He is a research and development engineer in the Experiment Analysis Group of Nuclear Science and Technology at Idaho National Laboratory. In his present position, he leads in-pile instrumentation development for transient irradiation testing and is a principal investigator for transient testing of metallic fuels. He is an experiment safety and performance analyst for experiments at the Advanced Test Reactor and the Transient Reactor Test Facility. In addition, he is a technical lead for measurement of thermophysical properties of nuclear materials. He has expertise in energy transport in condensed matter, liquids, gases, and material interfaces. He has significant experience in advanced measurements of thermophysical properties of nuclear materials using multi-scaled approaches, including nano-scale measurements using atomic force microscopy, laser-based microscopic photothermal methods, and bench-scale high temperature thermal conductivity techniques. He also has expertise in numerical and commercial finite element analysis. He holds bachelor’s and master’s degrees from Utah State University and a joint doctorate from Utah State University and Universite de Reims Champagne-Ardenne. He is a member of American Nuclear Society (ANS) and American Society of Mechanical Engineers. He was the founding president of the ANS Student Chapter at Utah State University and currently serves as an Executive Committee member for the Material Science and Technology Division of ANS.
He received his bachelor's in chemistry from Reed College in 1990, and his doctorate in chemistry from Harvard University in 1996. He specializes in multi-disciplinary problem solving in the physical sciences and their corresponding engineering disciplines. Over his 22-year research and development (R&D) career, he has developed expertise in physical chemistry, chemical kinetics, atmospheric chemistry, instrumentation, electronics (digital, analog, power, and RF), spectroscopic sensing, lasers, fiber optics and wave guides, classical optics, electro-optics, electromagnetics, electromechanical systems, heat transfer, materials science, mechanical engineering, manufacturing processes, and renewable energy technologies.
He has won four R&D 100 Awards, holds numerous patents, has 10 active licenses on his inventions, and given many invited talks on the subject of serial innovation. In 2015, he was selected by the U.S. Department of Energy as its Inaugural SunShot Innovator in Residence. He invented the Radical-Ion Flow Battery under the SunShot Innovator in Residence Program to address the need for low-cost, highly scalable electrochemical grid storage, and the performance limitations of prior art battery chemistries in this demanding application. His current research portfolio is focused on electrochemical grid storage, the elimination of rare-earth magnets in wind turbines, and semiconductor thermal management (power electronics, CPUs, GPUs).
He is a senior research fellow for Energy Conversion Engineering at National Energy Technology Laboratory with more than 30 years of experience in energy systems research, including all types of energy conversion devices. He has lead or directed projects investigating turbine technologies, fuel cells, carbon dioxide capture, combustion, heat transfer, coal/biomass gasification, fuel processing, sensors, controls, magnetohydrodynamics, and geothermal energy. In addition to conducting his own research, his responsibilities include developing and executing cooperative research agreements with private industry and academia and evaluating proposed concepts related to energy conversion. He serves as an associate editor for the American Institute of Aeronautics and Astronautics Journal of Propulsion and Power. He received his doctorate in mechanical engineering from Purdue University, master’s in mechanical engineering, and bachelor’s in physics and mechanical engineering from Clarkson University.
He is responsible for the development of science-based simulations for use in accelerating energy technology development. He was architect of the widely used, open-source multiphase CFD code, known as Multiphase Flow with Interphase eXchanges (MFIX), and led the development of software for linking process- and device-scale simulations and the C3M chemical kinetics software. As a fellow of the American Academy of Chemical Engineers, he specializes in multiphase flow, computational fluid dynamics (CFD), fluidization, and various energy processes. He is a founding technical director of National Energy Technology Laboratory’s Carbon Capture Simulation Initiative (CCSI). He has received numerous awards, such as the Energy Secretary’s Achievement Honor Award and American Institute of Chemical Engineers (AIChE) Fluidization Process Recognition Award. His many publications address topics, such as gasifier advanced simulation models; multiphase hydrodynamics of gas-solids flow; modeling coal gasification processes; hydrodynamics of particle segregation in fluidized beds; and simulation of granular layer inversion in liquid fluidized beds. He has a bachelor’s in chemical engineering from the Indian Institute of Technology (BHU) Varanasi, and a master’s and doctorate from the Illinois Institute of Technology in Chicago.
He is a human factors engineer in the Human Factors, Controls, and Statistics Department with 37 years of experience in various human factors engineering roles in heavy industry, defense, nuclear, and commercial organizations. His primary focus is on making work more effective, efficient, and satisfying through the design of human-centered tools, methods, and work environments. He has worked at Idaho National Laboratory since 2010. His current work includes researching and developing methods and procedures to integrate human factors principles in the systems engineering process for advanced and modernized nuclear power stations with an emphasis on human-system interfaces and control room design and information visualization. He has a master’s degree in human computer interaction from the University of South Africa and associate degrees in human computer interaction and industrial engineering.
He is a research scientist specializing in crosscutting applications and advancement of sensor research to enable resilient real-time measurement and control of process variables within the nuclear and other critical industries. His research expertise includes applications of pattern recognition and machine learning techniques, instrumentation and controls, data analytics, battery modeling, risk and reliability, digital signal processing, acoustic telemetry, diagnosis/prognosis using wavelets and empirical mode decomposition, time series analysis, power management, wireless communication protocols, and wireless sensor networks. He has authored 51 peer-reviewed publications and one book chapter, and two U.S. patent applications filed. To date, he was involved in 13 research projects and has been the principal investigator for eight. He serves as a reviewer for the Institute of Electrical and Electronics Engineers (IEEE) Transactions on Image Processing, Energy Conversion, Industrial Informatics, Industrial Applications, Power Delivery, Systems, Machine and Cybernetics, Instrumentation and Measurement, and the American Nuclear Society (ANS) Transactions on Nuclear Technology. He serves as an external reviewer for U.S. Department of Energy’s Office of Science and Office of Nuclear Energy. Since 2009, he has been section editor for the Journal of Pattern Recognition Research. Since 2015, he has served as an elected member of the ANS Human Factors, Instrumentation, and Controls Division and the American Society of Mechanical Engineers Nondestructive Prognostics and Diagnostic Division since 2016.
He is a staff research scientist working in the Nuclear System Design and Analysis Division at Idaho National Laboratory (INL). He has expertise in heat transfer, fluid mechanics, thermal design, thermodynamics and nuclear safety analyses. Over the last few years, he has been researching high temperature heat exchanger design and optimization, system integration and power conversion systems, and safety and reliability for Advanced Reactor Concepts, and also has extensive experience in the design and construction of large-scale experimental systems for nuclear and thermal-hydraulic research. He has more than 12 years of research and development experience in nuclear/thermal engineering and has been involved in several academic, industrial, and cross-discipline national laboratory research projects. He is currently working to develop a new multi-loop, multi-fluid advanced test facility designed to examine thermal hydraulic and materials issues associated with advanced nuclear reactor technologies. He has authored two books; contributed chapters to technical books on advanced reactors, thermal systems and process heat transfer; published over 100 peer-reviewed publications; and served as the INL lead for numerous partnerships. He holds an adjunct faculty appointment in the Department of Mechanical, Aerospace, and Nuclear Engineering at Rensselaer Polytechnic Institute. He obtained his bachelor’s in mechanical engineering with concentration in robotics and controls from Wilkes University in Pennsylvania, a master’s degree in nuclear engineering with a minor in mechanical engineering from Oregon State University, a master’s degree in engineering management from University of Idaho, and doctorate in nuclear engineering from University of Idaho.
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