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The simulator sell
02 July, 2012
Although they may look the same as they did 40 years ago, nuclear power plant full-scope simulators are continually reengineered to keep them up to date and as faithful to the reference plant as possible. The emerging transition of analogue to digital control systems in nuclear power plant I&C and more demanding post-Fukushima severe accident management training requirements pose interesting technical challenges for simulators. By Will Dalrymple

Calculating LOCA system effects
14 February, 2012
The ability of the Westinghouse FULL SPECTRUM LOCA™ (FSLOCA™) best-estimate code to adequately capture the phenomena most important and dominant for small, intermediate, and large breaks of the cold leg is demonstrated for a three-loop Westinghouse PWR. Nominal scenarios, in which typical values are assumed for uncertainty parameters, illustrate the influence of break size on the important system-level phenomena predicted by the code. By M. A. Shockling, C. Frepoli and K. Ohkawa.