For plant lifetime extension programs, AREVA provides a customized solution for thermal load monitoring and fatigue calculation. Requirements like environmental assisted fatigue effects or flexible plant operation (load following) have crucial impacts for a detailed fatigue assessment. With a modularized monitoring concept and automated simplified fatigue estimation technique, plant components can be monitored very cost efficiently with validated methodologies, providing flexible, fast and accurate results. The layout of the modularized monitoring system is simplified and different options can be added on demand. With the automated fatigue assessment, thermal transients can be classified and a cumulative usage factor can be estimated on-line. With the help of this method, the impact of thermal transients to the component fatigue can be evaluated just in time. That can be a piece of important information to get for a better knowledge about the plant behavior during flexible operating (load following) modes.
AREVA’s Modularized Fatigue Monitoring for Lifetime Extension and Flexible Plant Operation
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Heinz, B, & Wu, D. "AREVA’s Modularized Fatigue Monitoring for Lifetime Extension and Flexible Plant Operation." Proceedings of the ASME 2014 Pressure Vessels and Piping Conference. Volume 7: Operations, Applications and Components. Anaheim, California, USA. July 20–24, 2014. V007T07A003. ASME. https://doi.org/10.1115/PVP2014-28726
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