Methodology for accident analyses of fusion breeder blankets and its application to helium-cooled pebble bed blanket

Panayotov, D.; Grief, Andrew; Merrill, B.J.; Humrickhouse, Paul W.; Trow, Martin; Dillistone, Michael; Murgatroyd, J. T.; Owen, Simon; Poitevin, Y.; Peers, Karen; Lyons, Alex; Heaton, Adam; Scott, Richard

doi:10.1016/j.fusengdes.2015.11.019

Cited by 13 publications

(7 citation statements)

References 20 publications

(30 reference statements)

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“…It addresses both the different sources of uncertainties-computer code models, system model representations, plant operating parameters and effect of scale as well as the specificity of the BB designs, materials, and phenomena. The applicability and robustness was demonstrated by the qualification of the models by comparison with finite element analyses and code-to-code comparisons and executed thus for sensitivity studies in HCLL [8] and HCPB [9] ITER test blanket systems (TBSs) specific accident scenarios: 32 h LOOP, LOFA and LOFA with aggravating failure of in-box LOCA. The reported advantages of the proposed method are its flexibility, practicality and progressive direct improved understanding.…”

Section: Highlights Of Presentationsmentioning

confidence: 99%

Summary of the 2nd International Workshop on Environmental, Safety and Economic Aspects of Fusion Power

Chen

Meng

et al. 2018

Nucl. Fusion

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The 2nd International Workshop on Environmental, Safety and Economic Aspects of Fusion Power (ESEFP) was held on 23 September 2017 in Kyoto, Japan. The workshop was initiated by the International Energy Agency Technology Collaboration Program on ESEFP. The workshop was well attended with approximately forty participants representing fifteen institutions in eight countries. The presentations covered safety issues and environmental impacts, availability improvement and risk control and socio-economic aspects of fusion power. Quantitative safety assessment of fusion reactors was discussed in depth with the consensus output presented as a plenary presentation at the 13th International Symposium on Fusion Nuclear Technology (ISFNT-13). The next workshop is planned to be held in conjunction with the ISFNT-14 in 2019.

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Section: Highlights Of Presentationsmentioning

confidence: 99%

Summary of the 2nd International Workshop on Environmental, Safety and Economic Aspects of Fusion Power

Chen

Meng

et al. 2018

Nucl. Fusion

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“…It was mentioned that management/preservation of experimental data is crucial for computer codes and safety methods development (knowledge management, reference case, licensing, and so forth). A powerful tool called phenomena identification and ranking tables (PIRTs) was introduced, the effective use of which has been demonstrated at F4E for Fusion Breeder Blankets Accident Analysis [5]. Suggestions for further work and challenges to be met on fusion safety were made particularly to facilitate international cooperation, for example meetings, seminars, and projects on specific subjects, establishing and maintaining a stronger and wider fusion safety community, broader technical exchanges with the fission safety community and industrial engagement.…”

Section: Highlights Of Presentationsmentioning

confidence: 99%

Summary of the 1st International Workshop on Environmental, Safety and Economic Aspects of Fusion Power

Stevens

Kim

et al. 2016

Nucl. Fusion

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The 1st International workshop on Environmental, Safety and Economic Aspects of Fusion Power (ESEFP) was held on 13 September 2015 at Jeju Island, South Korea. The workshop was initiated by the International Energy Agency Implementing Agreement on a Co-operative Program on ESEFP. The workshop was well attended with about forty participants representing twelve institutions in ten countries. The presentations covered safety issues and environmental impacts, availability improvement and risk control and socio-economic aspects of fusion power. Safety and licensing gaps between DEMO and ITER were discussed in depth with the consensus output presented as a plenary presentation at the 12th International Symposium on Fusion Nuclear Technology (ISFNT-12). The next workshop is planned to be held in conjunction with the ISFNT-13 in 2017.

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“…Rudimentary MHD correlations are implemented in RELAP5-3D [12] and MARS-FR [13] but are limited to straight rectangular/circular ducts and, thus, do not support any treatment for junctions, manifolds, etc. Basic MHD modelling capabilities have been implemented in MELCOR 1.8.5 and 1.8.6, which have been modified for the study of fusion-relevant systems [14][15][16]. Moreover, pursuing the quest for the realization of a MHD system-level tool, a novel code called MHD-SYS has been developed that features models for the simulation of multiple electrical-coupled ducts and heat transfer for basic layouts, whereas coupling with CFD codes is employed to supply the system code with reliable input data for the behaviour of the flow in complex geometrical elements [17].…”

Section: Introductionmentioning

confidence: 99%

Development of a RELAP5/MOD3.3 Module for MHD Pressure Drop Analysis in Liquid Metals Loops: Verification and Validation

et al. 2021

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Magnetohydrodynamic (MHD) phenomena, due to the interaction between a magnetic field and a moving electro-conductive fluid, are crucial for the design of magnetic-confinement fusion reactors and, specifically, for the design of the breeding blanket concepts that adopt liquid metals (LMs) as working fluids. Computational tools are employed to lead fusion-relevant physical analysis, but a dedicated MHD code able to simulate all the phenomena involved in a blanket is still not available and there is a dearth of systems code featuring MHD modelling capabilities. In this paper, models to predict both 2D and 3D MHD pressure drop, derived by experimental and numerical works, have been implemented in the thermal-hydraulic system code RELAP5/MOD3.3 (RELAP5). The verification and validation procedure of the MHD module involves the comparison of the results obtained by the code with those of direct numerical simulation tools and data obtained by experimental works. As relevant examples, RELAP5 is used to recreate the results obtained by the analysis of two test blanket modules: Lithium Lead Ceramic Breeder and Helium-Cooled Lithium Lead. The novel MHD subroutines are proven reliable in the prediction of the pressure drop for both simple and complex geometries related to LM circuits at high magnetic field intensity (error range ±10%).

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Methodology for accident analyses of fusion breeder blankets and its application to helium-cooled pebble bed blanket

Cited by 13 publications

References 20 publications

Summary of the 2nd International Workshop on Environmental, Safety and Economic Aspects of Fusion Power

Summary of the 2nd International Workshop on Environmental, Safety and Economic Aspects of Fusion Power

Summary of the 1st International Workshop on Environmental, Safety and Economic Aspects of Fusion Power

Development of a RELAP5/MOD3.3 Module for MHD Pressure Drop Analysis in Liquid Metals Loops: Verification and Validation

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