How does a Refrigerator work?

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  • Опубліковано 24 гру 2024

КОМЕНТАРІ • 1,4 тис.

  • @SabinCivil
    @SabinCivil  7 років тому +500

    Hi, I hope you liked the video on modern refrigerators. Please visit www.patreon.com/LearnEngineering and support our educational service. Your support will enable us to release 2 videos/month.

    • @wobblysauce
      @wobblysauce 7 років тому +3

      Put a newer motor on an old broken fridge, and the power consumed dropped quite a bit.

    • @ronakshah13
      @ronakshah13 7 років тому +6

      Hi Guys, as always a big fan of you guys...
      Great video there.... lot more packed in 8 minutes...
      Just an humble suggestion, a small introduction of compression/expansion effect on temperature (blowing a baloon, or just simply blowing cold air through mouth) would have probably been a perfect start, i guess...
      Anyways, great effort guys.

    • @mech_rk
      @mech_rk 7 років тому +2

      how fins increase the rate of heat transfer?

    • @noorhaque1090
      @noorhaque1090 7 років тому +1

      Learn Engineering hey. Bro which software u use to make this type off demo?

    • @exmuslim3514
      @exmuslim3514 7 років тому +3

      which kind of liquid we are using as a refrigerant?

  • @Milkinporsche
    @Milkinporsche 7 років тому +1414

    The real learning channel, no bs music and introduction.

  • @anonymouscamel8031
    @anonymouscamel8031 4 роки тому +1633

    I couldn’t sleep because I NEEDED to know how a refrigerator works. Now that I have been enlightened with this knowledge I can finally go to sleep without worrying about anything

    • @petchlnwzaaa
      @petchlnwzaaa 4 роки тому +42

      Me too LMAO 😆

    • @verbed9053
      @verbed9053 3 роки тому +32

      LMAO SAME

    • @terryparker1633
      @terryparker1633 3 роки тому +27

      Of course if you weren't interested in the material, you were certainly free not to watch. For those seeking some knowledge in this area, very good video

    • @ZGlove.
      @ZGlove. 3 роки тому +18

      It's 5: 43 AM where I am, and I just had to know as well.

    • @roby_singh
      @roby_singh 3 роки тому +18

      I was about to sleep, but i decided to search how a refrigerator work. So here I am watching this video before sleeping (Life of an Engineer).

  • @flowersforferdinand375
    @flowersforferdinand375 2 роки тому +355

    If you're wondering WHY the pressure drops when it goes through throttling device, it is due to the Bernoulli effect.
    A key property of this effect is that as velocity increases, pressure actually decreases (contrary to common expectation).
    So, as the liquid flows from a large diameter into a smaller one, the flow velocity increases and thus the pressure decreases.

    • @ryangodlove3268
      @ryangodlove3268 2 роки тому +1

      Then how come on like your home air conditioning the high pressure liquid line is smaller than your low pressure evaporator tubes?

    • @gelomelo3426
      @gelomelo3426 2 роки тому +1

      When the liquid leaves throttle and liquid goes towar evaporator, it's (-20 Celsius), it absorbs heat, so the new temperature has to be increased, ( - 15), because it has absorbed heat, and when the liquid leaves the evaporator in gas phase, it is still (-15), and when you contact liquid phase line (-20 c) and gas phase line (-15 c), how evaporator out put line makes evaporator input line cooler, when is has much more temperature??

    • @johnroberts2104
      @johnroberts2104 2 роки тому +9

      @@gelomelo3426 Refrigerant in the evaporator does not experience a rise in temperature, only a phase change, which requires energy. That's why it's called the evaporator. The heat absorbed from the air inside the fridge drives a phase change and evaporates the remaining liquid portion of the refrigerant fluid.
      He says the temperature of the fluid in the capillary tube is brought down significantly because only the very end of the capillary tube has the same temperature as the fluid in the evaporator. At 5:10 you can see the temperature gradient along the capillary tube while it's coiled. That gradient still exists when it's straightened. So if you run the evaporator exit line along the capillary tube, they have the same temperature when they first meet near the evaporator. But as you go farther down, the temperature is higher in the capillary tube. So there is heat exchange between the two lines, and the effect is cooling the capillary tube.
      Top line is the capillary tube exiting the compressor, bottom line is the evaporator exit line
      [compressor] ------->(45*C, high pressure liquid)------->(somewhere in between)------->(-20*C, liquid and gas)--->[evaporator]

