Heat exchanger (IMAGE) Chalmers University of Technology Caption Heat exchanger with exhaust gas preheater, developed according to the new concept. Image by GKN Aerospace. Credit GKN Aerospace. Usage Restrictions For editorial use only, with attribution to the creator. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.