Hieta - LightweightingHiETA are currently collaboratively developing an innovative waste heat recovery system based on an Inverted Brayton Cycle, and are utilising the benefits AM offers in order to maximise the system efficiency and create the best packaging solution for the system. The system will be fully bench tested by mid 2017. HiETA have also developed and tested parts for a Scroll engine waste heat recovery system running with high pressure nitrogen working fluid.