    • @bruhmndm3051
      @bruhmndm3051 2 роки тому

      Thanks! Now it makes a lotta sense

    • @gelomelo3426
      @gelomelo3426 2 роки тому

      @@johnroberts2104 thank you so much . I really appreciate you 🌹💚

  • @TheyWhomTheGodsDetest
    @TheyWhomTheGodsDetest 4 роки тому +36

    We own a 20 year old refrigerator with freezer and a 40 year old freezer. Both of which are either on or off and are very reliable. I like it when I purchase a product and it stands the test of time.

    • @hedmeddig
      @hedmeddig Рік тому +11

      That is also because back in the day they built things to last. Then they realised that they could make more money if they used cheaper materials. So production is now cheaper, and people buy more when their things break

    • @MAYONNAISEMOOSE
      @MAYONNAISEMOOSE Рік тому +3

      ​@@hedmeddigplanned obsolescense. I feel like is a necessary evil

    • @tommyhoward7341
      @tommyhoward7341 6 місяців тому +2

      @@MAYONNAISEMOOSE Yes and no because it promotes change which can be positive but it also creates more waste and costs more to the consumer.

  • @kevinlivingston9563
    @kevinlivingston9563 7 років тому +67

    It's really amazing how much impact refrigeration had on our progress as a society.

  • @eejakobowski282
    @eejakobowski282 6 років тому +213

    "This is the most basic refrigerator possible ever"
    lmao something about the way he says that cracks me up

    • @TheyWhomTheGodsDetest
      @TheyWhomTheGodsDetest 4 роки тому +10

      I got myself a cheap Chinese basic refrigerator off the net. It's been reliable so far, but it's starting to frost up.
      The narrator said what he said in that tone because he knows the nature of these machines and how that particular one is inferior.
      Dark Chocolate in moderation is good for your health.

    • @Chu3505
      @Chu3505 4 роки тому +4

      Now a days all refrigerators brands that are around $1000 or under are made in China or in some third world countries.$1000 and up refrigerators brands 90% are made in S. Korea and 10% made here in the United States but likely to be assemblies in Mexico.

    • @BMEPRAKULSHARMA
      @BMEPRAKULSHARMA 3 роки тому

      which software he uses to make these animations

  • @TheRadar758
    @TheRadar758 7 років тому +34

    Very insightful. I'm an electrician in the Navy and we occasionally work on refrigerators very similar to the one depicted. Thank you for the info.

  • @delberry8777
    @delberry8777 5 років тому +233

    "The throttling device is an obstruction to the flow, so a huge pressure drop occurs..." You should elaborate on this because 1. It is the essence of why it works. 2. The way you say it is counter intuitive. Why would liquid lose pressure when pushed through a smaller space?!
    The point here is that the same amount of liquid has to pass through a smaller diameter in the same time so the speed at which the liquid passes a given point is higher. According to Bernouilli's principle a fluid/gas that moves faster has lower pressure and vice versa. This is also what makes a plane fly.

    • @alep.1818
      @alep.1818 5 років тому +17

      Thank you!

    • @166senthil
      @166senthil 5 років тому

      watch link below:
      ua-cam.com/video/wzqTWv8zGlM/v-deo.html

    • @legendarynoob6732
      @legendarynoob6732 5 років тому +7

      Was looking for this!!!Thanks!!!

    • @magica3526
      @magica3526 5 років тому +11

      That's not how planes fly
      Otherwise planes with flat wings couldn't fly or planes couldn't fly upside down

    • @samovarmaker9673
      @samovarmaker9673 5 років тому +8

      @@magica3526 it's part of what makes planes fly. The other part is angle of attack.

