DOE OSTI · 1631748
System Study: Residual Heat Removal 1998–2018
Abstract
This report presents an unreliability evaluation of the residual heat removal (RHR) system in two modes of operation (low-pressure injection in response to a large loss-of-coolant accident and post-trip shutdown-cooling) at 104 U.S. commercial nuclear power plants. Demand, run hours, and failure data from calendar years 1998 through 2018 for selected components were obtained from the Institute of Nuclear Power Operations (INPO) Industry Reporting and Information System (IRIS), formerly the INPO Consolidated Events Database (ICES). The unreliability results are trended for the most recent 10 year period while yearly estimates for system unreliability are provided for the entire active period. No statistically significant increasing or decreasing trends were identified in the RHR results.
Explore related subjects
Keep this discovery
Explore connections, maps & timelines
Ma, Zhegang, Kvarfordt, Kellie J., Wierman, Thomas E., Schroeder, John A.. 2020-04-17. System Study: Residual Heat Removal 1998–2018. https://doi.org/10.2172/1631748
Cite the original work for its findings. Save a collection to share your selection of sources.