She has expertise in adaptive and optimal control, multi-agent systems, artificial intelligence and methods of distributed optimization with strong building and heating, ventilation, and air conditioning (HVAC) system control application experience. At Pacific Northwest National Laboratory, she is responsible for development of advanced control technologies applicable to buildings and HVAC systems, power grid controls, and building to grid interaction.
He received a doctorate in computer science at the University of Tennessee in 2009, master’s in computer systems and software design, and his bachelor’s with a double major in computer science and mathematics with physics from Jacksonville State University. His research spans government-scale database and management systems, graphical user interface design, medical software used for surgery, gesture recognition, graph-theoretic analysis, optimization, automation, systems genetic research, magnetic resonance imaging, image processing, artificial intelligence, supercomputing, and energy-efficient buildings. He currently serves at Oak Ridge National Laboratory’s Building Technologies Research & Integration Center (BTRIC) as a subprogram manager for software tools and models with oversight of projects, involving websites, web services, databases, simulation engine development, visual analytics, supercomputing, and artificial intelligence. He has lead creation of the world’s most accurate method for calibrating a simulation model to measured data, fastest building model creator, fastest buildings simulator, and largest archive of simulated building data. He is a joint faculty member at the University of Tennessee’s Electrical Engineering and Computer Science Department, and an active member of American Society of Heating, Refrigerating and Air-Conditioning Engineers and Institute of Electrical and Electronics Engineers.
He is a research scientist from Idaho National Laboratory (INL) with extensive experience in the fields of materials electrochemistry as applied to reactive and refractory metals, process metallurgy, synthesis and characterization of high-temperature metals and materials, energy-efficient manufacturing processes, and materials recycling. While working at Bhabha Atomic Research Center, India, he developed an entirely new (molten salt based) process flow-sheet for the production of vanadium metal with a view to fabricate a self-powered beta detector. He also worked on the development of a new high-temperature process for the production of commercial-grade zirconia and silica powders from the indigenously available zircon mineral. His other projects have been aimed at recovering valuable materials from waste, secondary resources, and lean ore bodies. His team could successfully develop a technology for the conversion of Zr-2.5Nb alloy scrap to high purity zirconium crystal bar by van Arkel de Boer process. This technology can be adopted to successfully transform the alloy scrap into high purity zirconium crystal bar, a metal of significant importance to the nuclear energy program. At the University of Cambridge, he worked on the process optimization studies pertaining to the preparation of titanium metal and its alloys by a novel molten salt electrochemical process. He developed a preparative process for titanium-lanthanum alloy from their mixed oxides. At the Massachusetts Institute of Technology, he worked on a high-temperature electrochemical process to generate oxygen from the lunar regolith. This is one of the two technologies shortlisted by NASA for its eventual deployment to produce breathable oxygen from in situ (lunar) resources. At INL, the scientific underpinning of his research activities has been to study the behavior of metals and materials under a given set of conditions. His diverse research pursuits include materials electrochemistry, energy-efficient manufacturing processes, and materials recycling.
His research focuses on experimental and analytical studies to improve the energy performance of building envelopes, equipment, and systems. Some of his recent work at Oak Ridge National Laboratory includes energy efficiency enhancement of Army huts, thermal performance evaluation of various radiant barrier systems, lifetime energy and environmental impact of building insulation materials, identify and evaluate performance of lower-global warming potential alternative refrigerants for various applications and operating conditions, study suitability of procedures for evaluating performance of appliances and heating, ventilation, and air conditioning systems, and performance evaluation of thermochromic and electrochromic paints for buildings applications. He is also developing web-based energy-savings calculation to estimate energy and cost savings potential from improving building envelope airtightness. He earned a master’s and doctorate in mechanical engineering from Iowa State University. He is an American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) certified Building Energy Modeling Professional (BEMP) and member of ASHRAE, American Society of Mechanical Engineers (ASME), and Tau Beta Pi.
His research focuses on ferroic functional materials and their applications in clean energy and energy efficiency applications. Current research directions include caloric materials, such as elastocaloric materials for heating, ventilation, and air conditioning, refrigeration; application and magnetocaloric materials for gas liquefaction; advanced soft magnetic materials, such as high silicon electrical steel for inductors, transformers, and motors; permanent magnetic materials, such as Mn-based, rare-earth-free permanent magnetic materials and rare-earth permanent magnets with high toughness; high temperature anti-ferroelectric capacitor materials; and ferroelastic shape memory alloys. The overall materials development strategy is theory guided high throughput experimentation, utilizing DFT-based computation to identify alloy composition space and combinatorial bulk synthesis and scanning materials characterization techniques to discover, and down-select candidate compositions. He holds joint positions with Ames Laboratory and the Materials Science and Engineering Department at Iowa State University.
She is a senior scientist, director of the Building Technology and Urban Systems Division, and director of the Demand Response Research Center conducting research related to demand-response load control, open standards, building energy use, sensors, controls, information systems, simulation, and end-use analysis. She is the lead principal investigator for OpenADR automated demand response technology, the most prominent open standard for communication between electricity providers and customers, used by more than 5,000 residential, commercial, and industrial customers across 10 countries. She has authored over 170 papers on efficiency and demand response.