Woodruff School of Mechanical Engineering

NRE/MP Seminar

Nuclear & Radiological Engineering and Medical Physics Programs


The Potential Impact of Advanced Cladding Materials on Reactivity Initiated Accidents in Light Water Reactors




Pennsylvania State University


Thursday, October 5, 2017 at 11:00:00 AM


Boggs Building, Room ROOM 3-47


Dr Kotlyar


The U.S. Department of Energy has been developing nuclear fuel and cladding candidates with potentially enhanced accident tolerance since the aftermath of the Tōhoku earthquake in 2011. These candidate materials must maintain or improve reactor performance and safety characteristics during normal operation and design basis accidents, while enhancing performance in beyond design basis accidents. This talk presents recent fuel safety research related to reactivity initiated accidents with advanced cladding materials. The discussion focuses on reactor physics, thermal hydraulics, and pellet-cladding mechanical interaction issues. Key findings are presented from the following papers: 1. Brown, N. R., Wysocki, A. J., Terrani, K. A., Xu, K. G., Wachs, D. M., 2017. Annals of Nuclear Energy 99, pp. 353-365. 2. Cinbiz, M. N., Brown, N. R., Terrani, K. A., Lowden, R. R., Erdman, D., 2017. Annals of Nuclear Energy 109, pp. 396-404. 3. Liu, M., Brown, N. R., Terrani, K. A., Ali, A. F., Blandford, E. D., Wachs, D. M., 2017. Annals of Nuclear Energy 110, pp. 48-62.


Dr. Nicholas Brown is an Assistant Professor of Nuclear Engineering at Penn State University. Dr. Brown’s research group focuses on pragmatic interdisciplinary solutions to nuclear science and engineering challenges. Specific areas of interest include advanced nuclear reactor design, sustainable nuclear fuel cycles, and advanced nuclear fuel and cladding materials. He was previously a staff member at Oak Ridge National Laboratory and Brookhaven National Laboratory. He has published 30 peer-reviewed journal articles, along with about 100 conference publications and national laboratory reports. Dr. Brown earned his Ph.D. from Purdue University.


Refreshments will be served.