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DNFSB: Moving fissile materials, operations from Y-12 building improves nuclear safety, reduces risk

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Building 9204-2 (Beta 2) is pictured above at center at the Y-12 National Security Complex. Part of Building 9204-2E (Beta 2E) is pictured in the top left. (Photo courtesy Consolidated Nuclear Security)

Building 9204-2 (Beta 2) is pictured above at center at the Y-12 National Security Complex. Part of Building 9204-2E (Beta 2E) is pictured in the top left. (Photo courtesy Consolidated Nuclear Security)

 

Building 9204-2 (Beta 2) is pictured above at center at the Y-12 National Security Complex. Part of Building 9204-2E (Beta 2E) is pictured in the top left. (Photo courtesy Consolidated Nuclear Security)

Building 9204-2 (Beta 2) is pictured above at center at the Y-12 National Security Complex. Part of Building 9204-2E (Beta 2E) is pictured in the top left. (Photo courtesy Consolidated Nuclear Security)

 

Nuclear materials and operations have been removed from an old building at the Y-12 National Security Complex, and that improves safety and reduces the risk to workers and the public, a federal safety board said.

The building, 9204-2, or Beta 2, is on the west side of Y-12. It’s one of nine buildings at the 811-acre site that once used machines known as calutrons to enrich uranium for atomic bombs as part of the top-secret Manhattan Project during World War II. It’s now used to produce lithium for nuclear weapons.

In an early September report, the Defense Nuclear Facilities Safety Board said Consolidated Nuclear Security and the National Nuclear Security Administration Production Office had officially downgraded Building 9204-2. It had been a category two hazard, but it is now less than category three. It’s considered non-nuclear.

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NNSA finishes upgrades at Y-12 enriched uranium buildings ahead of schedule, under budget

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Y-12 Building 9212 Stack 110

At Building 9212, Stacks 110 and 43 were combined, which eliminated use of one exhaust stack. Further improvements on the project at the Y-12 National Security Complex included the old bag filtration system being replaced with a new cartridge dust collector, shown here. (Photos courtesy NNSA)

 

Project provides critical infrastructure upgrades in Building 9212

The National Nuclear Security Administration has completed a major capital improvement project that has resulted in critical infrastructure upgrades to two key production buildings at the Y-12 National Security Complex. The $75.7 million project was completed nearly 11 months ahead of the construction completion schedule and approximately $5.6 million under budget.

The Nuclear Facilities Risk Reduction, or NFRR, project included upgrades to mechanical, electrical, ventilation, and heating/cooling systems for enriched uranium operations in Buildings 9212 and 9204-2E. The project began in 2008, when 10 tasks were identified and undertaken to make those facilities safer for operations. The project was originally scheduled for completion in 2016.

Improvements include major portions of a 40‑year‑old ventilation system being replaced, and 11 steam stations being consolidated into seven with improved function and maintainability. Several upgrades, replacements, and modifications have been made to electrical switchgear and motor control center systems, and a Kathabar system was replaced with a more environmentally friendly brine chiller. [Read more…]