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Rosatom Manufactures Full Refueling Batch of MOX Fuel for BN-800 Fast Reactor

Power News - Published on Thu, 30 Jul 2020

Image Source: Rosatom TVEL MOX Fuel
The Mining and Chemical Combine in Zheleznogorsk in Krasnoyarsk region in East Siberia has manufactured the first full reload batch of fresh uranium-plutonium MOX fuel for BN-800 fast reactor, operated at Beloyarsk NPP. The 169 fuel assemblies have been accepted by Rosenergoatom, the operator of Russian NPPs, and its authorized representative VPO ZAES, which has confirmed the consignment is ready for shipment. TVEL Fuel Company of Rosatom will supply the fresh MOX fuel for the Beloyarsk NPP in Zarechny, Sverdlovsk region in the Urals, providing the shipments till the end of 2020. The refueling at BN-800 is scheduled for January, 2021.

The BN-800 reactor was initially launched with a hybrid core, partially loaded with uranium fuel produced by Elemash, TVEL’s fabrication facility in Elektrostal (Moscow region), and partially with experimental MOX fuel bundles manufactured at the Research Institute of Atomic Reactors in Dimitrovgrad, Ulyanovsk region NIIAR. The first serial batch of 18 MOX fuel assemblies was loaded into BN-800 core in late 2019, and the rest of the fresh fuel were bundles with enriched uranium (in January, 2020, after an overhaul, the Beloyarsk NPP unit 4 successfully resumed operation).

The shift to the full load of BN-800 core with MOX fuel is scheduled for early 2022.

Distinct from traditional nuclear fuel with enriched uranium, MOX fuel pellets are based on the mix of nuclear fuel cycle derivatives, such as oxide of plutonium bred in commercial reactors, and oxide of depleted uranium which comes from defluorination of depleted uranium hexafluoride, the so-called secondary tailings of uranium enrichment facilities.

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Posted By : Yogender Pancholi on Thu, 30 Jul 2020
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