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Fusion Science and Technology
Penfield and Enos: Outage planning in the COVID-19 era
Energy Harbor’s Beaver Valley plant, located about 34 miles northwest of Pittsburgh, Pa., was one of many nuclear sites preparing for a scheduled outage as the coronavirus pandemic intensified in March. The baseline objective of any planned outage—to complete refueling on time and get back to producing power—was complicated by the need to prevent the transmission of COVID-19.
While over 200 of the plant’s 850 staff members worked from home to support the outage, about 800 contractors were brought in for jobs that could only be done on-site. Nuclear News Staff Writer Susan Gallier talked with Beaver Valley Site Vice President Rod Penfield and General Plant Manager Matt Enos about the planning and communication required.
Beaver Valley can look forward to several more outages in the future, now that plans to shut down the two Westinghouse pressurized water reactors, each rated at about 960 MWe, were reversed in March. “The deactivation announcement happened in the middle of all our planning,” Enos said. “It’s a shame we haven’t had a chance to get together as a large group and celebrate that yet.”
While the focus remains on safe pandemic operations, the site now has two causes for celebration: an outage success and a long future ahead.
Masahiro Tanaka, Takahiko Sugiyama
Fusion Science and Technology | Volume 67 | Number 3 | April 2015 | Pages 600-603
Proceedings of TRITIUM 2013 | dx.doi.org/10.13182/FST14-T89
Articles are hosted by Taylor and Francis Online.
To fabricate a tritium monitoring system with electrochemical hydrogen pumping attached, a tritium monitor system was constructed and assembled with a commercial tritium monitor and an electrochemical hydrogen pump using a proton conducting oxide. The hydrogen pump with CaZr0.9In0.1O3−α as the proton conducting oxide was operated at 973 K under electrolysis conditions using tritiated water vapor (HTO). The tritium molecules (HT) were extracted and controlled by the applied current over a range of two orders of magnitude. The tritium molecules have an advantage with respect to the tritium memory effect in the monitor because the tritium contamination is reduced. Next, a system feasibility test was conducted under various water vapor partial pressure conditions. Thus, the measurement of the tritium concentration via this proposed system was successfully demonstrated.