  • @MdARahim
    @MdARahim 7 років тому +733

    Knowledge knowledge knowledge !!!

  • @mohamadhasanibrahim7234
    @mohamadhasanibrahim7234 2 роки тому +1

    so I have a report to submit in 4 days about refrigerators and its functionality, this video just helped me a lot thank you and I can just say this is the best explanation possible great work.

  • @mhda-c9m
    @mhda-c9m 2 роки тому +2

    شكراً لكل من ساهم بهذا المحتوى المفيد

  • @_aullik
    @_aullik 7 років тому +375

    The logical next step would be to make a video about compressors. It would be very awesome if you could also explain what a reciprocating compressor is. Thank you very much for your effort in educating us. I will start supporting you on patreon once i have a job :D

    • @SabinCivil
      @SabinCivil  7 років тому +115

      Yah, Compressor is a good topic. We will work on it once the current projects are over.

    • @CptMikeTango1
      @CptMikeTango1 7 років тому +1

      +Learn Engineering Yess, the model is already made so...

    • @_aullik
      @_aullik 7 років тому +23

      Its always nice when a YT channel listens to their viewers :D

    • @noticemesenpai3125
      @noticemesenpai3125 7 років тому +4

      I'm with you boi

    • @00crashtest
      @00crashtest 7 років тому +4

      aullik Piston compressors are outdated technology! They are energy inefficient and noisy. Think of a car engine (pistons) vs electric motor. Most noise and energy loss in a compressor is caused by the piston(s).
      By removing the piston, it will be much more efficient and quieter. This is why rotary compressors (screw, centrifugal, etc.) are much better.

  • @GaneshGanesh-cw6gq
    @GaneshGanesh-cw6gq 4 роки тому +9

    Iam indian but I don't know proper english but u r animation is so clear

  • @fuadmuhammad2275
    @fuadmuhammad2275 7 років тому +48

    Hi from HVAC-R Engineer, State Polytechnic of Bandung, Indonesia
    Thanks for making this video, good explanation & animation

    • @SabinCivil
      @SabinCivil  7 років тому +1

      I am glad to know that.

    • @whitesheatingairappliancer7101
      @whitesheatingairappliancer7101 7 років тому +5

      Fuad Muhammad has your school taught you about super heat and sub cool on refrigerator and freezers? I ask this because I do hvac and I have never read anything about it. Thank you Ron White

    • @fuadmuhammad2275
      @fuadmuhammad2275 7 років тому +4

      Ron White i have learned it, you may refer to pressure-enthalpy (P-h) diagram.

    • @ChrisCo0066
      @ChrisCo0066 4 роки тому

      @@whitesheatingairappliancer7101 I graduated a little over a year ago. We were taught it but I work on commercial refrigeration and cooking equipment and we rarely if ever use it on refrigerators but on walk-ins and ice cream machines and speciality equipment we do.

  • @LojzePotokar-xh4tm
    @LojzePotokar-xh4tm 2 місяці тому

    your explenation was fun, progressive and interractive, simple, straight to the point we need more channels like yours. This video deserves more attention.

  • @MikeV8652
    @MikeV8652 2 роки тому +21

    This seems fully comprehensible only by physicists or engineers, but I did get a little from it. I just got a new fridge, myself, and I was wondering what had become of all of those coils that used to be on back or underneath. Now I know the answer at least to that. I also know why my new fridge is almost totally quiet.

  • @copernicus6420
    @copernicus6420 18 днів тому

    This is the best explanation on UA-cam.

  • @IncroyablesExperiences
    @IncroyablesExperiences 7 років тому +159

    Great video as usual!

    • @howdareyou41
      @howdareyou41 3 роки тому +1

      Keeping glass coke bottles and cans in the freezer is a pretty bad idea though

    • @BMEPRAKULSHARMA
      @BMEPRAKULSHARMA 3 роки тому

      which software he uses to make these animations

    • @brian-th4to
      @brian-th4to 2 роки тому

      @@BMEPRAKULSHARMA roblox studio

  • @eliasaquino2152
    @eliasaquino2152 2 роки тому +1

    Wow.
    This should be taught in schools.
    This is applicable!

