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As a preferred Engineering company for First Energy Nuclear Corporation, ENERCON was asked to support efforts to recover from the Reactor head corrosion problem at their Davis-Besse nuclear plant. Over a two-week period, a team of forty engineers was mobilized, completed site training, was provided unescorted access, and was working at the site as well as in our Germantown, Atlanta, Oakland, Tulsa and Mt. Arlington offices. ENERCON was assigned lead responsibility for several of the critical path projects leading to re-start.
Major projects included the design of a new ECCS sump strainer system consisting of an innovative design developed by ENERCON to meet the physical limitations of existing size and location in the containment. ENERCON performed Computational Fluid Dynamics analysis to better define the expected wash-down paths and velocities, high-energy line-break analyses, debris generation models and structural loading calculations to support the design effort. ENERCON managed the fabrication of the strainer and field installation activities as well.
Due to the boron vapor in the containment, all of the Containment Air Coolers had deteriorated to the point where replacement was required. ENERCON located acceptable vendors, issued the equipment specifications, and developed the modification packages required for installation.
ENERCON supported the restart plan including detailed reviews of over sixty plant programs with preparation of written reports and presentation of reports and findings to an oversight board.