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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.
K.J. O'Brien, G.A. Moses, A.M. White
Fusion Science and Technology | Volume 4 | Number 2 | September 1983 | Pages 883-888
Inertial Confinement Fusion | dx.doi.org/10.13182/FST83-A22972
Articles are hosted by Taylor and Francis Online.
It has been proposed to surround the target chamber of the Light Ion Fusion Target Development Facility with a water shield. Such a shield would effectively isolate the radioactive chamber from the environment while providing a medium in which to absorb energy imparted to the target chamber walls following the impact of the fireball. Radioactivity calculations will be presented for five different wall materials. If the water surrounding the chamber provides a damping mechanism for the wall vibrations, it also provides a medium through which a pressure pulse can be transmitted to the outer wall of the shield region. It is desirable to minimize the pressure loading upon this structure. An investigation of the effects of a bubble screen upon the propagation of the water pressure wave is presented, along with some possible criteria for the design of a screen.