Pressure-induced charge transfer of Prussian blue analogues Cu0.64Mn0.86[Fe(CN)6]⋅nH2O
作者：
Liu, Min;Lu, Zeyi;Ding, Xiaotong;Chen, Haiwen;Guo, Zhuhui;...
期刊：
Chemical Physics Letters ,2020年754:137641 ISSN：0009-2614
通讯作者：
Xia, Yanfang
作者机构：
[Guo, Zhuhui; Xiao, Jingshui; Chen, Haiwen; Liu, Min; Lu, Zeyi; Ding, Xiaotong; Hu, Shengli; Xia, Yanfang] Univ South China, Coll Nucl Sci & Technol, Hengyang 421001, Peoples R China.;[Xia, Yanfang] Cent South Univ, Natl Key Lab Powder Met, Changsha 410006, Peoples R China.
通讯机构：
[Xia, Yanfang] U;Univ South China, Coll Nucl Sci & Technol, Hengyang 421001, Peoples R China.
关键词：
Mössbauer spectroscopy;Pressure-induced;Prussian blue analogues
摘要：
The Prussian blue analogue Cu0.64Mn0.86[Fe(CN)6]⋅nH2O was synthesized by coprecipitation method and pressurized to 0 MPa, 1 MPa, 20 MPa, 30 MPa, 40 MPa, respectively. The effect of pressure on its properties was investigated by X-ray diffraction and Mössbauer spectroscopy. According to XRD results, the sample has a face-centered cubic (Fm-3m) structure. As the pressure increases, the lattice parameters become slightly smaller, but no new high-pressure phase is generated. The results of the Mössbauer spectrum show that as the pressure increases, the singlet of Cu0.64Mn0.86[Fe(CN)6]⋅nH2O increases, and the doublet decreases. Its indicate that the pressure-induced charge is transferred from CuII/MnII to FeIII and forms a mixed-valence ferricyanide system. © 2020 Elsevier B.V.
语种：
英文
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A fuzzy-PID composite controller for core power control of liquid molten salt reactor
作者：
Zeng, Wenjie;Jiang, Qingfeng;Xie, Jinsen;Yu, Tao*
期刊：
Annals of Nuclear Energy ,2020年139:107234 ISSN：0306-4549
通讯作者：
Yu, Tao
作者机构：
[Jiang, Qingfeng; Zeng, Wenjie; Xie, Jinsen; Yu, Tao] Univ South China, Sch Nucl Sci & Technol, Hengyang City 421001, Peoples R China.
通讯机构：
[Yu, Tao] U;Univ South China, Sch Nucl Sci & Technol, Hengyang City 421001, Peoples R China.
关键词：
Core power control;Fuzzy-PID composite controller;Molten Salt Breeder Reactor;PID control
摘要：
As the fluidity of molten salt fuel in liquid molten salt reactor, it is difficult to build an accurate mathematical model for the core power control system. In order to solve the problem, a fuzzy-PID composite control method is presented. First, a nonlinear model of liquid molten salt reactor core is established by two-region model. Then, the nonlinear model is linearized by linearization method of small perturbation with the single-input single-output model. In order to draw on the merits of fuzzy controller and PID controller, a fuzzy-PID composite controller is designed. The composite controller can control a system by automatically switching between fuzzy control and PID control according to the range of error. The results of the simulation show that the fuzzy-PID composite controller combines the merits of the two control methods, and its synthetic qualities are better than the common PID controller and the basic fuzzy controller. © 2019
语种：
英文
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基于进化多目标遗传算法的辐射屏蔽优化方法研究
作者：
张震宇;赵世伦;陈珍平;李玥航;夏羿;...
