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ChronWeasely t1_iyj6vqa wrote

Reply to comment by [deleted] in Better Than Fans? New 'AirJet' Chip Promises To Overhaul Laptop Cooling by Avieshek

"No."

My least favorite way to start a reply. Especially when wrong. Which you are.

Also electricity directly into cold? Sounds like a violation of the first law of thermodynamics. Some heat must be dumped somewhere.

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Samarium149 t1_iyj9bpn wrote

I mean, technically you can convert electricity into "cold" using extremely precise laser frequencies and atomic resonances to convert thermal energies into photonic light.

Cooling a CPU using this method is probably overkill.

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CygnusX-1-2112b t1_iyjddvd wrote

Unless you're trying to overclock a pentium duocore to 10ghz without giving our solar system a second star.

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flyingtrucky t1_iykhsjv wrote

Peltier coolers have been a thing in missiles since the 70s. They aren't particularly efficient but they're lightweight.

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Neo_Techni t1_iykcg21 wrote

> Sounds like a violation of the first law of thermodynamics. Some heat must be dumped somewhere.

No. I thought of that too, but that comes from the generation/transmission of electricity.

Also I had it mixed up with peltier coolers
https://lairdthermal.com/products/thermoelectric-cooler-modules

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Dash_Lambda t1_iykmp4a wrote

Are you saying Peltier coolers remove heat by generating electricity? Because they absolutely can if you apply a temperature difference across them, but to force the heat to move they actually have to convert some electricity into heat in the process.

That's the difference between thermoelectric coolers and thermoelectric generators, one uses electrical energy to move heat and the other turns the movement of heat into electrical energy.

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Neo_Techni t1_iylhnjd wrote

> Are you saying Peltier coolers remove heat by generating electricity?

No, I said the opposite. That by pumping electricity into them they remove heat.

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