“Jumping droplets” will help cool modern electronics

The problem of the heat voltage in the modern computer industry is acute: despite the decrease in the size of the transistor, the complexity of processors and graphic nuclei is constantly growing, and along with clock frequencies, which is poured into the corresponding increase in heat release. A single -legged video cards are found on the market a rather serious level on the market, and the bulky COO firmly occupied the place of air cooers in enthusiast systems. But technology «Jumping Droplets» (jumping droplets), as its developers promise, can significantly increase the effectiveness of cooling systems, especially in the event of point areas of strong heating.

No matter how romantic it sounds, but the new method works in about the same way as the Cicadas protect their fragile wings from getting wet. The fact is that with sufficient hydrophobicity (the property of repel moisture) the surface combination of two tiny drops of water generates enough energy in order for the resulting larger drop to break away from this surface. «Cicata effect» known for a long time and is well described in science, but it was possible to apply it for cooling microelectronics for the first time. As found in the joint work of Intel and Duke University, this property can also be used to cool modern microchips. The trajectory of drops of drops can be such that their final destination will be a surface requiring active cooling. The main difficulty in the practical implementation of the principle is the search for materials with the desired degree of hydrophobis.

Technically, this somewhat resembles an evaporative camera that works, however, «vice versa». The conditional floor of this chamber is made of hydrophobic material, and the ceiling — On the contrary, it is a porous sponge. Hot regions provoke the evaporation of the fluid located in the ceiling structures, towards the floor, where it condenses into drops. There are more drops, they begin to unite — and jump at the expense of the above «Cicata effect» to the ceiling, after which the cycle is repeated, and such a camera will work regardless of the direction of the gravity and orientation vector in space, it is only important to divide into «floor» And «ceiling». Such a heating system system is more effective than traditional ones, since it works not only on the plane, but also in space, developers say. Moreover, it, unlike thermoelectric, does not require energy supply from outside. The head of the team Professor Chen Chuanhua (Chuan-Hua Chen) is sure that soon the new technology will be able to standardize, and from this point to the release of the first efficient cooling systems on a new principle — one step.


  • Hardocp.com

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