中国实验快堆动态模拟系统的建立

为了运用快系统安全分析程序ＯＡＳＩＳ对中国实验快堆进行安全和计算,初步建立了ＣＥＦＲ动态模拟系统。该系统将应用于ＣＥＦＲ的初步安全分析并将用来对ＣＥＦＲ的控制保护系统进行动态仿真研究。     

快中子脉冲堆周期计算机测量系统

简要介绍了中国快中子脉冲堆－Ⅱ堆周期计算机测量系统的硬件结构，工作原理和软件组成，给出了ＣＦＢＲ－Ⅱ堆裸堆带去耦部件系统和裸堆上布置有较多轻材料样品的系统的裂变产额－预加反应性关系。该测量系统使ＣＦＢＲ－Ⅱ堆周期测量实现了自动化和智能化，提高了测量数据在线处理的精度和速度。     

中国试验快堆（CEFR）典型事故工况下的瞬态分析

本文采用计算机仿真的方法，对我国首座试验快堆ＣＥＦＲ在几种设计基准事故下的动态响应过程进行了分析计算。计算结果表明，当保护停堆系统正常工作时，ＣＥＦＲ在所分析的事故下具有良好安全性。     

快脉冲堆运行中的辐射防护问题

本文以ＣＦＢＲ－Ⅱ快中子脉冲反应堆为例，依据初步的剂量监测结果和运行经验，讨论了在此类快脉冲堆运行中所遇到的主要辐射防护问题。     

辐射防护中常用缩略语(一)

ＡＬＡＲＡ　　ＡｓＬｏｗａｓＲｅａｓｏｎａｂｌｙＡｃｈｉｅｖａｂｌｅ（可合理达到的尽可能低）ＢＡＴ　　　ＢｅｓｔＡｖａｉｌａｂｌｅＴｅｃｈｎｏｌｏｇｙ（最佳可用技术）ＢＥＩＲ　　　Ｃｏｍｍｉｔｔｅｅｏｎｔｈｅｂｉｏｌｏｇｉｃａｌｅｆｆｅｃｔｓｏｆｉｏｎｉｚｉｎｇｒａｄｉａｔｉｏｎ（电离辐射生物效应委员会,美国）ＢＷＲ　　　ＢｏｉｌｉｎｇＷａｔｅｒＲｅａｃｔｏｒ（沸水堆）ＣＦＲ　　　ＣｏｄｅｏｆＦｅｄｅｒａｌＲｅｇｕｌａｔｉｏｎｓ（联邦法规,美国）ＤＯＥ　　　Ｕ．Ｓ．ＤｅｐａｒｔｍｅｎｔｏｆＥｎｅ…     

FFR一次辅助系统阻塞计氮气冷却系统实验研究

文章论证了我国第一座快堆ＦＦＲ一次辅助系统阻塞计冷却系统的设计方案；并根据ＦＦＲ一次辅助系统中阻塞计的设计参数、工作条件，实验给出和模拟不同阻塞计维持功率的情况下，氮气冷却系统的温度特性曲线；分析了此氮气冷却系统的热交换能力，实验证明该氮气冷却系统能够保证ＦＦＲ一次辅助系统阻塞计以程控模工作。     

入堆钠杂质含量标准的确定

对快中子核反应堆入堆钠中碳、氢、氧、氮等最主要的几种非金属杂质的含量标准进行了讨论；对我国第一座实验快堆（ＥＦＢＲ）入堆钠的杂质量值提出了作者的建议。     

高温堆燃料元件和包覆颗粒对裂变产物的滞留性能研究

高温气冷堆包覆燃料颗粒的包覆层是阻止放射性裂变产物释放的第一道屏障。本文在简介ＦＲＥＳＣＯ模型的基础上,采用ＦＲＥＳＣＯ２程序,计算了＾１３７Ｃｓ,＾９０Ｓｒ,＾１１０ｍＡｇ从包覆颗粒和燃料元件的释放份额,分析比较了包覆层和石墨基体对这几种核素的滞留性能,肯定了ＴＲＩＳＯ包覆层对金属裂变产物的滞留作用。     

EFFECT OF THE RATIO Th/U ON TL DATING ACCURACY

ＥＦＦＥＣＴＯＦＴＨＥＲＡＴＩＯＴｈ／ＵＯＮＴＬＤＡＴＩＮＧＡＣＣＵＲＡＣＹ￥Ｐ．Ｌ．Ｌｅｕｎｇ（梁宝鎏）；ＭｉｃｈａｅｌＪ．Ｓｔｏｋｅｓ（ＤｅｐａｒｔｍｅｎｔｏｆＰｈｙｓｉｃｓａｎｄＭａｔｅｒｉａｌｓＳｃｉｅｎｃｅ，ＣｉｔｙＰｏｌｙｔｅｃｈｎｉｃｏ...     

快堆热钠池的三维热工水力分析

采用多孔介质的方法，对中国实验快堆（ＣＥＦＲ）热钠池的复杂流场进行了数值模拟，计算结果与设计值符合得很好，并给出了流场分布，为中国实验快堆的进一步设计和安全性能评价提供了重要的参数。     

On the thermal hydraulics of Magnox reactor pressure vessel insulation: Part 1: Experimental determination of the thermal performance of multiple plate insulation

The thermal conductivity of multiple plate insulation used in ‘Magnox’ reactor pressure vessels has been investigated experimentally. In the reactor application the fluid within the insulation pack is carbon dioxide at 20 bar, however, in this experimental investigation the insulation was tested in air at lower pressures. The conductivity of the insulation was measured using a test facility based on the guarded hot plate method for a range of temperatures, pressures, and inclinations. Measurements were made both with the fluid within the insulation pack nominally stationary and with an imposed flow through it, simulating leakage through the insulation pack. The values of thermal conductivity obtained were similar to those for conventional high temperature insulation. The conductivity increased with increases in average temperature, pressure, and inclination, in all cases due to enhanced convection within the insulation. The introduction of forced flows into the insulation pack increased the effective conductivity still further.     

