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, ... Read moreSolar 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. Dr. Akhilesh Arora is an Assistant Professor in the Department of Mechanical Engineering at Delhi Technological University (erstwhile Delhi College of Engineering) Delhi since 2004. Prior to joining Delhi College of Engineering, he worked at College of Military Engineering, Pune in the capacity of Lecturer for two years. He has also served as Associate professor and Head of Mechanical and Automation Engineering Department at Indira Gandhi Delhi Technical University of Women, Delhi during the period from 2012 to 2014. He obtained his Ph.D. and Master’s Degree from the Indian Institute of Technology, Delhi in the year 2010 and 1997 respectively. His research areas are Refrigeration and Air Conditioning, Thermal Science and Engineering; Energy Conservation and Waste Heat Recovery. He has published number of research papers in International and national journals. Dr. Arora is an active member of ASHRAE and ISHRAE. Dr. Paramjit Singh Bilga is a Professor in the Department of Mechanical Engineering at Guru Nanak Dev Engineering College, Ludhiana, an Autonomous and Oldest Government Aided Engineering College of Punjab, affiliated to I. K. Gujral Punjab Technical University, Jalandhar - Kapurthala, Punjab, India. He completed his B.E. (Mechanical) from Panjab University, Chandigarh in 1989, M.Tech (Energy Studies) and Ph.D. from Centre for Energy Studies, Indian Institute of Technology, Delhi in 1994 and 2009 respectively. He has twenty-five years of teaching and research experience in the field of design, analysis, modeling, simulation and optimization of thermal energy, environment and safety engineering systems. He has done the project and research work during his graduation as well as post-graduation programs in the area of Refrigeration and Air Conditioning and is teaching this subject. Show Less