Heat Pump Opa-locka

Posted on: June 28, 2015 by in Heat Pump
25 Comments
Heat Pump Opa-locka


Animation of compression refrigeration cycle and air conditioning
Heat of vaporization
Pressure and boiling point
Why is an aerosol can cold?
Compression refrigeration loop
Condensing and evaporating coolant
Window air conditioning unit
Compressor, expansion valve, evaporator coil, and condensing coil
Parts 2 and 3 include content on active heating, air distribution, air handling units, cooling towers, indoor air quality, chiller operation, ground-source-coupled heat pumps, and economizer cycles

25 Responses

  1. aB3S Solutions Private Limited says:

    How Air Conditioning Works Animation–Part 1 of 3

  2. Nicholas Lau says:

    So the electricity is used to power the pump and the fans, not including
    the CO2 generated by making electricity, there is no CO2 generated?

  3. elemento1991 says:

    Although I’m pretty sure justin Snyder is just a troll I will explain this
    as simply as possible. You keep saying you can’t boil something without
    heat. You are correct, because the pressure is lowered by the evaporator
    the liquid now wants to become a gas and it pulls the heat (or energy) it
    needs to do so from the particles around it thus making them cold so that
    it can find its balance in gas form as energies are always looking to
    balance. 

  4. elemento1991 says:

    One more thing to help you understand if you actually want to justin. Have
    you ever been outside swimming on a low humidity day? If you pay attention
    you will feel much colder than a muggy high humidity day because the water
    is evaporating much faster. As it does it is taking the heat away from your
    body to make the phase change.

  5. elemento1991 says:

    Your body also naturally utilizes this thermodynamic property with sweat.
    Pretty amazing the human body huh?

  6. floopy312 says:

    Does the coolant need to evaporate in order for it to suck up heat? What if
    I just reduce the compression level but without changing its physical state
    (gas), will it still suck up heat?

  7. Pinkie Pie says:

    I noticed a lot of people uprated the other guy’s comments, making it clear
    they aren’t educated either. Here’s a copy/paste to help you all understand
    “boiling” and “condensing” and why they’re cold and hot respectively when
    it comes to an A/C, but not when it comes to, say, your stove. (If they
    weren’t stupid, they would recognize it as they would understand what’s
    making water boil on a stove to begin with).

    There’s /two/ ways to make something boil. One is by adding energy to it,
    making it hotter, causing the molecules to bounce around and form steam.
    That’s boiling on a stove.

    Boiling in an A/C, as in this demonstration, isn’t by adding heat, but by
    reducing pressure. This makes it boil since the molecules aren’t being held
    down as much, causing, again, steam.

    When you reduce pressure, causing boiling, it makes it cool down. (Since
    you aren’t making it boil with heat).

    When you add pressure, such as, say, pushing down a piston into an enclosed
    space, that energy, the kinetic energy, goes into the molecules and atoms,
    making them ‘move’ faster, making it hotter.

    When the video says “boiling” it means reducing pressure, when it says
    “condensing” it means adding pressure. You’re meant to be smart enough to
    figure this out for yourself because of the pump and nozzle. This is a
    science video, which means it’ll generally refer to adiabatic processes and
    not your general daily-life environments. Anyone who assumed it wasn’t
    adiabatic was, again, an idiot.

  8. martin risby says:

    Really learning something useful. Thanx

  9. Jérôme Lefebvre says:

    Very well explained

  10. landon blackedge says:

    this guy freakin suckkkkkksss!!!! no help at all…

  11. Raul dos Santos says:

    It’s never too late to learn new things. ;)

  12. Eric Phillips says:

    Thank you both very much — awesome videos. Putting the diagrams to the
    concepts will help me remember these on my arch registration exams!

  13. gevelegian says:

    Thank you so much!

  14. Gerald Snyman says:

    Thank you for this video series. Now I understand air conditioning and heat
    pumps very well!! I particularly appreciate the very detailed systematic
    build-up to a more complex system 🙂 Thanks, great video

  15. kiniki deek says:

    Thank you for the explanation. I am trying to understand the basics or air
    conditioning. It has been a challenge to find something explain it
    simply. 

  16. Jac k says:

    Not everyone understands this relationship between pressure and boiling
    point.
    I remember, during one of my interviews, I was asked to explain the
    refrigeration cycle. When I started talking about BP at the condenser side,
    the interviewer told me, “What is the connection of boiling point when it
    is already gas in the first place (after compressor)?”. I told him to let
    me finish my explanation first.. lol.. but when I got into the evaporator
    side, he just realized how stupid his question is. It’s thanks to my
    instructor that I understood this process.

    FYI for other people who are new to this:

    High Boiling Point means Higher Vaporization and Condensation point.
    Meaning that gas will turn to liquid at a higher point and vice versa.

    at the Evaporator side:
    Low Pressure, Low Temp and Low Boiling Point.
    Since we dont want to increase the temp so much just to evaporate the
    liquid refrigerant, we will now have to reduce the pressure.

    I hope it helps. :)

  17. Dj Clean says:

    i think different terminology is used here. was a bit confused about the
    term boiling, and hot and cold. 

  18. Ronald Campbell says:

    Air conditioning theory.

  19. Anthony Hoekstra says:

    Liquid refrigerant absorbs heat as it boils into a gas (saturation
    temperature). Refrigerant boils at a low temperature (example R22 boils at
    -41.62 degrees F). So yes refrigerant evaporating in a cooling system is
    cold.

  20. Yeah,i guess so says:

    Very informative

  21. Jeff SC says:

    Good and simple explanation. I go back to this video every time AC topic
    comes up.
    Warning to new viewers: Please do not waste your time commenting on Justin
    Snyder’s post. Do not get carried away. Even a boiling water in a vacuum
    container is not hot. Try it.

  22. Jay Bartgis says:

    This is very interesting!

  23. wolfpackFTW17 says:

    As an electrical engineering student doing some mechanical based projects,
    this is very helpful!! Thank you!

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