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NRC approves TerraPower construction permit
Today, the Nuclear Regulatory Commission announced that it has approved TerraPower’s construction permit application for Kemmerer Unit 1, the company’s first deployment of Natrium, its flagship sodium fast reactor.
This approval is a significant milestone on three fronts. For TerraPower, it represents another step forward in demonstrating its technology. For the Department of Energy, it reflects progress (despite delays) for the Advanced Reactor Demonstration Program (ARDP). For the NRC, it is the first approval granted to a commercial reactor in nearly a decade—and the first approval of a commercial non–light water reactor in more than 40 years.
Sümer Şahın
Nuclear Technology | Volume 92 | Number 1 | October 1990 | Pages 93-105
Technical Paper | Development of Nuclear Gas Cleaning and Filtering Techniques / Fission Reactor | doi.org/10.13182/NT90-A34489
Articles are hosted by Taylor and Francis Online.
A straightforward numerical-graphical method is applied to achieve a flat fission power density (FPD) in a catalyzed deuterium-deuterium fusion-driven hybrid blanket by using a mixed fuel made of a nuclear waste actinide (244CmCO2) and natural UO2 with variable fractions of fuel components in the radial direction. The FPD could be kept quasi-constant over a relatively long plant lifetime. The peak-to-average FPD increases from 1.071 at start-up to ∼ 1.074 after 18 months’ operation. The plant availability factor is 60% under a first-wall fusion neutron flux load of 1014 x 2.45- and 1014 x 14.1-MeV neutron/cm2.s, corresponding to ∼2.64 MW/m2. This eliminates the fuel management requirements for at least 18 months of plant operation. The investigated blanket breeds high-quality nuclear fuel (239Pu and 245Cm) and also produces electricity. The overall blanket multiplication factor M increases from 9.4 to only 9.8 in 18 months. This allows an optimal exploitation of the nonnuclear part of the power plant.