期刊：
核动力工程 ,2020年41(S01):124-129 ISSN：0258-0926
通讯作者：
Chen, Zhenping(chzping@usc.edu.cn)
作者机构：
[张震宇; 赵世伦; 陈珍平; 李玥航; 夏羿; 于涛] School of Nuclear Science and Technology, University of South China, Hengyang;Hunan;421001, China;Hunan Engineering and Technology Research Center for Virtual Nuclear Reactor, Hengyang;[张震宇; 赵世伦; 陈珍平; 李玥航; 夏羿; 于涛] Hunan
关键词：
遗传算法;辐射屏蔽;多目标优化;特种核动力
摘要：
为弥补传统经典遗传算法辐射屏蔽设计方法的不足,满足特种核动力装置所需的精确辐射屏蔽设计的需求,采用进化多目标遗传算法对辐射屏蔽系统材料、结构等关键设计参数进行自动调整与迭代优化;开发了反应堆辐射屏蔽多目标智能优化平台,并利用参考模型对本文方法及平台开展了初步验证。结果表明,本文提出的方法可快速获得满足多目标约束的优化辐射屏蔽方案,并证明了多目标遗传算法在辐射屏蔽优化应用中的可行性和有效性。
语种：
中文
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FCM燃料堆内行为模拟及结构设计研究
作者：
周毅;刘仕超;陈平;李垣明;辛勇;...
期刊：
核动力工程 ,2020年41(5):197-200 ISSN：0258-0926
作者机构：
[周毅; 刘仕超; 陈平; 李垣明; 辛勇; 刘振海; 张林; 谷明非; 赵艳丽] Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu;610213, China;[乐韵琳] School of Nuclear Science and Technology, University of South China, Hengyang;Hunan;421001, China
关键词：
FCM燃料;热力学行为;结构优化;失效概率
摘要：
本文采用二维特征模型模拟不同无燃料区厚度全陶瓷微封装弥散(FCM)燃料的热力学行为,在保证堆芯装载要求的条件下,研究不同结构FCM燃料SiC基体和包覆燃料颗粒SiC层的应力状态。通过优化无燃料区厚度,调整TRISO颗粒间的间距,保证无燃料区和SiC层同时具有较低的应力水平。分析了无燃料区厚度为100 ~ 500 μm时基体SiC、无燃料区以及SiC层的应力分布,结果表明,基体SiC和SiC层最大应力随无燃料区厚度增大而增大,而无燃料区的最大应力则随其厚度增大而降低。当无燃料区厚度为400 μm时,无燃料区和SiC层均处于较低的应力状态,无燃料区SiC基体应力约为400 MPa,而SiC层的最大环向应力约为200 MPa,其失效概率约为2.5×10~(-4)。因此,当无燃料区厚度为400 μm时,FCM燃料既能维持芯块结构完整,又能保证SiC层具有较低的失效概率。结构优化为FCM燃料的应用提供了基础。
语种：
中文
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基于弦长抽样方法的弥散燃料蒙特卡罗中子输运模拟
作者：
陈珍平;郭倩;于涛;张震宇;马辉强;...
期刊：
核动力工程 ,2020年41(6):62-68 ISSN：0258-0926
通讯作者：
Guo, Qian(guo_qian33@163.com)
作者机构：
[陈珍平; 于涛; 张震宇; 马辉强; 谢金森] School of Nuclear Science and Technology, University of South China, Hengyang;421001, China;[郭倩] School of Resource Environment and Safety Engineering, University of South China, Hengyang;Hunan Engineering and Technology Research Center for Virtual Nuclear Reactor, Hengyang;[陈珍平; 郭倩; 于涛; 张震宇; 马辉强; 谢金森] 421001, China<&wdkj&>Hunan Engineering and Technology Research Center for Virtual Nuclear Reactor, Hengyang
通讯机构：
School of Resource Environment and Safety Engineering, University of South China, Hengyang, China
关键词：
弦长抽样;燃料颗粒;弥散燃料;蒙特卡罗;中子输运
摘要：
弥散燃料因具有燃耗深、包容裂变产物能力强和导热性好等优点而被广泛应用于新型核能系统设计中。然而,弥散燃料因其燃料颗粒在基体材料中的随机分布特性给传统中子输运模拟方法带来了新挑战。基于弦长抽样法发展了弥散燃料蒙特卡罗中子输运计算方法和数值模拟程序,其可以实现弥散燃料的在线建模,充分考虑中子输运过程中燃料颗粒在基体材料中的随机分布特性,快速获得准确可靠的中子输运模拟结果。利用数值例题对本文方法及程序开展了基准验证,证明了本文方法及程序在弥散燃料临界计算中的正确性。
语种：
中文
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基于CFD的池式快堆多物理耦合分析方法研究
作者：
赵鹏程;刘紫静;于涛;刘佩琪;谢金森;...
