从理论上分析了溶液除湿过程中传质过程和传热过程之间的耦合关系,建立了相应的数学模型,并对实际的溶液除湿过程进行了数值模拟。结果表明:传质过程对传热过程的影响主要体现在两方面:一是传质通量携带的焓对传热过程的影响,二是水蒸气变成水释放汽化潜热对传热过程的影响,其中汽化潜热的影响较大。而传热过程对传质过程的影响主要体现在温度对传质系数的影响。

Coupling relationship between the mass transfer process and heat transfer processes in liquid desiccant dehumidifica -tion process is analyzed theoretically , the physical and mathematical model is developed , and simulates the actual liquid desic-cant dehumidification process .The result shows that:the influence of mass transfer process to the heat transfer process is mainly embodied in two aspects:first, the enthalpy carried by the mass flux impact on the heat transfer process , the second is the water vapor turns into water release of latent heat of vaporization influence on the heat transfer process , between them, the latent heat of vaporization is affects obviously .The influence of heat transfer process to the mass transfer process is mainly embodied in temper -ature.

气液传质广泛存在于气体分离等化工过程中,强化气液传质有助于实现高效率低能耗的生产。在气液两相体系中加入第三分散相固体颗粒是强化气液传质的一个重要方法。该文对微米颗粒及纳米颗粒强化气液传质的实验和理论研究成果进行了总结与比较,对目前的研究中存在的问题进行了分析。在传统气液传质理论的基础上,阐述了3种被学者广泛认可的颗粒强化气液传质的机制,简单介绍了几个可以微观上解释颗粒强化气液传质现象的均相和非均相模型,比较了它们的使用范围和准确度。最后,在对已有文献综述的基础上对纳米颗粒强化气液传质的研究方向进行了展望。

Gas-liquid mass transfer is widespread in chemical industrial processes like gas separation. Enhancing gas-liquid mass transfer can help achieve production process with high efficiency and low energy consumption. It is an effective method to enhance gas-liquid mass transfer by adding the third dispersed solid particles. A review and comparison of the experimental and theoretical research results on gas-liquid mass transfer in the presence of fine particles were presented and existing problems were analyzed. Based on the traditional gas-liquid mass transfer theories, three widely accepted mechanisms explaining gas-liquid mass transfer enhancement caused by fine particles were introduced. Several homogenous and heterogeneous models developed for micro-explanation of the enhancement effect were discussed briefly, with their application scope and accuracy compared. Finally, the study directions in the field of gas-liquid mass transfer with nanoparticles were proposed based on the overview.

对低界面张力体系正丁醇-丁二酸-水在往复振动筛板塔中的萃取性能进行研究，体系中水为萃取剂，萃取正丁醇中的丁二酸。实验考察了两相流速、相比、传质方向和筛板振动速率对流体力学性能和传质性能的影响，并且与相同操作条件下固定筛板萃取塔的性能作对比。结果表明，筛板振动速率不高于3.5 cm/s的情况下体系没有发生乳化现象，相比增大到2.8时接近液泛点，实验稳定性较差。流速和相比增大能够获得更好的液滴分布和更大的体积传质系数，但增大的幅度要综合考虑设备的最大通量和两相在塔内的停留时间。分散相到连续相的传质方向传质相界面积大，更有利于提高传质效率。相同操作条件下，连续相中的轴向混合远大于分散相的轴向混合。与固定筛板塔的萃取性能相比，振动筛板改善液滴分布、增大处理能力和强化传质的作用都很明显。

This paper studied the extraction performance of low interfacial tension system n-butanol-succinic acid-water (BSW) in a Reciprocating Plate Extraction Column (RPEC). Water as the solvent, extracted succinic acid from n-butanol phase. The experiment investigated the effects of flow rate,phase ratio, mass transfer direction and reciprocating rate upon the hydrodynamic and mass transfer performance. The results of extraction using stable sieve plate were compared. The results indicated that the reciprocating rate of plates should not be higher than 3.5cm/s to avoid emulsion. When phase ratio was 2.8,the operation approached the flooding point,and the experiment was not stable. The distribution of drops was better and the volumetric mass transfer coefficient was greater under the condition of higher flow rates and larger phase ratio. However, the range of increase was limited by the maximum throughput and the residence time of two phases. Due to its larger interface area, mass t

中空纤维透析器广泛应用于终末期肾病的血液透析治疗，对全球的肾病患者有着重要作用，然而关于透析器溶质传递方面的研究却很少。本文根据质量守恒定律和双膜理论建立了一个中空纤维透析膜传质模型，使用中小分子代表物质对三种常用膜材料进行测试，并使用该传质模型计算总传质系数和纤维膜的扩散系数，分析纤维膜传质性能与纤维膜材料/结构特性之间的相互关系，为中空纤维膜制备过程中的材料选择、结构优化设计等提出了参考性建议。

Hol ow ifber dialyzer is widely applied in the end-stage renal disease in hemo-dialysis therapy. It plays an important role in kidney disease patients in the world. However, there is lit le research of solute transfer in dialyzer. This paper builds a mass-transfer model of dialysis hol ow ifber membrane, based on mass-conservation theory and double-membrane theory. Three common membrane materials are tested and calculated with the mass transfer model with represent solutes. With analysis of relationship between mass-transfer performance and the structural characteristics of membrane, referential suggestions for material selection and structural design in manufacture of hol ow ifber membrane are put forward.

研究应用GOTHIC8.0程序分析AP1000核电厂非能动安全壳冷却系统（PCS）传热传质过程，通过理论计算和程序分析两种方式对分析结果进行比较和评价。研究结果表明：GOTHIC8.0程序的DLM‐FM模型适用于模拟安全壳内蒸汽在安全壳内壁面的冷凝传热传质过程，Film模型适用于模拟安全壳外水膜的蒸发传热传质过程。GOT HIC8.0程序可用于分析AP1000核电厂 PCS传热传质过程，为AP1000核电厂在设计基准事故（DBA）下安全壳响应分析提供了另一种可行的工具。

The GOTHIC8.0 code was used to analyze heat and mass transfer process for passive containment cooling system (PCS ) of AP1000 NPP ,and the analysis results were compared and evaluated by theoretical calculation and code analysis .The results show that the DLM‐FM model is adopted to model the condensation process on the inside wall of containment ,the Film model is used to model the evaporation process on the outside wall film of containment .It shows that GOTHIC8.0 code is applicable to analyze heat and mass transfer process for PCS of AP1000 NPP and it is possible to be another tool to analysis AP1000 NPP containment response during DBA .