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Mathematics & Computation
Division members promote the advancement of mathematical and computational methods for solving problems arising in all disciplines encompassed by the Society. They place particular emphasis on numerical techniques for efficient computer applications to aid in the dissemination, integration, and proper use of computer codes, including preparation of computational benchmark and development of standards for computing practices, and to encourage the development on new computer codes and broaden their use.
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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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Securing the advanced reactor fleet
Physical protection accounts for a significant portion of a nuclear power plant’s operational costs. As the U.S. moves toward smaller and safer advanced reactors, similar protection strategies could prove cost prohibitive. For tomorrow’s small modular reactors and microreactors, security costs must remain appropriate to the size of the reactor for economical operation.
Yanhua Zheng, Hanliang Bo, Duo Dong
Nuclear Technology | Volume 153 | Number 2 | February 2006 | Pages 234-239
Technical Note | Thermal Hydraulics | doi.org/10.13182/NT06-A3703
Articles are hosted by Taylor and Francis Online.
As a new type of control rod driving system, the hydraulic control rod driving system (HCRDS) has long been applied in a 5-MW nuclear heating reactor, and the safety and the reliability of the system have been proven. The principle of the work and the step-up operation of the HCRDS have been introduced in this paper. Based on the theoretical model, the temperature influence on the static holding-flow rate, the dynamic holding-flow rate, and the working holding-flow rate has been studied. It indicates that with the increase of the temperature, the static and dynamic holding-flow rates will increase while the working holding-flow rate will decrease.A detailed analysis of the step-up process on various temperature conditions has been carried out. Considering the great temperature influence on the step-up operation of the system, the method of temperature compensation to select suitable delay time and working holding-flow rate in a certain temperature province is put forward to offset the influence. The analysis can be conducive to widespread availability of the HCRDS and establish a basis for further research and improvement.