Praveen Kumar is a research scientist at Aramco Research Center, Detroit, and is responsible for utilizing 1-D system-level analysis to develop advanced engine system technologies. He joined Aramco in January 2015. Previously, he worked as an engine performance analyst at John Deere for 3 years. He holds a B.Tech in Aerospace Engineering (2007) from the Indian Institute of Technology Kanpur and a PhD degree in Mechanical Engineering (2012) from Iowa State University. His specialties include air system development, engine-vehicle co-simulation, system-level powertrain modeling, battery modeling, and thermal-fluid systems.
Rafael Lago Sari received his first M.S. from the Federal University of Rio Grande do Sul. Later, he received an M.S. degree and Ph.D. in Mechanical Engineering from the Polytechnic University of Valencia. He is currently a laboratory scientist at Aramco Americas, developing his research activities in the framework of engine combustion, system, and vehicle-level analysis for conventional and low-carbon fuels. During the last few years, his investigations have been focused on low-temperature combustion, hydrogen, and alternatives for transport decarbonization. In particular, he has performed extensive research work on the use of a high-efficiency premixed combustion strategy using single or two fuels with different autoignition characteristics in CI engines. Dr. Rafael was a visiting researcher at the Combustion Engines division at Lund University and is also part of the editorial board of Results in Engineering Journal and Frontiers.