This is way better than any other tutorial I saw on RUclips. Because you actually explained what everything does instead of tossing a bunch of random names around and providing no explanation like literally every other vid on RUclips from crappy teachers. Mechanics are just terrible teachers 😂
Very well explained and easy to understand with the animation. One of the questions I have is how much pressure does compressor have to increase so that refrigerant temperature will be higher than ambient air temperature. Is the compressor equipped with some type regulator that measures outside temperature and compresses the refrigerant so that the temperature is higher than outside air temperature.
Actually the explanation is still incomplete as your question proves it needs to be equipped with some thing which can measure heat temp and that is Thermostat which is important to power on/off to compressor to work as per our Room temperature🌡️for a certain cooling effect set in Thermostat I think.
Expansion of liquid in remote bulb and power element keeps thermostatic expansion valve balanced to maintain flow.het asbsubering sysom exp..ls in ..out..rmote bulb out let..37psi 50°f.rmote bulb 46.7psi 50°fcondeshion areav 37psi .40°f.condesar medals area 37°f40°FINternal euualizercondsar up eexpasuon under diaphrom 37psi expashion top line out line power elment ...expashion spring 9.7psi inlet out mto matic expansion valve with a temperature senstive elemnent also called p""power element replacing the adjustingvvsrew and spring ...
thank you ..this is a great tutorial , rather than the others i have watched that dont explain how the compressor works, or why the flans are blowing and what they are blowing for and the main key is the first law of thermodynamics that all ac is based around...that heat flows from hot to cold... if you ever want to improve..the thing that was missing was 1. how does the expansion valve work actually (by what mechanism) 2. the evaportator in the room ....when you go near one they seem to be blowing cold air...but your explanation seems to say they suck in hot air ..(so how come they actually blow cold air) 3 more talk about the air in the room and hte importance of the room being closed or the aircon will be trying to cool down the planet. 4. how the condensor coils actually change the state of the freon from gas to liquid.....i think you said the temperature doesnt change but i think it actually does. the outside environment cools the gas and then it changes to liquid ....by cooling it. 5 more abuot how the changing of state of something from gas to liquid or liquid to gas produces energy
So this is a little simplified. The first place to get an understanding of what is going on is to understand heat energy. Heat energy is measured in temperature, which is a measure of how heat energy affects the molecules of a substance. Quantities of heat energy are measured by measuring how much heat energy is required to raise the temperature of a certain amount of a substance. For example, a BTU is the amount of heat energy required to raise one pound of water one degree in temperature. (I'm American so you're stuck with imperial.) Now we come to the property in the natural world that is exploited to give us the refrigeration cycle that makes air conditioners and refrigerators work, (which both work basically the same, an air conditioner is just something that makes your house a big refrigerator). So if you start with a pound of ice, it takes one BTU to heat it one degree. So for example one BTU to heat it from 31 degrees to 32 degrees. But when you get to the first change in the state of matter, it takes 144 BTUs to change it from a pound of 32-degree (Fahrenheit) ice to 32-degree water. And then you're back to one BTU to heat it from 32 degree water to 33 degree water and so on, all the way until you get to the boiling/condensing point. It's one BTU to heat the pound of water from 211 degrees to 212 degrees. And then it takes 970 BTUs to heat the pound of water from 212 degree (Fahrenheit) water to 212 degree steam (or "vapor"). This is a quality that works against us when we're trying to boil a pot of water and the heat source is a stove you have to power. But it's a quality that works for us when the heat boiling your liquid, (i.e. the refrigerant in the evaporator coil), is the heat in the air of your house, and you want the refrigerant vapor to carry large amounts of heat energy with it outside your home.) (Different refrigerants of course involve different BTU numbers than water, but the principle is the same.) As many of you know the boiling/condensing point of a liquid increases or decreases commensurate with pressure. (A pot of water boils at a lower temperature at a high altitude, i.e. under less atmospheric pressure, than at sea level.) The compressor raises pressure so that the temperature of the boiling/condensing point is higher than that of the air outside, (say a pressure that makes the boiling/condensing point 120 degrees Fahrenheit so that passing 90 degree air outside over the condenser coil will cause the vapor to condense into liquid). On the low pressure side of the system, (where the liquid enters the evaporator coil), the pressure is set so that the liquid will evaporate at a little above freezing. (While you might have a refrigerant that boils at 45 degrees (Fahrenheit) below zero, you have to set it to the boiling/condensing point above the freezing temperature of water or the humidity in the air will cause ice on the evaporator coil.) So you have a system set a two pressures, designed to set two certain boiling/condensing temperatures of the refrigerant. So you have the air in your house being passed over the evaporator coil (made of a conductive metal) so the heat in the air will pass into the refrigerant in the coil and cause it to boil. The heat energy is carried outside with the vapor in your vapor line (the bigger one of your two copper lines) where it is pressurized so that it condenses outside, releasing the heat from inside your home outside. (This is why when your air conditioner is working properly and you hold your hand above the fan of your outside condenser unit, you the air blown by the fan feels warm. That's the heat from inside your house.) Then the condensed refrigerant goes inside your house in the liquid line (the smaller of the two copper lines) where it is boiled again in the evaporator coil, and the cycle continues. And don't forget to occasionally pour some bleach down that white PVC line that comes from your air handler and goes outside. That's the line that carries the water from the air inside your house that condenses on the evaporator coil outside. Have a nice day.
