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How does a cars Air Conditioning system work?

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  • čas přidán 27. 02. 2017
  • Hey, In this animation I explain the basics of how a vehicles AC system works. I make reference to the pressure inside the system which is really important for the system to work correctly.
    On average you should have approximately 1.2 - 2bar (17 - 29 PSI) on the low pressure side and approximately 10 -15bar (145 - 217 PSI) on the high pressure side. This is with the system running.
    On a static system (off) you should measure approximately 5bar (72 PSI) of pressure on both the high and low pressure side.
    In natural form the AC gas R134a is a gas and has a boiling point of - 26.5oC at atmospheric pressure.
    A high pressure is used to change the state of the gas into a liquid. This is because a substance absorbs heat when its converted from a gas to a liquid.
    The refrigerant circulates in the closed circuit, continually alternating changing from a liquid to a gas and vice versa. The refrigerant is:
    Compressed in the gaseous state,
    Condensed through heat dissipation and
    Evaporated through pressure reduction and heat absorption.
    Cool air is not produced, heat is extracted from the air flow in the vehicle.
    All vehicle AC systems will lose some gas over a period of time and its recommended to have the system serviced regularly. I would recommend every 2-3 years.
    I hope you enjoy this explanation and if you have a question please ask.
    #Airconditioning
    #AC
    #HVAC
    #engine
    #howitworks
    #GarageTech
    #cars
    #Animation

Komentáře • 463

  • @kennethjones2849
    @kennethjones2849 Před 4 lety +128

    I watched about 5 videos on AC --even one from a professional institution--yours is the best so far--thanks.

  • @hectorheath9742
    @hectorheath9742 Před 4 lety +21

    Good to see some actual temp and gas figures. Greatly helps in understanding. Thanks.

  • @subhamoybanerjee3172
    @subhamoybanerjee3172 Před 7 lety +193

    good show, specifically because it is animated keeping all the parts in exact position of a car. that makes this video different from others. keep it up.

    • @mariosugay5618
      @mariosugay5618 Před 5 lety

      what happened to the dryer after the refrigerant passes through the condenser?

  • @Silkroads733
    @Silkroads733 Před 2 lety +2

    Great I’m a qualified mechanical engineer and auto electrical technician, and I never really knew about to much about a/c units until watching this video thanks, I’m more old scool..from the points ignition and carburettors ect ect..from the 70s..

  • @miguelito9va
    @miguelito9va Před 6 lety +7

    Great video. Congratulations!!! I work in automotive industry and I have to thank you for sharing your acknowledge with us.

  • @dr.yahyaelewa1628
    @dr.yahyaelewa1628 Před 4 lety +2

    Hats lift up Professor. I love your dialect and the way you teach.
    You are kindly asked to hold a seminar for teachers to teach them how to teach.
    If it's in my hands, I honor you an OSCAR.
    Hopefully, your Excellency would accept my kind and deep regards.
    Once again, thank you so, so much.
    Your proud student.

  • @vladdunareanu8500
    @vladdunareanu8500 Před 5 lety +13

    I was curious how A/C works and I found this explanation exactly on my car :)

  • @raquelojeda8311
    @raquelojeda8311 Před 3 lety +2

    Really good video. I have always had a lot of trouble understanding the theory behind it so actually seeing the flow really helped. Thanks a lot 👍

  • @ChristianEssentials101
    @ChristianEssentials101 Před měsícem +1

    Great explanation and animation.

  • @DannyOh1984
    @DannyOh1984 Před 2 lety +1

    Perfectly explained. From the animations to explanations. Thank you very much! Cheers from USA

  • @tylerharper9376
    @tylerharper9376 Před 6 lety

    Thanks for the video! Really comprehensive.

  • @coppertechnologies5051
    @coppertechnologies5051 Před 4 lety +1

    Your presentation is highly appreciated... Thanks for the work

  • @seinlanda5492
    @seinlanda5492 Před 8 měsíci

    Without a doubt THE BEST video about this so far, others talk a lot about details in the compressor and shit but they haven't even explained how does the system works.

  • @joenaz4311
    @joenaz4311 Před 2 lety +1

    Fantastic video. Top tier visuals and thoroughly but succinctly explained!

  • @alizainsomani1127
    @alizainsomani1127 Před 3 lety +1

    Great video well explained and easy to understand with animations and placements of the AC components

  • @bridew
    @bridew Před 2 lety +1

    Wow, after many videos finally one that explains with the actual numbers... Thanks

  • @muneerlyati
    @muneerlyati Před 6 lety +1

    thanks so much, excellent explain and presentation

  • @joelsagayanatan2325
    @joelsagayanatan2325 Před 4 lety

    U made it to understand very easily , while comparing to other videos .. thanks 👏

  • @BillySBC
    @BillySBC Před 3 lety +1

    Very good video and explanation, as well as indicating the directional flow of the gas in the system. I am getting high pressure on the low side so I'm thinking it's probably the expansion valve now as this seems to be the place where the high pressure drops to lower pressure. Thanks again for posting this.

