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DOE announces NEPA exclusion for advanced reactors
The Department of Energy has announced that it is establishing a categorical exclusion for the application of National Environmental Policy Act (NEPA) procedures to the authorization, siting, construction, operation, reauthorization, and decommissioning of advanced nuclear reactors.
According to the DOE, this significant change, which goes into effect today, “is based on the experience of DOE and other federal agencies, current technologies, regulatory requirements, and accepted industry practice.”
K. Taghavi, M. S. Tillack, H. Madarame
Fusion Science and Technology | Volume 12 | Number 1 | July 1987 | Pages 104-113
Technical Paper | Blanket Engineering | doi.org/10.13182/FST87-A25054
Articles are hosted by Taylor and Francis Online.
The presence of strong magnetic fields and of volumetric heat generation in the fusion reactor environment result in an unusual heat transfer situation for liquid metals, as compared to nonconducting coolants. The effects of velocity profiles and volumetric heat generation on heat transfer in liquid-metal blankets are examined both analytically and numerically. Analysis shows that unlike the fully developed Nusselt number, the spatial dependence within the entry region is relatively insensitive to the shape of the velocity profile and the amount of bulk heating. Hence, closed form solutions f or fully developed heat transfer can be used together with a normalized entrance region curve to estimate heat transfer throughout the blanket.