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Fusion Energy
This division promotes the development and timely introduction of fusion energy as a sustainable energy source with favorable economic, environmental, and safety attributes. The division cooperates with other organizations on common issues of multidisciplinary fusion science and technology, conducts professional meetings, and disseminates technical information in support of these goals. Members focus on the assessment and resolution of critical developmental issues for practical fusion energy applications.
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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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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.
Kazuyuki Takase
Fusion Science and Technology | Volume 34 | Number 3 | November 1998 | Pages 651-655
Safety and Environment (Poster Session) | doi.org/10.13182/FST98-A11963688
Articles are hosted by Taylor and Francis Online.
An analytical study was performed to understand the physical phenomena after an ingress-of-coolant event (ICE) in a fusion reactor. A simulation code was developed to identify two-phase flow behavior in a fusion reactor vacuum vessel (VV). It consisted of mass, momentum, and energy equations of the liquid and gas. Numerical simulations were carried out to obtain quantitative predictions. Distributions of pressure, temperature, velocity and void fraction in the VV were obtained and an impingement-jet behavior of water under vacuum conditions were clarified numerically.
