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Thermal Hydraulics
The division provides a forum for focused technical dialogue on thermal hydraulic technology in the nuclear industry. Specifically, this will include heat transfer and fluid mechanics involved in the utilization of nuclear energy. It is intended to attract the highest quality of theoretical and experimental work to ANS, including research on basic phenomena and application to nuclear system design.
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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
PG&E to dredge Diablo Canyon intake system
The owners of the Diablo Canyon nuclear power plant plan to dredge a massive buildup of shoaled sediment from its seawater intake cove.
Pacific Gas and Electric spokesperson Suzanne Hosn said, “The dredging project in the Diablo Canyon marina will remove approximately 70,000 cubic yards of sediment to prevent circumstances that could impact the power plant’s cooling system. Dredging will take place for the first time since operations began because of a rapid increase in sediment.”
A. D. Beklemishev
Fusion Science and Technology | Volume 59 | Number 1 | January 2011 | Pages 90-93
doi.org/10.13182/FST11-A11581
Articles are hosted by Taylor and Francis Online.
Feedback control is routinely used in modern plasma traps for adjusting plasma equilibrium on the transport time scale. Some intrinsic properties of magnetic mirrors make it possible to employ feedback control for stabilization of flute modes as well. Purely electromagnetic plasma-control system that is independent of line-tying or plasma conductivity to the end-plates is proposed. The system adds transverse flexibility to the plasma column, so that any growing perturbation can be deformed to become anti-ballooning. Anti-ballooning form means reduced flute amplitude in bad-curvature regions and enhanced amplitude in expanders or other traditional stabilizers, so that energy of the perturbation becomes positive and the mode is suppressed. Detailed analysis shows that transverse flexibility (or tail-waving) of the discharge can be employed for feedback stabilization even without good-curvature regions. The only requirement is that the discharge inertia (field-weighted plasma density) and the pressure-weighted field curvature are differently distributed along the discharge. If based on inertia, the stabilization mechanism resembles the rope-walker act. Estimates show that the power cost of such stabilization is reasonable and scales inversely with the trap length.