Power unit No. four of the Beloyarsk NPP with the BN-800 reactor has been related to the grid and resumed operations upon completion of the scheduled upkeep.
For the primary time the refueling has been carried out with uranium-plutonium gas solely. The first batch of 18 MOX gas assemblies was loaded into the reactor core in January 2020, and now 160 assemblies extra with contemporary MOX gas have been added (changing the assemblies with enriched uranium). Thus, the BN-800 core is now one-third crammed with progressive gas. From now on, solely MOX gas can be loaded into this reactor.
“Beloyarsk NPP has grow to be one step nearer to implementing the strategic objective of the nuclear trade growth – the brand new technological platform based mostly on closed nuclear gas cycle. This implies that utilizing MOX gas will make it potential to contain the uranium that isn’t at present used within the gas manufacturing and develop the useful resource feed-stock of the nuclear energy trade. In addition, the BN-800 reactor can re-use spent nuclear gas from different NPPs and decrease radioactive waste by “afterburning” long-lived isotopes from them. Taking under consideration the schedule, we will change to the core absolutely loaded with MOX gas already in 2022”, Ivan Sidorov, Director of the Beloyarsk NPP, commented.
The gas assemblies had been manufactured on the Mining and Chemical Combine (MCC, Zheleznogorsk, Krasnoyarsk area). Distinct from conventional nuclear gas with enriched uranium, MOX gas pellets are based mostly on the combination of nuclear gas cycle derivatives, akin to oxide of plutonium bred in business reactors, and oxide of depleted uranium which comes from defluorination of depleted uranium hexafluoride (UF6), the so-called secondary tailings of uranium enrichment services.
The BN-800 reactor was initially launched with a hybrid core, partially loaded with uranium gas produced by Elemash, TVEL’s fabrication facility in Elektrostal (Moscow area), and partially with experimental MOX gas bundles manufactured on the Research Institute of Atomic Reactors in Dimitrovgrad, Ulyanovsk area (NIIAR).
(Source: Rosatom) – Image: Beloyarsk NPP)
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