中国实验快堆额定工况下冷热钠池数值分析

应用计算软件STAR-CD对中国实验快堆(CEFR)正常运行工况中的额定工况进行了三维数值分析，使用多孔介质模型对屏蔽柱的影响进行了模拟，给出了冷热钠池的三维温度场和流场，与已有热工设计进行了比较，并着重分析了浮升力在数值模拟计算中的影响，为事故工况下的设备动态分析及相应的设备力学分析提供了数据。研究结果为CEFR的优化设计及事故分析提供了参考数据和技术支持。     

Analysis of (n, 2n) Cross Sections at 14.7 MeV in Region of Rare-Earths

Heat transfer by simultaneous conduction and radiation through ceramic fiber insulation is studied experimentally. The temperature profiles and the effective thermal conductivity are determined over a wide range of porosities of the insulation and of temperature provided at the hot boundary.

The resulting data are analyzed in detail to gain an understanding of the mechanism of heat transfer through such medium. A semi-empirical formula is derived for quantitatively predicting the thermal performance of ceramic fiber insulation. The formula incorporates as parameters the porosity and temperatures of the hot and cold boundaries.     

中国实验快堆空气热交换器热工流体力学研究

针对中国实验快堆事故余热排放系统空气热交换器的国内外研究现状,结合中国实验快堆工程建设的需要,建立了空气热交换器的数学模型,对其在自然循环条件下的热工流体力学特性进行了分析研究.     

Analysis of Thermal Stratification Behavior in CEFR Hot Plenum

Thermal stratification which occurs in the CEFR hot plenum after reactor trip has been regarded as an interesting thermal-hydraulics phenomena. The cold sodium in the bottom of the hot plenum will delay the formation of natural circulation in the reactor primary loop, which will have the bad effect on the reactor core cooling after accident. In the views of the integrity of the structure, the appearance of the thermal stratification phenomenon will cause the thermal stress of the reactor main vessel and internals.     

Experimental Study on Transient Behaviors of Gas in Thermal Insulation Media at Rapid Depressurization

Thermal insulation system is often used to high temperature gas-cooled reactors. In the present paper, transient behavior of the gas flow in thermal insulation media is experimentally studied in the case of sudden decrease of coolant pressure. The structure of these systems is capable of substituting for the simplified model that the gas in a container filled with porous insulation media exhausts from a balancing hole to the main flow. In the case of rapid depressurization, transient behaviors are measured by pressure sensors along an axial direction of the insulation layer, changing experimental parameters such as pressure gradient, opening of a balancing hole and packed density. The induced pressure is measured along the axial direction of the insulation layer. The induced pressure difference and the peak value of pressure difference are summarized with parameters. Lastly, a satisfactory agreement between experimantal and analytical results is obtained for several specified cases of testing.     

CEFR整体冷钠池及其辅助系统温度场三维数值模拟

利用流体力学软件CFX对中国实验快堆（CEFR）整体冷钠池及其辅助系统进行详细稳态模拟计算,并验证运行工况下的热工设计。计算结果表明：冷钠池内存在热分层和热分区现象,确实存在冷钠池上板的高温区,同时泵腔室上部的温度较其他区域的高。本工作为反应堆功率提升及运行提供了技术准备。     

中国实验快堆工程项目建设的进度管理

中国实验快堆是国内首座快中子反应堆,是国家＂863＂高技术研究发展计划能源领域的重大工程项目。2011年7月21日,中国实验快堆实现并网发电,工程项目建设目标得以实现。作为大型复杂的核电工程项目,进度管理工作是其全部项目管理活动的重要组成部分,文章全面论述了中国实验快堆工程项目建设的进度管理活动。实践证明中国实验快堆工程项目建设进度管理工作的开展科学、规范、高效,对于今后大型快堆核电厂工程建设具有可利用价值,并可资相关领域工作人员进行参考。     

China Experimental Fast Reactor（CEFR）：Engineering Progress of CEFR Project in 2005

2005年，工程建设取得新的进展，工程质量处于受控状态，项目管理水平进一步提升。     

中国示范快堆高性能冷阱净化能力试验研究

钠冷快堆采用冷阱作为净化钠中杂质的设备,目前中国实验快堆（CEFR）的冷阱净化杂质能力不能满足中国示范快堆（CFR600）各钠回路中杂质的净化需求。本文通过开展高性能冷阱净化能力试验,获得了不同温度下冷阱的溶解速率、净化速率、捕集能力和杂质容量。这些性能指标均达到了预期值,其捕集能力是CEFR一回路冷阱的2.33倍,是二回路冷阱的1.91倍。试验研究结果为CFR600冷阱结构的优化设计及冷阱性能分析软件的开发提供了依据,满足了CFR600一、二回路和乏组件转换桶钠净化系统关键设备的需求,实现了自主研发的高性能冷阱在CFR600工程上的成功应用。