High temperature materials for energy generation Yasser Gowayed Department of Polymer & Fiber Engineering November 2014.

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Presentation transcript:

High temperature materials for energy generation Yasser Gowayed Department of Polymer & Fiber Engineering November 2014

Temperature requirements for turbine engines Pratt & Whitney: Public Domain as defined by ITAR 22 C.F.R. Chapter I, Subchapter M, Part

S. R. Greene, et al., ORNL/TM-2010/199 Temperature requirements for nuclear reactors

Benefits of high temperature Nuclear reactors Superior economics Limit severe accidents Higher thermal efficiency and process heat Better non-proliferation and waste characteristics Turbine engines Less cooling requirements Improved efficiency Reduced fuel burn and emissions Higher speed Reduced weight High power density (high temperature and pressure)

Ceramic matrix composites Wadley, et al., 2013

phys.org Current activities in industry GE aviation built two facilities in DE and NC (opened last month) to embed ceramic composites in CFM’s LEAP turbofan engines: 2016 for the Airbus A320neo 2017 for the Boeing 737max

Long research experience at AU Fiber architecture Microstructural analysis Porosity Processing parameters NDE Thermal diffusivity Acoustic Emission Microwave CT and  CT Damage Micro-level stresses Crack initiation Damage progression Effect of porosity Oxidation Fatigue Creep Mechanical and Thermal Yasser Gowayed and Larry Barowski Yasser GowayedNovember 2014

Mass production Production flow Human interface Impact on environment Waste Time constraints Automation Challenges Yasser GowayedNovember 2014 Manufacturing Large parts Joining Porosity Cracks Environmental barrier coatings Cost Production speed Business and life Economics Ethics Effect of speed Noise levels safety Materials Hybrid materials Interface compatibility Effect of radiation Corrosion, oxidation Fatigue, creep Hermiticity

Current sources of research funding Government agencies Aerospace industry Yasser GowayedNovember 2014

Multidisciplinary research group at AU College of Engineering Polymer and Fiber Mechanical Materials Industrial Chemical Aerospace College of Science and Math Chemistry & Biochemistry Mathematics & Statistics Physics College of Business College of Liberal arts Economics Philosophy School of kinesiology School of Industrial + Graphic Design