r/pcmasterrace Oct 21 '21 Helpful 5 Wholesome 7 Hugz 6 Silver 10

Yeah, waterloops are great, but can your GPU power a Stirling engine? Build/Battlestation

13.4k Upvotes

1.1k

u/Machine_Galaxy RYZEN 3900X, RTX TITAN x2 SLI, 64GB RAM Oct 21 '21

Now that's a really cool idea.

662

u/Stonetooth1989 11900k, RTX 3090, 32gig @3600mHz/CL16,16,16,36 Oct 21 '21 edited Oct 21 '21 Calculating

"pushes glasses further up" Actually, in this case it's a warm idea! (Edit: formatting)

207

u/thehandofgork Oct 21 '21

Sterling engines are neat because they work whenever there's a temperature difference. So you could run one by putting it over a cup of ice, for example.

Btw, I dig your pun here, but I also like sterling engines so I had to comment.

90

u/heurrgh Oct 21 '21

Sterling engines are neat because they work whenever there's a temperature difference

Not the one I bought as a kit off of Ebay for £25. It was so badly made, I couldn't make it turn by hand. :-(

29

u/NiwiGomila Oct 21 '21

Oh no D:

12

u/KotzubueSailingClub 1050 Ti uber Alles Oct 21 '21

Oh no.

1

u/vrijheidsfrietje i7 8700k | RTX 2070S | Z370-P | 16GB2666DDR4 | 3340x1440 Oct 21 '21

Oh no no no no no!

14

u/eskaneo Oct 21 '21

No this song!!

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u/MusicianMadness Oct 21 '21

Fun fact: While a temperature difference does make it run it is actually a pressure difference that does the work. Both (non-zero) integrals are isothermal processes therefore the difference in temperature is not part of the process of work.

The reason why temperature makes it run when pressure is doing the work is because a change in temperature of either end (within the same volume of gas in the cylinder) creates a pressure differential.

34

u/Sythe64 Oct 21 '21

That just like the age old argument that pumps creat flow, not pressure.

23

u/abbufreja Oct 21 '21

Pumps create flow pressure is the measurement off resistance to flow

15

u/Pointy_End_ Oct 21 '21

Stop! You’re giving me flashbacks to fluid dynamics class 🙃

7

u/SToo-RedditSeniorMod Oct 21 '21

Haha, I just had exam two weeks ago ;)

4

u/troll-k Oct 21 '21

>fluid dynamics class

I'm an egomaniac who feels they are smarter than the average bear (who also thinks of themselves as a huge dumb ass). fluid dynamics class? Yeah, you remind me why I am the later even if the former is true.

7

u/WaitForItTheMongols i3 4130, R9 270X, 8 GB DDR3 Oct 21 '21

What? No. Viscosity is resistance to flow.

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u/MusicianMadness Oct 21 '21

I can see how it sounds like that. However due to the very definition of work the process is not due to temperature difference it is pressure. It is an isothermal process so there is no net heat transfer during the work cycle that contributes to the work.

16

u/space_keeper Oct 21 '21

I'm disappointed you haven't used the word "adiabatic" even once. It's one of those words that you could go your entire life and never encounter, and may never get to use in general conversation.

9

u/hlekx i5-7500, GTX 1060 3GB Oct 21 '21

YESSS THE ADIABATIC PRINCIPLE THANKUUUU TEMPERATURE AND PRESSURE ARE 100% CONNECTEDDDDD ITS THE SAAAME THIIIING GUYSSSSS

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u/karl_w_w 3700X | 6800 XT | 32 GB Oct 21 '21

You mean the age old misconception. Pumps impart potential, whether that causes the fluid to flow or increase in pressure, and to what extent, depends entirely on the rest of the system.

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u/1jl i5-6500, GTX 1070 Windforce OC, 16B DDR4 Oct 21 '21

Actually it's a temperature gradient idea

27

u/josedasjesus Oct 21 '21

i can imagine all sorts of cool custom machines made for every GPU model in the market, the heat will always be there we must use it

17

u/Lettuphant Oct 21 '21

I actually use mine to dry my clothes lol. Mining on CPU & GPU only earns a few pounds, but it is enough to pay for the electricity! Boom, free ~500W space heater.

-10

u/SuperCyka Ryzen 7 3700X | 3080 Ventus 3x 10g OC LHR Oct 21 '21

Why don’t you just get a drier?

18

u/TheOneTEM Core i7 9700K | ASUS TUF RTX 2060 | 32 GB DDR4-2666 Oct 21 '21

because driers dont pay for their own electricity?

