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Reactor Physics
The division's objectives are to promote the advancement of knowledge and understanding of the fundamental physical phenomena characterizing nuclear reactors and other nuclear systems. The division encourages research and disseminates information through meetings and publications. Areas of technical interest include nuclear data, particle interactions and transport, reactor and nuclear systems analysis, methods, design, validation and operating experience and standards. The Wigner Award heads the awards program.
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2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
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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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X-energy receives federal tax credit for TRISO fuel facility
Advanced reactor company X-energy has been awarded $148.5 million in tax credits under the Inflation Reduction Act for construction of its TRISO-X fuel fabrication facility in Oak Ridge, Tenn.
Jin Ho Song
Nuclear Technology | Volume 170 | Number 1 | April 2010 | Pages 114-122
Technical Paper | Special Issue on the 2008 International Congress on Advances in Nuclear Power Plants / Thermal Hydraulics | doi.org/10.13182/NT10-A9450
Articles are hosted by Taylor and Francis Online.
An optimal geometrical configuration that results in a maximum loop flow rate at given volume constraints is investigated for a two-phase natural circulation loop and a single-phase natural circulation loop. A rectangular loop connected with pipes is considered, which consists of a heater, a cooler, a riser, and a downcomer. By varying the aspect ratio of the loop, the number of pipes in the heating and cooling sections, and the distribution of the volumes between the cold side and the hot side, an optimal loop configuration that results in a maximum loop flow rate is determined from an analytical solution using simplifying assumptions. It is shown that the optimal configuration is beneficial in terms of minimizing the temperature rise and the pressure rise at given heat input. To support the argument, a complementary numerical analysis for a two-phase natural circulation flow in a rectangular loop is performed. The results are in good agreement with those predicted by the analytical models.