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Seminar: Principles of Hot Section Cooling Design

Bruce Varney, Rolls Royce
Friday, November 15, 2019, 3:00 pm to 4:00 pm
Aerospace Research Center
Room 100
2300 W Case Rd
Columbus, OH 43235

This seminar will also be livestreamed to Scott Laboratory, room E525, 201 W 19th Ave, Columbus, OH 43210.

Abstract
The drive for fuel efficiency has pushed OEMs to continually increase temperatures in the hot section of gas turbine engines. These increased temperatures are now well above the capabilities of the materials used in the hot section, requiring the use of methods for cooling hot section components. Any cooling air used reduces the overall efficiency of the cycle, so a great deal of effort is expended to design component cooling with a minimum use of air while still achieving component temperatures which are suitable for meeting goals for life.

The principles of viscous flow and heat transfer are key tools in designing cooled components. A review of the need for cooling, general scientific principles, and publicly available information will be presented to help OSU engineering students connect their classroom experience with real-world application.

About the Speaker
Bruce Varney is a Senior Technical Specialist, Turbine Component Engineering, for the Rolls-Royce Corporation. He joined Rolls-Royce in 2002 and has worked in the hot section since, including combustion and turbine projects and military, civil, and R&T.

Bruce is currently working in core engineering: advanced cooling systems (dual wall), advanced materials (CMCs), and high leverage fleet issues (safety and field issues). His main area of focus is understanding and preventing blockage in hot section components. He is the global owner of hot section blockage research for Rolls-Royce, coordinating across all hot section contaminant research.

His professional involvement includes:

ASME Turbo Expo Session Organizer/Chair
Reviews for various professional journals
Recently joined Central Indiana ASME committee

Bruce holds bachelor's and master's degrees in Aeronautical Engineering from Purdue University. Prior to working at Rolls-Royce, he spent one year at GE Aircraft Engines during a college co-op, six years at Cummins Engine Company working on diesel engine fuel systems (stress and performance), and about fifteen months running a one-person IT and Engineering consulting firm. 

Hosted by Dr. Jeffrey Bons, Professor of Mechanical and Aerospace Engineering.