10

u/SuperCyka Ryzen 7 3700X | 3080 Ventus 3x 10g OC LHR Oct 21 '21 edited Oct 21 '21

They pay for themselves in ease of use and efficiency. How many clothes can you dry with a space heater, and how long does it take vs. a drier that can be bought for ~100$ on Craigslist.

Edit: okay, Reddit has a vendetta against driers apparently

5

u/pongobuff Crap Oct 21 '21

Well a space heater has a max wattage of 1500W due to wall socket fuse limits, and he said his PC is 500W. 1/3rd as good in terms of drying.

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u/kry_some_more Oct 21 '21

It's literally a whole untapped market of devices that "pretty up" your case, and they're all powered by the heat from your GPU.

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u/SteezMe1234 Oct 21 '21

Best pc idea I've ever seen. Now who's building the rad steam punk one?

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u/Scotty_do Oct 21 '21

Then attach a fan and let the heat help cool your rig!

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u/f0rcedinducti0n 5950X@4.65GHz 1.28 Vcore 64GB@4000MHz | Dark Hero | Strix 3090 Oct 21 '21

Yes, but also, if it cooled enough to help it would stop working.

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u/Death7adder Oct 21 '21

Scientific fan curve!

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u/OathOfFeanor Oct 21 '21

Is that any different from any fan with a 0 RPM mode as is common on power supplies? Not needed if the temp is too low

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u/ywBBxNqW i7-2820QM - Quadro 2000M Oct 21 '21

I wonder if that would affect the output of the engine and result in a negative feedback loop.

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u/f0rcedinducti0n 5950X@4.65GHz 1.28 Vcore 64GB@4000MHz | Dark Hero | Strix 3090 Oct 21 '21

yes

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u/Neenchuh Oct 21 '21

good idea but due to the laws of thermodynamics it would be practically impossible for the fan to actually manage to cool down the gpu this way

8

u/ChocKake Laptop - 7700HQ | 1070 | 2x8GB | Bad Cooling :( Oct 21 '21

You’re thinking of a perpetual motion machine, a closed loop of energy. This has energy coming in your wall as electricity and out with your fans in the form of heat. The heat is already going into the Stirling engine, and that can be used as a fan to push more ambient heat out. This could definitely work

1

u/Neenchuh Oct 22 '21

Just look at the speed of the engine, it's too slow, the heat energy irradiating from the gpu is not enough to power a fan that can cool it. And if the fan were to somehow manage to cool it then the fan would slow down because it would receive less energy. you would have to find a stable point where the heat coming out of the gpu is the same as the heat being dispersed by the fan so that the system becomes stable and useful. And I'm not even sure if that exists at a comfortable temperature. Even if there is an external energy source the input energy to the fan is still too little. The only way this could work is if you used that same electricity to power the fan directly, which is already the technology used in computers.

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u/Essence1337 R7 5800X | GTX 1070 Ti Oct 21 '21

Not necessarily, if done correctly you can transfer the excess GPU heat out of your case making it basically an extra (albeit terrible) cooler

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u/Nurgus Linux - Ryzen 2700X - Vega 64 - Watercooled Oct 21 '21

If it's not consuming extra energy and it's reducing the temperature where it matters, can it really be "terrible"?

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u/Scotty_do Oct 21 '21

It's free money!

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u/The_Screeching_Bagel Oct 22 '21

I have seen that attempted actually! I have a picture somewhere

here

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u/minozemstan Oct 21 '21

Great, and now I want one...

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u/Fuehnix Oct 21 '21 edited Oct 21 '21

Only $40 on Amazon, I've been wanting one for a while, but I only recently pulled the trigger.

It's pretty cool for a desk toy. If your temps are above 50 C, you should be able to get some decent motion out of it. (This video is at 70 C)

This one is designed to work with low temps, or below 100 C, which makes it ideal for something like this.

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u/Few_Bag9809 Oct 21 '21

I had mine on my modem, loved the thing. Unfortunately can only get to run on top of my stove now.: (

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u/spokale Oct 21 '21

Might need to be greased

28

u/Fuehnix Oct 21 '21

They recommend using graphite powder instead of grease actually, but yeah, I think so too.

Actually, I just ordered some graphite powder for mine to reduce the squeaking. These things are supposed to be silent.

21

u/oNinjaDispatcho Ryzen 5 3600, RX 5700 XT Oct 21 '21

FYI most stores that sell door locks have graphite powder tubes in the same section, as they're used to lube keyholes.

11

u/Hero_of_Hyrule Oct 21 '21

Hobby stores often have it to for model cars

16

u/R3lay0 PC Master Race Oct 21 '21

Yeah I'm not gonna put graphite powder on something that goes into my PC

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u/Fuehnix Oct 21 '21

You know... You make a good point lol.

3

u/utkohoc Oct 22 '21

I wasn't sure if graphite powder was conductive so I googled. It.

