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Analysis of OECD/NEA medium 1000 MWth sodium-cooled fast reactor using the Monte Carlo serpent code and ENDF/B-VIII.0 nuclear data library
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作者 Fatima IAl-Hamadi Bassam AKhuwaileh +1 位作者 Peng Hong Liem Donny Hartanto 《Nuclear Science and Techniques》 SCIE EI CAS CSCD 2020年第12期77-87,共11页
This study presents a benchmark evaluation of the new ENDF/B-VIII.0 nuclear data library for the Organization for Economic Co-operation and Development/Nuclear Energy Agency Medium 1000 MWth sodium-cooled fast reactor... This study presents a benchmark evaluation of the new ENDF/B-VIII.0 nuclear data library for the Organization for Economic Co-operation and Development/Nuclear Energy Agency Medium 1000 MWth sodium-cooled fast reactor(SFR).The study presented herein covers both SFR core types,i.e.,metallic fueled(MET-1000)and oxide fueled(MOX-1000),simulated using the continuous-energy Monte Carlo Serpent2 code.The neutronics performances of the ENDF/B-VIII.0-based simulations were compared mainly to two libraries:ENDF/B-VII.1 and JENDL-4.0.The comparison includes several neutronics parameters evaluated for the beginning and end of the cycle conditions.These parameters include the effective multiplication factor keff,total effective delayed neutron fraction beff,sodium void reactivity(DqNa),Doppler constant(DqDoppler),and control rod worth(DqCR).In addition,a sensitivity study was used to reveal the major isotope/reaction pairs contributing to the discrepancy observed in the performance of the three libraries using 33 and 44-energy-group structures. 展开更多
关键词 Serpent ENDF/B-VIII.0 sodium-cooled fast reactor Sensitivity analysis
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Materials R & D for sodium-cooled fast reactor in China
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作者 XIE Chuchunn 《Baosteel Technical Research》 CAS 2010年第S1期73-,共1页
The study gives a brief introduction on development of innovated nuclear system in China,mainly focus on the materials R&D status for the sodium cooled fast reactor.With the high speed development of economy,China... The study gives a brief introduction on development of innovated nuclear system in China,mainly focus on the materials R&D status for the sodium cooled fast reactor.With the high speed development of economy,China needs a huge energy supply;at same time a more cleaning energy to reduce the carbon release is demanded.The nuclear energy is the most cleaning energy at present time,especially the innovated nuclear system which is so-called GenerationⅣpower plants has got its prior development due to its safety, economical and little fission production produced.Fast breeder reactor,as the priority development reactor type in the Gen-Ⅳnuclear system,is the key to the advanced closed fuel cycle technologies.China experimental fast reactor(CEFR ) has been completed the design,construction the synthesis system commissioning and reached its physical criticality on July 21,2010.At China Institute of Atomic Energy,the CEFR and other research facilities have been established,and extensive studies are planning to carry out in the areas of fuel and materials development.This will laid the foundation for the design and development of the future's CFR—900(China Demonstration Fast Reactor) and CCFR(China Commercial Fast Reactor). Highlights of some of materials R&D studies are discussed in this paper. 展开更多
关键词 CEFR sodium-cooled fast reactor sodium compatibility irradiation property mechanical property
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Numerical Analysis of Self-wastage Phenomena Caused by Sodium-Water Reaction in Sodium-Cooled Fast Reactor throuah Simulant Experiment
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作者 Sunghyon Jang Takashi Takata Akira Yamguchi 《Journal of Energy and Power Engineering》 2015年第6期539-547,共9页
A water leakage on the surface of heat transfer tube in a steam generator of sodium-cooled fast reactor causes SWR (sodium-water reaction). The SWR damages the leak surface and gives rise to the leak enlargement. Mo... A water leakage on the surface of heat transfer tube in a steam generator of sodium-cooled fast reactor causes SWR (sodium-water reaction). The SWR damages the leak surface and gives rise to the leak enlargement. Most of initial leakage starts from micro leak (less than 0.5 g/s). However, the leak rate increases more than two orders of magnitude and the resultant leak damages surrounding heat transfer tubes and it brings secondary failure of the heat transfer tube. Evaluation of the leak enlargement is necessary to assess the leak rate increase, so that evaluate the possibility of secondary failure. In this study, a simulant experiment, which uses neutralization reaction, is proposed to reproduce the leak enlargement. To examine the feasibility of the experiment, numerical simulations are carried out. From the result, a funnel-shaped nozzle enlargement is observed and the shape similar to the shape of the enlarged nozzle from the SWAT (sodium-water reaction test loop) experiment. 展开更多
关键词 sodium-cooled fast reactor self-wastage phenomena sodium-water reaction simulant experiment CFD (computationalfluid dyanamics).
