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Materials Science & Technology
The objectives of MSTD are: promote the advancement of materials science in Nuclear Science Technology; support the multidisciplines which constitute it; encourage research by providing a forum for the presentation, exchange, and documentation of relevant information; promote the interaction and communication among its members; and recognize and reward its members for significant contributions to the field of materials science in nuclear technology.
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2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
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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Nuclear Science and Engineering
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Nuclear Technology
Fusion Science and Technology
Latest News
PPPL study points to better fusion plasma control
The combination of two previously known methods for managing plasma conditions can result in enhanced control of plasma in a fusion reactor, according to a simulation performed by researchers at the Department of Energy’s Princeton Plasma Physics Laboratory.
A. John Arul, Parthkumar Rajendrabhai Patel, Darpan Krishnakumar Shukla
Nuclear Technology | Volume 209 | Number 7 | July 2023 | Pages 1024-1039
Technical Paper | doi.org/10.1080/00295450.2023.2175584
Articles are hosted by Taylor and Francis Online.
Passive safety systems help to improve overall plant safety, reliability, and resilience. However, the real gain in the use of passive systems depends on the robustness of the design utilizing the passive process and the role of active elements, if any. In this paper, we propose a fan-controlled sodium-to-air heat exchanger (AHX) system design for a failsafe and passive decay heat removal (DHR) function in a pool-type sodium-cooled fast reactor. The proposed system uses a fan to control air flow and minimize heat loss during normal operation, and when the fan trips due to loss of power or a trip signal, DHR gets enabled in a failsafe mode. The system is analyzed with the help of a simplified one-dimensional model as well as with detailed computational fluid dynamics software. It is found from analysis that it is possible to control and maintain the air flow to about 4% to 5% of full flow, as in the case of conventional dampers, to minimize heat loss during normal reactor operation. The reliability of the proposed system is also analyzed and shows that the fan-controlled AHX-based decay heat removal system (DHRS) has a much better reliability compared to the conventional passive DHRS with active damper-dependent operation.