  • @Ferelmakina
    @Ferelmakina 7 років тому +14

    Shit, man, I felt a substantial leap of quality here. well done guys!

    • @BMEPRAKULSHARMA
      @BMEPRAKULSHARMA 3 роки тому

      which software he uses to make these animations

  • @ivancarbone3566
    @ivancarbone3566 3 роки тому

    This is the most epic video of how refrigeration works out there!!!!

  • @Vishal-Pawar
    @Vishal-Pawar 7 років тому +71

    Men you are awesome.
    I m in college even college professor are fail to make understand the concept to students. But you do.

    • @nigelbess5168
      @nigelbess5168 7 років тому +5

      he didnt explain how the throttling device decreases the pressure though

    • @dibertos
      @dibertos 7 років тому +1

      Bernoulli's principle

    • @kilianprietoperal2322
      @kilianprietoperal2322 7 років тому

      dibertos whats that and how does it work?

    • @dibertos
      @dibertos 6 років тому

      In short Bernouilli states that if a liquid is forced through a smaller diameter the speed increases and pressure decreases at the same rate. Also the pressure/speed ratio is stated by Boyle's (gas) law p1.v1 = p2.v2

    • @ErShiva
      @ErShiva 6 років тому +1

      Oo i think either u have not got right professor or not listened your professor word carefully...
      Better to go for NPTEL.

  • @Charlie-e9k
    @Charlie-e9k 3 місяці тому

    Thank you for sharing. This is the best channel on learning about how a fridge works

  • @nuke123ful
    @nuke123ful 4 роки тому +5

    Wow so much engineering ingenuity in one device, yet we just take it for granted

  • @afsanaeti3226
    @afsanaeti3226 3 роки тому +1

    1000th commentator
    Well I saw the whole video and now I know how a refrigerator works
    Thanks ❤️

  • @m.guedes
    @m.guedes 7 років тому +574

    This video was brought to you by Coca-Cola and LG.

  • @londalecarter3482
    @londalecarter3482 4 роки тому

    UA-cam needs more channels like this

  • @khybermomand4061
    @khybermomand4061 5 років тому +5

    I have found this channel very useful because it provide all information very clearly with no music and introduction. Thank you! That’s all what we want as well as keep it up

  • @randylaffy7679
    @randylaffy7679 4 роки тому

    Engineering is one of the forebuilders of humanity! Second favorite to history.

  • @BrunoPOWEEER
    @BrunoPOWEEER 7 років тому +85

    Thaaanks for another FANTASTIC engineering video!!! Can't describe in words how good this channel is!!!! =]

  • @Life_of_Matthew
    @Life_of_Matthew Рік тому +2

    Always interesting to learn more about how something that I use in my everyday life actually works!

  • @Beemgod
    @Beemgod 4 роки тому +11

    Really needed this. This visual representation aligns perfectly with my learning style. Things are making much more sense

  • @fidxdif
    @fidxdif 2 роки тому +2

    this knowledge is more important in my life than pythagoras theorem

  • @DJ1973DZ
    @DJ1973DZ 7 років тому +26

    It's really impressive explanation Thank you very much, keep going guys

    • @SabinCivil
      @SabinCivil  7 років тому +4

      We are glad to know that :)

  • @Nasiraliparay
    @Nasiraliparay 2 роки тому +1

    Even b4 5 years ago your animations are great ❤️❤️❤️❤️

  • @noreaction1
    @noreaction1 7 років тому +435

    This narrator sounds like the how it’s made narrator

    • @BassheadMusicConnoisseur
      @BassheadMusicConnoisseur 7 років тому +5

      noreaction maybe he is

    • @waaa9waaa9waaa9
      @waaa9waaa9waaa9 7 років тому +18

      Minus the puns.

