{"id":18369,"date":"2018-08-14T18:15:17","date_gmt":"2018-08-14T18:15:17","guid":{"rendered":"http:\/\/sitepourvtc.com\/?page_id=18369"},"modified":"2023-02-01T07:32:02","modified_gmt":"2023-02-01T07:32:02","slug":"reload-startup-physics-tests","status":"publish","type":"page","link":"https:\/\/sitepourvtc.com\/nuclear-power\/reactor-physics\/reactor-operation\/reactor-startup\/reload-startup-physics-tests\/","title":{"rendered":"Reload Startup Physics Tests"},"content":{"rendered":"
In conjunction with each refueling or other significant reactor core alternation, reactor startup physics tests <\/strong>are required to determine if the operating characteristics of the core are consistent with the core design calculations (pre-calculated). Therefore key nuclear safety parameters must also be verified experimentally during physics tests at low power<\/strong>.<\/p>\n Key nuclear safety parameters are selected as a minimal set of parameters that describes the behavior of a reactor core during transients and accidents assumed in safety analyses (SAR).<\/p>\n The set of key nuclear safety parameters selected for low power physics tests includes:<\/p>\n Following the low power physics tests, the power distribution must be verified. Power distribution tests are performed at higher power levels (e.g., between 30% – 50% of rated power).<\/p>\n See also:<\/strong> Initial Test Programs for Water-cooled Nuclear Power Plants, Regulatory Guide 1.68, U. S. Nuclear Regulatory Commission, June 2013.<\/p>\n See also:<\/strong> Reload startup physics tests for pressurized water reactor, American National Standard, ANSI\/ANS – 19.6.1-2011, January 2011.<\/p>\n\n
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