This book includes high-quality articles within the framework of several projects and international collaborations, among them University of Applied Sciences Bremen and Gdańsk University of Technology. Some of the research presented in these articles was presented on international symposia and conferences, e.g. the XXII International Symposium Research-Education-Technology and 4th International Conference Low Temperature and Waste Heat Use on 24th to 25th September 2015 in Bremen. The articles cover current research of material science, mechanical engineering, energy technologies and nanofluids to supplement literature in these fields.