If you have a 3-ton AC, which in HVAC terms is the equivalent of 12,000 BTU, it can remove from your home approximately 36,000 BTU heat per hour.

A qualified HVAC technician can service your regular or self evaporating air conditioner so that the working principle of it works properly.

They will not only save you money on cleaning your air conditioners but also offer superior service. The AC's working principles are thoroughly examined and it is clear that they are designed to provide extra comfort for you in harsh conditions.

The AC principle uses a vapor compression cycle to reduce the temperature of the air. It is accomplished with the aid of a compressor, condenser and expansion valve.

Heat transfer takes place between the refrigerant gas and room air during cooling. The inner air cools down by repeating the cycle until it reaches the desired temperature.

Air conditioning works by collecting heat from the room and using it to create a pleasant atmosphere.


An air conditioner's working principle largely depend on the following components:

Air conditioners cool buildings by transferring heat from indoors to outside. The system's refrigerant gas absorbs heat and then pumps it out through a piping system. The fan is located in the external unit and blows outside air through it, transferring heat from the refrigerant gas into the outdoor air.

Split type systems are common for central air conditioner units. They consist of a hot side, which is the condensing unit, in coordination with the compressor, fan, and condensing coil outside, and a cold side inside.

The cold side consists of an expansion valve and a cold coil. It is often part of your air handler. The air is blown through an evaporator coil to cool the air. Air ducts then route the cool air throughout your home. The same principle applies to a window unit. However, the cold side of the unit is contained within it.

The thermostat, which is part of the air conditioner system, controls the compressor and when used sensibly, helps to control air conditioning costs. The compressor is the pump that allows the refrigerant gas to flow through the system. The compressor's task is to draw in low-pressure, low temperature refrigerant gases in a gaseous form and compress the gas to increase the pressure and temperature. The high-pressure gas flows to the coil.

Condenser coil consists of a series piping and a fan that draws in air from the outside. The refrigerant flows through the coil and cold air passes over it. This heat causes the refrigerant to evaporate and makes the gas liquid. The high-pressure liquid reaches the expansion valve, where it does all the rest.

An evaporator coil is made up of a series piping that is attached to an air handler. The coil absorbs heat from the outside by blowing indoor air across it. Through ducts, the cooled air is flooded throughout the house. The compressor then returns the liquid refrigerant to it. The primary function of an evaporator coil is to extract heat from the atmosphere and add it to the refrigerant.