| Autor: |
V. N. Golovanov, A. A. Mayorshin, V. A. Tsykanov, V. G. Dvoretsky, V. A. Kisly, A. E. Novoselov, O. V. Shishalov |
| Rok vydání: |
2001 |
| Předmět: |
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| Zdroj: |
Volume 2: Mgmt. Low/Interm. Level Waste; Spent Fuel; Economics/Analyses for Waste Mgmt.; Radiological Characterization/Application Release Criteria; Panel Sessions; Solid Waste Reduction/Treatment; Current Activities in Central/Eastern Europe; Environmental Remediation Technology; LL/ILW; HLW/Spent Fuel; Chernobyl; D&D Waste; Performance Assessment; MOX and Spent UOX; D&D Nuclear Reactors; Decommissioning of Other Nuclear Facilities. |
| Popis: |
By the moment SSC RF RIAR has carried out a comprehensive scope of R&D activities to validate vibropac oxide fuel pins serviceability in fast and thermal reactors. In fulfilling the activities physical-mechanical and technologic characteristics of granulated fuel have been studied, in-pile tests and material examinations have been carried out for mock-up, experimental and pilot fuel pins of the BN-type (in the BOR-60, BN-350 and BN-600 reactors) and the VVER type (in the SM-2 and MIR). More than 30 000 fuel pins have been tested up to nowr. The BOR-60 standard fuel assemblies and experimental fuel pins in dismantled FA have achieved peak burnups of 30%h.a. and 32.3%h.a., respectively. UPuO2 vibropac fuel pins have been tested up to the peak burnup of 10.8%h.a. in the BN-600 and up to 43000 MWday/t in the MIR. Besides, experimental fuel pins, using (UO2+Np) fuel composition, have been tested. Burnup of 16.4% has been achieved. Tests are under way. According to MINATOM Concept on the disposition of plutonium to be released as a result of nuclear weapon dismantling State Scientific Center of Russian Federation Research Institute of Atomic Reactors started practical implementation of the MINATOM Concept on converting weapon grade plutonium into MOX-fuel using pyroelectrochemical processing and vibropacking technology. To date 32 fuel assemblies have been fabricated for the BOR-60 and 3 FA for the BN-600. The report presents main results of postirradiation examinations for vibropac oxide fuel pins. It is shown, that problems of thermal-mechanical and chemical interactions in fuel pins, using vibropac (UPuO2 + U) fuel, have already been solved and serviceability of fast reactor fuel pins depends on cladding material selection. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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