期刊：
核动力工程 ,2020年41(6):36-44 ISSN：0258-0926
通讯作者：
Liu, Zijing(liuzijing1123@163.com)
作者机构：
[赵鹏程; 刘紫静; 于涛; 刘佩琪; 谢金森; 陈珍平] School of Nuclear Science and Technology, University of South China, Hengyang;421001, China;Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu;610213, China;Cooperative Innovation Center for Nuclear Fuel Cycle Technology and Equipment, University of South China, Hengyang
关键词：
池式快堆;多物理耦合;计算流体力学(CFD);点堆动力学模型;燃料棒传热模型
摘要：
基于临界/次临界点堆中子动力学模型、燃料棒传热模型、热交换器和多孔介质等辅助热工水力模型,采用显式迭代和动态链接库技术(DLL),利用商用计算流体力学(CFD)程序FLUENT的用户自定义函数(UDF)实现中子动力学、燃料棒热传导等和快堆堆池冷却剂流动换热的耦合计算,开发池式快堆多物理耦合计算程序CFD/PF.采用CFD/PF开展小型自然循环铅铋快堆SNCLFR-10无保护超功率事故(UTOP)模拟,并与国际知名快堆多物理耦合分析程序SIMMR-III的计算结果开展Code-to-Code对比分析.研究结果表明:CFD/PF与SIMMER-III的分析结果吻合良好,耦合程序的开发取得了初步成功,可用于分析池式快堆堆池内的复杂三维流动和换热现象.
语种：
中文
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基于非支配排序遗传算法的辐射屏蔽多目标优化方法研究
作者：
曹奇锋;张震宇;陈珍平;马辉强;于涛
期刊：
核动力工程 ,2020年41(01):167-171 ISSN：0258-0926
通讯作者：
Chen, Zhenping(chzping@usc.edu.cn)
作者机构：
[曹奇锋; 张震宇; 陈珍平; 马辉强; 于涛] School of Nuclear Science and Technology, University of South China, Hengyang;Hunan;421001, China;Hunan Engineering and Technology Research Center for Virtual Nuclear Reactor, Hengyang;[曹奇锋; 张震宇; 陈珍平; 马辉强; 于涛] Hunan
关键词：
辐射屏蔽;非支配排序;遗传算法;多目标优化
摘要：
为提高反应堆辐射屏蔽结构设计效率与设计性能,减少传统辐射屏蔽设计方法的主观经验影响。本文基于非支配排序遗传算法对反应堆屏蔽结构开展多目标优化方法研究,并开发了反应堆辐射屏蔽多目标优化计算分析程序;利用典型反应堆辐射屏蔽结构模型对此优化方法和计算程序开展了初步验证。结果表明,非支配遗传算法可正确有效地用于辐射屏蔽结构的设计,优化效果显著。
语种：
中文
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Evaluation of 222Rn and 220Rn discriminating concentration measurements with pinhole-based twin cup dosimeters using computational fluid dynamics simulations
作者：
Ye, Yongjun;Chung, Long Kiu;Zhou, Qingzhi* ;Kearfott, Kimberlee J.
