Seyfettin C. Gulen
JOHN GÜLEN is a senior principal engineer and a distinguished engineer and scientist in the Engineering Technology Group of Bechtel Infrastructure and Power, Inc., located in Reston, VA. Previously, Dr. Gülen was a principal engineer in General Electric’s Power Systems Division (later GE Energy) in Schenectady, NY. At Bechtel, Dr. Gülen is responsible for new technology assessment (e.g., supercritical CO2, CSP, and energy storage), steam and gas turbine performance, operability and risk analysis, turbo-machinery system design, analysis and optimization. Early in his career, Dr. Gülen worked in ESPC, Inc., focusing on transient modeling of the novel Cascaded Humidified Advanced Turbine (CHAT) cycle and the data analysis of the Compressed-Air Energy Storage (CAES) plant in McIntosh, AL. Between 1996 and 2000, Dr. Gülen worked in Thermoflow, Inc., in Massachusetts on the development of industry-leading heat balance, plant cost, and performance monitoring software such as GTPRO, ThermoFlex, and PEACE. Upon joining GE in 2000, Dr. Gülen worked in a variety of roles with increasing responsibilities in various GE Energy organizations. He made significant contributions to New Product Initiation Tollgates 1-3 of 109FB-SS combined cycle (CC) power plant with A15 HEAT™ Steam Turbine, Baglan Bay 109H-SS CC Power Plant Characterization Test in 2003, IGCC 207FB NPI TG1-3 system design and performance modeling. Dr. Gülen is an ASME Fellow. He earned his Ph.D. in mechanical engineering from Rensselaer Polytechnic Institute in Troy, NY. He has not previously served on an Academies’ committee.
ALLISTER JAMES is the senior expert for materials at Siemens Energy Inc., where he works with the Additive Manufacturing Materials team. Previously at Siemens, Dr. James was the manufacturing lead for oxide-oxide ceramic matrix composites; the materials lead for the Advanced Hydrogen Turbine Program, and the group leader for superalloys. Prior to joining Siemens he was the program manager for the development of the alloy RR1000 at Rolls-Royce Aerospace in the United Kingdom. At Siemens Energy, Dr. James has led the Superalloys Group with responsibility for the validation, manufacture, and service support of alloys for hot section turbine components. His current interests are focused on the development additively manufactured turbine components using selective laser melting. At Rolls-Royce Dr James was responsible for the development of RR1000, an alloy for compressor and disc applications. He continues to support the manufacture of discs and drums for Rolls-Royce aero-derivative engines for Siemens. He has been awarded 40 patents in the field of materials and manufacturing. He earned his Ph.D. in materials from the University of Birmingham, United Kingdom. He has not previously served on an Academies’ committee.
Timothy C. Lieuwen
TIMOTHY C. LIEUWEN, NAE, serves as executive director of the Strategic Energy at the Institute at Georgia Technology. He is also a Regents’ Professor and the David S. Lewis, Jr. Chair in the School of Aerospace Engineering. He is also founder and chief technology officer of TurbineLogic, an analytics firm working in the gas turbine industry. Dr. Lieuwen is an international authority on gas turbine technologies, both from a research and development perspective and from a field/operational perspective. He has authored or edited four books, including the textbook Unsteady Combustor Physics. He has also authored 350 other publications and received four patents, all of which are licensed to the gas turbine industry. He is editor-in-chief of the Aerospace Industries Association (AIAA) Progress book series. He is also past chair of the Combustion, Fuels, and Emissions technical committee of American Society of Mechanical Engineers (ASME) and has served as associate editor of Combustion Science and Technology, Proceedings of the Combustion Institute, and AIAA Journal of Propulsion and Power. He is a fellow of ASME and AIAA, and a recipient of the AIAA Lawrence Sperry Award, ASME’s George Westinghouse Gold Medal, National Science Foundation CAREER Award, and various best paper awards. Board positions include appointment by the Secretary of Energy to the National Petroleum Counsel, board of governors of Oak Ridge National Lab, and board member of the ASME International Gas Turbine Institute. He has also served on a variety of federal review and advisory committees. He holds a Ph.D. in mechanical engineering from Georgia Tech. He has served on the Academies’ Review of NASA Test Flight Capabilities and the Decadal Survey of Aeronautics.
