Saving earth or being socially resposible isn’t probably high on the list of priorities for those who drink a lot of beer but here’s a kegerator that might just change how refrigerators are built with no compressor.
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.
via green blog