期刊：
Radiation Measurements ,2020年134:106369 ISSN：1350-4487
通讯作者：
Zhou, Qingzhi
作者机构：
[Ye, Yongjun] Univ South China, Sch Resource Environm & Safety Engn, Hengyang 421001, Hunan, Peoples R China.;[Kearfott, Kimberlee J.; Chung, Long Kiu] Univ Michigan, Coll Engn, Ann Arbor, MI 48109 USA.;[Zhou, Qingzhi] Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Hunan, Peoples R China.
通讯机构：
[Zhou, Qingzhi] U;Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Hunan, Peoples R China.
关键词：
Radon;Thoron;Computational fluid dynamics model;Nuclear-track detector;Discriminating measurement
摘要：
Pinhole-based twin cup dosimeters are capable of distinguishing 222Rn and 220Rn passively, as well as measuring their concentrations via Solid State Nuclear Track Detector films. However, the reliability of the measurements can be affected by environmental conditions and design of the device. To evaluate the significance of diffusion coefficient of air, radius, length, and number of pinholes, as well as radius and length of the twin cups on the effectiveness of the device, computational fluid dynamics models were developed for 14 scenarios. Concentration distributions of 222Rn and 220Rn were obtained, with their transmission factors each calculated and compared for the twin cups and for the pinhole(s). The results suggest that little to no impact was made on 222Rn's transmission factors, despite the change in diffusion coefficient and dimensions of the pin hole and the twin cup. However, for 220Rn, transmission factors significantly increased with an increase in pinhole radius, number of holes, or diffusion coefficient, or a decrease in pinhole length, twin cup length, or twin cup radius. © 2020
语种：
英文
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Research on fast intelligence multi-objective optimization method of nuclear reactor radiation shielding
作者：
Song, Yingming* ;Zhang, Zehuan;Mao, Jie;Lu, Chuan;Tang, Songqian;...
期刊：
Annals of Nuclear Energy ,2020年149:107771 ISSN：0306-4549
通讯作者：
Song, Yingming
作者机构：
[Mao, Jie; Song, Yingming; Zhang, Zehuan] Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Peoples R China.;[Xiao, Feng; Lu, Chuan; Tang, Songqian; Lyu, Huanwen] Nucl Power Inst China, Sci & Technol Reactor Syst Design Technol Lab, Chengdu 610213, Peoples R China.
通讯机构：
[Song, Yingming] U;Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Peoples R China.
关键词：
MSGD;Multi-objective optimization;NSGA-II;Radiation shielding
摘要：
Safety and lightweight optimization are significant in developing high-performance compact nuclear reactors. We proposed the reactor radiation shielding optimization method by coupling genetic algorithm and neural network. The engineering design is a multi-objective and multi-constrained complex optimization problem. Thus, we improved it by non-dominated sorting genetic algorithm (NSGA-II) and mini-batch stochastic gradient descent (MSGD), and proposed an adaptive mutation rate operator to improve the global searching capability. The multi-objective optimization models were constructed to verify the feasibility of the method. The optimization results proved it can find the Pareto-optimal front of reactor shielding designs precisely and its calculation speed is two orders of magnitude faster than the pure Monte Carlo (MC) method. By contrast with MC, the method can reduce the calculation time cost and have similar computational accuracy, which demonstrated the applicability and effectiveness of the method in the reactor shielding design applications. © 2020 Elsevier Ltd
语种：
英文
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Study on switching control of PWR core power with a fuzzy multimodel
作者：
Jiang, Qingfeng;Liu, Yinuo;Zeng, Wenjie* ;Yu, Tao*
期刊：
Annals of Nuclear Energy ,2020年145:107611 ISSN：0306-4549
通讯作者：
Zeng, Wenjie;Yu, Tao
作者机构：
[Liu, Yinuo; Jiang, Qingfeng; Zeng, Wenjie; Zeng, WJ; Yu, Tao] Univ South China, Dept Nucl Sci & Technol, Hengyang City 421001, Peoples R China.
通讯机构：
[Zeng, WJ; Yu, T] U;Univ South China, Dept Nucl Sci & Technol, Hengyang City 421001, Peoples R China.
