Dr. Yehia Khalil

Visiting Research Fellow

Dr. Khalil’s research interests include green energy systems, environmental risk assessment, life cycle assessment (LCA) of composite materials, and waste heat harvesting technologies. Because of his specialized expertise in probabilistic risk assessment (PRA), Dr. Khalil extended the scope of his research interests to cover cyber and physical security vulnerability assessment of critical infrastructures.

Dr. Yehia Khalil joined Yale University as a faculty member in 1993 where he taught the core courses in the undergraduate chemical engineering and environmental engineering curricula at Yale School of Engineering & Applied Science (SEAS). As a Senior Research Scholar at Yale School of Forestry & Environmental Studies (F&ES), Dr. Khalil advised students’ research in the environmental management graduate degree program and taught graduate courses entitled Environmental Risk Assessment (ERA), Environmental Control Technologies (ECT). Dr. Khalil is also an affiliated faculty member at Yale Climate and Energy Institute (YCEI) and Yale College where he taught Green Energy Systems (GES) courses and was the champion of the online engineering courses at Yale College summer program. Before his teaching career at Yale University, Dr. Khalil was a Technical fellow at the Center for Advanced Engineering Studies at the Massachusetts Institute of Technology and taught nuclear risk assessment and nuclear reactors safety at MIT.

Dr. Khalil is the current Operating Agent of the Hydrogen Safety Task of the International Energy Agency (IEA), the editor-in-chief for the IEA Hydrogen Safety Journal, an editor of the Process Safety & Environmental Protection (PSEP) Journal, the European Federation of Chemical Engineering, Elsevier Publisher, and a senior editor of the Journal of Environmental Engineering & Ecological Science, Herbert Publications Ltd., Bedfordshire, UK.

Dr. Khalil is a recipient of several awards and scientific recognitions, among which is the Senior Moulton Medal from the Institution of Chemical Engineers (IChemE) in the United Kingdom, the Yale F. K. Weyerhaeuser Faculty Research Grant award, the Société Française D’énergie Nucléaire recognition plaque, the Shota Rustaveli National Science Foundation in Tbilisi, Georgia, the Chinese Nuclear Society (CNS), and the Japan Society of Mechanical Engineers (JSME).  Dr Khalil is a recipient of Harvard University’s academic achievement award in sustainability. He is also a recipient of the American Institute of Chemical Engineers (AIChE) award for dedicated leadership as Yale Faculty Advisor for the AIChE Student Chapter. Dr. Khalil has six patents, patent applications, and filed over 100 invention disclosures in the engineering field.

Dr. Khalil earned Nucl. Eng. and M.S. degrees in Nuclear Engineering from the Massachusetts Institute of Technology (MIT), M.S.C.E.P in Chemical Engineering from MIT School of Chemical Engineering Practice, and M.S. in Management Science and Engineering from Stanford University, California, USA. Dr. Khalil earned a Master degree (MLA) in Sustainability and Environmental Management from Harvard University, Cambridge, Massachusetts, USA. He earned his Ph.D. in chemical engineering from the University of Connecticut at Storrs and Sc.D. in management science from the school of Management at University of New Haven in Connecticut, USA. He conducted post-doctoral research in chemical engineering at Yale School of Engineering & Applied Science and in management at Yale School of Management (SOM).

Selected Recent Publications

Khalil, Y.F. (2019). Sustainability assessment of solvolysis using supercritical fluids for carbon fiber reinforced polymers waste management. Sustainable Production and Consumption, 17, 74–84.

Khalil, Y.F. (2018). Science-based framework for ensuring safe use of hydrogen as an energy carrier and an emission-free transportation fuel. Journal of Process Safety and Environmental Protection, 117, 326-340.


Khalil, Y.F. (2018). Comparative environmental and human health evaluations of thermolysis and solvolysis recycling technologies of carbon fiber reinforced polymer waste. Journal of Waste Management, 76, 767-778.


Khalil, Y.F. (2017). A probabilistic visual flowcharting-based model of consequence assessment of fire and explosion events involving leaks of flammable gases. Journal of loss prevention in the process industries, 50, 190-204.

Khalil, Y.F. (2017). Eco-efficient lightweight carbon-fiber reinforced polymer for environmentally greener commercial aviation industry. Sustainable Production and Consumption, 12, 16-26.

Khalil, Y.F. (2016). Risk assessment and safety analysis for commercial nuclear reactors. Chapter 19, 637-653, in Nuclear Engineering Handbook, Second Edition, Taylor & Francis Group, CRC Press, USA.

Khalil, Y.F. (2016). A novel probabilistically-timed dynamic model for physical security attack scenarios on critical infrastructures. Journal of Process Safety and environmental Protection (PSEP), 102, 473-484.

Khalil, Y.F. (2016). Experimental determination of dust cloud combustion parameters of α-AlH3 powder in its charged and fully discharged states for H2 storage applications. Journal of Loss Prevention in the Process Industries, 44, 334-346.

Khalil, Y.F. (2015). Risk quantification framework of hydride-based hydrogen storage systems for light-duty vehicles. Journal of Loss Prevention in the Process Industries, 38, 187-198.

Boo, C., Khalil, Y.F., and Elimelech, M. (2015). Performance evaluation of trimethylamine– carbon dioxide thermolytic draw solution for engineered osmosis. J. Membrane Science, 473, 302-309.

Khalil, Y.F. (2014). Dust cloud combustion characterization of a mixture of LiBH4 destabilized with MgH2 for reversible H2 storage in mobile applications. International Journal of Hydrogen Energy, 39, 16347-16361.

Khalil, Y.F. et al. (2013). Experimental and theoretical investigations for mitigatingNaAlH4 reactivity risks during postulated accident scenarios involving exposure to air or water. Process Safety and Environmental Protection, 91, 463–475.

Khalil, Y.F. (2013). Experimental investigation of the complex deflagration phenomena of hybrid mixtures of activated carbon dust/hydrogen/air. Journal of Loss Prevention in the Process Industries, 26, 1027-1038.

Khalil, Y.F. (2013). Experimental determination of dust cloud deflagration parameters of selected hydrogen storage materials: Complex metal hydrides, chemical hydrides, and adsorbents. Journal of Loss Prevention in the Process Industries, 26, 96-103.

Additional research activities and extended list of publications can be found using the following URLs:






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