Dr. S. C. Kaushik is Professor and former Head in Centre for Energy Studies at Indian Institute of Technology (IIT), Delhi. He received his Ph.D. in Plasma Science from IIT Delhi after his distinguished First Position in Master"s degree in Science (Electronics) from Meerut University. His research fields of activities include Thermal Science and Engineering; Energy Conservation & Heat Recovery, Solar Refrigeration & Air conditioning, Solar Architecture, and Thermal Storage & Power Generation. He has made significant contributions in these fields as evident by his above 400 research publications in Journals of repute at national and international levels. He is a pioneer researcher on Exergy Analysis and Finite time thermodynamics of Energy Systems at National & International level and a leading expert on Alternative Refrigeration and Air Conditioning Technologies. He has co-authored/ edited several books on Energy related topics in his academic career. He has visited several countries as visiting scientist/ fellow and invited speaker in USA, Canada, France, Germany, Australia, Netherland, Mexico, Saudi Arabia and Ethopia.