Some weeks ago, we saw the post on eco-friendly beer for most beer-drinking lovers to try out. But what is beer if it is not cold? Well, if you think placing it in the standard refrigerators is enough, check out this eco-friendly device that has been christened as the Kegerator. Now you can say that you are really going eco-friendly and socially responsible!
Instead of relying on gasses similar to Freon, a process which can only be performed with energy-intensive compressors and heating coils, the new kegerators will rely on something called magnetic field refrigeration. In magnetic field refrigeration, electricity is introduced to a polarpolymer, causing the usually disordered molecules of the polarpolymer to become highly ordered. As this happens, heat is dispersed and the material grows cold. When the electricity is switched off this process reverses itself. And this doesn’t just mean more fun for the college crowd: someday Zhang predicts this technology will be used in everything from self-cooling gear for firefighters to chilling your CPU.