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      bed
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    Preparation of Spherical Cellulose/TiO_2 Composite Adsorbent for Expanded Bed Adsorption and Its Application to Purification of Proteins
    球形纤维素/钛白粉复合扩张吸附剂的制备及其在蛋白质纯化中的应用
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    Methodological Approach to the Influence of Biomass on Expanded Bed Adsorption
    固体生物质对扩张吸附的影响和方法研究
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    A STUDY OF THE MULTI-STAGE FLUIDIZED BED I Liquid-Solid System
    多层流态化的研究Ⅰ 液-固系
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    A STUDY OF THE MULTI-STAGE FLUIDIZED BED II Gas-Solid System
    多层流态化的研究Ⅱ 气-固系
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    The Break-Through Curves of Xylene Isomersfor Fixed_ Bed Adsorption Separation Process with Y Type Molecular Sieve
    Y型分子筛固定吸附分离二甲苯异构体的透过曲线
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  床层
    A Discussion on the Problem of Pressure Drop in the Fixed bed Catalytic Reactor
    固定床催化反应器床层压强降问题的讨论
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    THE EFFECT OF OPERATING PARAMETERS ON THE HOT SPOT OF A HIGHLY EXOTHERMIC CATALYTIC FIXED BED REACTOR
    操作参数对强放热固定床催化反应器床层热点的影响
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    Determination of Mass Transfer Coefficient in Liquid-Solid Adsorption Bed by Pulse Chromatographic Method
    用脉冲色谱法测定液固吸附床层内的传质系数
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    Radial Distribution of Heat Transfer Coefficient in Fast Fluidized Bed
    快速流化床内床层与浸润表面间的传热研究——传热系数的径向分布规律
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    INVESTIGATION ON BREAKTHROUGH CURVE OF SO_2 IN A PACKED BED OF ACTIVATED CARBON
    SO_2在活性炭床层中的透过曲线
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  流化床
    Application of Artificial Neural Network and Chaos Theory in Gas-Solid Circulating Fluidized Bed
    人工神经网络及混沌理论在气固循环流化床中的应用
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    Investigation of Gas-Solid Two-Phase Flow Behavior in Fluidized Bed by Means of Les-Dsmc Method
    应用LES-DSMC方法研究流化床气固两相流动特性
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    STUDY ON THE HYDRODYNAMIC PROPERTIES IN A COCURRENT THREE PHASE FLUIDIZED BED
    气液并流向上三相流化床流体流动性质的研究
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    Oxidation Kinetics of Floated Copper Concentrate in Fluidized Bed
    磨浮铜精矿流化床氧化动力学
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    Modeling and Simulation of the lean Phase space in Fluidized Bed Combustors——Reduction of NO and SO_2
    流化床稀相空间的模型计算——燃烧器中NO、SO_2还原过程模拟
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  “bed”译为未确定词的双语例句
    STUDIES ON U(Ⅵ)-U(Ⅳ) REDOX DISPLACEMENT CHROMATOGRAPHY Ⅱ. TOTAL REFLUX, EXCHANGE EQUILIBRIUM AND ρ-ρ RELATION ON CATIONIC EXCHANGE BED
    U(Ⅵ)-U(Ⅳ)氧化还原排代色谱学研究——Ⅱ.阳交换的全回流、交换平衡和ρ-(?)关系
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    Estimation of Heat Transfer Parameters in Packed Bed by Using Orthogonal Collocation
    用正交配置技术估计固定床内的传热参数
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    Study of Bubble Behavior in a Fluidized Bed Catalytic Reactor and Simulation and Optimization of an Industrial Reactor
    沸腾转化催化剂床内气泡特性研究与工业反应器的模拟和优化
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    MEASUREMENT OF GAS CONCENTRATION DISTRIBUTION IN ADSORPTION BED
    吸附床内气体浓度分布的测定
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    Influence of Embedment in Powder Bed Sintering Technology on Superconductivity of YBa_2Cu_3O_(7-δ) Materials
    埋粉法烧结工艺对YBa_2Cu_3O_(7-δ)材料超导性能的影响
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  bed
       A test-bed is built up and regenerative braking tests are carried out.
