Refrigeration cycle scoffs at your mere 100% efficiency
Nah this thing puts out light and probably vibrates as well, so not even 100%.
Well ultimately it all becomes heat. Maybe a tiny amount escapes a window or something. So we could say 99%.
But heat pumps still reign supreme, at least until it gets super cold.
In the end we are all infinitely falling into the pit of entropy
Speak for yourself.
Refrigeration just moves heat, it does not create it.
Why create heat when you can just steal it from somewhere else, though
“Waste heat” is a relative term.
Why drink my milkshake when I can drink yours? I can DRINK IT UP!
It would end up creating some due to inefficiencies, which would contribute to the heat at the end.
Not true, it is true that it is heating at %100 efficiency that is to say %100 of the electrical energy is being transferred into heat (although technically some is being transferred into IR light not necessarily what you want) but your goal is probably not to simply create heat your goal is probably to heat the room or at least yourself and their is plenty of waste heat going off into space somewhere also you can achieve more than %100 heat transfer by compressing the external air’s heat we call these heat pumps and they can achieve +400%. The key word is efficiency.
It’s always wild to me that 100% heating efficiency is actually kinda not great. Also the fact that we can use the heat from air that is colder than what we want in order to generate more heat I mean that’s just witchcraft.
Well, we’re not generating heat with heat pumps. We’re compressing atoms to make them angrier and pass other atoms by that bunch to even out the angriness. Could also substitute the word jiggy for angry.
I get that(enough, anyway, I just need to watch some videos on them to be honest) but it’s still super wild to say out loud.
Which part, getting jiggy wit it or the witchcraft?
Huh, so what if the jiggy atoms come in contact with batman atoms?
Then Batman is going to have to get jiggy with it.
Na-na na-na nana?
bAtMaN
Superman tries to shake off Batman, but Batman just smiles and tenses his anus even more…
🤓 ACKSHUALLY
It’s not possible for a heat pump - or anything - to even be 100% efficient, let alone 400%. Efficiency is measure of how much of the input energy gets converted to useful output energy, and since heat pumps don’t actually create heat the useful output is the compressor’s ability to pump refrigerant about. The Coefficient of Performance - the ratio between energy put in and useful work done - is 400% for a heat pump (give or take).
heat pumps don’t actually create heat
🤓 ACKSHUALLY
Heat pumps create a fair bit of heat due to friction and electrical resistance in the compressor.
🤓 AKSHUALLY
Energy is conserved. It is converted from another form of energy, or in this case mostly transported, not created.
I always like to muse that in terms of electronics the heat is caused by resistance to current and that heat is usually considered inefficiency, and since no other load exist or work is done that means heating elements are about -100% efficient.
ir light is heat dawg
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If you want to make heat, start up a gaming PC. At least the energy will go to doing something before it gets turned to heat.
I legitimately had to buy a heater after I stopped regularly using my desktop because it was what was keeping my room warm.
running FFXI and later WoW on my first rig (many moons ago) allowed me to keep my room nice and balmy all winter, to the point where I’d leave a window open for much of the day during snow-supporting temps and it’d still be toasty
I don’t have a source handy, but someone attempted to heat their apartment with computers and ended up spending something like >$1000 in utilities that month.
Resistive heat is expensive - that’s why heat pumps are so good.
In practice, they would have gotten identical results with any electric resistive heater. Fans, oil filled, ceramic, etc. all largely doesn’t matter as it is Wh of electricity to Wh of heat.They must have overshot, then. Computers are 100% efficient space heaters that produce math as a byproduct.
in the uk price per kWh for electricity is over five times cost of natural gas. We all use natural gas boilers to heat water which flows through radiators to warm our rooms. Anybody who heats their house with space heaters is just throwing money away whether it’s 100% efficient or not.
You see more heatpumps these days but that’s another thing entirely
Heat pumps cap out at about
250%400% efficiency, so you’d still be spending more to run them than to burn natural gas at that ratio.Heat pumps easily exceed 2.5 COP. More like 4 in the UK climate. And gas isn’t 100% efficient either. But yeah it’s a wash or can be more expensive to heat with heat pumps where electricity is really expensive. It helps if we all conveniently ignore externalities like pollution and carbon too.
Thanks for the correction, edited. How is gas not 100% efficient, though?
But yeah, heat pumps are definitely more environmentally friendly (unless you’re habitually letting the refrigerant out, o guess). The real argument is whether the extra energy is worth it for protein folding (I’d say generally no, but if you don’t have a heat pump, might as well).
Burning any fuel isn’t 100% efficient, I went out and found a website talking about it that might help
Boo, get heat pump you loser
Most of the time, we consider heat output to be inefficient. It only works here because heat happens to be its purpose.
You could say it’s 0% efficient.
I dunno, I’m seeing some light.
Light is absorbed by materials and ultimately becomes heat.
Doesn’t everything ultimately become heat?
Yes, that is why it states “this is what peak thermodynamic performance.” In electronics people are taught that no device is 100% efficient because energy is lost as heat. A heater is 100% efficient because everything becomes heat.
Four or five?
and what happens to the energy of said photons once they interact with your retina?
Pfftt. Splitting wood is peak heat thermodynamics. And I can attest it keeps you warm down to -40F.
People say efficient without saying efficient at doing what with what.
That is how the power supply of my Laptop look like, playing Cyberpunk 2077 on my laptop.
Winter is gaming season.
I was testing the AI image generating capabilities of a M1 MacBook Air 16GB.
It shuts down at 113°C (235°Freedom)
113ºC is hard on the limit, chips at 140ºC convert the PC in an Paperweight. Normally they desconnect the Device with >90-95º. Permit 113º is maybe related to an programmed obsolence policy from Apple.
Turn that entropy up to 11, boi!
(As a nerd) I came here for the nerdy comments.
Make those heating coils out of superconductors and it’ll be even more efficient.
You’re objectively wrong here.
So hot.
