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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.
J. Weede, V. K. Dhir
Fusion Science and Technology | Volume 4 | Number 2 | September 1983 | Pages 483-488
Blanket and First Wall Engineering | dx.doi.org/10.13182/FST83-A22910
Articles are hosted by Taylor and Francis Online.
In this study, the critical heat flux (CHF) in subcooled flow of Freon-113 through short vertical tubes has been investigated. In addition, the concept of local tangential flow injection has been studied as a means of CHF enhancement. The data without tangential injection (axial flow) indicate that there is an effect of heated length in the limit of very short tubes. The CHF data obtained with tangential injection show as much as 67% enhancement in CHF over axial flow data at the same conditions. In addition, it has been shown that local tangential injection could be utilized in non-uniform heating situations.