    • @nultari1
      @nultari1 7 років тому +7

      this one is too robotic

    • @bodin1912
      @bodin1912 7 років тому

      You’re right, he does. I wonder if it is the same for the other videos?

    • @polymetric2614
      @polymetric2614 7 років тому +3

      he sounds like an off-brand how it's made narrator

  • @innvtr2487
    @innvtr2487 3 роки тому +2

    I don't know why, but I just really needed to know how refrigerators work. Thx :)

  • @FlameBlueNova
    @FlameBlueNova 7 років тому +5

    I knew how a Refrigerator works but I didn't know of the new advancements and improvements they have added.
    Love these videos!

  • @vigneshkankonkar8213
    @vigneshkankonkar8213 3 роки тому

    Love from india❤️animation is butter smooth & vivid.

  • @fawadgillani2304
    @fawadgillani2304 5 років тому +4

    I really appriciate ur work sir. Wonderful effort to demonstrate tecknical issues to a common man understanding.

  • @thelegendarypro2001
    @thelegendarypro2001 5 років тому +2

    very clear and easy to understand

  • @kelvinmahuthu
    @kelvinmahuthu 6 років тому +3

    perfect breakdown of how the refrigeration cycle occurs.Kudos!!

  • @monero.jeanniton
    @monero.jeanniton 4 роки тому

    Best explanation on youtube

  • @Triplex5014
    @Triplex5014 5 років тому +4

    This is the best explanation of a refrigerator ever! 10/10 👍🏼

  • @harishreddythalla
    @harishreddythalla 4 роки тому +1

    Thank you so much, I have done a 4 months course on refrigerants and solved very critical mathematical problems on Refrigerator but didn't even know where and why evaporator and compressor comes. This gave me so much intuition, thanks:)

  • @commongroundelectric5138
    @commongroundelectric5138 3 роки тому +15

    I can't believe I didn't think about this first.

  • @jaegercrown964
    @jaegercrown964 4 роки тому +2

    I never wondered how my refrigerator works? I'm so glad this video was on my recommendation 🤭🤭🤭

  • @ziljaeyan1203
    @ziljaeyan1203 2 роки тому +3

    even if i know all of these things through studies, im still finding myself binge watching all of your videos on how things work since im intrigued by the animation 10/10 would watch some more haha

  • @mansisharma9030
    @mansisharma9030 2 роки тому

    Fav channel come across so far

  • @KazeReload
    @KazeReload 5 років тому +5

    Clear and fully understandable by every engineer, maybe a bit less by not-of-field people, but still excellent work.

  • @dhruvs7390
    @dhruvs7390 6 років тому

    Your all videos have whole basic knowledge about topic thanks for your support of increasing my knowledge. ......

  • @jamalitangak
    @jamalitangak 5 років тому +6

    Who would agree if I said the Capillary Tube (Valve) is to Gain Preasure..?
    The Cooling process happen right after the refrigerant exit the High Pressure Capillary tube into Bigger tube (low pressure)
    The refrigerant change state from liquid to Vapor. This process will Absorb Heat.

  • @kacemabdallah1368
    @kacemabdallah1368 2 роки тому

    Best education Chanel, thanks

  • @venkatarr
    @venkatarr 5 років тому +4

    Amazing explanation. Happy to subscribe today.

  • @emiletard4201
    @emiletard4201 3 роки тому +1

    This is such a clever idea. i’m literally astonished

    • @Prash1c
      @Prash1c 3 роки тому +1

      So nice to see people appreciate science and engineering! :)

  • @lol-pk6jj
    @lol-pk6jj 5 років тому +15

    00:00 yes that is why i searched for how does a refrigerator work

  • @brightside5626
    @brightside5626 3 роки тому

    Thank you so much. I couldnt undrestand until I watch this video.

  • @fadingbeleifs
    @fadingbeleifs 7 років тому +12

    I don't think durability was a really really big issue with the older refrigerator is because I've seen hundreds of them that have been running for the last sixty or seventy years without an issue... My great-uncle has a deep freezer that was originally bought in 1947 and has been running like a champ ever since...

