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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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2024 ANS Annual Conference
June 16–19, 2024
Las Vegas, NV|Mandalay Bay Resort and Casino
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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
Steam is a sign of cooling system function . . . at ITER
Steam from one of ITER’s ten induced-draft cooling cells offers visual confirmation of a successful cooling system test, the ITER organization announced April 30. ITER’s cooling system features 60 kilometers of piping with pumps, filters, and heat exchangers that can pull water through at up to 14 cubic meters per second. Once fully operational, two cooling loops—one to remove the heat generated by the plasma in the ITER tokamak and one for its supporting infrastructure—will be capable of extracting up to 1,200 MW of heat.
Ketan Mittal, Ahti Suo-Anttila, Miles Greiner
Nuclear Technology | Volume 192 | Number 2 | November 2015 | Pages 142-154
Technical Paper | Radioactive Waste Management and Disposal | doi.org/10.13182/NT14-156
Articles are hosted by Taylor and Francis Online.
The fire time of concern for a component within a used nuclear fuel transport package is the time after fire ignition when that component reaches its temperature of concern. In this work a legal weight truck package that is designed to transport one used pressurized water reactor fuel assembly is assumed to be in proximity to a 12-m-diameter jet propellant fuel pool fire. Container Analysis Fire Environment (CAFE) simulations are used to predict the fire times of concern for the fuel cladding, seal, lead gamma shield, and liquid neutron shield of the package, for different package locations relative to the fire under no-wind conditions. When the package was centered over the pool, the CAFE-predicted time of concern for the cladding to reach its possible burst rupture temperature (nominally 750°C) was between 11.8 and 13.3 h, depending on the modeling parameter values and mesh refinement. As the package was moved away from the pool center, the cladding time of concern increased, and its in-fire steady-state temperature (reached after being exposed to the fire for a long time) decreased. The cladding did not reach its temperature of concern when the package center was 6 m from the pool center (above the pool edge), even in infinitely long-lasting fires. This type of analysis can be used to determine a “safe distance” between the pool and package centers, beyond which certain components important to safety will not reach their temperature of concern, no matter how long a fire lasts. This will help risk analysts determine which accident scenarios can significantly affect public and environmental safety and those that cannot.