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[tweaktown] MSI employs Stirling Engine Theory - Page 3

post #21 of 47
That is so cool.
MSI FTW.
And guys, as it gets hotter fan spins faster......
    
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post #22 of 47
Quote:
Originally Posted by Sparhawk View Post
Hey, it may be only saving 4W but do you see any cables? nope, cuts down on clutter a bit that way.

If my PC could use its heat to power anything that would be pretty cool, although it does heat my room already.
How is adding something that is much larger saving on clutter?

It is going to be inefficient just due to thermodynamics... you can't get free work.
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post #23 of 47
i think this is awesome, i helped a friend build a candle powered sterling engine for a project and it wasn't very complex at all, this could work
    
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post #24 of 47
Stirling engines work on a temperature difference. They are also very efficient. This is a good idea to use normally wasted heat within a PC to do something. Maybe this isn't currently practical, but some day it may be. Congrats to MSI on being innovative.
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post #25 of 47
what the he11 are you people talking about?
this is for newbs, and for newbs on a whole new level
maybe im just dumb, but how is this supposed to work? the fan which is heat powered,is supposed to COOL the heatsink? which in turn provides IT with power?
basically, this is as pointless as blowing air in the direction of the wind
    
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post #26 of 47
Quote:
Originally Posted by Marager View Post
what the he11 are you people talking about?
this is for newbs, and for newbs on a whole new level
maybe im just dumb, but how is this supposed to work? the fan which is heat powered,is supposed to COOL the heatsink? which in turn provides IT with power?
basically, this is as pointless as blowing air in the direction of the wind
You really dont know what ur talking about
    
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post #27 of 47
ok so the hotter it gets the more the fan spins..which then cools it...what about when it gets cool to the point where not enough heat is produced to make the fan spin any more. LOL.
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post #28 of 47
Quote:
Originally Posted by arekieh View Post
You really dont know what ur talking about
He's right... the most cooling "work" you can get from the engine is the difference in heat minus some inefficency. If you want more work done, then the source would have to be hotter.... defeating your cooling. You would be able to get more effective cooling with a HS and powered fan.
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post #29 of 47
My brother has something like this on his wood stove, its a fan that pushes the hot air around the room and it works due to pizoelectric stuff. The heat causes the metal to expand and compress what I can only guess is quartz crystal, or something along those lines and it pushes a decent amount of air around.
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post #30 of 47
Quote:
Originally Posted by DuckieHo View Post
He's right... the most cooling "work" you can get from the engine is the difference in heat minus some inefficency. If you want more work done, then the source would have to be hotter.... defeating your cooling. You would be able to get more effective cooling with a HS and powered fan.
The amount of power that can be harvested is not limited directly by the temperature difference, it is limited by the power dissipated by whatever its cooling. The cooler will use some of the energy, and the entire heatsink + northbridge (that's what its cooling right?) system will reach an equilibrium at a temperature that is lower than what it would be normally.

Regardless, this contains a passive heatsink that the engine blows air over. It will necessarily work better than the passive heatsink alone. What is the downside?
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