Exact(11)
The core excess reactivity is ∼18 mk at BOC and reduces to 1 mk at 660 days.
Pin power peaking factors are less than 1.10 at BOC and RCCA worth is higher compared with reference assembly.
We have also found that core conditions at EOC result in larger decay ratios than those at BOC.
In large LOCA, 100% break LOCA results a high MCST of flooding phase at BOC due to high power peaking at the bottom part.
The results for the coolant void reactivity, however, show significant differences between the different datasets at BOC itself which increases further with burnup.
Small LOCA also introduces a critical break at 7.8% break which results high MCST at BOC because the scram and ADS are not actuated.
Similar(49)
All kinetic parameters calculated at the BOC situation that core configurations allow reactor operate at maximum power level (5 MW).
The core configuration of the reference core and burn-up of the fuel elements (in percent of the initial value of U) at the BOC is given in Fig. 2. The MTR_PC package has been developed by INVAP in order to perform neutronic, thermal hydraulic and shielding calculations of MTR-type reactors.
The kinetic parameters of all mixed and reference core configurations have been calculated at the BOC and the results are presented in Table 5. Contribution to βeff from each fissile nuclide is shown in Table 6 and also relative abundance of βeff for six groups of delayed neutron, for reactivity accident analysis, is given in table 7 for the first, reference and the fourth mixed core.
At last, the Boc groups subsequently were removed using HCl (4 mol/L) at room temperature, producing target compounds 4a 4h as hydrochloride salts.
Earlier rumours had put RBS's planned investment in BoC at up to $5 billion.
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