浓差极化

利用超声波清洗膜污染和减轻浓差极化

Cleaning Membrane and Alleviating Concentration Polarization by Ultrasound

在中空纤维膜中Dean涡降低浓差极化的试验研究

The experimental research of dean vortices reducing concentration polarization in hollow fiber membrane

传质系数k是考察反渗透等膜过程中浓差极化的重要参数。为了较确切地测定k值，本文建立一种采用特制多孔电极的扩散电流法。

The mass-transfer coefficient k is an important parameter for predicting the concentration polarization of reverse osmosis and other membrane separation processes .

阳极结构参数对SOFC阳极浓差极化的影响

Anode structure parameters ' effects on concentration overpotential of anode-supported SOFC

PEM燃料电池阴极加湿对浓差极化的影响

Influence of Cathode Humidification on Concentration Polarization of PEM Fuel Cells

研究人员发现，浓差极化尤其内浓差极化（internalconcentrationpolarization，简称ICP）和膜污染限制了正渗透技术在实际研究与应用中的性能。

Researchers found that concentration polarization ( CP ), especially internal concentration polarization ( ICP ), and membrane fouling restricted FO membrane performance in actual research and application .

浓差极化与水解离的可利用性是EDI与ED过程的最本质区别。

The essential distinction of EDI process from ED process is the utilizable concentration polarization and dissociation of water .

在中空纤维膜中，Dean涡这种不稳定流能有效地将膜靠近膜壁的浓差极化现象大大消除。

In hollow fiber membrane , Dean vortices , the instability flow , can efficiently eliminate the CP phenomenon near the membrane wall .

通过设计一组试验，证明了浓差极化的危害性和Dean涡能较大程度的降低浓差极化。

Designed a group of experiments to illustrate the harmfulness of CP and the Dean Vortex capability to reduce CP to a great extent .

研究不同结构设计条件下，活化极化、欧姆极化、浓差极化对SOFC性能的影响。

The effects of activation , ohmic and concentration polarization on the overall performance of SOFC were studied under different designs .

同时建立了描述膜表面浓差极化的CFD模型，对于认识浓差极化层的形成机制和浓度分布具有重要意义。

A CFD model described concentration polarization on surface of membrane was made , which had a great significance for understanding the forming mechanism of concentration polarization layer and concentration profile .

等效电路中需要包含（Ca[RaYw]）这一复合元件，而且需要采用恒相位元件Q来表征电双层结构，因而该电极反应体系涉及吸附历程和浓差极化，并存在弥散效应。

Owing to the existences of adsorptive behavior and the impacts of concentration polarization and dispersion , the equivalent circuits include both multiple elements ( Ca [ RaYw ] ) and constant phase element Q describing the structure of double-layer cell .

电化学研究表明：当电极电势比-1.8V（vsSCE）更负时，能造成H+和Zn2+浓差极化，得到锌粉而非镀锌层。

The results of electrochemical studies indicate that the concentration polarization of Zn2 + and H + is great enough to obtain zinc powder instead of plate when the potential is more negative than-1.8V ( vs SCE ) .

本文在强化传质研究中借鉴纵向涡强化传热理论，并利用CFD软件FLUENT6.3来模拟不同纵向涡发生器对狭窄膜通道内浓差极化的影响。

With the theory of heat transfer enhancement by longitudinal vortex for reference , the present research used the CFD software FLUENT 6.3 to simulate the process of separation in a narrow membrane channel to investigate the effects of longitudinal vortex generators on concentration polarization phenomena .

结果表明：由于脉冲电沉积的一个关断时间使离子得以从溶液本体向电极表面扩散，在下一脉冲来临时浓差极化的减小有利于HAP的生长；

The results of pulsed electrodeposition show that there exists a relaxation time which is beneficial to the growth of HAP , due to it enables ions diffuse from bulk to the surface of electrode and reduce concentration polarization in the next pulse time .

膜污染分析表明，CMABR系统阻力由三部分组成：自身阻力、污染阻力及浓差极化阻力。

The analysis of membrane fouling show that the the resistance of membrane module consist of three parts : the natural resistance , the membrane fouling resistance and the concentration polarization resistance .

应用该模型对燃料电池的增湿效果和浓差极化进行研究。

The humidification and concentration polarization was studied with the model .

浓差极化与电液浓度分层

The polarization of concentration difference and the stratification of electrolyte density

研究浓差极化和膜污染过程的方法与策略

Methods and strategies of study on concentration polarization and Membrane fouling

铜电积过程中的阴极浓差极化和临界电流密度

Cathode Concentration Polarization And Critical Current Density in Electrowinning of Copper

微滤和超滤过程中浓差极化和膜污染控制方法研究

Control of Concentration Polarization and Fouling of Membranes in Microfiltration and Ultrafiltration

膜分离中的浓差极化现象及其减弱措施

Concentration polarization phenomena and polarization reduction in membrane separation processes

超滤分离过程及浓差极化现象的理论分析

Theoretical Analysis for Ultrafiltration Process and the Concentration Polarization Phenomenon

编织型中空纤维膜污染与浓差极化的试验研究

Membrane fouling and concentration polarization in woven hollow fiber membrane module module

液体分离膜过程中的浓差极化及其评价方法

How to evaluate concentration polarization in the process of liquid membrane separation

离子交换膜浓差极化伏&安特性剖析

The analysis for current - voltage characteristics of concentration polarization

膜厚度和流动状况对渗透蒸发过程的浓差极化影响

Effect of membrane thickness and flow rate on concentration polarization in pervaporation

交流电与浓差极化Ⅰ.平面电极上的非稳态过程

Alternative current and concentration polarization ⅰ . non-steady process at the plane electrode

消除浓差极化提高膜组件脱湿效率

Eliminate the differential concentration polarization to enhance the dehumidification efficiency of membrane components

压力驱动膜过程中浓差极化的介电模型

Dielectric Model of Concentration Polarization in Pressure-driven Membrane Process