The Rail Transportation Program is collaborating with APS LABS at Michigan Tech to provide an Independent Review of a proposed High Pressure Heat Exchanger (HiP-HEX) System for use on rail locomotives. A group of Mechanical Engineering faculty, staff, and students are engaged in a theoretical review of the waste energy available at the engine manifold and how much of that energy can be captured and converted to electrical energy to help drive a locomotive, without adversely affecting engine performance.