Jim Sorokes

James M. “Jim” Sorokes is a Principal Engineer with Siemens GP O&G (formerly Dresser-Rand) with more than 40 years of experience in the turbomachinery industry. Jim first joined Dresser-Clark after graduating from St. Bonaventure University in 1976. He spent 28 years in the Aerodynamics Group, became the Supervisor of Aerodynamics in 1984 and was promoted to Manager of Aero/Thermo Design Engineering in 2001. While in the Aerodynamics Group, his primary responsibilities included the development, design, and analysis of all aerodynamic components of centrifugal compressors. In 2004, Jim was named Manager of Development Engineering whereupon he became involved in all aspects of new product development and product upgrades. In 2005, Jim was promoted to principal engineer responsible for various projects related to compressor development and testing. He is also heavily involved in mentoring and training in the field of aerodynamic design, analysis and testing.

Jim is a member of ASME and the ASME Turbomachinery Committee. He has authored or co-authored more than 50 technical papers and has instructed seminars and tutorials at Texas A&M and Dresser-Rand. He currently holds several U.S. patents and has other patents pending. He was elected an ASME Fellow in 2008 and was also selected as a Dresser-Rand Engineering Fellow in 2015.

Mark Sandberg

Sandberg is the principal of Sandberg Turbomachinery Consulting, LLC. Before forming this consulting practice in 2016, he was a Consulting Machinery Engineer with Chevron Energy Technology Company in Houston, Texas for more than fifteen years. Prior to joining Chevron, he was employed by ARCO, Petro-Marine Engineering, and The Dow Chemical Company. During his sixteen years at ARCO, he was involved with a number of gas turbine driven compressors, both internationally and on the North Slope of Alaska. Mark has more than 40 years of varied experience in the process industries and has been involved with the design, manufacture, testing, and installation of several small to large gas turbine driven centrifugal compressor trains worldwide. Mr. Sandberg has B.S.M.E. and M.S. (Mechanical Engineering) degrees from the University of Illinois at Urbana-Champaign, is a registered Professional Engineer in the State of Texas, an Emeritus Member of the Texas A&M Turbomachinery Advisory Committee, a member of AIAA and a Fellow Member of ASME.

Dr. Jeff Moore

Dr. Jeffrey Moore is an Institute Engineer in the Machinery Section at Southwest Research Institute in San Antonio, TX. He holds a B.S., M.S., and Ph.D. in Mechanical Engineering from Texas A&M University. His professional experience over the last 27 years includes engineering and management responsibilities related to centrifugal compressors and gas turbines at Solar Turbines Inc. in San Diego, CA, Dresser-Rand in Olean, NY, and Southwest Research Institute in San Antonio, TX. His interests include advanced power cycles and compression methods, rotordynamics, seals and bearings, computational fluid dynamics, finite element analysis, machine design, controls and aerodynamics. He has authored over 40 technical papers related to turbomachinery and has two patents issued and two pending. Dr. Moore has held positions as the Vanguard Chair of the Structures and Dynamics Committee and Chair of Oil and Gas Committee for IGTI Turbo Expo. He has also served as the Associate Editor for the Journal of Tribology and a member of the IGTI SCO2 Committee, Turbomachinery Symposium Advisory Committee, the IFToMM International Rotordynamics Conference Committee, and the API 616 and 684 Task Forces.

Jigger Jumonville

Jumonville Engineering