    • @abdurrahmanmoustapha
      @abdurrahmanmoustapha 6 років тому +2

      I really miss the old ones ! the modern refrigerators are really bad

    • @Boz1211111
      @Boz1211111 6 років тому

      My grandma had refridgerator that is 40 years old but she stopped using it because body panels were rusted.. It was sitting in a wet basement

  • @wjwk2099
    @wjwk2099 6 років тому

    Wow,what can be better explanation than this!!!!👌👌👌👍👍👍❤️❤️❤️

  • @williansouza8724
    @williansouza8724 3 роки тому +10

    always thought that the cold was injected in the stuff we put in the freezer. never thought that actually heat was the one being sucked out.

    • @arcfault2873
      @arcfault2873 3 роки тому +2

      As a rule high concentrations of energy always diffuse to lower concentrations. That goes for temperature, pressure, and many other things. So think of it less as cold penetrating the items in your freezer, but the items losing their energy to the less energetic surroundings. Of course all the energy has to go somewhere, which is what the condenser is for, radiating it outside the freezer.

    • @JohnGrahamDoe
      @JohnGrahamDoe 3 роки тому +1

      you can never 'add cold' so to speak, only gain or lose heat
      cold is merely the absence of heat, whereas heat is energy

  • @ashutoshsharma8634
    @ashutoshsharma8634 5 років тому +1

    Truly appreciable. The quality of their video is incomparable.

    • @solok4150
      @solok4150 3 роки тому +1

      gadndrikstik algorithm

  • @programmingingenious
    @programmingingenious 3 роки тому +6

    What is the technology behind keeping some refrigerators Fruits and Vegetables fresh way longer than others?

  • @vaughanmaybury2825
    @vaughanmaybury2825 5 років тому +1

    Cool! Especially the frozen Coke in the freezer. The way a refrigerator works is very well explained - thanks

  • @Napoleon_Blownapart
    @Napoleon_Blownapart 6 років тому +7

    Ahh thermodynamics. My favorite topic in school

    • @solok4150
      @solok4150 3 роки тому +1

      Reklopkitrixic syndrome

  • @14dandada
    @14dandada 7 років тому

    VERY WELL DONE really clear to how it works i will definitely send this to friends who wants to understand my work

  • @sab1862
    @sab1862 5 років тому +9

    3:53 That's LG refrigerator! :D

  • @unknown572
    @unknown572 2 роки тому

    Thank You for the video!. Regards from México

  • @antoniocarracedo5486
    @antoniocarracedo5486 3 роки тому +12

    Refrigerator lore

  • @Najihmuh
    @Najihmuh 3 роки тому +1

    Thanks a lot! The animation is awesome.

  • @kelger6954
    @kelger6954 3 роки тому +4

    I was literally going to look this up and it showed up in my recommended

  •  3 місяці тому

    Absolutely clear. Thank you very much.

  • @creativeturbo
    @creativeturbo 5 років тому +2

    Wow i am happy to see the air compressor is a type of solenoid engine

  • @ArifBillahOnGoogle
    @ArifBillahOnGoogle 4 роки тому

    We bought our first refrigerator today. Alhamdulillah ❤️

  • @jihongji8452
    @jihongji8452 7 років тому +17

    one day too late, had my thermodynamics exam yesterday ....

    • @SabinCivil
      @SabinCivil  7 років тому +22

      Sorry to know that. This video was supposed to release many days back. I tried my level best to include most of the features of a modern refrigerator. That caused the delay.

    • @abhimanyum5505
      @abhimanyum5505 7 років тому +1

      Learn Engineering How do you guys select the topic for a video?

    • @amitjodha9057
      @amitjodha9057 4 роки тому

      You should do anything but study the subject on the next day of an exam, it burns.

  • @weekendhomeprojects
    @weekendhomeprojects 2 роки тому

    How'd you come by this knowledge? Passed down from generation to generation since the paliolithic area? You've done a great service here.

