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How does it work? - Air conditioner

How does it work? - Air conditioner

An air conditioner cools the air inside by drawing heat away and releasing it outside.

Technology

Keywords

air conditioner, air-conditioned building, external unit, indoor unit, compressor, refrigerant, heat release, cooling, evaporation, technology

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Scenes

  • - It compresses warm vapor flowing out of the indoor unit, making it hot and therefore releasing heat while flowing into the external unit.
  • - It reduces the high pressure of the warm liquid, which cools down and partly evaporates. The resulting cold vapor-liquid mixture flows into the indoor unit.
  • - While the hot vapor flows through the condenser, it releases heat into the environment and condenses.
  • - The cold vapor-liquid mixture leaving the expansion valve.

  • - The cold vapor-liquid mixture leaving the expansion valve conveyed into the indoor unit.

  • - It compresses warm vapor flowing out of the indoor unit, making it hot and therefore releasing heat while flowing into the external unit.
  • - While the hot vapor flows through the condenser, it releases heat into the environment and condenses.
  • - The cold vapor-liquid mixture leaving the expansion valve conveyed into the indoor unit.

Narration

Air conditioners used to cool down the interior of buildings consist of two main parts: an indoor unit and an external unit. The apparatus blows cold air into the room, that is, it draws heat away from the air and releases it outside.
Let's follow the phases of this process starting in the indoor unit. The refrigerant – a mixture of cold vapor and liquid – flows into the pipe system of the indoor unit. The air in the room is circulated through it by a fan. The air in the room cools down, while the refrigerant becomes hot and evaporates completely.

The warm vapor flows from the indoor unit into the compressor of the external unit, which compresses it and causes its pressure and temperature to rise. The resulting hot vapor is conveyed into the condenser, where the difference in temperature of the vapor and its environment causes the vapor to release heat. The vapor flowing in the pipe condenses, turning into a liquid.

This partly cooled, warm liquid then enters the expansion valve. It collects here and therefore the pressure in the incoming pipe is high, while the pressure in the outgoing pipe is low. The pressure drops suddenly and therefore the liquid partly evaporates and cools down. The resulting mixture of cold vapor and liquid is conducted back into the indoor unit.

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