传质过程
- 网络mass transfer process
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以计算得到的稳定Taylor流动为基础,通过求解对流扩散方程,模拟了Taylor气泡单元内的传质过程。
The agreement between numerical simulation results and experimental results confirmed the validity of the present model . Furthermore , based on the simulated stable Taylor bubble flow , by solving the convection-diffusion equation , the mass transfer process in a unit Taylor cell was simulated .
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扩散系数是传质过程的一个重要参数。
Diffusivity is an important parameter of the mass transfer process .
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中空纤维致密膜基吸收CO2传质过程
Mass Transfer Process of CO_2 Absorption Through Non-porous Hollow Fibre Contactor
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GB/T7573-1987纺织品水萃取液ph值的测定液膜法萃取含铬废水传质过程的研究
Textiles & Determination of pH of the aqueous extract A STUDY ON MASS TRANSFER PROCESS IN EXTRACTION OF CHROMIUM FROM WASTE WATER WITH LIQUID MEMBRANES
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研究了SO2在放电电场中的气相传质过程。
The gas transfer process of SO2 in the corona discharging electric field is studied .
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PEM燃料电池阴极传质过程的二维数值模拟
2-D numerical simulation of mass transfer in PEM fuel cell cathode
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在启动期,IC反应器产气量很小,尚不能形成对颗粒污泥的有效搅动,传质过程主要受水力上升流速的控制。
Previous study showed that at the initial stage of startup the biogas in IC reactor could not stir up the granular sludge .
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因此,对PEMFC内的流动和传质过程的数值模拟研究,具有重要的工程意义与学术意义。
So the simulations of flow and mass transfer processes for PEMFC is very important .
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运用数学模型对超临界CO2萃取天然产物的传质过程进行模拟,对于预测工业化规模的萃取条件具有重要的指导意义。
The mass transfer models presented for supercritical CO2 extraction of natural products have great significance in prediction of extraction conditions of industrial scale .
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利用流体体积法建立了蜂窝型加湿器的流体动力学模型(CFD),反映了稳态的三维气液两相流动的传热传质过程。
A three-dimensional CFD model using the volume of fluid ( VOF ) method was presented for predicting the steady two-phase flow and heat transfer process .
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根据物料衡算原理建立了超临界CO2流体萃取葡萄籽油的动力学模型,分析了超临界CO2萃取的传质过程。
In this paper the mathematical model of supercritical fluid extraction were set up together with the principle of mass balance and analyzed the mass transfer process of supercritical fluid extraction .
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TEXACO气化炉激冷室下降管传热传质过程模拟
Heat & Mass Transfer Research on Descending Pipe of Quench Chamber in Texaco Coal Gasifier
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间接蒸发冷却器(IndirectEvaporativeCooler)是一种将水冷与空冷、传热与传质过程融为一体且兼有两者之长的高效节能冷却设备。
Indirect evaporative cooler , which combines water-cooling and air-cooling as well as heat and mass transfer , is a highly effective and energy-saving cooling facility .
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主要讨论了PEMFC内的多组分传输、膜内水管理和多孔电极内的传热、传质过程;
Detailed multi-component transport , water management in membranes and heat and mass transfer within the porous electrodes were described emphatically .
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结果表明,对于小鼠血清中的IgG灌注亲和色谱的分离,由于解离速率影响到传质过程,使之在高流速下的分离受到一定的限制。
The results indicated that the association / dissociation kinetics between IgG and protein G affinity packings became the rate-limiting step in perfusion affinity chromatographic separation process .
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PDMS复合膜水中脱除乙醇渗透汽化传质过程分析
Mass transfer in pervaporation during removal of ethanol from water with a poly ( dimethylsiloxane ) ( PDMS ) composite membrane
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文中从Pb聚并与分散的传质过程,探讨了叶轮搅拌与超声振动的作用制机及其装置的设计方法,优化了铸造工艺过程。
According to mass transfer process of Pb dispersion and accumulation , the mechanism of impeller stirring and ultrasonic vibration and the design of apparatus were discussed and the casting technique was optimized .
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介绍CO2与硅酸钠水溶液反应制备水合二氧化硅(白炭黑)工艺,探讨了其反应机理,分析了其传质过程。
The technology of preparing hydrated silica ( silica pigment ) by carbon dioxide reacting with sodium silicate solution is introduced . Its reaction principle is studied , and its transfer process is analyzed .