关键词：
Composite control;Core fuzzy multimodel;Core power;Fuzzy switching
摘要：
As a reactor core has time-varying and nonlinear characteristics, it is difficult to achieve an ideal control effect with traditional control theory. To optimize the core power control performance, a compound control scheme is formulated that is composed of multiple controllers by weighting and switching. Firstly, the nonlinear model of a reactor core is transformed into a transfer function model. With the triangular membership function, five transfer function models under different core powers are weighted to establish the core fuzzy multimodel. Secondly, based on the fuzzy multimodel, direct switching principle and fuzzy switching principle are used to design the core power composite controller. Finally, dynamic simulation is carried out to determine the effectiveness of the core fuzzy multimodel and the performance of the switching control system. The result shows that the core fuzzy multimodel is effective and that two kinds of composite controllers can achieve good control of core power. © 2020
语种：
英文
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LQG/LTR controller with simulated annealing algorithm for CIADS core power control
作者：
Zeng, Wenjie;Li, Jinyang;Hui, Tianyu;Xie, Jinsen;Yu, Tao*
期刊：
Annals of Nuclear Energy ,2020年142:107422 ISSN：0306-4549
通讯作者：
Yu, Tao
作者机构：
[Li, Jinyang; Hui, Tianyu; Zeng, Wenjie; Xie, Jinsen; Yu, Tao] Univ South China, Dept Nucl Sci & Technol, Hengyang City 421001, Peoples R China.
通讯机构：
[Yu, Tao] U;Univ South China, Dept Nucl Sci & Technol, Hengyang City 421001, Peoples R China.
关键词：
CIADS core;LQG/LTR controller;Simulated annealing algorithm
摘要：
The purpose of this study is to design the core power controller for China Initiative Accelerator Driven System which only relies on the external neutron source to realize core power adjustment. Based on the state space model of CIADS core, a Linear Quadratic Gaussian controller with Loop Transfer Recovery (LQG/LTR) is adopted as the strong robustness. As the parameters of traditional LQG/LTR controller are selected by judging the singular value curve, it is difficult to achieve the optimum. To find the optimal parameters of the LQG/LTR controller, simulated annealing algorithm (SAA) is used. With the state space model of CIADS core, the core power control system is established by using the LQG/LTR controller with SAA. The core power step simulation and the external neutron source disturbance simulation are carried out. The results show that the control effect of LQG/LTR controller with SAA is better than that of traditional LQG/LTR controller. © 2020
语种：
英文
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液态熔盐堆堆芯功率模糊PID控制
作者：
姜庆丰;谢金森;曾文杰;陈乐至
期刊：
核动力工程 ,2020年41(01):93-98 ISSN：0258-0926
通讯作者：
Zeng, Wenjie(zengwenjie0218@163.com)
作者机构：
[姜庆丰; 谢金森; Zeng, Wenjie; 陈乐至] School of Nuclear Science and Technology, University of South China, Hengyang;Hunan;421001, China;[姜庆丰; 谢金森; Zeng, Wenjie; 陈乐至] Hunan;[姜庆丰; 谢金森; Zeng, Wenjie; 陈乐至] 421001, China
关键词：
液态熔盐堆;堆芯功率;模糊PID控制器
摘要：
液态熔盐堆采用熔融氟化盐为燃料,燃料熔盐出口温度是衡量熔盐堆安全的重要指标。通过堆芯功率控制可实现燃料熔盐出口温度控制。将液态熔盐堆堆芯划分成内区和外区,并基于能量守恒原理建立堆芯非线性模型,采用微扰理论对非线性模型进行线性化。基于堆芯线性化模型,采用模糊比例-积分-微分(PID)控制器设计堆芯功率控制系统。以熔盐增殖堆(MSBR)为例,开展堆芯功率控制仿真。结果表明,引入10~(-3)、2×10~(-3)阶跃反应性时,模糊PID控制器可以减小系统响应的上冲幅度和超调量,并且在堆芯功率发生了较大的负荷变化时,模糊PID控制器可以对堆芯功率的变化实现良好跟踪。故所采用的模糊PID控制器具有良好的动态性能,可实现对堆芯功率的良好控制。
语种：
中文
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Temperature-dependent hysteretic two-step spin crossover in two-dimensional Hofmann-type compounds
作者：
Li, Yue;Liu, Min* ;Yao, Zi-Shuo;Tao, Jun*
期刊：
DALTON TRANSACTIONS ,2020年49(21):7245-7251 ISSN：1477-9226
通讯作者：
Tao, Jun;Liu, Min
作者机构：
[Tao, Jun; Li, Yue] Xiamen Univ, Coll Chem & Chem Engn, Xiamen 361005, Fujian, Peoples R China.;[Liu, Min] Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Hunan, Peoples R China.;[Yao, Zi-Shuo; Tao, Jun] Beijing Inst Thchnol, Sch Chem & Chem Engn, Minist Educ, Key Lab Cluster Sci, Liangxiang Campus, Beijing 102488, Peoples R China.