Tldr. Graphite is very conductive.

2

u/Few_Bag9809 Oct 21 '21

I actually oiled mine when it started to slow down and stall. That was a mistake. Afterwards tried to clean it out and use graphite. Was also a mistake. I guess there was a little bit of oil left in the crevices I couldn't clean. The two lubricants morph together into some black sloppy mess. Hasn't worked properly sense.

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u/dallenzao Ryzen 9 5900x | RTX 3080 | 64GB RAM Oct 21 '21

You think it would work with a liquid cooled 3080?

2

u/Fuehnix Oct 21 '21

I read that you want about 20 C difference minimum to run the Stirling motor. If you're 20 degrees above ambient, then I think so.

Maybe you can set your radiator fans to run in quiet mode to raise your temperature lol.

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u/dallenzao Ryzen 9 5900x | RTX 3080 | 64GB RAM Oct 21 '21

Ye my card barely hits 40c, air is like 21c and fan speeds at like 1200rpm.

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u/Reichhardt Oct 21 '21

I was gonna build something like this too with the stirling engine powering the pump or sth stupid like that. There is a really cool steampunk in there somewhere.

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u/Fuehnix Oct 21 '21

Unfortunately, you'd never get enough power for the pump unless you had an external heat source. This is with 70 C GPU.

You could make it look like it was powering the pump though.

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u/Reichhardt Oct 21 '21

Really, the pump takes that much power? Edit: what if i put three engines over the radiator with fans pushing from below? (I understand that there is a limited amount of energy that is being emitted from the gpu and it doesnt become more just bc i harvest it somewhere else but otherwise its just gonna get shot out of the pc so.. using more of it should work)

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u/Fuehnix Oct 21 '21 edited Oct 21 '21

More like, this Stirling engine produces almost no power lol. I can stop it fairly easily with just a finger. For one like this, it's basically one of those perpetual motion machine desk toys. You can get more impressive ones that look like real engines, and they are powered by an oil candle, but they cost a lot more.

The practical Stirling engines in the real world are very large and bulky, and they require lots of heat. Their main competitive edge is their silence (this one is squeaky because it needs some lube, but generally, they are the quietest engines possible). They have Stirling radioisotope generators in submarines that use the heat of radioactive decay to power the sub.
They're also used in some church organs because they produce a steady flow of air to the instrument without producing any noise that interferes with the music, or any fumes that pollute to the building.

But for something this size and heat, it's just enough to keep it turning at a satisfying RPM indefinitely.

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u/Reichhardt Oct 21 '21

Yea, ik i read into it a lot back when lindybeige made his video abt it (not sure wether you know him, cool dude) but still i thought they could at least do.. something. I guess i ll have to start tanking my pc with oil then (i believe thats a gen 2 stirling engine). Looks cooler anyways but i hope my landlord doesnt come visit..

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u/Fuehnix Oct 21 '21

I think him and Tom Scott are the guys that gave me the idea lol.

Man, please post progress pics if you do build that. I don't want to crush your dreams, it sounds cool as hell. Just at some point, you gotta question the difficulty vs the novelty.

For something like I have, it was only $40 lol.

You could definitely integrate a nicer looking Stirling engine into a steampunk PC. I hope I inspired someone to do it, I'm too lazy/broke lol.

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u/Reichhardt Oct 21 '21

Yea, the price is why i havent done it, i am a student but i will have a job as of monday next week. My build is in a lian li O11 dynamic so i have plenty of space.. will post plans of it once i get around to doing it.

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u/TzunSu Oct 21 '21

Congrats on the new job!

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u/Reichhardt Oct 21 '21

Thanks :D

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u/hobokenbob hobokenbob Oct 21 '21

i;ve occasionally watched a lindybeige video. interesting topics. bit of a rambler.

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u/Reichhardt Oct 21 '21

100% agree with you but i do enjoy it.

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u/shrubs311 Ryzen 5 2600x|GTX 1060|16 GB 3200mhz Oct 21 '21

do all nuclear subs use stirling engines to power their systems? or is the stirling engine only part of their power output?

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u/Tactical_Moonstone R5 3600 4.2GHz 1.2375V | RTX 2080 | 2×(8+16)GB 3600MHz C16 Oct 21 '21

Nuclear subs do not use stirling engines for their systems because the reactors cannot be completely shut off, so for maximum silence operations it would be better to turn all the systems to the lowest capable and minimise noise.

Diesel subs can, and do use stirling engines because they can react the diesel with on-board oxidiser and then use the resultant heat to power the stirling engine. These can make a diesel sub even quieter than a nuclear sub, enabling some real jank strats like sneaking in to a carrier group and sinking the aircraft carrier before the covering ships know what is going on.

