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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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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.
Barry L. Butterfield (Retired), Daniel B. Bullen (DNFSB)
Proceedings | 16th International High-Level Radioactive Waste Management Conference (IHLRWM 2017) | Charlotte, NC, April 9-13, 2017 | Pages 330-335
An important component of the proposed Yucca Mountain Project was the development of a new rail line intended to transport waste casks from the main U.S. rail system to the repository site. The early phases of repository development identified five corridors for consideration: Carlin, Jean, Valley Modified, Caliente, and Caliente-Chalk Mountain. Later in the process, DOE added a new corridor, Mina, based on conversations with the Walker River Paiute Tribal Council. In the Final Environmental Impact Statement (RA-EIS) for the rail alignments, DOE concluded that two rail corridors, Caliente and Mina, would be considered in detail. Nevada Rail Partners, a subcontractor to the Yucca Mountain Project management and operations contractor, evaluated ten possible alternate alignments within the Caliente Corridor, and four alternate alignments within the Mina Corridor. The evaluations included alternative alignments (including rail design criteria), rail construction, yard facilities, and rail operations issues. This paper briefly describes these evaluations, and provides a summary of the engineering evaluation of facility requirements, system controls, construction planning, and air quality issues.
Development of conceptual design drawings for alternate alignments was relatively straightforward. The conceptual design process also included development of preliminary construction plans that provided a basis to the environmental contractor who prepared the RA-EIS. This paper focuses on the lessons learned throughout this conceptual design process as well as from a review of public comments received on the RA-EIS. These lessons address issues associated with general design principles, resource impacts, and alignment selection. This paper also provides a strategic assessment of issues regarding the new paradigm for environmental activism. These issues should be incorporated into the evaluation of any updated transportation plan for Yucca Mountain, should that site be re-considered, or any new site identified by either the Department of Energy or a private sector applicant.