  • @MrMagsimus
    @MrMagsimus Před 4 lety

    Fantastic video to break a complicated process down into lay mans terms and deliver excellent commentary 👍🇬🇧👌👌

  • @dr.yahyaelewa1628
    @dr.yahyaelewa1628 Před 4 lety

    I love your dialect Sir.
    It reminds me with my lovely British Professor .. Blessings.
    Once again, thank you.
    Kind regards.

  • @desiefiautoelectrician7150

    I watch all your videos with pleasure and learn a lot. Thank you for sharing your experience with us.

  • @pgm7035
    @pgm7035 Před rokem +1

    Best a/c demo.

  • @user-kq6ky5tz7v
    @user-kq6ky5tz7v Před 5 lety +16

    the best "How does it work? " I've ever seen thumbs up

    • @aniketdeshmukh836
      @aniketdeshmukh836 Před 4 lety

      I have never seen such a big mistake in explanation. Gaseous refrigerant is entering the evaporator instead of liquid refrigerant.

    • @IronWarrior95
      @IronWarrior95 Před 3 lety

      @@aniketdeshmukh836 he said gas enters the evaporator, not liquid.
      But as I read, his mistake is, that it actually is liquid when it enters the evaporator and cools the air down. A liquid cooling air down sounds more effective than a gas cooling air down. And then on its way back when it gets warmer it gets into gas again. I'm actually not sure about it right now.

  • @marvinfollero846
    @marvinfollero846 Před 3 lety

    props to the animation. great work

  • @pufarinu
    @pufarinu Před 4 lety +1

    fascinating animation/explanation !

  • @theSilvioRoesler
    @theSilvioRoesler Před 2 lety +1

    Such great video, thanks for putting this together

  • @prak44
    @prak44 Před rokem +1

    Very good explanation.

  • @solidworksegscorporatetrai3983

    Great Video of Technically Published about an inside mechanism HVAC System of car. Very Useful...

  • @dr.yahyaelewa1628
    @dr.yahyaelewa1628 Před 4 lety

    Hats lift up from America to you Sir.
    Thank you so, so much.
    Kind regards Sir.🎓

  • @junkitlow
    @junkitlow Před 4 lety +2

    Very detail explains, great knowledge

  • @malikmalik0216
    @malikmalik0216 Před 4 lety

    Thanks dude 🐸 for the quick knowledge

  • @Adikxx
    @Adikxx Před 4 lety

    fantastic vid, really well explained

  • @gantasaala23
    @gantasaala23 Před 5 lety

    Thank you sir
    u briefed clearly how the car ac works

  • @msa0435
    @msa0435 Před 6 lety

    Very nicely explained.Great job.

  • @abdulsamad-oz4lw
    @abdulsamad-oz4lw Před 6 lety

    Good illustration how it work. Now i can clean my coil with coil cleaner with confident.

  • @mkumar9613
    @mkumar9613 Před 3 lety +1

    good explanation man.. keep doing more work like this!!! Great job

  • @majidm6007
    @majidm6007 Před 4 lety

    Fantastic explanation, thank you.

  • @godwin7733
    @godwin7733 Před 3 lety +1

    I was watch so many videos but i can't understand anything about Ac working. But your video was awesome . Very knowledgeable animatic explanation. Very Good 😍😘