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u/shrubs311 Ryzen 5 2600x|GTX 1060|16 GB 3200mhz Oct 21 '21

interesting, thanks!

i only recently learned that subs are so sneaky nowadays that they've accidentally collided before not realizing the other is there. freaky stuff!

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u/TzunSu Oct 21 '21

Go read up on when the US rented a Swedish Gotland class sub using AIP sterling engines to try out their defensive capabilites VS the quietest subs. Quite a few "sunk" carriers.

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u/shrubs311 Ryzen 5 2600x|GTX 1060|16 GB 3200mhz Oct 21 '21

i think i vaguely knew about that. i heard the u.s did some wargames with its strike group (including the very expensive aircraft carriers) and 2 submarines from the ally countries in the wargames were so close that they literally could've sank the carrier were they an enemy. just goes to show how fragile ships can really be.

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u/TzunSu Oct 21 '21

The thing i'm talking about was one Gotland class, but rented for 1+1 years, they extended since they couldn't figure it out. They got far closer then that, within range of taking periscope pictures!

https://nationalinterest.org/blog/buzz/war-games-swedish-stealth-submarine-sank-us-aircraft-carrier-116216

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u/zzzxxx0110 Oct 21 '21

It is still really really difficult to sink an aircraft carrier with a non-nuclear AIP sub though, because even if you can make your engine work at very very quiet noise level, you will be getting far less power than a nuclear sub's reactor could output which means your tactical speed (the max speed you could sustain without making a lot more noise) is nowhere near the speed of a nuclear powered aircraft carrier and its battle group... And that gives you a lot of tactical challenges if you actually want to sink a carrier with a non-nuclear sub.

Source: I tried to do just that in Dangerous Waters with a Kilo class diesel electric sub and failed over and over again and eventually gave up :(

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u/space_keeper Oct 21 '21

I knew that submarines mainly use PWRs, but I didn't know about the diesel reactor stirling engines. Very cool bit of reading. Is the technology an extension of diesel catalytic oxidization that's used to treat exhaust gasses?

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u/Reichhardt Oct 21 '21

I realize how shitty this engine is now. I probably will have to build an 8 cylinder with oil burning and all that crap. But that ofc would be far from the elegance of the original plan making it kinda.. shit. Eh.

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u/ChrysisX i5-8600k | EVGA GTX 1080 ACX 3.0 SC Oct 21 '21

Yeah you'd have to get it started spinning yourself manually in this case too yeah?

I got a couple that don't work great lol. One which I put together myself so pretty sure I effed it up somewhere. Still really cool though

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u/TzunSu Oct 21 '21

Well the most common use of Stirling engines in subs today are the air-independent propulsion systems used on stuff like the Swedish Gotland class. No radioactivity needed.

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u/Tortenkopf X470 Taichi | 3900X | 64GB 3200 | RX5700 Oct 21 '21

The energy the engine extracts comes from a temperature gradient; the larger the gradient, the more energy the engine can extract. While lots of hot air flows out of the radiator, this air is much cooler than the (back of) the GPU. In other words: the temperature gradient at the radiator is very small, while at the GPU it is larger. Therefore, putting the engine on the radiator would have an adverse effect.

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u/Reichhardt Oct 21 '21

Still better than just dispelling the warm air .. i guess i could build something to make the upper plate cooler, like filling it with ice cubes every now and then with an alarm that sounds when the pump doesnt get sufficient power anymore?

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u/Tortenkopf X470 Taichi | 3900X | 64GB 3200 | RX5700 Oct 21 '21

Still better than just dispelling the warm air

What would be 'still better than just dispelling the warm air'? If you put the engine on the radiator, it will extract less heat and less energy than when you put it on the GPU directly. Therefore, by putting the engine on the GPU, there will be less hot air expelled than when you put it on the radiator.

i guess i could build something to make the upper plate cooler, like filling it with ice cubes every now and then with an alarm that sounds when the pump doesnt get sufficient power anymore

You could, but how would that improve the situation? And let me be extra clear: you can not power the pump this way. The engine can not even produce 1% of the power needed by the pump.

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u/Fuehnix Oct 21 '21

I don't think using more would work, at least not in a practical sense. The power of the Stirling engine comes from temperature differences. You can actually power it with a cup of ice, because of the difference between the room temperature and the ice.

Technically, the stirling engine would pump harder/faster as your radiator heats up from not having a pump, but the temps required to get the water pumping at a good rate would kill your components. You want a flame for what you're talking about.

I looked it up, and it seems you could build a pretty cool pump powered by some lantern candles though, as seen here in this video. It would be big, bulky, not very easy to build, and you'd have to buy candles regularly, but it would be cool as shit.