MICHAEL J. MALONEY, NAE, is the director of the Alloy and Coating Material and Manufacturing Process Development Group at Pratt & Whitney Aircraft Engines. Previously Dr. Maloney was manager of the Advanced Coatings Development Group and before that a senior engineer. At Pratt & Whitney, Dr. Maloney has led the development, implementation, manufacturing support and field support of turbine engine coating systems. The coating systems consist of oxidation resistant metallic coatings, thermal barrier coatings, wear resistant coatings, and abradable seal coatings. Dr. Maloney has also led the development, implementation, manufacturing support, and field service support of nickel, cobalt, titanium, steel and aluminum alloys used throughout the gas turbine engine. Primary areas of research and development have consisted of ceramic thermal barrier coatings and metallic oxidation and corrosion resistant coatings. These technologies are now utilized in the hot section of the new generation of advanced commercial and military gas turbine engines. He is a member of the Connecticut Academy of Science and Engineering. He has been granted 44 U.S. patents in the area of materials and manufacturing processes relating to gas turbine engines. He earned his Ph.D. in metallurgy with a minor in ceramics from the Massachusetts Institute of Technology. He has not previously served on an Academies committee.
PARVIZ MOIN, NAS/NAE, is the Franklin P. and Caroline M. Johnson Professor of Mechanical Engineering and the Director of the Center for Turbulence Research (CTR) at Stanford University. Established in 1987, CTR is devoted to fundamental studies of multi-physics turbulent flows, and is widely recognized as the international focal point for turbulence research, attracting diverse groups of researchers from engineering, mathematics and physics. Dr. Moin pioneered the use of Direct Numerical Simulation and Large Eddy Simulation techniques for the study of turbulence physics, control, and modeling of fluid mechanics, and has written widely on the structure of turbulent shear flows. His current research interests include the interaction of turbulent flows and shock waves; aerodynamic noise; hydro-acoustics; aero-optics; combustion; numerical analysis; turbulence control; large eddy simulation; and parallel computing. Dr. Moin is the co-editor of the Annual Review of Fluid Mechanics and associate editor of the Journal of Computational Physics. He is the recipient of NASA's Exceptional Scientific Achievement Medal, the American Institute of Aeronautics and Astronautics (AIAA)’s Lawrence Sperry Award, American Physical Society’s Fluid Dynamics Prize, AIAA Fluid Dynamics Award, and the NASA Outstanding Leadership Medal. He was honored with an Einstein Professorship by the Chinese Academy of Sciences in 2009, and he was inducted to the Royal Spanish Academy of Engineering in 2014. He is a fellow of the American Physical Society and the AIAA, as well as a member of the, American Academy of Arts and Sciences Dr. Moin received a Ph.D. in mechanical engineering from Stanford University. He served as a former chair of the Engineering Sciences Section of the National Academy of Sciences and the Aeronautics and Space Engineering Board.
Karen A. Thole
KAREN A. THOLE is a professor of mechanical engineering at the Pennsylvania State University. Dr. Thole’s scholarship in research has been focused on experimental fluid mechanics and heat transfer, particularly as applied to developing new cooling methods for gas turbine components. More recently, she has used advanced manufacturing methods to further develop new cooling methods for turbine airfoils. She founded two experimental research laboratories at Pennsylvania State University: the Experimental and Computational Convection Lab (ExCCL) and the Steady Thermal Aero Research Turbine (START) Lab, with both being selected as centers of excellence for one of the major gas turbine manufacturers. She has published nearly 200 archival journal papers and conference proceedings and holds three patents. Many of the cooling technologies she researched are now used on the engines that power the Joint Strike Fighter and commercial jets. She has served as the chair of the board of directors for the International Gas Turbine Institute of the American Society of Mechanical Engineers (ASME), chair of the ASME Energy Conversion and Storage Segment, and a member of the NASA Advisory Council’s Aeronautics Committee. Dr. Thole was a recipient of a National Science Foundation Career Award, was recognized by the White House as a 2011 Champion of Change in STEM, and as a Society of Women Engineers’ Distinguished Engineering Educator. She also received ASME’s George Westinghouse Gold Medal for her work in power generation and the ASME’s Edwin F. Church award for her contributions to mechanical engineering education. She holds a Ph.D. in mechanical engineering from the University of Texas, Austin. She has served on the Academies’ Committee on Propulsion and Energy Systems to Reduce Commercial Aviation Carbon Emissions.