Question: At compressor startup, does the A coil (inside furnace) make some noise getting up to operating pressure? It lasts for about 15 seconds? Then noise stops. At end of cooling cycle the same thing happens. During the cycle no noise at all, other than normal blower sounds. AC runs great, very cold.
This would not actually be called a furnace but a evaporator coil. What you are hearing is the compressor ramping up pressure. Once the pressure is obtained it does not take as much energy to maintain that pressure so you want hear it as much,
I thought, in an expansion system, the freon exits the condenser in liquid, enters the dryer, where moisture is removed from the freon, then traveled to the txv valve?
Some things are not explained here. HOW does the expansion valve allow the high temp liquid into low pressure cooled liquid. I presume because it has a small dia. in and a larger dia. pipe out, but this is not said. Also, does it matter if the vapor travels UP the condenser rad whilst turning into liquid? Would gravity not make it want to fall back down? All other animated diagrams I have found show it going down, and that would seem to make more sense. Also, where is your drier?
I have seen videos on ship refrigeration... and comes to an understanding that... 1. Piping before entering compressor consisted of freon gasses. Then it enters the compressor tube, where gasses are returned to its liquid state. 2. When the compressor keeps turning... then the liquid state of the freon... prior to entering the expansion valve, it again turns into gasses, then into the evaporator in the form of gasses... The cycle repeats itself once these gasses reenter the condenser / receiver tube. Did i understand them incorrectly?...
Long story short, it's not worth trying. Short story long, An automotive ac compressor runs off of your engine,whereas a home ac compressor runs off of an electric motor. You would have to find a way to hook up the ac compressor from the "home ac" To where it can be powered off of your cars surpentine belt, Then you've got other issues because automotive ac has cutoff switched that turn a clutch that is actuated by an electromagnet . The "home ac" is simply powered by an electric motor that simply cuts off. Ac in a car is a lott different than ac in a house, They even take different refrigerant. Speaking of which, you would also have to find a way to attach your refrigerant lines to the "home ac" compressor. And im sure im missing a few steps to the process. But it's going to be a lot more work than its worth Nothing is impossible, But this would be more expansive than its worth. Hope this helps.😊
@@kristopherhasenbuhler5393 thank you sir, i was just wondering, because some cars now runs an electric compressor. home AC compressor can be run via inverter i think.
In India we have split AC and window AC in residential Buildings in India, I just want to know how the Exchange of Oxygen takes place from outside home to inside the house, since the door and windows are closed of a particular home, and no other ventilation system is there at home
Dispensing of cold or hot air happens as per the 2nd law of Thermodynamics, which states that Heat flows naturally from an object at Higher Temperature to an object at Lower Temperature. The "Compressor" makes sure that refrigerant fluid flowing to "Condenser" is at a temperature Higher than the outside temperature, which ensures flow of Heat from Condenser to outside temperature as per 2nd law of Thermodynamics, added with a fan which aids in blowing out the Heat from Condenser. The "Expansion Valve" makes sure that refrigerant fluid flowing to "Evaporator" is at a temperature Lower than the inside room temperature, which ensures flow of Heat from inside room to the refrigerant fluid in the Evaporator as per 2nd law of Thermodynamics, added with a fan which aids in blowing in the cool air from Evaporator to room.
