Design concepts for reactor assembly components of 500 MWe future SFRs

Chellapandi, P.; Puthiyavinayagam, P.; Balasubramaniyan, V.; Ragupathy, S.; Rajanbabu, V.; Chetal, S.C.; Raj, Baldev

doi:10.1016/j.nucengdes.2010.04.045

Cited by 24 publications

(3 citation statements)

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“…Stress analysis results indicate that the reduced thickness, i.e. 15 mm instead of 20 mm at redan meets the structural requirement [2]. The entire inner vessel shells will be of uniform thickness 15 mm which removes the discontinuity in thickness and hence stress concentration.…”

Section: Introductionmentioning

confidence: 93%

Estimation of Spring-Back of Single Torus Inner Vessel Sector by Finite Element Analysis

Gupta

Balasubramaniyan

2016

AMM

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Inner vessel in reactor assembly of sodium cooled fast reactor separates hot and cold pool sodium. The shape of inner vessel is optimized with reduced upper & lower shell diameters and toroidal redan for future Fast Breeder Reactor (FBR). This results in higher buckling strength and reduced thickness and hence reduced weight. To achieve the intricate toroidal shape with specified dimensional tolerances, a comprehensive technology development exercise was carried out successfully for the manufacture of inner vessel 30° sector. The achieved profile of the redan meets the specified dimensions and other design requirements. Spring-back observed in the sector was small. To verify the developmental exercise results, a finite element analysis (FEA) of forming of inner vessel sector was performed on finite element software ABAQUS. In this paper, FEA results and spring back are discussed. Spring back assessed is maximum at the center and relatively lower towards the edges for the redan with the chosen radius of 5980 mm.

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Section: Introductionmentioning

confidence: 93%

Estimation of Spring-Back of Single Torus Inner Vessel Sector by Finite Element Analysis

Gupta

Balasubramaniyan

2016

AMM

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“…From 2007 to 2009, R&D investigations in FHS aim to review design options [4,5], experimental feedback from previous French sodium-cooled fast reactors (SFR) and international reactors [6][7][8][9], and to cross this review analysis with recent innovative options proposed by the scientific community [10][11][12]. This work leads to a first set of innovative preselected options [13] and to determining several axes of R&D development to pursue for ASTRID design options.…”

Section: Science and Technology Of Nuclear Installationsmentioning

confidence: 99%

Study and Evaluation of Innovative Fuel Handling Systems for Sodium-Cooled Fast Reactors: Fuel Handling Route Optimization

Dechelette

Morin

Laffont

et al. 2014

Science and Technology of Nuclear Installations

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The research for technological improvement and innovation in sodium-cooled fast reactor is a matter of concern in fuel handling systems in a view to perform a better load factor of the reactor thanks to a quicker fuelling/defueling process. An optimized fuel handling route will also limit its investment cost. In that field, CEA has engaged some innovation study either of complete FHR or on the optimization of some specific components. This paper presents the study of three SFR fuel handling route fully described and compared to a reference FHR option. In those three FHR, two use a gas corridor to transfer spent and fresh fuel assembly and the third uses two casks with a sodium pot to evacuate and load an assembly in parallel. All of them are designed for the ASTRID reactor (1500 MWth) but can be extrapolated to power reactors and are compatible with the mutualisation of one FHS coupled with two reactors. These three concepts are then intercompared and evaluated with the reference FHR according to four criteria: performances, risk assessment, investment cost, and qualification time. This analysis reveals that the “mixed way” FHR presents interesting solutions mainly in terms of design simplicity and time reduction. Therefore its study will be pursued for ASTRID as an alternative option.

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“…4 indicates that the reduced thickness, i.e. 15 mm instead of 20 mm at redan meets the entire structural requirement [2]. The entire inner vessel shells will be of uniform thickness 15 mm which removes the structural discontinuity and hence stress concentration.…”

Section: Introductionmentioning

confidence: 99%

Manufacturing Technology Development of Single Torus Inner Vessel for Sodium Cooled Fast Reactor

Gupta

Sarkar

Sritharan

et al. 2014

Procedia Engineering

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Inner vessel in reactor assembly of pool type fast reactor separates hot and cold pool sodium. The shape of inner vessel is optimized with reduced upper & lower shell diameters and toroidal redan for future Fast Breeder Reactor (FBR). This results in higher buckling strength and reduced thickness and hence reduced weight. To achieve the intricate toroidal shape with specified dimensional tolerances, a comprehensive technology development exercise was undertaken for the manufacture of inner vessel sector. This paper discusses the details of development activities carried out towards manufacture of large size die and punch involving a number of trials, cold forming of sector of inner vessel, comprehensive global & local profile measurement using swing arm & other templates, and non-destructive examination. The achieved profile of the redan meets the specified dimensional and other design requirements. The successful completion of technology development activities for manufacture of a sector of inner vessel with innovative design features has demonstrated the indigenous manufacturing capability and given confidence for the design improvements incorporated.

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Design concepts for reactor assembly components of 500 MWe future SFRs

Cited by 24 publications

References 0 publications

Estimation of Spring-Back of Single Torus Inner Vessel Sector by Finite Element Analysis

Estimation of Spring-Back of Single Torus Inner Vessel Sector by Finite Element Analysis

Study and Evaluation of Innovative Fuel Handling Systems for Sodium-Cooled Fast Reactors: Fuel Handling Route Optimization

Manufacturing Technology Development of Single Torus Inner Vessel for Sodium Cooled Fast Reactor

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