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The nuclear powered steam generator started as a power plant for the first nuclear submarine, the USS Nautilus. It was designed and built by the Westinghouse Electric Company power company for the submarine; from there the company started its development and research of nuclear-powered steam generators. [3]
A common shortcoming of these large steam generators was tube wear, requiring replacement earlier than their 40-year design life. [14] The steam generators being the largest components in the reactor required a temporary hole through the concrete containment shell. The Unit 2 replacement was completed in 2009 and Unit 3 in 2011.
The heat from nuclear fission is used to raise steam, which runs through turbines, which in turn power the electrical generators. Nuclear reactors usually rely on uranium to fuel the chain reaction. Uranium is a very heavy metal that is abundant on Earth and is found in sea water as well as most rocks.
On February 15, 2021 during a major power outage that impacted much of the state of Texas, an automatic reactor trip shut South Texas Nuclear Generation Station Unit 1 due to low steam generator levels. According to a Nuclear Regulatory Commission report, the low steam generator levels were due to loss of feedwater pumps 11 and 13. However ...
The Trojan steam generators were designed to last the life of the plant, but it was only four years before premature cracking of the steam tubes was observed. [citation needed] In October 1979, the plant was shut down through the end of the year for repairs. [14] [15] [16] The plant had an extended shutdown in 1984, with difficulty restarting. [17]
The Palisades Nuclear Generating Station is a moth-balled ... The Westinghouse Electric Company turbine generator can produce 725,000 ... Two steam generators were ...
On November 19, 2005, its workers finished replacing all four steam generators in 63 days, 13 hours, a world record for a four-loop plant. [6] In 2014, the Nuclear Regulatory Commission tests found contaminated ground water near the site. [7] The plant experienced three unplanned shutdowns in 2020.
A supercritical steam generator is a type of boiler that operates at supercritical pressure and temperature, frequently used in the production of electric power. In contrast to a subcritical boiler in which steam bubbles form, a supercritical steam generator operates above the critical pressure – 22 megapascals (3,200 psi ) and temperature ...