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Kronos cooling run at 8.5kilo-volts to cool a device 25 degrees Celsius - Image courtesy
Kronos Advanced Technologies claims that's the way we're headed

Lately, heatsinks and traditional fans have become so large that they are beginning to be obstructive and are sometimes too heavy. This is an issue on the graphics processor front in many ways, as there isn't enough room for large heatsinks, yet GPU thermal exceeds that of high-speed CPUs.

A company called Kronos Advanced Technologies is working on a method of removing heat from devices such as CPUs by using ionic discharge to create a fluid motion of air. This technology has been around for a few years and is used in products such as ionic air filters, which have no moving parts but still move volumes of air and create quite a strong breeze. The same concept is being applied to micro processor cooling.

Despite the advancement however, the volume of air moved over the CPU core is still small because the core surface area is small. Heatsinks are used to increase surface area of the hot surface, so that when air is moved over the fins, more heat can transfer to the air. The Kronos' device will attempt to remove hot air away from the processor core directly without the need for heatsinks. With this method, the velocity of air being moved needs to be extremely fast in order to compensate for the lack of surface area -- and speed is something that ionic air "movers" lack.

Right now, Kronos is still working on prototypes, which it claims are scalable from very small micro coolers to large scale sizes. Power requirements also appear to be quite steep at this point in time. One of Kronos' demonstration shows a heated area being reduced from roughly 50C to 25C using an ionic cooler, but the power supply required around 8.5kV, or 8500 volts, to stay stable.

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RE: 2.5kV?
By DangerIsGo on 1/4/2007 9:24:59 PM , Rating: 2
ground potential - and that is most likely what you were when you touched that conductor (I assume it was one of those demonstration thingies that make your hair stand up and the like).

There is a reason why 50V (AC @50Hz) is considered the safety threshold for humans. For DC, it is 120V.

Dont you mean positive +?

And isnt it AC = 120V and DC = 50V?

RE: 2.5kV?
By Griswold on 1/5/07, Rating: 0
RE: 2.5kV?
By masher2 (blog) on 1/5/2007 6:26:54 AM , Rating: 4
> "Thus, to get away from such demonstration without burn marks, you need to stand on a insulated platform, while touching the high voltage potential."

No and no. You're probably thinking of a Tesla coil demonstration, which generates not only an extremely high voltage, but a sizeable current as well. However, there are plenty of high voltage sources which are safe, grounded or not, such as a Van der Graaf generator. Even simple static electricty sparks can go to 10kV or more....ever seen anyone die from them?

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