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Development of an Evaluation Methodology for Fuel Discharge in Core Disruptive Accidents of Sodium-Cooled Fast Reactors
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作者 Kenji Kamiyama Yoshiharu Tobita Tohru Suzuki Ken-ichi Matsuba 《Journal of Energy and Power Engineering》 2014年第5期785-793,共9页
The purpose of the present study is to develop a methodology to evaluate fuel discharge through the CRGT (control-rod guide tube) during CDAs (core-disruptive accidents) of SFRs (sodium-cooled fast reactors), si... The purpose of the present study is to develop a methodology to evaluate fuel discharge through the CRGT (control-rod guide tube) during CDAs (core-disruptive accidents) of SFRs (sodium-cooled fast reactors), since fuel discharge will decrease the core reactivity and CRGTs have a potential to provide an effective discharge path. Fuel discharge contains multi-component fluid dynamics with phase changes, and, in the present study, the SFR safety analysis code SIMMER (Sn, implicit, multifield, multicomponent, Eulerian recriticality) was utilized as a technical basis. First, dominant phenomena affecting fuel discharge through the CRGT are identified based on parametric calculations by the SIMMER code. Next, validations on the code models closely relating to these phenomena were carried out based on experimental data. It was shown that the SIMMER code with some model modifications could reproduce the experimental results appropriately. Through the present study, the evaluation methodology for the molten-fuel discharge through the CRGT was successfully developed. 展开更多
关键词 sodium-cooled fast reactor core disruptive accident molten-fuel discharge FBR fast breeder reactor safety analysis code SIMMER.
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钠冷快堆的安全性 被引量:21
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作者 徐銤 《自然杂志》 北大核心 2013年第2期79-84,共6页
钠冷快堆具有许多固有安全特征:高的热导率,低压的钠系统,钠对快堆材料腐蚀甚微,熔融燃料与钠无剧烈相互作用,钠辐照后不产生长寿命放射性核素,有足够的运动粘度和热膨胀系数,易于设计非能动事故余热排出系统等。中国实验快堆是一座热功... 钠冷快堆具有许多固有安全特征:高的热导率,低压的钠系统,钠对快堆材料腐蚀甚微,熔融燃料与钠无剧烈相互作用,钠辐照后不产生长寿命放射性核素,有足够的运动粘度和热膨胀系数,易于设计非能动事故余热排出系统等。中国实验快堆是一座热功率65 MW、电功率20 MW的钠冷池式快堆,除具有上述固有安全特征外,它还设计有负的温度效应、功率效应和堆芯钠空泡效应,设有独立的非能动事故余热排出系统、非能动接钠盘、堆容器非能动超压保护系统、非能动冷却的堆芯熔化收集器等,以及具有完备可靠的主动安全系统。中国实验快堆达到了第四代核电系统的安全目标。 展开更多
关键词 钠冷快堆 固有安全特征 非能动安全性 中国实验快堆
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Preliminary design of an SCO_(2) conversion system applied to the sodium cooled fast reactor 被引量:1
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作者 Hongyi YANG Xiaoyan YANG +5 位作者 Jun YANG Quanbin ZHAO Xiaokun WANG Daotong CHONG Chanjuan TANG Chengyuan JIANG 《Frontiers in Energy》 SCIE CSCD 2021年第4期832-841,共10页
The supercritical carbon dioxide(SCO_(2))Brayton cycle has become an ideal power conversion system for sodium-cooled fast reactors(SFR)due to its high efficiency,compactness,and avoidance of sodiumwater reaction.In th... The supercritical carbon dioxide(SCO_(2))Brayton cycle has become an ideal power conversion system for sodium-cooled fast reactors(SFR)due to its high efficiency,compactness,and avoidance of sodiumwater reaction.In this paper,the 1200 MWe large pool SFR(CFR1200)is used as the heat source of the system,and the sodium circuit temperature and the heat load are the operating boundaries of the cycle system.The performance of different SCO_(2) Brayton cycle