Assemblies and fuel pin behaviour under irradiation in FBR-350
- 1. Mangyshlak Atomic Energy Complex, Aktau (Kazakhstan)
Description
The efficiency of all types of assemblies and fuel pins of the reactor BN-350 is considered in detail. The factors limiting the efficiency are indicated. The behaviour of assemblies with stainless steel ducts is studied. It is shown that the efficiency is restricted in this case by shape and dimensional changes of hexagonal ducts due to radiation swelling and radiation creep of structural materials. The problem of dimensional changes of ducts was solved for cores of reactors BN-350 and BN-600 after testing in BN-350 of experimental assemblies with ducts made of ferritic-martensitic steel 12Cr13Mo2NbVB. For fuel pins of the second type of loading with clad made of stainless steel 0Cr16Ni15Mo3Nb the efficiency is limited by burnup of 13% h.a. and damage dose of 90 dpa. To increase the burnup the core of the BN-350 is supplied by assemblies of modernized type with pins having a large gas plenum and clad made of the stainless steel 0Cr16Ni15Mo2Mn2TiVB that has a good resistance to irradiation. The efficiency of fuel pins of modernized assemblies in the reactor BN-350 core conditions is provided up to 15% h.a. and damage dose 105 dpa. (author)
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29057155.pdf
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Additional details
Publishing Information
- Imprint Title
- Influence of high dose irradiation on core structural and fuel materials in advanced reactors
- Imprint Pagination
- 261 p.
- Journal Page Range
- p. 93-105
- Report number
- IAEA-TECDOC--1039
Conference
- Title
- Technical committee meeting on influence of high dose irradiation on core structural and fuel materials in advanced reactors
- Dates
- 16-19 Jun 1997
- Place
- Obninsk (Russian Federation)
INIS
- Country of Publication
- International Atomic Energy Agency (IAEA)
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 29057155
- Subject category
- S22: GENERAL STUDIES OF NUCLEAR REACTORS; S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ATOMIC DISPLACEMENTS; BELOYARSK-3 REACTOR; BN-350 REACTOR; CLADDING; FUEL ASSEMBLIES; MARTENSITIC STEELS; PHYSICAL RADIATION EFFECTS; STAINLESS STEELS; THERMAL EXPANSION; TUBES
- Descriptors DEC
- ALLOYS; BREEDER REACTORS; CARBON ADDITIONS; DEPOSITION; DESALINATION REACTORS; EPITHERMAL REACTORS; EXPANSION; FAST REACTORS; FBR TYPE REACTORS; HIGH ALLOY STEELS; IRON ALLOYS; IRON BASE ALLOYS; LIQUID METAL COOLED REACTORS; LMFBR TYPE REACTORS; PHYSICAL RADIATION EFFECTS; POWER REACTORS; RADIATION EFFECTS; REACTORS; SODIUM COOLED REACTORS; STEELS; SURFACE COATING; TRANSITION ELEMENT ALLOYS
Optional Information
- Notes
- 7 refs, 7 figs, 3 tabs