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Operations & Power
Members focus on the dissemination of knowledge and information in the area of power reactors with particular application to the production of electric power and process heat. The division sponsors meetings on the coverage of applied nuclear science and engineering as related to power plants, non-power reactors, and other nuclear facilities. It encourages and assists with the dissemination of knowledge pertinent to the safe and efficient operation of nuclear facilities through professional staff development, information exchange, and supporting the generation of viable solutions to current issues.
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Utility Working Conference and Vendor Technology Expo (UWC 2024)
August 4–7, 2024
Marco Island, FL|JW Marriott Marco Island
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The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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Fusion Science and Technology
Latest News
Vogtle-3 shuts down for valve issue
One of the new Vogtle units in Georgia was shut down unexpectedly on Monday last week for a valve issue that has since been investigated and repaired. According to multiple local news outlets, Georgia Power reported on July 17 that Unit 3 was back in service.
Southern Company spokesperson Jacob Hawkins confirmed that Vogtle-3 went off line at 9:25 p.m. local time on July 8 “due to lowering water levels in the steam generators caused by a valve issue on one of the three main feedwater pumps.”
H. Foerstel, K. Lepa, H. Trierweiler.
Fusion Science and Technology | Volume 14 | Number 2 | September 1988 | Pages 1203-1208
Tritium Release Experiment | doi.org/10.13182/FST88-A25303
Articles are hosted by Taylor and Francis Online.
After HT is converted to HTO by the soil, the HTO is reemitted back into the atmosphere. Since HTO is more radiotoxic by a factor of 104, this reemission is an important part of the radioecological pathway of HT1. Laboratory studies show that the reemission rate from natural soil cores depends on the turnover in the gas space above the soil surface. Up to a wind velocity of about 4 m s−1, the portion of HTO reemitted hourly increases to about 18 % of the initial amount of the reaction product. However, after the first hour, the observed reemission rate decreases quickly to about 3% h−1. Varying the humidity of an air stream fed at a velocity of about 3 m s−1 into the reaction chamber, had no influence on the reemission rate. For the Canadian release study, small soil samples were exposed to the plume and afterwards to the air. Then, at certain intervals following the release, the soil containers were sealed with gastight lids. The remnant HTO activity was then determined by azeotropic distillation. The reemission rate, determined by this procedure, was about 3% h−1 during the day. During the night, no HTO loss was observed, possibly due to dew formation.