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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.
Michel Amblard, Jean-Marc Delhaye, Karine Froment, Jean-Marie Seiler, Bruno Tourniaire
Nuclear Technology | Volume 153 | Number 3 | March 2006 | Pages 315-325
Technical Paper | Thermal Hydraulics | doi.org/10.13182/NT06-A3710
Articles are hosted by Taylor and Francis Online.
In the ANAIS experiments, water was injected as a jet or a spray at a given temperature and a given flow rate onto a superheated (~1600°C) molten steel layer for an imposed value of the heat rate delivered to the steel layer by induction heating. At the beginning of a test, water was injected during a few seconds with a high flow rate. Thereafter, the flow rate was decreased to evacuate the thermal power under steady-state conditions. The heat generation rate in the metal was maintained during the water injection at ~1 MW/m2, which represents a typical reactor situation. The test results showed that the steel-water heat transfer led to different final situations depending on the injection mode and water velocity. In addition, the water-cooling power was rather high at the very beginning of the transient and comparable to the heat rate delivered to the metal layer in steady-state conditions. Also, it was observed that no steam explosion occurred in any case, and that a solid layer always formed at the steel free-surface.