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u/Reichhardt Oct 21 '21 edited Oct 21 '21

I mean i dont have a problem with powering it with oil or sth or filling a reservoir for the top plate with ice and stuff. I know how a stirling engine works, i just never realized how weak it actually is. Some mechanical cooling system that is at least partially powered by heat has been in the back of my mind for a long time (not as a practical thing ofc but as you said: cool as shit :)) Edit: btw, a cooling pump takes abt 20-30 Watts so the heat output of a gpu should be enough with a good enough efficiency. I am a mechatronics student so i have the machinery i need to build shit i just have to figure out a way. Should be possibke though, especially whit a heat buffer like a plain water reservoir with a metal bottom plate to put on a gpu instead of its backplate...

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u/handsupdb R9 5900X | RX 5700 XT | O11D | Corsair Oct 21 '21

If you did that then what you'd be doing is overall the same principle as passive air cooling... But with more steps so it'll be much much less efficient.

One of the advantages (not the core advantage, but one of them) water cooling has is that you use some extra external energy to pump the mass of the water from CPU to RAD - just like how fans force convection.

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u/Sythe64 Oct 21 '21

Just put little fan blades on the flywheel and aim it at the ram.

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u/Aedaru Desktop Oct 21 '21

This looks like a stirling engine my old physics teacher had, you could run them with the heat of your palm

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u/MrStoneV Oct 21 '21

Im confused, so the GPU needs to be 70C warm to start the stirling engine? Did you test it with lower heat, but started it to spin with your hand to get away from the static friction?

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u/Fuehnix Oct 21 '21

It doesn't have to be 70 C, I don't know what the actual lower bound is. That would also be affected by the particular stirling engine you get and how it is lubricated.

You do have to start it spinning with your hand to start the process, but after that, it runs as long as the top and bottom plates have a sufficient temperature difference.

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u/MrStoneV Oct 21 '21

Oh now I understand why its such a silent engine then. Crazy, thanks for letting me learn something from your comments :)

Maybe I will get a stiriling one day, and put it on my GPU aswell haha

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u/scootzee i9-9900k | 2080 Ti | 64GB DDR4 3600MHz Oct 21 '21

The thermodynamics of that don’t check out, BUT, it could power small LED devices like a clock or temperature read-out!

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u/raytsou Oct 21 '21

Another issue is that sterling engines work by insulating the heat. The bigger the temperature difference, the more power it generates. So you're cooling the GPU from electricity generated by insulating the GPU, and with heat loss you end up never coming out on top...

At least according to some napkin math a friend and I did sometime ago while debating the possibility of a mining farm in a cold area with supplemental power from these

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u/Jam_Herobrine PC Master Race Oct 21 '21

You know I wonder how efficient it would be to gather the waste heat to generate power.

Of course they would be loss l, but your still getting useful work out of it so while not 100% efficient it might get something back.

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u/ethernown Oct 21 '21

An upper bound of the efficiency can be calculated pretty easily as 1- Tc/Th where Th is the temperature of the source (in this case the GPU) and Tc is the ambient temperature

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u/DarthPreator Oct 21 '21

That equation gives me ptsd

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u/Brockvegas72 Oct 21 '21

So if we assume the GPU is running at 90°C=363K, the ambient to be 23°C=296K, then we get Eff=1-(0.82)=0.18, or 18%. Probably not much you can do with that BUT run a small flywheel...

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u/Onairda Specs/Imgur here Oct 21 '21

Well, the question is 18% of what. Or in this case of how many watts.

A high end gpu can use over 300 W of power, and pretty much all of it becomes heat. Fans can run on just a couple of watts, with dual or triple fans consuming less than 10 W. That means that you could get around 54 W, or over 5 times the power you need.

Even taking into account that 18% is the theoretical maximum and that a real setup would be a less efficient, it seems it is theoretically possible to run a fan off of gpu heat. The numbers i use are the result of a 5 minutes google search, so they might not be the most accurate, but it seems that there is enough margin that it should not be a problem if they are not too far off.

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u/Tower21 thechickgeek Oct 21 '21

But that's the upper limit, getting there practically in the real world is a much more difficult problem to solve.

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u/Lontarus PC Master Race Oct 21 '21

Is it supposed to be calculated in kelvin or celsius tho? I get much better numbers where I can get 75% efficiency, so I would prefer doing my math with celsius.

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u/Brockvegas72 Oct 21 '21

It would be nice to get 75% efficiency! But generally in thermodynamics and related equations, we work in K (or another "absolute temperature" scale), because there are assumptions that when the temperature is 0, you cannot possibly lose any more thermal energy.

