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The division's objectives are to promote the advancement of knowledge and understanding of the fundamental physical phenomena characterizing nuclear reactors and other nuclear systems. The division encourages research and disseminates information through meetings and publications. Areas of technical interest include nuclear data, particle interactions and transport, reactor and nuclear systems analysis, methods, design, validation and operating experience and standards. The Wigner Award heads the awards program.
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Fusion Science and Technology
House Dems introduce clean energy bill for net zero
Democratic leaders in the House last week introduced the Climate Leadership and Environmental Action for our Nation’s Future Act (the CLEAN Future Act, or H.R. 1512), a nearly 1,000-page piece of climate change–focused legislation establishing, among other things, a federal clean electricity standard that targets a 50 percent reduction in greenhouse gas emissions from 2005 levels by 2030 and net-zero emissions by 2050.
The bill, a draft version of which was released in January 2020, presents a sweeping set of policy proposals, both sector-specific and economy-wide, to meet those targets. The final version includes a number of significant revisions to bring the legislation into closer alignment with President Biden’s climate policy campaign pledges. For example, the bill’s clean electricity standard would require all retail electricity suppliers to provide 80 percent clean energy to consumers by 2030 and 100 percent by 2035. (A six-page fact sheet detailing the updates is available online.)
S. I. Abdel-Khalik, M. Yoda
Fusion Science and Technology | Volume 47 | Number 3 | April 2005 | Pages 601-609
Technical Paper | Fusion Energy - Inertial Fusion Technology | dx.doi.org/10.13182/FST05-A752
Articles are hosted by Taylor and Francis Online.
This paper provides an overview of experimental and numerical studies conducted at Georgia Tech to assess the fluid dynamics aspects of liquid protection schemes for fusion energy reactors. The problems described here include: (1) Dynamics of slab jets for thick liquid protection, including the effect of nozzle design, flow conditioning, and boundary layer cutting on jet surface smoothness; (2) Primary turbulent breakup of turbulent liquid sheets and forced thin liquid films, and quantification of the associated hydrodynamic source term; (3) Dynamics of forced films on downward-facing flat and curved surfaces, including film detachment and flow around beam ports; (4) Free-surface topology and drop detachment from downward-facing porous wetted walls; and (5) Thermocapillary effects and associated design constraints for liquid-film-protected divertors and first walls.The experimental data and validated numerical models developed in these studies allow reactor designers to identify design windows for successful operation of liquid-protected first walls and plasma facing components in inertial and magnetic confinement systems.