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Division Spotlight
Isotopes & Radiation
Members are devoted to applying nuclear science and engineering technologies involving isotopes, radiation applications, and associated equipment in scientific research, development, and industrial processes. Their interests lie primarily in education, industrial uses, biology, medicine, and health physics. Division committees include Analytical Applications of Isotopes and Radiation, Biology and Medicine, Radiation Applications, Radiation Sources and Detection, and Thermal Power Sources.
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Utility Working Conference and Vendor Technology Expo (UWC 2024)
August 4–7, 2024
Marco Island, FL|JW Marriott Marco Island
Standards Program
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.”
R. F. Bourque
Fusion Science and Technology | Volume 15 | Number 2 | March 1989 | Pages 1270-1274
Commercial Reactors, Economics and Power Conversion | doi.org/10.13182/FST89-A39864
Articles are hosted by Taylor and Francis Online.
Cascade is an ICF reactor concept with a flowing ceramic granule blanket operating at high temperatures (≤ 1600K). For electical power conversion, we examined three options: (1) conventional Rankine cycle using steam, (2) closed cycle Brayton helium gas turbine, and (3) the Field cycle, which is a hybrid Brayton/Rankine cycle using steam. We found the Brayton cycle to be the most suitable choice. The reference cycle chosen has a peak turbine nozzle inlet temperature of 1300K and a net efficiency of 54.8%. Reheats are an unnecessary complication which, in this case, do not increase efficiency. On the other hand, intercoolers between compressor stages are beneficial. Most of the components can be heat-resisting metal alloy, with ceramics needed only in a limited number of high temperature components. The Field cycle has both elements of the Rankine and Brayton, performance is somewhere in between, and steam pressures are lower than Rankine. Temperatures are high, but low enough to use heat resisting alloys everywhere. It is discussed here because it may be of value in reactors with gas-cooled blankets.