For example, imagine if you had your heat source at 20°C, and cold source at -20°C. Then you'd get an efficiency of 200% if you didn't convert from celcius!

If you want to see more details of this efficiency calc, check out Carnot's theorem).

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u/Lontarus PC Master Race Oct 21 '21

Maybe we can switch to do all thermodynamics math in celsius if we wanna break some laws of physics? Maybe thats the secret recipe for exploring distant galaxies?

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u/ethernown Oct 21 '21

It's thermodynamic temperature, so Kelvin

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u/vesko1241 R5 2600/RX580/16GBddr4/512GB_NVME Oct 21 '21

Replace the flywheel with a fan so it cools the RAM sticks lol.

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u/TechYeahTony Oct 21 '21

The resistance of the fan blades would probably stop it from spinning

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u/bastugubbar Ryzen 5 3600 x gtx 1060 6gb Oct 21 '21

Overclocking the GPU also increases performance of the RAM then.

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u/nater255 i7-12700K | RTX 3080 | 32GB DDR5 | Samsung G9 Oct 21 '21

So get more heat pumps, duh! /s

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u/silverstang07 Oct 21 '21

That's what I was thinking. Would be cool looking

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u/brunlar Oct 21 '21

But does your stirling engine have RGB?

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u/nutral 6600k/R9280X/EvolvITX Oct 21 '21

Even the bodyheat from your hand can power a stirling engine. So, no suprise that a GPU does.

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u/Catch_022 Oct 21 '21

It's cool but those fans are fantastic - what are they?

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u/Fuehnix Oct 21 '21

Corsair SP140 RGB white, and I have them plugged into a Corsair Core Commander Pro. All of the RGB here comes with the Corsair 7000x. I have some more RGB fans from my old build, but tbh, the corsair fans are so much nicer than generic fans, I left them out to not ruin the aesthetic.

I'll probably just buy more corsair fans.

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u/_Nameless_Nomad_ Oct 21 '21

This is the comment I was looking for.

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u/MeganeKoGekiRabu Oct 21 '21

MSI actually already presented this idea more than 10 years ago

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u/breeze-vain- Oct 21 '21

pc building level: MacGyver

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u/SpaceToaster Oct 21 '21

Physics question. We are turning heat energy here into kinetic energy. Is there a loss of heat because we are “doing something” with it or is the heat in the system constant due to the new friction introduced by the moving parts? In other words, does this have any cooling effect?

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u/Therearenosporks Oct 21 '21

Sorta, a small amount of heat energy is being converted to kinetic energy temporarily. However once the system reaches steady-state (the flywheel reaches a constant speed) the amount of work being done on the wheel will equal the loss due to friction (which is released as heat) so the overall temperature will be the same. Theoretically there will be an increase in the time it takes the system to heat up and cool down but it wouldn't be noticeable.

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u/BobRossButVaporwave Oct 21 '21

Unlimited crypto mining power!!! /s

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u/robotevil 5950x/3090 FE Oct 21 '21

Miners hate this one trick.

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u/SlipperyNoodle6 Oct 21 '21

Ok bro, that's brilliant

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u/bestonurever Oct 21 '21

Which corsair case is this guys?

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u/Fuehnix Oct 21 '21

Corsair 7000x RGB white. It's one of Corsair's newer cases that came out only several months ago. This video shows Jayztwocents going over the 7000D airflow in black. The difference between the airflow and the RGB version is just that the RGB version comes with nicer fans and an RGB hub, and one has mesh panels and the other has glass panel. You can buy the panels separately from the website if you decide to turn 7000x into a 7000d, or vice versa.

It was pricey, but sooooo nice. It looks way better in person. It has that "car dealership showroom" effect with the glass and lighting that makes the computer look a lot nicer, and the white makes the RGB a lot softer.

I just got it a few weeks ago.

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u/Fuehnix Oct 21 '21

Here is my PC progression picks, along with a time lapse of the Stirling engine chugging along http://imgur.com/a/gWGJC6g

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u/Fuehnix Oct 21 '21

Here is my PC progression picks, along with a time lapse of the Stirling engine chugging along http://imgur.com/a/gWGJC6g

2

u/tweakalicious Oct 21 '21

Woo boy. What you gonna do with all that raw torque?

2

u/ttv_CitrusBros Oct 21 '21

I got the KFC rig so it can cook my chicken

2

u/AdventurousChapter27 Oct 21 '21

lisa in this house we obey the laws of thermodynamics!!!!

2

u/Cat7o0 Oct 21 '21

Just make water cooling and make a massive Stirling engine and pump the heated water to the engine and power your computer using the engine

2

u/Gonemad79 Desktop Oct 21 '21

You could use the Stirling engine to pump coolant and make a closed loop of automatic temperature control that doesn't rely on the windows controller. And it uses wasted energy.

