Simultaneous ultrasound and microwave new reactor: detailed description and energetic considerations

A new reactor in which microwaves (MW), delivered by a coaxial dipole antenna, and ultrasound (US), delivered by a metallic horn, can be simultaneously used in a liquid to perform different types of processes, widely referenced in literature, is presented in detail. Calibrations of thermal energy delivered to two liquids having very different dipolar moments (i.e. water and cyclohexane) using MW and US, both separately and simultaneously, are performed by employing the traditional calorimetric method. The main results are: (i) MW and US used simultaneously increase the thermal energy delivered to the two liquids with respect to their separate use, but differently using water or cyclohexane, and (ii) the total power absorbed by polar or non polar liquids is very different, both using MW and US.     

不同位形大破裂工况下CFETR 真空室预研件的电磁载荷分析

基于数值方法分析了中国聚变工程实验堆真空室预研件(CFETR VV mock-up)在大破裂工况(MD)下不同位形所对应的电磁参数，重点分析了不同位形运行条件下真空室上涡流和电磁力的分布及对比。结果表明，三种等离子体位形下VV电磁载荷分布情况近乎相等，各轴向分力最大值及各分段的最大值存在差异。电磁载荷的获得为进一步校核CFETR VV mock-up的局部结构强度提供了数据基础，对提高真空室的结构设计合理性和运行的安全性具有重要作用。     

Enhanced operation of a wastewater treatment process by periodic forcing input

This paper considers investigating the performance of a wastewater treatment plant consisting of a bioreactor with recycle followed by a clarifier under forced feed circulation. A previously developed dynamic model for the process is used to conduct the performance analysis. The static version of the model was utilized first to determine the optimal productivity conditions for the process. Numerical optimization is used to design the feed periodic function. The parameters of the feed cyclic functions are determined which resulted in improved productivity and substrate consumption. The improvement in productivity is marginal and is satisfactory for substrate conversion compared to that of the optimal condition and to the steady state condition, which corresponds to the average value of the periodic function.     

水处理用声化学反应器研究进展

介绍了在水处理中采用的液哨式、清洗槽式、变幅杆式、杯式、平行板、管型等声化学反应器的研究进展和应用现状。指出要在实际水处理工程中采用超声技术，必须尽快开展高效、大批量处理或流水式连续运行的声学反应器的基础研究与应用开发。     

核聚变--消除人类能源危机的济世良方

核聚变是解决人类能源问题的最有效途径．本文详尽论述了核聚变研究的必要性、可行性及广阔前景。     

ITER馈线系统CTB盒冷屏多层绝热结构传热性能的实验研究

线圈终端盒(CTB)是保证ITER装置可靠运行的关键部件之一,为磁体系统与低温车间、电源大厅、数据采集系统和低温控制元件提供4.5K的超低温工作环境。线圈终端盒(CTB)内部设有80K冷屏,以吸收室温环境对其内部工作空间带来的辐射热负荷,在杜瓦和冷屏中间,设有30mm的真空多层绝热夹层。首先采用量热法和称重法,对多层绝热试件进行了热性能测试,然后分别与理论分析和CTB原型件系统实验结果进行对比,得出了CTB盒中多层绝热结构的热性能参数,为下一步大规模生产提供了有力的技术支持。     

Fluorimetric reaction detectors for high-performance liquid chromatography Part 2. Reactor materials and effects of variable dynamic dimensions

Summary Using selected steroid pairs some effects of the coupling of liquid chromatographic separations with derivatization after separation on band broadening are investigated. Derivatization with isonicotinoylhydrazid in organic solvents and the multi-step reaction of ketosteroids to form dihydrolutidin derivatives in aqueous solution are given as examples. The dependence of the resolution on the reactor materal, on the design of the reactor, on the linear velocity of the liquid stream in the reactor and on the ratio of the flow rate in the HPLC column and the reactor are examined.Part 1. Selection of Chemical reactions     

Influence of reactor design on the electrochemical oxidation and disinfection of wastewaters using boron-doped diamond electrodes

Electrochemical oxidation is the most popular electrochemical advanced oxidation process within the scientific community owing to its simplicity and high effectiveness to treat different wastewaters. Electrode material and reactor design are important factors that influence the removal efficiency of pollutants. This work presents an overview of recent applications of electrochemical oxidation process for contaminant mineralization and water disinfection using electrochemical reactors, in batch and continuous mode of operation, fitted with boron-doped diamond electrodes. In addition, recent advances in the use of flow-through reactors (continuous single-pass and recirculation) are presented. Geometrical aspects, operating conditions, and energy consumption are provided and discussed.