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Division Spotlight
Thermal Hydraulics
The division provides a forum for focused technical dialogue on thermal hydraulic technology in the nuclear industry. Specifically, this will include heat transfer and fluid mechanics involved in the utilization of nuclear energy. It is intended to attract the highest quality of theoretical and experimental work to ANS, including research on basic phenomena and application to nuclear system design.
Meeting Spotlight
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!
Latest Magazine Issues
Jul 2024
Jan 2024
Latest Journal Issues
Nuclear Science and Engineering
August 2024
Nuclear Technology
Fusion Science and Technology
Latest News
Constellation seeks rezone for property adjacent to Illinois plant
While no development details have been released, Constellation is asking to rezone 658.8 acres of land it owns around the Byron nuclear plant in Illinois for possible long-term use.
Kenji Yokoyama (JAEA), Takanori Kitada (Osaka Univ)
Proceedings | 2018 International Congress on Advances in Nuclear Power Plants (ICAPP 2018) | Charlotte, NC, April 8-11, 2018 | Pages 1221-1230
As a method to improve the design prediction accuracy by utilizing integral experimental data, the conventional cross-section adjustment method (CA) based on Bayes the- orem is widely used. On the other hand, propositions of the generalized bias factor method (GB) in 2006 and the extended bias factor method (EB) in 2007 have stimulated theoretical study in this field. Subsequently, several new cross-section adjustment methods were proposed: the ex- tended cross-section adjustment method (EA); the cross- section adjustment methods based on minimum variance unbiased estimation (MVUE), which include the MVUE- based rigorous EA (MREA) and the MVUE-based rigorous CA (MRCA); and the dimension-reduced cross-section ad- justment method (DRCA). In the present paper, we applied these methods to a real-scale problem of design prediction accuracy evaluation for a large-size sodium cooled fast re- actor and compared their performances. From these re- sults, we discuss a proper use of these design methods.