OAK RIDGE, Tennessee, Feb. 14 (TNSres) -- The U.S. Department of Energy's Oak Ridge National Laboratory issued the following news release: Scientists at the U.S. Department of Energy's Oak Ridge National Laboratory have begun operating a unique system designed to enable a variety of testing to characterize the performance of an advanced heat transfer fluid for renewable energy. Known as the Facility to Alleviate Salt Technology Risks, or FASTR, the system's inaugural run evaluated the viabilit  more