Cooling is a constant design challenge. To meet that challenge, researchers at Bell Labs/Lucent are experimenting with a nanostructured surface that reduces viscous drag on cooling fluid. The intention is to use billions of silicon posts to aid in transferring heat from the silicon surface to the liquid coolant. Each post has a water-repellent, Teflonlike surface, so fluids flow without wetting. When researchers apply a small electric current to the posts, the droplets on the surface slick down and wet the surface. This technology allows researchers to study the details of fluid flow and heat transfer across such superhydrophobic surfaces. The nanograss also provides a tenfold increase in the effective surface area of a flat silicon surface, which also facilitates heat transfer.
Engineers at Fuel Cell Energy have found a way to take advantage of a side reaction, unique to their carbonate fuel cell that has nothing to do with energy production, as a potential, cost-effective solution to capturing carbon from fossil fuel power plants.
To get to a trillion sensors in the IoT that we all look forward to, there are many challenges to commercialization that still remain, including interoperability, the lack of standards, and the issue of security, to name a few.
This is part one of an article discussing the University of Washington’s nationally ranked FSAE electric car (eCar) and combustible car (cCar). Stay tuned for part two, tomorrow, which will discuss the four unique PCBs used in both the eCar and cCars.
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