Dr. Ibrahim Dincer is professor of Mechanical Engineering at the Ontario Tech. University and visiting professor at Yildiz Technical University. He has authored numerous books and book chapters, and many refereed journal and conference papers. He has chaired many national and international conferences, symposia, workshops, and technical meetings. He has also delivered many plenary, keynote and invited lectures. He is an active member of various international scientific organizations and societies, and serves as editor in chief, associate editor, regional editor, and editorial board member for various prestigious international journals. He is a recipient of several research, teaching and service awards, including the Premier?s Research Excellence Award in Ontario, Canada. For the past seven years in a row he has been recognized by Thomson Reuters as one of The Most Influential Scientific Minds in Engineering and one of the Most Highly Cited Researchers. Marc A. Rosen is a professor at Ontario Tech University (formally University of Ontario Institute of Technology) in Oshawa, Canada, where he served as founding Dean of the Faculty of Engineering and Applied Science. He is also the Editor-in-Chief of the International Journal of Energy and Environmental Engineering and the founding Editor-in-Chief of Sustainability. He has written numerous books and journal articles. Professor Rosen received the President's Award from the Canadian Society for Mechanical Engineering in 2012. He is an active teacher and researcher in sustainable energy, environmental impact of energy and industrial systems, and energy technology (including heat transfer and recovery, renewable energy and efficiency improvement). His work on exergy methods in applied thermodynamics has been pioneering and led to many informative and useful findings. He has carried out research on linkages between thermodynamics and environmental impact and ecology. Much of his research has been carried out for industry.