  • @joepapa52
    @joepapa52 Před 3 lety +1

    Very good info, thanks and keep it up

  • @naderachkar1231
    @naderachkar1231 Před 6 lety +1

    amazing video ....thank you

  • @relaxationclub3848
    @relaxationclub3848 Před 2 lety +1

    Very straightforward explanation. I feel intelligent now 😅

  • @anasrauf5854
    @anasrauf5854 Před 8 měsíci

    What a video … simply marvelous expalanation❤

  • @garirclinic2020
    @garirclinic2020 Před 3 lety +1

    The best video on ac ever in my opinion ....thnx

  • @normalkullanc1993
    @normalkullanc1993 Před 5 lety +1

    Nice and clean thank you

  • @mrddurian3453
    @mrddurian3453 Před 2 lety +1

    Thank you for the great video, it helped me a lot. 👍

  • @allseasonadventures5124

    Awesome job man, thanks

  • @MrPandoratomorrow
    @MrPandoratomorrow Před 6 lety

    Great video need more like this

  • @ign4304
    @ign4304 Před 6 lety

    One of best video ,understood at once .tks

  • @devanandkunduru4560
    @devanandkunduru4560 Před 3 lety

    That's awesome explanation

  • @Imjeevabharathi
    @Imjeevabharathi Před 2 lety

    Extraordinary bro

  • @AndyShrimpton-GaaTech
    @AndyShrimpton-GaaTech Před 3 lety

    Thanks for the video

  • @mechanicalengineeringpract140

    Good explained

  • @zulkiflyhjali5142
    @zulkiflyhjali5142 Před 3 lety

    This is very good tutorial... Thanks👍👍

  • @hakeemzahardi9207
    @hakeemzahardi9207 Před 3 lety +1

    well explained!

  • @tozguitar
    @tozguitar Před 4 lety

    brilliant explanation

  • @niallenglish3777
    @niallenglish3777 Před 2 lety +1

    Nice 1. Told me exactly wha I wanted t know, and jus had t watch 1 time. Good on ya

  • @OfficialDjSideAffex
    @OfficialDjSideAffex Před 3 lety +1

    Great video

  • @jasonalcide8478
    @jasonalcide8478 Před 7 lety

    this is the first time im really understanding wats it all about ....tanx

  • @ChadTvFun
    @ChadTvFun Před 4 lety

    Very good video, very educative.

  • @ManojKumar-hz1vx
    @ManojKumar-hz1vx Před 5 lety

    Good review

  • @chiragdoshi762
    @chiragdoshi762 Před 6 lety

    good animation ac system works

  • @prashantjagtap_17
    @prashantjagtap_17 Před 2 lety +1

    I learnt it was way back in 2014-15(engineering days)....But that time I was confused regarding this topic, finally I got the solution... The way u r explaining pressure & temp. at perticular point is just clear all the daught. Thanks

    • @NishitShukla
      @NishitShukla Před 2 lety

      All Indian engineers are like you, they pass exams without understanding much, the system is such.

    • @prashantjagtap_17
      @prashantjagtap_17 Před 2 lety

      @@NishitShukla Right. They only focus on how to get numbers.

    • @NishitShukla
      @NishitShukla Před 2 lety

      @@prashantjagtap_17 My father was B Tech Mechanical, he retired as Chief Engg, Damodar Valley Corp, ran a 780 MW plant, but I don't think he knew how the thermal power plant ran. 😁😄.
      I am into Economics, even I don't understand how the economy works😁😄

    • @prashantjagtap_17
      @prashantjagtap_17 Před 2 lety

      @@NishitShukla 😀 Ok. This month I got selected in Johnson control as a design engineer, and the main product of company is HVAC, so I suppose to know all things about that so try to learnt this after selection 😅😜

    • @NishitShukla
      @NishitShukla Před 2 lety

      @@prashantjagtap_17 Good luck man😁😄. I am confident that you will never be the one to invent fb, twitter, google or for that matter anything that can be called invention.
      The last major invention from India was lavan bhaskar churna.

  • @MrXxxvincentxxx
    @MrXxxvincentxxx Před 6 lety

    good explanation give you liked !

  • @lynbooth1431
    @lynbooth1431 Před 6 lety

    Thank you, Thank you, Thank you.......It all makes sense now.

  • @e90vi
    @e90vi Před 5 lety +1

    great video!!

  • @supdream8979
    @supdream8979 Před 2 lety +1

    A little technical but I got it how it works great explanation 😃

  • @rizwanbarakba5181
    @rizwanbarakba5181 Před 6 lety

    Good job friend you explain nice and I hope everyone will understand because this way you were told and the video clear and it’s educate easily

  • @rogerhamberg1266
    @rogerhamberg1266 Před 3 lety +1

    Thankyou for busting my hearing after the end of actual video.

  • @kensonmalupande2424
    @kensonmalupande2424 Před 10 měsíci +1

    Well explained

  • @csb8930
    @csb8930 Před 6 lety

    Good explanation

  • @drona311
    @drona311 Před 6 lety

    great help...thanks mate!

    • @juniarmaramara1193
      @juniarmaramara1193 Před 2 lety

      Good video my brother thanks for explaining. What cause my car to cool on highside from receive dryer to expansion valve. Can you explain to me brother.

  • @akstarkids
    @akstarkids Před 2 lety +1

    Good information 👍

  • @samforcez
    @samforcez Před 3 lety +1

    This video is great!

  • @nosajonardep9068
    @nosajonardep9068 Před 6 lety

    Fantastic.

