Work is in progress at TVA's Sequoyah Nuclear Plant to replace the four steam generators in Unit 2. The steam generators make the steam that is used to generate electricity.
One activity shown in this video is the assembly of the large project crane (red crane on left of screen). This crane is more than 380 feet tall. It will be used to make 22 heavy lifts, including sections of reactor shield building dome that are expected to weigh about 160 tons each, two steel containment vessel sections weighing about 16 tons each, four 65-ton sections of the concrete enclosures surrounding the steam generators, and the four old steam generators and the four new steam generators, each of which weighs about 345 tons.
The steam generator replacement project is a complex feat of design, engineering, and skilled craftsmanship and part of ongoing efforts to maintain safe, quality performance and to sustain reliable production of energy for customers of TVA power.
30 окт 2012