The hotter it gets, the faster the pump is turned.

A passive control loop is the most steampunk thing I could imagine this year.

2

u/Bigderp23 Didnt get the laptop, F Oct 21 '21

yeah that’s cool, BUT CAN THE STIRLING ENGINE POWER THE GPU?

2

u/Jesusthelord1357 i5-9300h/gtx1650/16gb Oct 21 '21

Laughs in 80° laptop temps

2

u/NerdyLittleVader2 Ryzen 5 2600 | RX 580 but not for long Oct 21 '21

Converting Heat into kinetic energy might actually help with temps too, if I'm not mistaken.

2

u/MikemkPK i5 750 8GB RAM | GTX 1070 8GB VRAM | 480GB SSD | 8T RAID Oct 21 '21

If you connect a fan to that, you'd have a self cooling GPU

2

u/HighOnTacos Oct 21 '21

Replace the wheel with a small fan and create passive airflow.

2

u/JZF629 Oct 22 '21

That’s why they sag! I get it now!

2

u/fastal_12147 i5-6500, GTX 1060 6G, 8GB RAM, 500W PSU Oct 22 '21

Considering you only need like 5 degrees of temperature change to run a Sterling engine, I'm assuming everyone can

2

u/asdfgdhtns Oct 22 '21

I went and claimed my free award just to give it to this post

2

u/Conscious_Board5376 Oct 22 '21

I always wanted to try one of those and see if it would work. You could use it to power a small fan to cool the GPU

6

u/Admirable_Buffalo_10 Oct 21 '21

why not change the engine rotor to a fan blade and you will have 100 percent free clean renewable cooling for your PC!

1

u/Malfoy27 Oct 21 '21

Wow this is on a whole another level 😂

1

u/admafa Oct 21 '21

Fuxkin sickkk!

1

u/Blake_S2k Oct 21 '21

Now fix your fan orientations/add more.

1

u/toxinliquid Oct 21 '21

Really cool idea

1

u/RANDOM_PLAYER64 5950x | RTX 3090 | 80GB 3933Mhz CL18 Oct 21 '21

Mine can (probably) boil water

1

u/[deleted] Oct 21 '21

This would be amazing if it powered a tiny generator and recharged your phone

1

u/DarksidePancakez Ryzen 2700 3.9ghz, 32gb RAM, x470, 2060 Super, 144hz Oct 21 '21

I was gonna do that once I made a GPU support. Looks good!

1

u/Ralph090 Oct 21 '21

I wonder if you could charge a phone with that...

(I doubt it given how low power those engines are, but I can dream, right?)

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1

u/TamsterYT Oct 21 '21

Use the power your gpu uses to power that wheel, then use the power the wheel creates to power your GPU

1

u/JoshTheTrucker HTPC Oct 21 '21

This is actuslly a really good test, and I should try it.

1

u/GoontenSlouch Oct 21 '21

Nice, I have one of those downstairs, ~ I think I have 4 types of Sterling Engines from Amazon, I don't think the candle powered ones will work on a GPU though...

1

u/Katahan Oct 21 '21

I had thought about wanting to do this for ages but I am trying to keep to small form factor discreet cases and pc storing. Why does this sound like a weird advert segment...

1

u/vagrantprodigy07 Oct 21 '21

I've been wanting a stirling engine for years. I really need to bite the bullet and just get one. They are so neat.

1

u/Sateyoup Oct 21 '21

It looks like hydro electric power generator

1

u/leafjerky Oct 21 '21

Ah, the $20 kit we all used in thermodynamics for our project

1

u/zoson imgur.com/TWxILkH Oct 21 '21

3d print a new wheel where the spokes are fan blades - turn that heat into a useful memory cooler for your system ram!

1

u/VatroxPlays Ryzen 2600 | RX 580 | 16GB DDR4 Oct 21 '21

Using heat as a way to power fans... GENIUS

1

u/Mriv10 Oct 21 '21

I was thinking about doing this the other day.

1

u/JoeskiX Oct 21 '21

now slap a fan on the Stirling engine to assist the cases air flow.

1

u/euphorichardstyle PC Master Race Oct 21 '21

Why tho

1

u/DerKuro Oct 21 '21

Can? Yes! Does? No!

1

u/BananaOverdose Ryzen 7 3800x | 2060 6GB | 32 GB RAM Oct 21 '21

What a bizarre contraction but I'll allow it.

1

u/__T0MMY__ Oct 21 '21

I'm still rocking an R9 390x so yeah of course; I also don't have to heat my room

1

u/iPayne Oct 21 '21

What fans are those?

1

u/Ragnar702 Oct 21 '21

Best $20 i ever spent on Amazon.

