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Sequoyah Nuclear Power Plant, Tennessee |
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Update: October 10, 2008
Next Update: October 2009 Sequoyah Nuclear Power Plant Net Generation and Capacity, 2007
Description: The Sequoyah nuclear power plant is located on a 525-acre site near Chattanooga, Tennessee. Sequoyah, Unit 1
Nuclear Steam System Supplier (NSSS Vendor) = Westinghouse Electric Sequoyah, Unit 2 Nuclear Steam System Supplier (NSSS Vendor) = Westinghouse Electric Pressurized-Water Reactor (PWR) In a typical commercial pressurized light-water reactor (1) the reactor core generates heat, (2) pressurized-water in the primary coolant loop carries the heat to the steam generator, (3) inside the steam generator heat from the primary coolant loop vaporizes the water in a secondary loop producing steam, (4) the steam line directs the steam to the main turbine causing it to turn the turbine generator, which produces electricity. The unused steam is exhausted to the condenser where it is condensed into water. The resulting water is pumped out of the condenser with a series of pumps, reheated, and pumped back to the steam generator. The reactors core contains fuel assemblies which are cooled by water, which is force-circulated by electrically powered pumps. Emergency cooling water is supplied by other pumps, which can be powered by onsite diesel generators. Other safety systems, such as the containment cooling system, also need power.
Containment: Both reactors have ICECND (wet, ice condenser)2 containment. _________________________________________ 1"New Generators now in place; full steam ahead for Sequoyah," by Carol Ayers, Inside TVA, May 2003. |
see also:
annual
nuclear statistics back to 1953
projected electricity capacity to 2030
international
electricity statistics