systems and changes in key equipment performance are compared.The study indicates that the inter-stage cooling and recompression cycle has the best match with the heat source characteristics of the SFR,and the cycle efficiency is the highest(40.7%).Then,based on the developed system transient analysis program(FR-Sdaso),a pool-type SFR power plant system analysis model based on the inter-stage cooling and recompression cycle is established.In addition,the matching between the inter-stage cooling recompression cycle and the SFR during the load cycle of the power plant is studied.The analysis shows that when the nuclear island adopts the flow-advanced operation strategy and the carbon dioxide flowrate in the SCO_(2) power conversion system is adjusted with the goal of maintaining the sodium-carbon dioxide heat exchanger sodium side outlet temperature unchanged,the inter-stage cooling recompression cycle can match the operation of the SFR very well. 展开更多
关键词 sodium-cooled fast reactor(sfr) supercritical carbon dioxide(SCO_(2)) brayton cycle load cycle
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钠冷快堆与常规火电汽轮机比较分析
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作者 高风 董慧 《科学技术创新》 2022年第30期180-184,共5页
钠冷快堆作为第四代核反应堆选型之一,具有广阔的发展前景。对钠冷快堆和常规火电汽轮机热力系统进行比较分析,对汽轮机结构差异进行分析。与同等功率常规火电汽轮机相比,钠冷快堆汽轮机具有容量大、参数低,采用汽水分离再热的热力特性... 钠冷快堆作为第四代核反应堆选型之一,具有广阔的发展前景。对钠冷快堆和常规火电汽轮机热力系统进行比较分析,对汽轮机结构差异进行分析。与同等功率常规火电汽轮机相比,钠冷快堆汽轮机具有容量大、参数低,采用汽水分离再热的热力特性;较大的低压排汽缸、无再热中压缸是其结构特点。 展开更多
关键词 钠冷快堆 常规火电 汽轮机 热力系统
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Formation of intermetallic compound at interface between rare earth elements and ferritic-martensitic steel by fuel cladding chemical interaction 被引量:1
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作者 Jun Hwan Kim Byoung Oon Lee +2 位作者 Chan Bock Lee Seung Hyun Jee Young Soo Yoon 《Journal of Rare Earths》 SCIE EI CAS CSCD 2012年第6期599-603,共5页
The intermetallic compounds formation at interface between rare earth elements and clad material were investigated to demonstrate the effects of rare earth elements on fuel-cladding chemical interaction (FCCI) behav... The intermetallic compounds formation at interface between rare earth elements and clad material were investigated to demonstrate the effects of rare earth elements on fuel-cladding chemical interaction (FCCI) behavior. Mischmetal (70Ce-30La) and Nd were prepared as rare earth elements. Diffusion couple testing was performed on the rare earth elements and cladding (9Cr2W steel) near the operation temperature of (sodium-cooled fast reactor) SFR fuel. The performance of a diffusion barrier consisting of Zr and V metallic foil against the rare earth elements was also evaluated. Our results showed that Ce and Nd in the rare earth elements and Fe in the clad material interdiffused and reacted to form intermetallic species according to the parabolic rate law, describing the migration of the rare earth element. The diffusion of Fe limited the reaction progress such that the entire process was governed by the cubic rate law. Rare earth materials could be used as a surrogate for high burnup metallic fuels, and the performance of the barrier material was demonstrated to be effective. 展开更多
关键词 intermetallic compound sodium-cooled fast reactor (sfr metallic fuel fuel-cladding chemical interaction (FCCI) rare earths BARRIER
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