  • @God-saves2704
    @God-saves2704 3 роки тому +3

    I wanted to know what miracle was keeping my delicious Thrifty's Chocolate Peanut Butter ice cream frozen. I have never enjoyed my ice cream with so much amazement before.

    • @pH7screwtube
      @pH7screwtube 3 роки тому

      Have not been to a Thrifty's store since I was a kid. Are they still in business?

  • @chinalocaltravel
    @chinalocaltravel 3 роки тому

    Nice video, some details our engerneer did not tell, good to learn , I am sales manager from a China freezer and chiller factory, wish to be better in my new job here.

  • @harshmangalamverma
    @harshmangalamverma 6 років тому +4

    Nowhere you could hey the video like this, I challenge.

  • @marutipunjare839
    @marutipunjare839 4 роки тому

    Love you learn engineering...engineering's never been this easy....

  • @injusticeanywherethreatens4810
    @injusticeanywherethreatens4810 7 років тому +40

    Refridgerators with a open back are a great way to give cockroaches a place to hide- my experience shows.

    • @Banzybanz
      @Banzybanz 6 років тому +3

      They like the heat.

    • @aintnoloveouthere5340
      @aintnoloveouthere5340 6 років тому +10

      You must have hid in refrigerators before

    • @orlandogarcia7082
      @orlandogarcia7082 3 роки тому +1

      Great place for roaches to live at a restaurant or fast food place.

  • @shouryaarya8445
    @shouryaarya8445 5 років тому

    Best video on vapor compression cycle. I really appreciate your content. Thank you.

  • @ratneshkumarpathak4232
    @ratneshkumarpathak4232 3 роки тому +4

    I have the same refrigerator and I know all of its internals
    But I never read the manual...😆

  • @sushilchaudhari7923
    @sushilchaudhari7923 7 років тому +2

    I understand better from your videos than books 😀

  • @manfredinotarangelo5525
    @manfredinotarangelo5525 5 років тому +4

    Instead of the expansion valve there is the throttling device ("solenoid winding"). How does this device decrease the pressure?

    • @northernstar450
      @northernstar450 5 років тому +2

      because pressure is directly proportional to temperature according to the formula PV=MRT as pressure rises by being forced through the capillary tube its temperature rises soon after the capillary tube it expands and takes energy from the surroundings
      cooling it

    • @manfredinotarangelo5525
      @manfredinotarangelo5525 5 років тому +1

      @@northernstar450 Why does the temperature rise?

    • @northernstar450
      @northernstar450 5 років тому +2

      @@manfredinotarangelo5525 temperature rises as a consequence of energy input, think of it like you pump up the tire of your bike, at the valve the tube is boiling hot soon after the valve the gas expands and therefore it cools down (just like the white jet streams you see in the sky, after a compression the expansion side is cold in the jet engine that is condensing the little water droplets and you see them as white lines in the sky, in the refrigerator the capillary tube due to internal friction and smaller diametre the gas by compression gets liquefied. at the entrance to the freezer I believe the pipework gets wider and that releases the high pressurized liquid to a low pressure (think of it after a traffic jam the road suddenly widens up to 10 lanes ) so the expansion takes away energy from the surroundings and that causes cooling the surroundings - thats the freezer area of the fridge. in the end by taking the energy from the sorroundings our gorgeous gas becomes liquid (i the black condensor grill behind the frindge and goes back to the compressor, and the cycle continues

    • @manfredinotarangelo5525
      @manfredinotarangelo5525 5 років тому +1

      @@northernstar450 The decrease in pressure causes a decrease in temperature. this is obvious. the decrease in pressure cannot be guaranteed solely by internal frictions because the tube that connects the gas tank in a high pressure liquid state with the evaporator is very short, therefore the pressure drops will be very small.

    • @northernstar450
      @northernstar450 5 років тому +2

      @@manfredinotarangelo5525 Possibly ..... apparently on the video they were talking about 2 metres and that for this fridge model is good enough, I believe that CFD and actual testing has led to this solution, in my youth I used to see the usual valve that you spin and to think about it I don;t know how the chill is regulated on a fixed tube system, I believe its more to do with sensors and motor spin

  • @itsarjun19
    @itsarjun19 2 роки тому

    Beautifully explained!!

