Experimental studies on the upward fuel discharge for elimination of severe recriticality during core-disruptive accidents in sodium-cooled fast reactors
| Autor: | Zuyev, V. A., Pakhnits, A. V., Vityuk, V. A., Vurim, A. D., Gaidaichuk, V. A., Kolodeshnikov, A. A., Vassiliev, Y. S. |
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| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: | |
| Zdroj: | Journal of Nuclear Science and Technology. 51(9):1114-1124 |
| ISSN: | 0022-3131 |
| Popis: | Recently, a design option which leads molten fuel to upward discharge has been considered to minimize technical difficulties for practical application to JSFR. In the present study, a series of experiments which consisted of three out-of-pile tests and one in-pile test were conducted to investigate effectiveness of the upward discharge option on eliminating energetics potential. Experimental data which showed a sequence of upward fuel-discharge and effects of initial pressure conditions on upward-discharge were obtained through the out-of-pile and in-pile test. Preliminary extrapolation of the present results to the supposed condition in early phase of the CDA in the JSFR design, suggested that sufficient upward flow rate of molten-fuel was expected to prevent the core-melting from progressing beyond the fuel subassembly scale and that the upward discharge option would be effective in eliminating the energetic potential. 著者所属: 日本原子力研究開発機構(JAEA) |
| Databáze: | OpenAIRE |
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