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通过分析空气电极表面的传质过程,以La(0.8)Sr(0.2)MnO3为催化剂,制作了多孔、疏水、透气的空气电极。
Combined with the investigation of mass transfer on the surface of air electrode , the semi-hydrophobic and porous gas diffusion electrodes were fabricated by use ofas catalyst .
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在分析饱和器内的传热传质过程基础上,建立了一维数学模型,并通过引入广义传质系数CC,简化了饱和器的计算过程。
This paper presents one-dimensional thermodynamic model of saturator on the basis of the analysis of heat and mass transfer process . The calculation procedure can be simplified by introducing general mass transfer coefficient CC .
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取得了较好的结果。(2)推导了一个结构化的平行扩散模型(SParDmodel),用于描述多孔色谱介质内蛋白质吸附传质过程。
A reasonably good result was obtained . ( 2 ) A structured parallel diffusion model ( SParD model ) was developed to describe the intraparticle mass transport of proteins in porous chromatographic matrices .
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模拟得到了不同参数对微通道内Taylor气泡单元传质过程的影响,可作为微流体设备设计及应用的理论基础。
The influences of various parameters on mass transfer process in a unit Taylor cell were obtained in the simulation , and the results could be served as theoretical basis for the design and application of microfluidic devices .
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通过计算和工程试验表明,在连续运行的脱硫反应塔中,控制脱硫产物氧化速率的是O2的传质过程。
Calculation and engineering tests in Shenyang , Nanning and Hangzhou FGD projects indicates that it is the O2 mass transport process which controls the oxidation rate of desulfurization product in consecutive operation of desulfurization tower .
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结果表明:气液传质过程不是Amoco工艺PX氧化反应过程的控制步骤,但对氧化过程有影响;
The results show that the gas-liquid mass transfer isn 't the control step of the oxidation process , but it influences the oxidation process slightly .
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本论文在对地道通风降温过程中的土壤与地道内空气传热传质过程进行理论分析的基础上,进行了土壤导热系数及传热传质的实验测试工作,并利用CFD技术对地道通风降温效果进行模拟。
This thesis is based upon theoretical analyses of heat and mass transfer between soil and air in the tunnel undergoing ventilation and cooling process . Experiments and tests were conducted concerning soil thermal conductivity as well as heat and mass transfer process .
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指出今后研究重点应为热态的固液悬浮、气液传质过程及其机理,同时说明用计算流体力学(CFD)对气液固三相搅拌反应器的数值模拟仍属起步阶段。
Solid-liquid suspension , gas-liquid mass transfer and the mechanisms of gas dispersion and solid suspension have not been investigated yet . Numerical simulation of hydrodynamic behavior of three phase stirred reactors by using the computational fluid dynamics ( CFD ) approach is still in the beginning .
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通常的电化学研究中,有关电极附近液层参与反应粒子的传质过程多局限于理论分析,其实验研究,即使应用Fick定律分析液相的扩散传质现象,也多限于简单的均态体系。
In electrochemical system , the mass transport process in liquid layer adjacent to electrode is studied through theoretical analysis only . The diffusion process can be analyzed theoretically by Fick 's law for homogeneous media .
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使用Sherwood公式对渗透蒸发过程中的液相传质过程进行分析,得出液相传质系数,应用串联阻力模型和实验数据相结合得出膜内传质系数。
Sherwood formula using pervaporation process analysis the liquid phase mass transfer , mass transfer coefficients of liquid drawn , the series resistance combination of model and experimental data obtained membrane mass transfer coefficient .
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将应用新型热源模型条件下数值模拟结果与实验测得结果相比较,结果表明新型热源模型适合于高速脉冲GMAW焊接传热、传质过程的数值模拟。
Comparison between predicted data and measured ones are performed , and the results show that the new established heat source model is suitable for the numerical simulation of heat and mass transfer in high-speed pulsed GMAW .
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通过VOF方法对气泡的生成过程和固定气泡的传质过程进行了模拟,模拟结果与实验结果吻合良好,验证了模型的正确性。
The formation of a single bubble and mass transfer for a fixed bubble were simulated by VOF method , respectively . The agreement between simulation results and experimental data confirmed the validity of the present model .