How Air Conditioner Works
Introduction
Everyone of us came across the air conditioners in our daily life. It makes us feel awesome. In summers many people use air conditioner to bear the heat radiations in our surroundings. let us see how airc onditioners works.
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Difference between Air Conditioner and Air Cooler
Air Conditioner: It will circulate the internal air of the room again and again. It uses CFC’s as refrigerant. It consumes high energy
Air-cooler: It will takes air from outside and makes it cool, and it doesn’t make the air dry as Air conditioner makes. Air Cooler uses water as it’s refrigerant and it is a eco-friendly device and it is easy to install portable one. It consumes less less energy.
Components in AC:
The air conditioner has two connected coils, with continuously flowing refrigerant fluid inside them. The coil inside the room is called evaporator, and coil outside the room is called condenser.
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How it works?
The main function of air conditioner is maintaining the evaporator cooler than the surrounding temperature and the condenser hotter than the surrounding temperature. It is done by, fluids flowing inside the coil. The flowing fluids absorbs heat from the room and eject it to the surrounding. To maintain the flow, we need a compressor and the expansion valve. The compressor increases the pressure of a refrigent. Compressor maintains this fluid in gaseous state and increases the pressure. As the pressure increases the temperature also increase. The temperature at the outlet of the compressor is far higher than the surrounding. This heated gas is ejected via condenser. The fan in the condenser unit make this process easier. An expansion valve is fitted at the exit of condenser. The purpose of this valve is to restrict the refrigerant flow, it is achieved by reducing the presser of the fluid. Here the temperature of the fluid are decreased by decreasing pressure. Now the fluid due to evaporation, changed into gas. So now by passing this low temperatured gases, to room. Temperature of room is decreased.
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Common doubt:
We can notice that term named “ton” is associated with the air conditioner, it is the measure of air conditioner’s heat removing capability.
Air Conditioner in real time:
Near to the evaporator coil, air temperature is quite low, this will lead to water condensation at the evaporator coil. We use pipe to remove this waters. Modern air conditioner uses scroll compressor. By using this compresor we can control the speed of the motor in the compressor. By controlling the motor speed, we can control the flow rate of fluid, cooling capacity and room temperature.
(Reference: https://youtu.be/gVLhrLTF878 , https://youtu.be/8OGH9upKHtQ)
