对流传质通常指运动流体与固体壁面之间,或两个有限互溶的运动流体之间的质量传递,它是相际间传质的基础。
将正规管柱(regular columns)的作用与和膜技术有关的对流传质(convective mass transfer)相结合,通过 高通量方法,加快了分离速度。
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溶质在相内的传质形式 – 分子扩散(molecular diffusion):依靠浓度差为推动力; – 对流传质(mass transfer by convection):流体流动或搅拌。 分子扩散两种基本形式:等摩尔反向扩散;单向扩散 6.
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除湿空调器传质性能的场协同理论研究_电子资料文库 关键词:除湿空调器,场协同理论,对流传质 [gap=828]Key words:dehumidifying air-conditioner ,field synergy theory, convection and mass transfer
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对流热质传学 CONVECTIVE HEAT AND MASS TRANSFER
The porosity changing during the cellulose pyrolysis and convective mass transfer caused by pressure variations was also considered in the model.
模型考虑了纤维素在热裂解过程中孔隙率变化,以及内外压力差引起的对流传质,并在此基础上,进行了相应的计算。
参考来源 - 生物质热裂解制油机理试验研究及流化床闪速热裂解装置设计For the Z-shaped micro-channel micromixer by convective mass transfer, the inlet velocity has the very tremendous influence to the mixing, but the diffusion coefficient's impact is small to the mixing.
对于以对流传质为主的Z型通道微混合器,入口速度对混合有很大的影响,而扩散系数对混合的影响较小。
参考来源 - 被动式微混合器混合特性的数值模拟·2,447,543篇论文数据,部分数据来源于NoteExpress
在常物性条件下,考虑有内部质量源时,对水中的金属腐蚀物杂质在加热管道中的紊流对流传质进行了理论分析和数值计算;
The theoretical analysis and numerical calculation are carried out for turbulent convection mass transfer in heated tubes with consideration of internal mass sources under constant properties.
计算结果表明流速越大,过饱和度越小,结垢过程越易为表面反应所控制;流速越小,过饱和度越大,结垢过程越易为对流传质所控制,且往往发生在液壁温差较大,壁温较高的情况下。
The calculation results show that the greater the flow velocity, the lower the supersaturation degree, and the easier the scale formation process will be controlled by a surface reaction.
电磁约束成型技术具有无模、电磁搅拌、强冷却等工艺特点。其凝固过程为一对流传热传质的动态过程。
Electromagnetic constrained forming technology features die-free, electromagnetic stirring and strong cooling, its solidification is a dynamic process of convective heat and mass transfer.
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