This is much better explanation than the other much viewed videos
🔥 This is explained as simple as possible than what I learn in Engineering thermodynamics... great work...
WOW! I went from knowing nothing about AC units to feeling like I’m a pro. Thank you, it was very we’ll explained.
You are now also know how Refrigerator works
Easier to understand compared to other tutorials of the same topic. Good job.
All tutorials are clearly explained .thank you so much .please continue!!!
Nicely explained coming from an electrical engineering mind trying to learn heat tranfer.
Thank you for the clear explanation.
The best video on this topic on RUclips.
the temp out of the condenser is a bit lower as some heat goes out to the env. . Very well explained good job
Now i know, thank you so much for the lecture, it helps me a lot to know the basic functions of an AC.
Your explanation was excellent but my brain still confused as to how air conditioners work.
Wonderful exposition of A. C. Mechanism.
Very clear english and excellent explanation .thanks madom.
Much easier explained than I thought...big up
It's really ...well for people.
May we get a video about for all of refrigerant ?
This is way better than any other tutorial I saw on RUclips. Because you actually explained what everything does instead of tossing a bunch of random names around and providing no explanation like literally every other vid on RUclips from crappy teachers. Mechanics are just terrible teachers 😂
Super and most easy explanation in the world.
Best explanation ever
Woww mam I am from Pakistan and I have a promotion test thanks to u for explaining ac as my desire with easy words
Very well done, easy to understand just the basic principles .. impressed !
Very well explained and easy to understand with the animation.
One of the questions I have is how much pressure does compressor have to increase so that refrigerant temperature will be higher than ambient air temperature. Is the compressor equipped with some type regulator that measures outside temperature and compresses the refrigerant so that the temperature is higher than outside air temperature.
Actually the explanation is still incomplete as your question proves it needs to be equipped with some thing which can measure heat temp and that is Thermostat which is important to power on/off to compressor to work as per our Room temperature🌡️for a certain cooling effect set in Thermostat I think.
@@irshadahmedsyed HVAC systems will typically have one or more interior air temperature sensors and an ambient (outside) air temperature sensor.
Expansion of liquid in remote bulb and power element keeps thermostatic expansion valve balanced to maintain flow.het asbsubering sysom exp..ls in ..out..rmote bulb out let..37psi 50°f.rmote bulb 46.7psi 50°fcondeshion areav 37psi .40°f.condesar medals area 37°f40°FINternal euualizercondsar up eexpasuon under diaphrom 37psi expashion top line out line power elment ...expashion spring 9.7psi inlet out mto matic expansion valve with a temperature senstive elemnent also called p""power element replacing the adjustingvvsrew and spring ...
Nicely explained, thanku so much
Good video good presentation god bless you thanks maam
I have found ur lecture so intrsting and clear
thank you ..this is a great tutorial , rather than the others i have watched that dont explain how the compressor works, or why the flans are blowing and what they are blowing for and the main key is the first law of thermodynamics that all ac is based around...that heat flows from hot to cold...
if you ever want to improve..the thing that was missing was
1. how does the expansion valve work actually (by what mechanism)
2. the evaportator in the room ....when you go near one they seem to be blowing cold air...but your explanation seems to say they suck in hot air ..(so how come they actually blow cold air)
3 more talk about the air in the room and hte importance of the room being closed or the aircon will be trying to cool down the planet.
4. how the condensor coils actually change the state of the freon from gas to liquid.....i think you said the temperature doesnt change but i think it actually does.
the outside environment cools the gas and then it changes to liquid ....by cooling it.
5 more abuot how the changing of state of something from gas to liquid or liquid to gas produces energy
helpful and useful comments! thanks
Very helpful... thanks for making such videoes🔥❤️
Very helpfull video for me 🙏🏻🙏🏻🙏🏻 and everyone
Very clear explanation. Thank you.
Thank you much for understanding me .
Explained really well through graphics & Animation but what about the drain pipe?
Very informative! God bless 🙏🏼
Thank u ma'am
no, thank YOU! :) that was a great explanation :)
Thank You it was very Helpful
Dear sister it's a nice video to understand about AC thank you.