通讯机构：
[Tao, Jun] X;[Liu, Min] U;[Tao, Jun] B;Xiamen Univ, Coll Chem & Chem Engn, Xiamen 361005, Fujian, Peoples R China.;Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Hunan, Peoples R China.
摘要：
Hofmann-type spin-crossover (SCO) frameworks attract much attention due to their predictable structures and diverse SCO behaviours. In this paper, we report two isostructural two-dimensional (2D) Hofmann-type SCO frameworks [FeII(ppe)2MII(CN)4]·3H2O (ppe = 1-(2-pyridyl)-2-(4-pyridyl)ethylene and M = Pd for1and Pt for2). X-ray crystallographic studies, magnetic measurements and Mössbauer spectra jointly reveal that both compounds undergo complete hysteretic two-step SCO,i.e.HS1.0 HS0.6-0.5LS0.4-0.5? LS1.0conversion with thermal hysteresis loops of 14 K and 28 K wide for1and 13 K and 26 K wide for2. The dehydrated samples,1-dehydrated and2-dehydrated, display different SCO behaviours, unveiling that the SCO behaviours are affected by guest water molecules. © The Royal Society of Chemistry 2020.
语种：
英文
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Transmutation of radioactive cesium and iodine using gamma-radiation from light nuclei under proton bombardment
作者：
Zhu, Zhi-chao;Gong, Wei-ting;Lan, Hao-yang;Luo, Wen*
期刊：
Annals of Nuclear Energy ,2020年140:107158 ISSN：0306-4549
通讯作者：
Luo, Wen
作者机构：
[Lan, Hao-yang; Gong, Wei-ting; Zhu, Zhi-chao; Luo, Wen] Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Peoples R China.
通讯机构：
[Luo, Wen] U;Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Peoples R China.
