Zhongjie Huan is a Full Professor in the Department of Mechanical and Mechatronics Engineering, Tshwane University of Technology. He received his B.Sc. from the Department of Physics, Shandong Normal University, his M.Sc. from the Department of Engineering Fluid Dynamics, Tianjin University, and earned a Ph.D. in Thermal Engineering from Tianjin University. His field of expertise and research specialization is natural sciences and engineering with a focus on refrigeration and thermal engineering, energy efficiency, energy management, energy auditing, and M&V. In his professional career, he has received numerous recognition awards, including two Third Prizes of Science and Technology Achievement in Ministry Levels in China and one Award of International Engineering Technology (IET). He is also actively engaged in professional activities, such as an international working party member on the International Code of Quick Frozen Foods Processing, sponsored by the FAO, an editorial member for some scientific journals, a reviewer for journal and conference papers, and a technical advisor and auditor for professional bodies.