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[-] Godort@lemm.ee 132 points 1 month ago

To be fair, the physics that makes refrigeration work does feel like you're manipulating primal forces like a wizard

[-] bradorsomething@ttrpg.network 79 points 1 month ago

You are literally pumping hot outside.

[-] PunnyName@lemmy.world 48 points 1 month ago

While utilizing the physics of pressurized coolants that prefer to be gasses around your house.

[-] acosmichippo@lemmy.world 22 points 1 month ago
[-] SorteKanin@feddit.dk 15 points 1 month ago

Any sufficiently advanced technology is indistinguishable from magic.

[-] GissaMittJobb@lemmy.ml 20 points 1 month ago

And you can reverse the process, pumping heat inside instead, even when it's freezing outside! Magic, I tell you.

[-] NegativeInf@lemmy.world 39 points 1 month ago

Do not upset Maxwell's demon when you're down there sorting the cold atoms from the hot ones!

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[-] GluWu@lemm.ee 122 points 1 month ago

There's a tank of cold inside. Its the primary export of northern European countries and sustains nearly their entire economies since the only other thing they can "make" is fucking rotten fish. Its important to recycle your AC every 3 years before it runs out of cold by throwing it into the ocean where it can return to be made into glaciers.

[-] DataDisrupter@feddit.nl 53 points 1 month ago

Well, because you didn't add a /s to your comment, some day it will end up as an answer spewed out by some LLM, as absolutely factual.

[-] Allero@lemmy.today 17 points 1 month ago

Let's hope people won't get so reliant on LLMs and so uncritical they follow through

[-] nawa@lemmy.world 12 points 1 month ago

I see no downsides

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[-] Famko@lemmy.world 20 points 1 month ago

This anti-swedish sentiment makes you look like a Dane.

[-] Barbarian@sh.itjust.works 11 points 1 month ago

That's impossible. Everyone knows that Danes can't communicate.

[-] bionicjoey@lemmy.ca 14 points 1 month ago

Weirdly this is basically how refrigerators worked before refrigeration was invented.

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[-] Chivera@lemmy.world 71 points 1 month ago

Turn it around to cool the outside. Global warning solved.

[-] Daefsdeda@sh.itjust.works 37 points 1 month ago

Actually a more efficient electric heater. This is known as an heat pump, aka reverse AC

[-] Allero@lemmy.today 22 points 1 month ago

Heat pump was one of the inventions I thought of in my childhood and was like "oh, it actually works and is good" as an adult.

Of course, the child version was along the lines of "what if we take fridge, put the cold end out and hot end in", but you see the point.

[-] Tryptaminev@lemm.ee 13 points 1 month ago

So did engineers since decades. Just the fact that you get efficiency ratings of more than one in terms of primary energy input to heat energy provided should always have been a massive selling argument. If planned well you can get yearly averages of 400-500% energy output vs energy input.

[-] ChickenLadyLovesLife@lemmy.world 12 points 1 month ago

Seriously, that would have to work better than those giant fans they're building offshore.

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[-] snue@feddit.dk 55 points 1 month ago

this video from 'technology connections' explains it quite well ^^

https://youtu.be/_-mBeYC2KGc

[-] ocassionallyaduck@lemmy.world 10 points 1 month ago

I love how mad he gets at single duct in room units too. Rightfully so.

[-] captainlezbian@lemmy.world 48 points 1 month ago

Through the magic of the latent heat of vaporization

[-] sane@discuss.tchncs.de 31 points 1 month ago

i feel technologically connected right now

[-] salmoura@lemmy.eco.br 14 points 1 month ago

♫ thermodynamically smooth jazz ♫

[-] Holzkohlen@feddit.de 37 points 1 month ago* (last edited 1 month ago)

Heat pumps really are amazing tech. What if I tell you that this is also how your fridge works. Crazy, right?

[-] Honytawk@lemmy.zip 11 points 1 month ago

They are also one of the few things that are more than 100% energy efficient.