关键词：
Li-7 (p, gamma);Photo-transmutation;Long-lived nuclear waste;Resonance
摘要：
In this work, we propose a novel approach to transmute long-lived radionuclides, by using γ-radiation emitted in the bombardment of light nuclei by low-energy proton beams. We used Monte Carlo simulations to demonstrate the feasibility of photo-transmutation of hazardous radioactive cesium and iodine by the γ-radiation from proton capture in 7Li. The dependence of the γ-ray the proton energy (in the region of the 441 keV resonance) and on the thickness of 7Li target are presented. For 10 mA proton beam, the γ-ray yield is estimated to be 2.1 × 109 s−1. When such γ-radiation irradiates on the CsI target, the transmutation yield reaches 5 × 107 s−1, which is comparable to the value resulted by the state-of-the-art Laser-Compton scattering γ-ray source. The proton-induced resonance γ-ray source can therefore be a promising approach for nuclear waste management. © 2019 Elsevier Ltd
语种：
英文
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基于认知模型与故障树的核电厂严重事故下人因失误分析
作者：
张力;陈帅;青涛;孙婧;刘朝鹏
期刊：
核动力工程 ,2020年41(03):137-142 ISSN：0258-0926
作者机构：
[张力; 陈帅] College of Nuclear Science and Technology, University of South China, Hengyang;Hunan;421001, China;[青涛] Hunan Institute of Technology, Hengyang;421002, China
关键词：
核电厂;严重事故;人因失误;认知模型;故障树
摘要：
为分析核电厂应急人员在处理严重事故时可能发生的人因失误,通过建立不同应急人员的认知模型及识别相应的行为影响因子,在认知功能的基础上识别出13种人因失误模式:信息来源不足、信息可靠性不佳、过早结束对参数的获取、重要数据处理不正确、缓解措施负面影响评估失误、选择不适用当前情景的策略、延迟决策、遗漏重要信息/警报、延迟发觉、软操作失误、信息反馈失效、设备安装/连接/操作失误、延迟实施,并基于故障树分析得出人因失误模式的主要根原因:交流失效、时间压力、事故发展的不确定性、信息接收延误、监视失误、人-机界面不佳和环境因素。分析结果可用于预测严重事故缓解进程中可能出现的人因失误,为核电厂实施严重事故管理和技术改进,以及保障严重事故工况下核电厂安全提供参考。
语种：
中文
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对SINBAD屏蔽基准题实验的模拟验证
作者：
黄浩;谢芹;于涛;谢金森;陈珍平;...
期刊：
核动力工程 ,2020年41(4):170-173 ISSN：0258-0926
通讯作者：
Yu, Tao(yutao29@sina.com)
作者机构：
[黄浩; 谢芹; 于涛; 谢金森; 陈珍平; 侯丞; 苏适] School of Nuclear Science and Technology, University of South China, Hengyang;Hunan;421001, China;Hunan Engineering and Technology Research Center for Virtual Nuclear Reactor, Hengyang;[黄浩; 谢芹; 于涛; 谢金森; 陈珍平; 侯丞; 苏适] Hunan
关键词：
屏蔽;验证;基准题
摘要：
为了验证屏蔽基准题的准确性,进一步完善我国的标准基准题库,采用蒙特卡罗MCNP程序精细建模计算方法,针对SINBAD屏蔽基准题库,选取其中具有代表性的3例基准题对其准确性进行评估验证。结果表明,模拟计算得到的结果在误差允许的范围内,能够给其他自主软件提供数据验证支持,可将验证结果归入我国屏蔽基准题数据库。
语种：
中文
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核电厂临时设备投运人员可靠性评估模型
作者：
陈帅;张力;青涛;林耀祖;李林峰;...
期刊：
核动力工程 ,2020年41(4):128-134 ISSN：0258-0926
通讯作者：
Zhang, Li(13807340602@139.com)
作者机构：
[陈帅; 张力; 陈潮] College of Nuclear Science and Technology, University of South China, Hengyang;Hunan;421001, China;[青涛] Institute of Human Factor Engineering and Safety Management, Hunan Institute of Technology, Hengyang;421002, China
关键词：
临时设备;人因可靠性;失效模式和影响分析;模糊语言;核电厂
摘要：
核电厂临时设备作为严重事故缓解的重要设施,其接入工序大多较为复杂。为了分析核电厂人员在临时设备投运时的可靠性,通过研究福岛核事故后改进项所增设临时设备接入行为的特征,基于人因失误模式和影响分析,定义人因失误发生概率、人因失误影响程度、人因失误可恢复概率为风险因子,结合专家评价与模糊语言理论提出一种临时设备投运人员可靠性评估模型。以全厂断电事故下移动电源的接入任务为例,应用所建模型获得了该任务中的人误模式重要度排序及合理的风险见解,验证了模型的可行性。
语种：
中文
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A functional variable universe fuzzy PID controller for load following operation of PWR with the multiple model
作者：
Zeng, Wenjie;Jiang, Qingfeng;Xie, Jinsen;Yu, Tao*
期刊：
Annals of Nuclear Energy ,2020年140:107174 ISSN：0306-4549
通讯作者：
Yu, Tao
作者机构：
[Jiang, Qingfeng; Zeng, Wenjie; Xie, Jinsen; Yu, Tao] Univ South China, Dept Nucl Sci & Technol, Hengyang City 421001, Peoples R China.
