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Education, Training & Workforce Development
The Education, Training & Workforce Development Division provides communication among the academic, industrial, and governmental communities through the exchange of views and information on matters related to education, training and workforce development in nuclear and radiological science, engineering, and technology. Industry leaders, education and training professionals, and interested students work together through Society-sponsored meetings and publications, to enrich their professional development, to educate the general public, and to advance nuclear and radiological science and engineering.
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ANS Student Conference 2025
April 3–5, 2025
Albuquerque, NM|The University of New Mexico
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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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Latest News
Norway’s Halden reactor takes first step toward decommissioning
The government of Norway has granted the transfer of the Halden research reactor from the Institute for Energy Technology (IFE) to the state agency Norwegian Nuclear Decommissioning (NND). The 25-MWt Halden boiling water reactor operated from 1958 to 2018 and was used in the research of nuclear fuel, reactor internals, plant procedures and monitoring, and human factors.
Xiaoming Yang , Ran Liu, Li Zhang (CAPE)
Proceedings | Pacific Basin Nuclear Conference (2018 PBNC) | San Francisco, CA, September 30-October 4, 2018 | Pages 30-33
A simplified model with lumped parameters for mass, momentum and energy governing equations is usually used for thermal-hydraulic analysis during severe accident of a Nuclear Power Plant (NPP). In one of this kind of model, the flow in the flow path between two control volumes is usually simplified as one-dimensional pipe flow, and the extended expression of the Bernoulli Integral in the unsteady flow is used to solve the momentum governing equation correspondingly. It is noticed that the solution of the velocity in the flow field is very sensitive to the length of the streamline, so-called as inertia length introduced by the unsteady flow, corresponding to the inertia loss in the flow path.
Based on the theoretical model for the extended expression of the Bernoulli Integral in the unsteady flow, this paper shows the theoretical sensitivity analysis of the inertial length to the solution of the momentum governing equation firstly. According to the analysis, a sensitive study model for the inertia length was built by the thermal-hydraulic code, and the responses of the velocity, pressure and temperature versus different inertia lengths were studied. The results show that there is a slower time response of the fluid system states while the inertia length increases, and the thermal-hydraulic response is very sensitive to the inertia length of a flow path. Therefore, it is strongly recommended to choose the inertia length very carefully when dealing with the inertia response of the thermal-hydraulic system during severe accident analysis.