  • @nosignal5804
    @nosignal5804 7 років тому +24

    But how does the throttling device decreases the pressure and hence the temperature?

    • @cr-ic3qv
      @cr-ic3qv 7 років тому +8

      To understand why the temperature drops read about the joule-thomson effect.

    • @nosignal5804
      @nosignal5804 7 років тому +8

      +chetan raina
      Thnx for the tip, I just did... Could you tell me if I could put it this way:
      I see "gas pressure" as how much the gas molecules hit each other and the walls of the container, so when the molecules pass through the throttle not all of them succeed in passing, so we have less molecules on the other side of the throttle, so the pressure decreases on that side because less molecules are hitting each other... And because the pressure drops the temperature drops by charles and boyle's laws.
      Sorry for deforming physics XD

    • @cr-ic3qv
      @cr-ic3qv 7 років тому +6

      No Signal yes you're right. This is the reason that the throttle is thinner than the container tube. When the coolant goes from that thin capillary tube to the container with much wider walls it is spreading to a larger area. Increase in area means less pressure because collisions will decrease as area increases.

    • @nosignal5804
      @nosignal5804 7 років тому +2

      +chetan raina Thnx, you're awsome!

    • @cr-ic3qv
      @cr-ic3qv 7 років тому +2

      No Signal glad to help :)

  • @jaiprakashudar3272
    @jaiprakashudar3272 3 роки тому

    The real learning channel , Great video as usual!.

  • @JonGretarB
    @JonGretarB 7 років тому +16

    The animator might wish do skip storing his soda in the freezer compartment. ;)

    • @niccatipay
      @niccatipay 7 років тому

      I did that before and it barely froze my soda. I felt it for a year there *actually surprised that I left it there for a year* then ice formed and there is a sugar syrup felt up top.

    • @thatxonexguy5438
      @thatxonexguy5438 5 років тому

      @@niccatipay u should prolly get a new fridge bro

  • @sk-7523
    @sk-7523 4 роки тому

    simply you guys are the best! thank you so much!

  • @mohamedelabbassi4597
    @mohamedelabbassi4597 5 років тому +6

    i was thinking that i can repair my fridg easly until i watched this

  • @abhijhala7784
    @abhijhala7784 5 років тому +1

    By far the best explanation🙌

  • @marklangridge2734
    @marklangridge2734 5 років тому +4

    Really interesting video, it did answer many of my questions of refrigeration. It would have been nice if the workings in the compressor where displayed a little more clearly. Having two tubes mysteriously dissapear and a piston pumping hot and cold, whilst I get it, its not as clear as showing the in and out pipes.

  • @123nicefellow123
    @123nicefellow123 6 років тому

    Just came home from work at the fridge factory and watched this video - great stuff!

  • @imjustariceguy
    @imjustariceguy 5 років тому +3

    I l o v e r e f r i g e r a t o r s

  • @denisborisov4917
    @denisborisov4917 3 роки тому +1

    what a great explanation, thank you!

  • @alberteinsteinthejew
    @alberteinsteinthejew 7 років тому +38

    I'm still waiting Microsoft to make a fridge

    • @johnettipio
      @johnettipio 4 роки тому +1

      Your wish has come true

    • @asvalias
      @asvalias 4 роки тому +3

      'Your activation is expired. Please activate the fridge to get access to it'

  • @utsavranjan2336
    @utsavranjan2336 4 роки тому

    Very very nice explanation..... Each and every thing explained smoothly.... 👍👍👍

  • @andrewyek
    @andrewyek 6 років тому +4

    hii, superb good info. and explanation. thanks.
    do you have a video of explanation such as this that explains the difference between fridge and freezer ? what's the different ?
    thanks
    andrew

  • @Nazzz42
    @Nazzz42 5 років тому +2

    A perfect introduction to thermodynamics