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…]