1

u/xartle 3900X/64GB DDR4 3200/3080 Ti Oct 21 '21

I wonder how many Stirling engines it would take to actually cool a system back to near ambient.

1

u/zacap Oct 21 '21

Mount a small propeller on the wheel shaft and you've got a self regulated cooling system!

1

u/Artin-X86 Oct 21 '21

Love ur case and build,but that sterling engine seems a little bit noisy!🤔

2

u/Fuehnix Oct 21 '21

Yeah, I just bought some graphite for it to make it quieter. Normally they are silent

1

u/OG_Kush_Master KamikazeNerdNL Oct 21 '21

A Sterling engine in a custom Steampunk PC build would be incredibly cool. They're so fascinating.

1

u/TheAutomator312 Oct 21 '21

Outstanding!

1

u/spacemansir RYZEN 3600x | 2060 SUPER Oct 21 '21

Bruh, I need to pull this off now!! Insane!

1

u/TheMoogy Oct 21 '21

Feed all the heat into one engine and hook it up to a generator to turn some of it back into electricity.

1

u/xFinman RTX 3080, R9 5900x, 32GB 3200MHz Oct 21 '21

now make that top spinning part a fan and you've got a ram cooler

1

u/BallisticThundr Oct 21 '21

Your hand can power a Stirling engine

1

u/Plus_Professor_1923 Oct 21 '21

OK THIS IS SICK....AND THIS IS 50% OFF ON AMAZON RIGHT NOW...FYI..JUST ORDERED ONE for $20 BUCKS. OP - killer idea

2

u/Fuehnix Oct 21 '21

Careful about which one you buy. The first one I bought was silver and a piece of crap. I returned it and got this one for $40.

If it doesn't work for you, it means the machine is crappily made. The physics still works.

Best of luck though! Hope you got a good deal

1

u/Plus_Professor_1923 Oct 21 '21

it was a low temp version on Amazon for 40, saw your comment and htink i got the same one but we shall see. Same day delivery, will check back in shortly. haha

edit: was this the one? https://www.amazon.com/gp/product/B077LHS81K/ref=ppx\_yo\_dt\_b\_asin\_title\_o00\_s00?ie=UTF8&th=1

2

u/Fuehnix Oct 21 '21

Both the crap one and the good one were options from Sunnytech. They have similar ratings and look identical. https://www.amazon.com/dp/B008JOKO1O/ref=cm_sw_r_apan_glt_fabc_1C9ZAQ3DHVEPRKAZN0S8?_encoding=UTF8&psc=1

1

u/csharp-sucks Linux Oct 21 '21

Connect stirling to a fan for self cooling system.

1

u/[deleted] Oct 21 '21

[deleted]

1

u/Fuehnix Oct 21 '21

lol sorry. There's a nice steady time lapse and some PC progression pics in this link. http://imgur.com/a/gWGJC6g

1

u/HereIsACasualAsker PC Master Race Oct 21 '21

thanks!, now i want a fucking stirling engine.

1

u/Killerbrownies997 Oct 21 '21

Put a fan on the engine and we’ll come full circle

1

u/ProfessorPwnage Oct 21 '21

Hey, I have that case!

1

u/danz409 Oct 21 '21

maybe replace the flywheel with a fan/hub and direct air to the nearest exit.

1

u/DaileyWithBailey Oct 21 '21

Op just unlocked an entirely new customization style for the entire community. Watch this blow up.

1

u/gt097b Oct 21 '21

Always an upvote for Stirling motors. My dad used to work on an collaboration project between Ford and Philips to those engineered for use in road cars

1

u/K2-236b Oct 21 '21

i wonder can we use case fans powered by psus and use their motor in doing creative stuff like a table fan or this project will it be fine?

1

u/Unbendium Oct 21 '21

Build enough of these and you could mine crypto AND coal.

1

u/astronaut9525 PC Master Race Ryzen 5 3600x, R5 240, 8 gb ram 3200mhz Oct 21 '21

beesh even my ssd can power a sterling engine

1

u/ttoften Oct 21 '21

That's hawt

1

u/Difficult_Magician20 Oct 21 '21

If you were to use a gpu say as a means to move one thing from other, for example fecal matter from point A the anus to point B my mouth. How many rotations would it take to get to the center of a tootsie pop. Pls help

1

u/stikstonks13 Ryzen 5 3600 | RTX 2080 Super | B550 Aorus pro AC | 16gb RAM Oct 21 '21

The all new nvidia sterling

1

u/Phaylevyce 9900k | 2080Ti | 32gb Oct 21 '21

Those poor poor cords

1

u/Blebubb Oct 21 '21

Three cables to power one GPU. We are living strange times.