Wonderful explaination very helpful to exams
As an HVAC Tech, this is everything and nothing at the same time
So this is a little simplified. The first place to get an understanding of what is going on is to understand heat energy. Heat energy is measured in temperature, which is a measure of how heat energy affects the molecules of a substance. Quantities of heat energy are measured by measuring how much heat energy is required to raise the temperature of a certain amount of a substance. For example, a BTU is the amount of heat energy required to raise one pound of water one degree in temperature. (I'm American so you're stuck with imperial.)
Now we come to the property in the natural world that is exploited to give us the refrigeration cycle that makes air conditioners and refrigerators work, (which both work basically the same, an air conditioner is just something that makes your house a big refrigerator).
So if you start with a pound of ice, it takes one BTU to heat it one degree. So for example one BTU to heat it from 31 degrees to 32 degrees. But when you get to the first change in the state of matter, it takes 144 BTUs to change it from a pound of 32-degree (Fahrenheit) ice to 32-degree water. And then you're back to one BTU to heat it from 32 degree water to 33 degree water and so on, all the way until you get to the boiling/condensing point. It's one BTU to heat the pound of water from 211 degrees to 212 degrees. And then it takes 970 BTUs to heat the pound of water from 212 degree (Fahrenheit) water to 212 degree steam (or "vapor"). This is a quality that works against us when we're trying to boil a pot of water and the heat source is a stove you have to power.
But it's a quality that works for us when the heat boiling your liquid, (i.e. the refrigerant in the evaporator coil), is the heat in the air of your house, and you want the refrigerant vapor to carry large amounts of heat energy with it outside your home.) (Different refrigerants of course involve different BTU numbers than water, but the principle is the same.)
As many of you know the boiling/condensing point of a liquid increases or decreases commensurate with pressure. (A pot of water boils at a lower temperature at a high altitude, i.e. under less atmospheric pressure, than at sea level.)
The compressor raises pressure so that the temperature of the boiling/condensing point is higher than that of the air outside, (say a pressure that makes the boiling/condensing point 120 degrees Fahrenheit so that passing 90 degree air outside over the condenser coil will cause the vapor to condense into liquid).
On the low pressure side of the system, (where the liquid enters the evaporator coil), the pressure is set so that the liquid will evaporate at a little above freezing. (While you might have a refrigerant that boils at 45 degrees (Fahrenheit) below zero, you have to set it to the boiling/condensing point above the freezing temperature of water or the humidity in the air will cause ice on the evaporator coil.)
So you have a system set a two pressures, designed to set two certain boiling/condensing temperatures of the refrigerant. So you have the air in your house being passed over the evaporator coil (made of a conductive metal) so the heat in the air will pass into the refrigerant in the coil and cause it to boil. The heat energy is carried outside with the vapor in your vapor line (the bigger one of your two copper lines) where it is pressurized so that it condenses outside, releasing the heat from inside your home outside. (This is why when your air conditioner is working properly and you hold your hand above the fan of your outside condenser unit, you the air blown by the fan feels warm. That's the heat from inside your house.) Then the condensed refrigerant goes inside your house in the liquid line (the smaller of the two copper lines) where it is boiled again in the evaporator coil, and the cycle continues.
And don't forget to occasionally pour some bleach down that white PVC line that comes from your air handler and goes outside. That's the line that carries the water from the air inside your house that condenses on the evaporator coil outside.
Have a nice day.
Best Explanation
Good, very useful video you present.
A very fine explanation , I like it
It's said ,apart from chilling,mixing process is there,which is also vital.
Question: At compressor startup, does the A coil (inside furnace) make some noise getting up to operating pressure? It lasts for about 15 seconds? Then noise stops. At end of cooling cycle the same thing happens. During the cycle no noise at all, other than normal blower sounds. AC runs great, very cold.
This would not actually be called a furnace but a evaporator coil. What you are hearing is the compressor ramping up pressure. Once the pressure is obtained it does not take as much energy to maintain that pressure so you want hear it as much,
Wow! Excellently explained thanks
Thank you!!
Thank you👏👏
Thanks a lot
Helpful video thanks.
Thank you for sharing god.bless
tHank you
Very nice 👍👍 Thank you very much 🙏🙏
Very nice video 📹 🥰
Great information , many thanks!😮
Great explanation
Tnks for this topic explain
Helpful 👍
Loved the explaination🔥
thank you so much mam its a really helpful info
Love frm india
Very helpful
Very nice expression
Thanks for sharing ,,,,, I have learnt alot
Nice explanation
Very nice! I like it!
