Automobiles, appliances, power plants, factories and electrical utilities all waste one thing: heat. More specifically, they produce heat as a by-product of their normal operations, but that heat is just dispersed into the air instead of being put to use. Researchers from Oregon State University, however, have created a prototype system that harnesses waste heat to (rather ironically) cool the device that’s creating the heat in the first place. While it isn’t the first system to do so, it is claimed to be unusually efficient ... and, it can generate electricity.
Read the full article: 'Thermally activated cooling system' puts waste heat to use