Mr. Ryan Flanagan Profile

Ryan Flanagan

at Sandia National Labs

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Proceedings Article | 28 May 2024 Presentation + Paper

Multispectral data fusion from high energy arcing fault experiments

Alvaro Cruz-Cabrera, Austin Glover, Ryan Flanagan

Proceedings Volume 13083, 130830G (2024) https://doi.org/10.1117/12.3023510

KEYWORDS: Aluminum, Cameras, Mid-IR, Switching, Long wavelength infrared, Infrared cameras, Clouds, Copper, Particles

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Although fire events inside nuclear power plants (NPPs) are infrequent, when they occur, they can affect the safe operation of the plant if there is not sufficient protection addressing the risk. As mitigation for fire events, NPPs have comprehensive fire protection systems intended to reduce the likelihood of a fire event and the associated consequences. An electrical arcing fault involving components made of aluminum is one such hazard that could lead to a significant consequence. Because the original evaluation of High-Energy Arcing Faults (HEAF) was performed on components made of copper, there is an interest in understanding the effects of aluminum in these incidents. The Nuclear Regulatory Commission (NRC) has led a series of HEAF experiments at a facility near Philadelphia, PA, in conjunction with the National Institute of Standards and Technology (NIST), European and Japanese partners, and Sandia National Laboratories (SNL). To capture a range of different HEAF events, Sandia has provided high-speed visible and IR videography from multiple angles during this series of experiments. One of the data products provided by Sandia is the combination and synchronization of infrared and visible data from the multiple cameras used in the tests. This multispectral fusion of information (visible, MWIR, and LWIR) allows the customer to visualize the tests and understand when different events happen in the two to four second duration of a test. The presentation will dissect three experiments and describe the different events occurring during their duration. The presentation will compare the behavior of equipment that contains aluminum components versus the ones containing copper or steel. Finally, data from a switchgear experiment will be presented to complement the bus duct data.

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