通讯机构：
[Yu, Tao] U;Univ South China, Dept Nucl Sci & Technol, Hengyang City 421001, Peoples R China.
关键词：
Functional Variable Universe Fuzzy PID controller;Load following operation;Multiple model;Pressurized Water Reactor
摘要：
To achieve core power control of Pressurized Water Reactor (PWR) over full power range under arbitrary initial power conditions, a global controller under the multiple model for reactor core load following is designed. Based on the nonlinear model of PWR core, the transfer function models at five power levels are chosen as local models of reactor core. The multiple model of PWR core in the global range of power level is the weighted sum of five local models with the triangle membership functions. Based on the multiple model of PWR core, a global controller, is contrived by five local controllers at different core power level with the Functional Variable Universe Fuzzy PID (FVUF-PID) controller. The simulation results show that the global controller has good convergence and performance robustness characteristics over a wide range of operational parameters. © 2019
语种：
英文
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核反应堆堆芯模糊多模型仿真系统开发与应用
作者：
陈乐至;曾文杰;于涛;谢金森;杜尚勉;...
期刊：
核动力工程 ,2019年40(3):146-149 ISSN：0258-0926
通讯作者：
Zeng, Wenjie(zengwenjie0218@163.com)
作者机构：
[陈乐至; Zeng, Wenjie; 于涛; 谢金森; 杜尚勉; 罗润] School of Nuclear Science and Technology, University of South China, Hengyang;Hunan;421001, China;[陈乐至; Zeng, Wenjie; 于涛; 谢金森; 杜尚勉; 罗润] Hunan;[陈乐至; Zeng, Wenjie; 于涛; 谢金森; 杜尚勉; 罗润] 421001, China
通讯机构：
School of Nuclear Science and Technology, University of South China, Hengyang, Hunan, China
关键词：
核反应堆堆芯;状态空间模型;模糊多模型;仿真系统
摘要：
单一功率水平处的堆芯模型无法准确地代表堆芯不同功率工况下的动态特性。为了解决这一问题,利用三角形隶属度函数对5个不同功率水平下的局部模型进行加权,建立堆芯模糊多模型,并开发模糊多模型仿真系统。以压水堆堆芯为对象,开展堆芯反应性和冷却剂进口温度的扰动仿真。结果表明,建立的堆芯模糊多模型仿真系统可适用于堆芯不同功率水平的仿真。
语种：
中文
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核电厂严重事故缓解进程中应急人员行为分析
作者：
陈帅;张力;青涛;李林峰;刘朝鹏;...
期刊：
核动力工程 ,2019年40(1):91-96 ISSN：0258-0926
通讯作者：
Zhang, Li(13807340602@139.com)
作者机构：
[陈帅; 张力] College of Nuclear Science and Technology, University of South China, Hengyang;Hunan;421001, China;[青涛] Hunan Institute of Technology, Hengyang;421002, China
通讯机构：
College of Nuclear Science and Technology, University of South China, Hengyang, Hunan, China
关键词：
核电厂;严重事故;严重事故管理导则;应急人员行为
摘要：
为了分析核电厂人员处理严重事故的行为特征,本文通过研究严重事故管理导则的特殊性,结合现场调研和操纵员、应急技术支持人员访谈,建立了严重事故缓解进程中的人员决策模型,识别了决策人员、执行人员的关键影响因子,为严重事故下的人因可靠性分析方法研究奠定基础.
语种：
中文
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