  • @vin605
    @vin605 Před 3 lety

    Very informative thanks

  • @jrno93
    @jrno93 Před 4 lety

    Amazing engineering

  • @sayedabdullah5154
    @sayedabdullah5154 Před 6 lety

    Thanks alot simple and easy

  • @akupehsluarketatAR
    @akupehsluarketatAR Před 6 lety +206

    meanwhile in mother russia, the weather cools the a/c system

    • @teravolt6113
      @teravolt6113 Před 5 lety +9

      I wonder how many people in cold weather countries such as Russia (or Canada, Sweden, Finland...) get seized compressors for not being able to run AC for long long times...

    • @anonymousfuck9320
      @anonymousfuck9320 Před 4 lety +1

      TeraVolt Not all cars automatically turns of the ac so in some you can have the ac on

    • @infinitewisdom4557
      @infinitewisdom4557 Před 3 lety

      Yep, conventional A/C, in reverse!

    • @domisualk6122
      @domisualk6122 Před 2 lety

      And the Motor warms the Person... the co2 warms russia so everything OK.

    • @LuciferMorningstar-ix3lb
      @LuciferMorningstar-ix3lb Před 2 lety +1

      @@teravolt6113 they turn on the heater

  • @pkasb90
    @pkasb90 Před 5 lety

    Wow GarageTech what a superb video.

  • @NASER725
    @NASER725 Před 7 lety +1

    Thank you so much

  • @venkatakrishnakishorepasum6324

    Good explanation..

  • @aimsats8292
    @aimsats8292 Před 6 lety

    well explained

  • @sagarpn3162
    @sagarpn3162 Před 6 lety

    Very good.

  • @bunnatang
    @bunnatang Před 6 lety +131

    your voice is too low. but music is like a thunder.

    • @hegotaspare
      @hegotaspare Před 5 lety +13

      Yeah don't forget to turn the volume down after he's finished or you/I will jump.

    • @CL0WN
      @CL0WN Před 3 lety +1

      @@hegotaspare I was prepared and still jumped wtf us that sound design .

    • @NAaPALM51
      @NAaPALM51 Před 3 lety

      The guy: I’ll put music at the end 🥁🎸😋
      Me now: 🧏🏽‍♂️

  • @paris.v7137
    @paris.v7137 Před 2 lety +1

    wow amazing video ❤️

  • @cagmito76
    @cagmito76 Před 3 lety

    excellent subscribed

  • @hoatruong6691
    @hoatruong6691 Před 2 lety +1

    Super easy to understand. Thank you a lotttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttt

  • @CASP_ian
    @CASP_ian Před 2 měsíci +1

    One small correction: Dryer is used to remove any unwanted water (or water vapour) and also acts a filter. Water vapour is really bad as it freeze in expansion valve causing starvation.

  • @Reddylion
    @Reddylion Před 7 lety

    nice video

  • @denishar4609
    @denishar4609 Před 5 lety

    Good video

  • @vijaypm9732
    @vijaypm9732 Před 6 měsíci

    Thank you very much!

  • @mohammadmaviyaansari7525

    Good video thanx

  • @likithdeekonda8209
    @likithdeekonda8209 Před 5 lety

    superb sir

  • @CHIBA280CRV
    @CHIBA280CRV Před 5 lety

    That is a Fantastic and simple explanation of how the refrigerant works in a compressed state.. what I can't seem to find is a video explaining how the electronics side of the system works ? Like what happens when you push the a/ c button on the dash ? Sends a signal to what and what pressure sensor those and fan clutch closes etc. ... Which intern leads to the video you just presented.. thanks I hope you have a video on it , and if not would you make one ? It's good to understand how the whole A/C system works. I need to know in order to try and repair my 2007 Honda CR-V a/c system .. I need to understand how it works from when you push the button.. Sorry for the long comment. Thanks again.

  • @hyderalitaj1
    @hyderalitaj1 Před 6 lety +1

    could you please upload a video about the electrical side of ac system?compressor engagement ac fan working,about the pressure switch circuits.ac switch.like those. thank you.

  • @jitender247
    @jitender247 Před 5 lety +1

    Detailed explanation about the gas pressure and temperature at various points , thank you very much for that dear friend

  • @omaradan8062
    @omaradan8062 Před 6 lety

    Thanks that's great observed video channel

  • @hamedal_obaidli5532
    @hamedal_obaidli5532 Před 5 lety +1

    Hi Mr. , can I know lowering the Glass wail ac is on will effect the ac?

  • @swapnilbandgar8730
    @swapnilbandgar8730 Před 4 lety +1

    is there any arrangement to keep compressor speed constant or is it directly driven by engine and its speed varies in proportion to engine speed?