Thanks you
Good work
such a clear cut explanation..thanks a lot
And thank you for making this video.
very nice
Thank you so much mam
Very informative, lots of love.
I thought, in an expansion system, the freon exits the condenser in liquid, enters the dryer, where moisture is removed from the freon, then traveled to the txv valve?
Super
Thanks
Very well explained, thank you
easy to understand
very helpful
מאוד מועיל
Thanks mam
Thank You
Humidity is ALWAYS absorbed by grumpiness...
The 27 th law of thermodynamics
W-e-l-l d-o-n-e !
Some things are not explained here. HOW does the expansion valve allow the high temp liquid into low pressure cooled liquid. I presume because it has a small dia. in and a larger dia. pipe out, but this is not said. Also, does it matter if the vapor travels UP the condenser rad whilst turning into liquid? Would gravity not make it want to fall back down? All other animated diagrams I have found show it going down, and that would seem to make more sense. Also, where is your drier?
Thanks 🙏🏻
thank u
How the liquid state of freon is converted into gaseous State inside the evaporator coil
Because the hot air coming into the evaporator area from the house is heating up the Freon in the pipes causing it to evaporate back into a gas
Cold freon absorbs the heat to change state to turn to Vapour just like if you heat water to make vapor
This is the freon property
I have seen videos on ship refrigeration... and comes to an understanding that...
1. Piping before entering compressor consisted of freon gasses. Then it enters the compressor tube, where gasses are returned to its liquid state.
2. When the compressor keeps turning... then the liquid state of the freon... prior to entering the expansion valve, it again turns into gasses, then into the evaporator in the form of gasses...
The cycle repeats itself once these gasses reenter the condenser / receiver tube.
Did i understand them incorrectly?...
quick question sir, can a home ac compressor be use on car AC system?
Long story short, it's not worth trying.
Short story long,
An automotive ac compressor runs off of your engine,whereas a home ac compressor runs off of an electric motor.
You would have to find a way to hook up the ac compressor from the "home ac"
To where it can be powered off of your cars surpentine belt,
Then you've got other issues because automotive ac has cutoff switched that turn a clutch that is actuated by an electromagnet .
The "home ac" is simply powered by an electric motor that simply cuts off.
Ac in a car is a lott different than ac in a house,
They even take different refrigerant.
Speaking of which, you would also have to find a way to attach your refrigerant lines to the "home ac" compressor.
And im sure im missing a few steps to the process.
But it's going to be a lot more work than its worth
Nothing is impossible,
But this would be more expansive than its worth.
Hope this helps.😊
@@kristopherhasenbuhler5393 thank you sir, i was just wondering, because some cars now runs an electric compressor. home AC compressor can be run via inverter i think.
Nice explanation but fast.
Explained really well
I am Mechanical Engineer ❤️❤️
In India we have split AC and window AC in residential Buildings in India, I just want to know how the Exchange of Oxygen takes place from outside home to inside the house, since the door and windows are closed of a particular home, and no other ventilation system is there at home
Nice
Very interesting!!!!!!
Very well explained
Good
thank yoooou so much omg
cool
Nice 👍🏻
Great
Air conditioning system 1 compressor 2 conditioner 3 expansion valve 4 capillary 5 evaporatar
*2 Condenser
I have a question, how does it dispense the cold or hot air?
Dispensing of cold or hot air happens as per the 2nd law of Thermodynamics, which states that Heat flows naturally from an object at Higher Temperature to an object at Lower Temperature.
The "Compressor" makes sure that refrigerant fluid flowing to "Condenser" is at a temperature Higher than the outside temperature, which ensures flow of Heat from Condenser to outside temperature as per 2nd law of Thermodynamics, added with a fan which aids in blowing out the Heat from Condenser.
The "Expansion Valve" makes sure that refrigerant fluid flowing to "Evaporator" is at a temperature Lower than the inside room temperature, which ensures flow of Heat from inside room to the refrigerant fluid in the Evaporator as per 2nd law of Thermodynamics, added with a fan which aids in blowing in the cool air from Evaporator to room.
I thought there's a mistake..
Condensor dicrease the temperature bcz refrigerant changing the state from gaseous to liquid.
I agree that’s the only misleading information