How does your AIR CONDITIONER work?

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Air conditioners give you the much needed thermal comfort during scorching summer. More specifically, air conditioners help to maintain the room temperature at optimum level. They also help in removing airborne particles and humidity from the room. Let’s find out how how these devices work.

[etherealvox]

To understand how an AC works, one needs to understand the thermodynamic phenomena that occur :
1.Heat travels from HOT to COLD naturally.
2.Boiling point of a liquid depends on both temperature and surrounding pressure. Water boils at 100 degr C / 1 bar atm pressure. If you lower the atm pressure below 1 bar, it will boil at less than 100 degr C.
3.When a liquid ABSORBS heat it EVAPORATES. When vapor releases heat, it CONDENSES
4.If a liquid is compressed, the pressure increases, temperature increases while volume decreases.
So, when the refrigerant (liquid+vapor) gets into the evaporator (inside the house ), it absorbs the heat from that room, hence, it evaporates . Now, in order for condensation to occur in the Condenser(outside the house), the now vapor refrigerant(hot) needs to be hotter than the outside air so that to give away the heat (see point 1 and 3 from above) and condense (become liquid again). For this to happen, the compressor compresses the vapor refrigerant thus increasing its temperature (see point 4 ) . When the compressed vapor refrigerant enters the condenser, it releases some of the heat into the surrounding air which has a lower temperature ( see point 1 ), and transforming into a liquid ( condensation ) . The liquid now passes through an expansion valve, where its pressure is reduced and the liquid begins to boil (SOME vapors form) thus releasing some of its energy (heat) becoming even colder.Now we have a mix of cold liquid+vapor ready to repeat the cycle .

[casienwhey]

I am glad there are humans smarter than me who invented this technology and by doing so made all of our lives better.

[AshiqurRahman]

In my place this is very hot summer now. I am watching AC videos to get the feeling of having an AC. I am poor.

[potatoes]

The only thing you need to know is, there is no such a thing as "cold energy". Cold is simply the lack of heat. So if you want to know the simple way how your AC works. It doesnt generate cold but simply transfer the heat inside your room to outside. Now with the lack of heat in your room, it will naturaly feel "cold" .

[SLIDUS]

It's still all magic as far as I'm concerned.

[RakeshRoshan]

Today I am feeling a special respect to my air conditioner

[anthonyc]

Everyone gangsta until this man explains the function of an air conditioner

[shivankrajput]

You just made me feel i don't deserve Air conditioners.

[dynxmitofficial]

Shoutout to all the engineers who figured all this out.

[likhith-lexus]

I thought I was the only one who understood nothing, until I started reading comments 😂😂😂

[TampaTec]

Me 1:00 🤓
2:00 🤔
3:00 🥴
4:00 🤯
7:42 🤕 I think I know less than before somehow?!

[mushfiqurrahman]

Learned more than my 4 years course in Mechanical Engineering.

[bewaretheclaw]

I have had this explained to me in so many ways so many times, and for some reason I still cannot comprehend. 🤪

[randommemesweekly]

quarantine: *exists*

my mind: how does an air conditoner work?

[jaylen]

In HVAC School and this video helped a lot. Basically your AC doesn't make cold air. It simply transports the "hot" air inside the living space to the outside space by using refrigerant as a medium. 1. Compressor inlet receives GASEOUS REFRIGERANT(Refrigerant now hot and under pressure) & Pumps it into the condenser coils. 2. In the condenser coils refrigerant is now liquid. And heat starts to leave (Gas gives off heat when changed from gas to liquid). This giving off of heat is expedited by a fan or blower at the condenser coils. 3. The refrigerant goes through a metering device like an orifice and becomes low pressure again as it enters the evaporator. 4. At the evaporator coils, another state change happens to the refrigerant, going from liquid back to gas (liquid absorbs heat when it changes from liquid to gas). The gas refrigerant is whats absorbing the heat in your home and condenser expels it outside. Your AC does not create cold air, its basically a system that transports heat. 5. The gaseous refrigerant then enters the compressor again where it starts the cycle all over, constantly just removing heat energy from your home. WOW, HVAC School is paying off so far. This stumped me before. Cant wait to graduate and get out there in the field. 40K in student loan debt from college, didt even graduate, now I'm going to trade school to learn skill to make some good money. I shoulda done this straight out of high school. Oh well.

[seanlowwei]

Much Appreciated. It actually makes so much sense how everything comes together. Wonderful piece of engineering!

[numspacsym]

Brilliantly explained and animated! Thank you for making and sharing this.

[Nick-VSL]

Congratulations. You did an amazing job. I was looking for a video like this for years but none could help me as much as this. Keep up the good work

[toddtucker]

Impressive as always! I always learn something new from your videos, even after watching 2 or 3 times. Thank you for the hard work! It really makes a difference for people who are trying to learn. Keep it up!

[geraldlarson]

Saw this mid-study for my thermodynamics exam, this is definitely a helpful example of the 4 phase energy-transfer diagram and pV diagram.