Dr. Ji Yongming is a professor in Qingdao University of Technology, China. He currently serves as the deputy director for Department of Building Environment and Energy Application Engineering. He received Master and PhD degrees from Dalian University of Technology, China. His research interests include multi-source heat pump technologies, district energy planning, building air tightness, performance simulation of zero-energy buildings, AI-based HVAC system operation optimization and fault detection. In these fields, he has undertaken or participated in over 20 national scientific research projects. He has published more than 50 high-level academic papers in SCI, EI and other journals, obtained or applied for over 30 domestic and foreign invention patents, and compiled one national standard, four provincial and group standards, and one monograph. Besides, he is a frequent reviewer for international journals, e.g. Sustainable Cities and Society, Energy, Energy and Environment, Renewable Energy, Journal of Thermal Engineering, etc.