To be fair, the physics that makes refrigeration work does feel like you're manipulating primal forces like a wizard
131 0 ReplyYou are literally pumping hot outside.
78 0 ReplyWhile utilizing the physics of pressurized coolants that prefer to be gasses around your house.
48 0 ReplyAnd you can reverse the process, pumping heat inside instead, even when it's freezing outside! Magic, I tell you.
20 0 Reply
Do not upset Maxwell's demon when you're down there sorting the cold atoms from the hot ones!
39 0 ReplyDid Maxwell contribute to thermodynamics?
5 1 Reply
Who needs magical thinking when you have thermodynamics?
1 0 ReplyMaterial phase changes are like a cheat code for humanity. Reusable chemical handwarmers are also black magic. You just click a metal plate inside and all of a sudden it's a hot solid.
NightHawkInLight made a video showing how you can mix two different salts together and it'll create a packet that stays at 65 degrees for hours.
1 0 Reply
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.
121 0 ReplyWell, 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.
54 1 ReplyLet's hope people won't get so reliant on LLMs and so uncritical they follow through
17 0 ReplyI see no downsides
12 0 ReplyDo LLMs ignore the /s even?
2 0 Reply
This anti-swedish sentiment makes you look like a Dane.
20 0 ReplyThat's impossible. Everyone knows that Danes can't communicate.
11 0 Reply
Weirdly this is basically how refrigerators worked before refrigeration was invented.
14 0 ReplyBut instead of throwing out the refrigerator, you'd just add more cold to it.
1 0 Reply
Turn it around to cool the outside. Global warning solved.
70 0 ReplyActually a more efficient electric heater. This is known as an heat pump, aka reverse AC
36 0 ReplyHeat 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.
22 0 Reply
Seriously, that would have to work better than those giant fans they're building offshore.
12 0 ReplyOoh, I've always wondered what those were for. Makes sense.
3 0 Reply
this video from 'technology connections' explains it quite well ^^
54 0 ReplyI love how mad he gets at single duct in room units too. Rightfully so.
10 0 Reply
Through the magic of the latent heat of vaporization
48 0 Replyi feel technologically connected right now
31 0 Replyâ« thermodynamically smooth jazz â«
14 0 Reply
Heat pumps really are amazing tech. What if I tell you that this is also how your fridge works. Crazy, right?
37 0 ReplyThey 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.
12 1 ReplyThat efficiency metric doesn't really reflect what's going on. Of course moving stuff around is easier than heating it.
11 0 ReplySome are as high as 510% efficient
10 0 ReplyThe vapor compression cycle isn't exactly natural, and the compressor still needs a bunch of energy to keep going once it's started.
5 1 ReplyYup. I'm hoping my AC and furnace die around the same time so I can just replace both with a heat pump. Not sure if it'll save much on heating prices since both nat gas and electricity are pretty cheap in my area, but it can hopefully make maintenance simpler.
1 0 ReplyAh... energy doesn't work that way. You can't have a perpetually endless cycle with 100% efficiency in real world.
3 6 Reply
Why would they remove heat any differently, itâs the same concept cooling a fridge or freezer as a room. Am I too ignorant to understand why this is crazy because I want my mind blown.
3 0 ReplyHow about saying that a normal air con unit, with a few extra valves, can heat as well as cool - in other words, if you've got Aircon, you've got a full heat pump, just without a pipe to do the heating bit. The energy you're spending cooling your house could also be heating your water... For free.
2 0 Reply
Shove the hot out the window. *taps head
26 0 ReplyLiterally how it works, too.
13 0 ReplyTechnology Connections has a great video that goes in more detail. Basically an AC is a reverse heater
3 3 Reply
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
25 0 Replyit adds heat to the system to make more cold. duh. global warming solved. stupid enviromentards.
25 0 ReplySo, if we all turned up the heat also during summer, the climate would cool down! Genius! Just don't go inside.
5 0 ReplyNo yah dummy. Put the Room in the middle of the Earth and PUMP all the outside heat into the planet core!
BAM! Instant Arctic Weather in the middle of summer !
And BAM! Reverse it for the winter!
BAM! Mild Temps all Year round!
You can thank me later EnvironMentaLists!
1 0 Reply
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.
21 0 ReplyInstall a 12-pack of wd40 in my window, got it!
22 0 ReplyTurn it upside down, first.
8 0 Reply
I think whip-its are a much more fun way of teaching that concept.
1 0 Reply
Oh boy have i got a video you you anon!
It has an entire section at the start explaining how these magic cold boxes work to help with understanding their next evolution heatpump
20 0 Replyofc it's a technology connection video. Lemmy is the dude's biggest organized fan club
10 0 ReplyBased Lemmy users just understand how good it is. I can't wait for his third half hour video about dishwashers
6 0 Reply
"all of the sudden"
Disregard
17 0 ReplyIn ye ole Enlysch, it was
âAll of ye suddenâ
For some raisin, âall of the suddenâ just tastes better to me.
Technically âall of a suddenâ is more correct.
1 0 ReplyAll of some sudden?
1 0 ReplySome of the sudden.*
1 0 Reply
Wait until he finds out about refrigerators.
15 0 ReplyICP frequenting 4chan?
14 0 Reply15 1 ReplyWell I love AC Momma! And she loves me too! And she makes my titties real perky!
2 0 Reply
Maxwellâs demon lives in there.
14 1 ReplyIt's like a mini-Gandalf telling all those Balrog-shaped hot molecules "YOU SHALL NOT PASS!".
10 0 ReplyThe demon lets the fast ones out and the slow ones in.
7 1 Reply
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)
12 0 ReplyIt's a trick. It costs money.
9 0 ReplyIt turns money into cold. Transmutation.
24 0 ReplyYeah for whichever neighbor the extension cord is connected to
6 0 Reply
Hot air goes out, cool air goes in. You can't explain that.
9 0 ReplyLOL đ ...so you got a cup of coffee â, you wait, it gets cold đ„¶....how is that even possible?!!!
10 3 ReplyPhysics, dog
7 0 ReplyBy boiling special magical water
5 0 ReplyMagnets!
5 0 Replyhttps://home.howstuffworks.com/magnetic-air-conditioner.htm
Maybe not far off.
2 0 Reply
Magnets
6 1 ReplyYou have to pay the bill so that makes sense
5 0 ReplyDidn't Einstein work on some of the compression technology that went into refrigeration? Pretty sure he had something to do with it.
4 0 ReplyNope, not compression tech. The Einstein refrigerator is an absorption refrigerator and these don't use compressors.
3 0 Reply
who has a window like that
3 0 ReplyAmericans. Wider belly needs wider windows.
2 0 Reply
Its a placebo your room isn't actually cooling down. The power companies just want to charge you more money.
2 0 Reply