Correlations among FBR core characteristics for various fuel compositions
| Autor: | Tsutomu Okubo, Katsuyuki Kawashima, Tomoyasu Mizuno, Shigeo Ohki, Shuhei Maruyama |
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| Rok vydání: | 2012 |
| Předmět: | |
| Zdroj: | Journal of Nuclear Science and Technology. 49:640-654 |
| ISSN: | 1881-1248 0022-3131 |
| Popis: | In the design of a fast breeder reactor (FBR) core for the light water reactor (LWR) to FBR transition stage, it is indispensable to grasp the effect of a wide range of fuel composition variations on the core characteristics. This study finds good correlations between burnup reactivity and safety parameters, such as the sodium void reactivity and Doppler coefficient, for various fuel compositions and determines the mechanisms behind these correlations with the aid of sensitivity analyses. It is clarified that the Doppler coefficient is actually correlated with the other core characteristics by considering the constraint imposed by the requirement of sustaining criticality on the fuel composition variations. These correlations make it easy to specify the various properties ranges for core reactivity control and core safety, which are important for core design in determining the core specifications and performance. They provide significant information for FBR core design for the transition stage. Moreover, ... |
| Databáze: | OpenAIRE |
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