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Division Spotlight
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.
Meeting Spotlight
Utility Working Conference and Vendor Technology Expo (UWC 2024)
August 4–7, 2024
Marco Island, FL|JW Marriott Marco Island
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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Fusion Science and Technology
Latest News
ARPA-E announces $40 million to develop transmutation technologies for UNF
The Department of Energy’s Advanced Research Projects Agency–Energy (ARPA-E) announced $40 million in funding to develop cutting-edge technologies to enable the transmutation of used nuclear fuel into less-radioactive substances. According to ARPA-E, the new initiative addresses one of the agency’s core goals as outlined by Congress: to provide transformative solutions to improve the management, cleanup, and disposal of radioactive waste and spent nuclear fuel.
Satoshi Ito, Hidetoshi Hashizume
Fusion Science and Technology | Volume 68 | Number 2 | September 2015 | Pages 428-432
Technical Paper | Proceedings of TOFE-2014 | doi.org/10.13182/FST15-104
Articles are hosted by Taylor and Francis Online.
This paper discusses thermal design of a segmented high-temperature superconducting (HTS) magnet depending on geometry of HTS conductors, cooling system (indirect cooling or partial forced flow cooling), cooling techniques and joint resistance. For the purpose, three-dimensional heat conduction analysis was carried out with a finite element code, modeling geometry and operating condition of helical coils in a helical fusion reactor, FFHR as an example. In this analysis, liquid neon was assumed to be used as a coolant at an operating temperature of 25 K. As a heat removal technique for the joint, cooling system of a cryogenic liquid coolant with metal porous media has been proposed and it was also modeled in the heat conduction analysis. The numerical results showed that stainless steel jacket and a low thermal conductivity insulator determine temperature distribution and any cooling techniques cannot contribute to prevent the temperature rise when joint resistance increases in the case of the indirect cooling system. On the other hand, a high performance cooling technique such as metal porous media-inserted channel is effective to reduce temperature rise in the partial force cooling system.