Mehmet Kanolu is Professor of Mechanical Engineering at University of Gaziantep. He received his B.S. in mechanical engineering from Istanbul Technical University and his M.S. and Ph.D. in mechanical engineering from University of Nevada, Reno. His research areas include renewable energy systems, energy efficiency, refrigeration systems, gas liquefaction, hydrogen production and liquefaction, geothermal energy, and cogeneration. He is the author or coauthor of dozens of jouri?nal and conference papers. Dr. Kanolu has taught courses at University of Nevada, Reno, University of Ontario Institute of Technology, American University of Sharjah, and Unii?versity of Gaziantep. He is coauthor of the books Refrigeration Systems and Applications (2nd ed., Wiley, 2010), Efficiency Evaluation of Energy Systems (Springer, 2012), and Thermodynamics: An Engineering Approach (9th ed., McGraw-Hill, 2019). Dr. Kanolu has served as an instructor in certified energy manager traini?ing programs and as an expert for the United Nations Development Programme (UNDP) for renewable energy and energy efficiency projects. He instructed numerous training courses and gave lectures and presentations on renewable energy systems and energy efficiency. He has also served as advisor for state research funding organizations and industrial companies.