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The steam reaching the turbines need to be ultra-pure and hence needs to be monitored for its quality. A well designed Steam and Water Analysis system (SWAS) can help in monitoring the critical parameters in the steam. These parameters include pH, conductivity, silica, sodium, dissolved oxygen, phosphate and chlorides. A well designed SWAS must ...
To avoid such primary-secondary leaks, steam generator tubes are periodically inspected by eddy-current testing, and individual tubes can be plugged to remove them from operation. [2] As with many nuclear components, mechanical engineers determine the inspection frequency using the known rates of corrosion and crack propagation in the material.
A leak appearing within an analytic region (a rule added to the camera) is immediately analyzed for its attributes, including thermal temperature, size, and behaviour (e.g. spraying, pooling, spilling). When a leak is determined to be valid based on set parameters, an alarm notification with leak video is generated and sent to a monitoring station.
American Electric Power Company Inc. said service was suspended from the 1,168 megawatt (MW) unit when it tripped due to lowering water level in one of the plant’s four steam generators. In the late night hours of June 22, 2021, operators discovered a leak in a high pressure steam line providing non-radioactive steam to the low pressure ...
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Globally, there have been at least 99 (civilian and military) recorded nuclear reactor accidents from 1952 to 2009 (defined as incidents that either resulted in the loss of human life or more than US$50,000 of property damage, the amount the US federal government uses to define major energy accidents that must be reported), totaling US$20.5 billion in property damages.
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The Ginna plant was the site of a nuclear accident when, on January 25, 1982, a small amount of radioactive steam leaked into the air after a steam-generator tube ruptured. [6] [7] The leak which lasted 93 minutes led to the declaration of a site emergency. The rupture was caused by a small pie-pan-shaped object left in the steam generator ...