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.
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