IAEA推荐的操作干预水平OIL1和OIL2缺省值的导出及其适宜性的初步研究

本文简要介绍了操作干预水平(OIL)的概念、应用和IAEA建议的缺省值及其导出方法，运用有代表性的美国《反应堆安全研究》的事故源项和法国严重事故源项(S1，S2，S3)，着重研究了压水堆事故下OIL缺省值导出假定的两个参数R1(总有效剂量率和烟羽外照射剂量率的比值)、R2(甲状腺剂量率和烟羽外照射剂量率的比值)数值的合理性。初步研究表明，对所研究的事故类型，平均来说，R1、R2参数取值和相应的OIL1、OIL2缺省值是适宜的；但对不同事故类型计算得出的OIL与其缺省值存在一定的偏差。相对事故源项来说，事故天气条件以及距离对R1、R2的影响较小(PWR1-PWR7中R1、E2的数值随距离变化的最大值约为最小值的2倍；而在大气稳定度类别为A、D和F这三类气象条件下，PWR1-PWR6平均的R1、R2数值与缺省值假定计算条件设定值的最大偏差大约为50％)。因此，在实际应急响应中运用OIL缺省值时，需要进行修正或重新计算。     

天钢集团中板厂SVC动态无功补偿和谐波滤波系统

天津钢铁集团中板厂的负载为冲击性交-交变频机,交-交变频机的谐波除了特征谐波外,还有大量旁频。电网中谐波电流大,功率因数低,电压波动超标。SVC系统为FC TCR系统,通过测试负载电流和普通直流机负载电流,分析频率特性,得出交交变频机的谐波滤波可以按照直流机的滤波装置来设计,同时TCR本身产生的谐波必须予以考虑。     

水解酸化-SBR法处理米粉厂废水工程实践

介绍了水解酸化—SBR法处理米粉厂生产废水的工程实例．经过两年多的连续运行，处理效果稳定．多次监测结果表明：出水CODcr达到77．1mg／L，BOD5达到24．3mg／L，SS达到20．6mg／L，其去除率达到90％以上，完全达到国家规定的《污水综合排放标准》(GB8978—96)的新改扩一级标准．     

Application of advanced core process monitoring procedures in German power reactors

The nuclear reactor core design and the nuclear fuel management have been changed remarkable during the last few years. This development was initiated by increasing costs for the fuel recycling and nuclear waste storage. The fuel material, the fuel pellet fabrication, the fuel assembly structure and the core composition have been varied to get an effective fuel exploitation. Based on advanced core process conditions the reactor power and the fuel burn-up have been increased at German plants in recent years. Improved dynamic process monitoring procedures are required to get more information about the varied core process behaviour during the reactor operation. Since several years ISTec has been performed investigations to the process monitoring based on process signal measurements in German nuclear power plants. Using the standard instrumentation of the plants process signals have been measured and analysed by means of the digital data acquisition system SIGMA. The measured time signals are influenced by core process transients, global and local process fluctuations and by signal line transfer functions. Advanced time series analysis methods have been applied to separate different process effects in the multiple signal matrix. The separation of different process influences can improve significantly the information about the process condition in the reactor core.     

压水堆一回路模拟腐蚀氧化物的溶解去污试验

本文介绍了对两种压水反应堆一回路模拟腐蚀氧化物（铁镍铬氧化物和铁镍氧化物）的溶解去污试验结果。选择的去污剂为0.3%草酸、0.1%柠檬酸和0.1%高锰酸钾。结果表明，实验温度为95℃、去污时间在6－48h范围内，0.3%草酸对铁镍铬氧化物和铁镍氧化物的溶解率分别为24.1%-65.3%和4.9%-64.4%；0.1%柠檬酸对二者的溶解率分别为2.2%-4.4%和0.37%-1.55%；0.1%高锰酸钾对二者几乎没有溶解作用。采用在草酸或柠檬酸去污前使用高锰酸钾去污剂的二步去污法，对两种氧化物的溶解度小于单独使用草酸或柠檬酸去污的一步法。     

堆泵浦3He-Ar-Xe激光体系小信号增益与效率实验研究

介绍了CFBR-Ⅱ堆泵浦3He-Ar-Xe体系1.73μm波长激光小信号增益和泵浦效率的实验研究.在脉冲峰热中子注量率为6.9×1014cm-2.s-1、3He、Ar、Xe气体的比例为80.219.30.5,总压强为8.3×104Pa时,采用透射率从1.7%到10%的6个谐振腔输出镜均获得了激光输出.在谐振腔输出镜透射率为7%时,得到了激光脉冲峰功率为45mW,其对应的激光泵浦效率为1%.在此基础上,利用Rigroa分析方法拟合出3He-Ar-Xe体系激光的小信号增益为0.24%/cm,饱和光强为36W/cm2.     

节能型中频电源平波电抗器的设计

对节能型中频电源平波电抗器的发热问题进行了分析，找出其发热的主要原因，并对其设计中的主要问题进行了详细论述。阐明了可以通过对电抗器绕组及冷却系统改进，以达到节能降耗，延长使用寿命的目的。     

聚合反应装置计算机仿真控制系统设计

本文介绍聚丙烯反应釜生产过程仿真培训系统，从工艺流程、人工控制、自动控制等对聚丙烯生产过程进行全面仿真，采用面向对象设计。多用户交互方式网络环境下运行，经过实验培训得到较好效果。     

堆芯摄像中的双视场合成原理及设计

为了实现两个不同方位的目标在同一视场中成像,通过反射镜将摄像机视场分成两个部分,这样光程相等的两目标便能在同一视场中成像。在堆芯摄像中,根据这一原理设计了具体的光学结构,并对光路进行了具体分析,同时对实际使用中的标识符进行了验算,表明该设计是合理的。     

Effect of MnOx/TiO2 Oxidation State on Ozone Concentration in a Nonthermal Plasma-Driven Catalysis Reactor

Manganese oxides on titanium dioxide were prepared by impregnation method at various calcination temperatures and by deposition-precipitation method and the catalysts were characterized using TG-DTA, XRD, XPS, and N₂ adsorption. Various oxidation states for manganese were obtained and activity towards ozone decomposition inside a nonthermal plasma catalysis reactor was investigated. Activity tests show that with increasing manganese oxidation state, the greater the degree of ozone decomposition inside the reactor. MnOx/TiO₂ prepared by impregnation method calcined at 350 °C showed the highest decrease in ozone concentration.