FREDERIC VILLENEUVE is head of Digital Innovations within the Siemens Power and Gas Product Research and Development (R&D) business segment. He is in charge of the R&D digitalization strategy, and he leads a portfolio owner of digital solutions for power systems based on machine learning and data science. He has been with Siemens for more than 10 years, starting as a probabilistic design engineer where he developed for Siemens the Gas Turbine Technology Portfolio Optimization framework, served as team lead to develop a gas turbine group focused on advanced methods for thermo-mechanical analysis, and managed the Aerodynamics and Methods group. In this responsibility, he led the portfolio of new technologies to improve the aerodynamics performance of the next generation of Siemens gas turbines. More recently, Dr. Villeneuve was the product owner of the next generation gas turbine design environment at Siemens, where he developed a gas turbine design platform enabling shorter design life cycle through design data, standardized design processes, and overall system management. He is a recipient of the George Westinghouse Silver Medal Achievement Award for distinguished service in the power field of mechanical engineering from the American Society of Mechanical Engineers (ASME). He has also received the Council of Outstanding Young Engineer Award from Georgia Tech. He has a Ph.D. in aerospace engineering from Georgia Institute of Technology. He has not previously served on an Academies’ committee.
Charles H. Ward
CHARLES H. WARD is chief of the Manufacturing and Industrial Technologies Division at the U.S. Air Force’s Air Force Research Laboratory in the Materials and Manufacturing Directorate. He is also an adjunct faculty member of materials engineering at the University of Dayton and editor-in-chief of the Integrating Materials and Manufacturing Innovation journal. Previously, Dr. Ward led the efforts by the Materials and Manufacturing Directorate in integrated computational materials science and engineering, and he was co-chair of the Materials Genome Initiative Subcommittee under the National Science and Technology Council. He has also served as chief of the Metals, Ceramics, and Nondestructive Evaluation Division of the Materials and Manufacturing Directorate, staff officer to the Assistant Secretary of the Air Force for Acquisition, and Air Force liaison for materials research and development in Europe. He has served as manager for the Air Force's basic research program in metals and as technology maturation manager on the F-35 propulsion program. His past research studied the microstructure-property relationships in titanium and titanium aluminide alloys. More recently, he has focused on efforts to build a materials data infrastructure and model-based definitions of materials and processes. He is a fellow of ASM International. He received his Ph.D. in materials science and engineering from Carnegie Mellon University. He has not previously served on an Academies’ committee.
BERNHARD WINKELMANN is director of Technology and Gas Turbine New Product Development at Solar Turbines, Incorporated. Previously, Mr. Winkelman served in leadership roles concerning strategic business initiatives within the Oil and Gas and Customer Services organizations at Solar Turbines. He has led research and development, engineering, manufacturing, and testing of various turbomachinery products. Currently, Mr. Winkelmann is the executive sponsor for the Solar Turbines–Penn State University Center of Excellence for Gas Turbines, which is in its first year has already commissioned several gas turbine-related research projects in combustion, heat transfer, aero-acoustics, and additive manufacturing. Mr. Winkelmann has also served as executive chairman for the International Gas Turbine Institute of the American Society of Mechanical Engineers. He earned his M.S. in mechanical engineering, turbomachinery, and design from the University of Applied Sciences in Bochum, Germany. He has not previously served on an Academies’ committee.