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Latest News
Vogtle-3 shuts down for valve issue
One of the new Vogtle units in Georgia was shut down unexpectedly on Monday last week for a valve issue that has since been investigated and repaired. According to multiple local news outlets, Georgia Power reported on July 17 that Unit 3 was back in service.
Southern Company spokesperson Jacob Hawkins confirmed that Vogtle-3 went off line at 9:25 p.m. local time on July 8 “due to lowering water levels in the steam generators caused by a valve issue on one of the three main feedwater pumps.”
A. Kumar, C. Sahraoui, S. Azam
Fusion Science and Technology | Volume 15 | Number 2 | March 1989 | Pages 1315-1323
Blanket Nucleonics Experiment | doi.org/10.13182/FST89-A39871
Articles are hosted by Taylor and Francis Online.
Under the ongoing experimental program of fusion neutronics at the LOTUS facility, a number of activation and tritium breeding measurements were recently completed. The presence of the Lithium Blanket Module (LBM) made a number of measurements also possible in it alone and in a number of more complex assemblies, incorporating it as one of the components. The foil activations were done in the following assemblies: (a) 6, 12 and 18 cm thick single Be slabs, (b) 5, 10 and 15 cm thick Pb slabs, (c) 27.7cm thick ThO2 slab, (d) 27.7cm ThO2 + 80cm thick LBM, (e) 5cm Pb + 27.7cm ThO2 + LBM, (f) 6cm Be + 27.7cm ThO2 + LBM. Only five activation reactions were measured : 90Zr(n,2n), 58Ni(n,2n), 93Nb(n,2n), 58Ni(n,p) and 115In(n,n′). The tritium breeding measurements were conducted in three assemblies : (i) LBM, (ii) 5cm Pb + LBM, (iii) 6cm Be + LBM. Both axial and off-axis measurements were made. All the experiments have been analyzed using the two dimensional discrete ordinates code DOT3.5 coupled to the first collision source evaluator GRTUNCL. The agreement between the measured and computed reaction rates is better than 10% for ThO2; it is not so good for others.