Dr. Kilkis received his Ph.D. degree in Mechanical Engineering with high honors from Middle East Technical University. He graduated in 1972 with honors from the prestigious von Karman Institute for Fluid Dynamics in Belgium- a NATO Research Center. Dr. Kilkis has been working on heat transfer, unified heat transfer theory, high-performance buildings, quantum mechanics, fluid dynamics, heat pumps, combined heat and power, modeling, simulation, and computer aided design of heating and air-conditioning systems since 1971. In total, he has published more than 270 papers in several journals and proceedings on a large variety of topics, and has several patents pending on green buildings and low-exergy HVAC systems. Dr. Kilkis is the member of ASHRAE Building Performance Metrics Steering Committee and has been elevated to Fellow Grade in 2003. He was the invited editor of UNESCO Int. Journal of Global Energy Issues and he is the editorial board member of International Journal of Green Energy. He is the North America Liaison of the Low Exergy Buildings International Network and the founder of Exergy Analysis for Sustainable Buildings Technical Group in ASHRAE.