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Division Spotlight
Operations & Power
Members focus on the dissemination of knowledge and information in the area of power reactors with particular application to the production of electric power and process heat. The division sponsors meetings on the coverage of applied nuclear science and engineering as related to power plants, non-power reactors, and other nuclear facilities. It encourages and assists with the dissemination of knowledge pertinent to the safe and efficient operation of nuclear facilities through professional staff development, information exchange, and supporting the generation of viable solutions to current issues.
Meeting Spotlight
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 Technology
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Latest News
Glass strategy: Hanford’s enhanced waste glass program
The mission of the Department of Energy’s Office of River Protection (ORP) is to complete the safe cleanup of waste resulting from decades of nuclear weapons development. One of the most technologically challenging responsibilities is the safe disposition of approximately 56 million gallons of radioactive waste historically stored in 177 tanks at the Hanford Site in Washington state.
ORP has a clear incentive to reduce the overall mission duration and cost. One pathway is to develop and deploy innovative technical solutions that can advance baseline flow sheets toward higher efficiency operations while reducing identified risks without compromising safety. Vitrification is the baseline process that will convert both high-level and low-level radioactive waste at Hanford into a stable glass waste form for long-term storage and disposal.
Although vitrification is a mature technology, there are key areas where technology can further reduce operational risks, advance baseline processes to maximize waste throughput, and provide the underpinning to enhance operational flexibility; all steps in reducing mission duration and cost.
P. Chellapandi, S. C. Chetal, Baldev Raj
Nuclear Technology | Volume 172 | Number 1 | October 2010 | Pages 1-15
Technical Paper | Fission Reactors | doi.org/10.13182/NT10-A10878
Articles are hosted by Taylor and Francis Online.
The FUSTIN dedicated computer code has been developed to predict the transient response of pool-type fast reactor components in a core disruptive accident. FUSTIN accurately simulates several complex phenomena, such as large distortions in the fluids, large displacements of the structure, fast transient fluid-structure interaction, etc., involved in determining the transient pressures, vessel displacements, and strains. FUSTIN has been validated by solving a few international benchmark problems. Further, for experimental validation of FUSTIN, dedicated tests were conducted to (a) characterize a low-density explosive that can appropriately simulate the nuclear energy release rate and (b) generate data, particularly deformations in the vessels representing the scaled-down model of the main vessel of a typical pool-type fast reactor. In the tests, the nuclear energy release rate was simulated by a low-density chemical explosive, which has been thoroughly characterized. The validation exercise demonstrates the excellent prediction capability of FUSTIN. The paper presents the mathematical formulations, solution strategy, and validation aspects of FUSTIN.