300% to be exact. Because it uses some natural phenomena that just needs a little jump start and then can be maintained with little energy for massive air movement.

[-] Aux@lemmy.world 11 points 1 month ago

That efficiency metric doesn't really reflect what's going on. Of course moving stuff around is easier than heating it.

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[-] absentbird@lemm.ee 10 points 1 month ago* (last edited 1 month ago)

Some are as high as 510% efficient

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[-] Ruthalas@infosec.pub 26 points 1 month ago

Shove the hot out the window. *taps head

[-] FiniteBanjo@lemmy.today 13 points 1 month ago

Literally how it works, too.

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[-] FiniteBanjo@lemmy.today 25 points 1 month ago

The air is hot because it's moving around a bunch.

The air gets fanned over some coils filled with coolant.

The coolant gets heated and starts moving around a bunch causing it to move through the coil through some insulation foam to the outside half.

Once it nears the end of the loop it has to go through the compressor.

The compressor squishes the moving coolant and now it can't move around as much, all the heat gets dissipated into the surrounding outside air.

The compressor lets the cooled coolant go back through to the inside.

Process Repeats with diminishing returns.

Wizard_Fucking_Magic

[-] hyhachi@sh.itjust.works 25 points 1 month ago

it adds heat to the system to make more cold. duh. global warming solved. stupid enviromentards.

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[-] Glowstick@lemmy.world 22 points 1 month ago

Ok, but here's a real answer. Have you ever sprayed a can of hair spray or wd-40 and the can got cold? That's basically the same process.

[-] RootBeerGuy@discuss.tchncs.de 23 points 1 month ago

Install a 12-pack of wd40 in my window, got it!

[-] PunnyName@lemmy.world 8 points 1 month ago

Turn it upside down, first.

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[-] LordKitsuna@lemmy.world 20 points 1 month ago

Oh boy have i got a video you you anon!

https://youtu.be/7J52mDjZzto

It has an entire section at the start explaining how these magic cold boxes work to help with understanding their next evolution heatpump

[-] where_am_i@sh.itjust.works 10 points 1 month ago

ofc it's a technology connection video. Lemmy is the dude's biggest organized fan club

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[-] Dkarma@lemmy.world 17 points 1 month ago

"all of the sudden"

Disregard

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[-] ramenshaman@lemmy.world 15 points 1 month ago

Wait until he finds out about refrigerators.

[-] pyre@lemmy.world 14 points 1 month ago

ICP frequenting 4chan?

[-] boatsnhos931@lemmy.world 14 points 1 month ago
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[-] SatansMaggotyCumFart@lemmy.world 13 points 1 month ago

Maxwell’s demon lives in there.

[-] lvxferre@mander.xyz 10 points 1 month ago

It's like a mini-Gandalf telling all those Balrog-shaped hot molecules "YOU SHALL NOT PASS!".

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[-] KillingTimeItself@lemmy.dbzer0.com 12 points 1 month ago

phase change refrigerant loops baby!

Technically it's a uni directional heat pump. But we're just abusing the basic laws of thermodynamics. Fluids when compressed, heat up, and when expanded, cool down. Compress it, it heats up, cool it down, and then expand it, and suddenly, boom sub ambient cooling has been achieved. (the phase change happens in between to maximize effectiveness/efficiency)

[-] robocall@lemmy.world 9 points 1 month ago

It's a trick. It costs money.

[-] Iheartcheese@lemmy.world 24 points 1 month ago

It turns money into cold. Transmutation.

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[-] nexguy@lemmy.world 9 points 1 month ago

Hot air goes out, cool air goes in. You can't explain that.

[-] werefreeatlast@lemmy.world 7 points 1 month ago

LOL 😅...so you got a cup of coffee ☕, you wait, it gets cold 🥶....how is that even possible?!!!

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this post was submitted on 07 Jul 2024
473 points (95.0% liked)

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