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       The pressure drop of a cross-flow moving-bed was investigated in a two-dimensional rectangular apparatus.
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       A comparison was described by using three methods of enzymatic hydrolysis and adsorption of steam exploded straw (SEWS): shaking ball in the regime, shaking with stirrer bed, and static state.
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       Numerical simulation of two-dimensional spouted bed with draft plates by discrete element method
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       A discrete element method (DEM)-computational fluid dynamics (CFD) two-way coupling method was employed to simulate the hydrodynamics in a two-dimensional spouted bed with draft plates.
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         An experimental investigation was made of temperature gradients in air streams being cooled while flowing through a cylinder of diameter 81 mm packed with high thermal conductivity (iron and copper) and low thermal conductivity solids of spheres, cylinders and Raschig rings. From the measured temperature gradients at various bed depths and radial posi-tions, and for the different particle sizes and flow rates, the effective thermal conductivity Ke, and the heat transfer coefficient of the wall hw, wer...
            作者用低导热系数(包括玻璃、磁)的球体、圆柱体、环柱体与高导热系数(包括铜、铁的球体,圆柱体为填充物,以空气为传热介质,使其在管径为81毫米之填充床层内冷却,改变流体流量,床层高度及填充物大小,通过试验测出在不同的条件下床层的径向温度分布,并应用积分法、直流电模拟计算法及图解法求得床层的有效导热系数及管壁薄膜传热系数.在试验范围:低导热系数填充物D_P/D_t自0.074—0.254;高导热系数填充物D_p/D_t自0.12—0.2,L/D_t自5—15,Re汇数自130—1400,即直线速度自0.5—1.6公尺/分,若以床层进出口平均温度之数学平均值为定性温度,则床层之有效导热系数及管壁薄膜传热系数可分别归纳于下式:低导热系数填充物:K_e=0.182(D_t/D_p)~(0.45)Re~(0.75),h_w=65e~(-4)(D_p/D_t)(K/D_t)((D_t/L))~(0.2)Re~(0.4)高导热系数填充物:K_e=0.3k(D_t/D_p)~(0.6)Re~(0.72),h_w=5.1(K/D_t)(D_t/D_p)~(0.8)(D_t/L)~(0.1)Re~(0.46)填充物形状对K_e及h...
文摘来源
         In this paper the influence of Pr number, shape and thermal conductivity of the packing material and the bed height on the heat transfer coefficients of the packed beds have been thoroughly studied when air and water were cooled through packed tubes. In order to offer the data for the design of fixed bed, catalytic reactors and packed heat exchangers operated at high space velocity, high Re number was adopted.
            填充床层之传热系数包括二重阻力,即床层内部的传热阻力和床层与管壁界面间薄膜的传热阻力。本文以空气和水为传热介质,使其流过填充床层冷却,改变操作条件和床层构造,考察了Pr准数,床层高度、填充物的导热系数和形状对於传热系数的影响。由於高速固定床接触反应器和填充热交换器逐渐在工业上取得了应用,高线速下的传热数据需要迫切,因此试验的范围采用了较大的Re准数。 玻璃或磁质等低导热系数球状填充物的传热系数可归纳成: 试验范围: D_p/D_t=0.08~0.5; L/D_t=10~30; Re=250~6500; Pr=0.722~4.8 铜、铁等高导热系数球状填充物的传热系数可归纳成: 试验范围; D_p/D_t=0.1~0.5; Re=300~10,000;   L/D_t=10~30 在此范围内所有试验皆经过二次以上的重复试验,误差一般不大於5%。 以圆柱体为填充物的传热系数,仅须将修正Re准数中的几何量D_p,改成与圆球具有相同的几何表面面积的球径D'_p即可。 以上二式说明流体的物理性质即Pr准数对传热系数的影响不很显著,床层高度对传热系数的影响:低导热系数填充...
文摘来源
         The flow characteristics of the liquid and solid phase in a multi-stage flui-dized bed with down comers was studied systematically in the following aspects: (1) the longitudinal back-mixing of the liquid phase, (2) the pressure drop of the liquid flowing through the perforated distribution plate, (3) the gravity flow of the solid particles through the bottom aperture of the downcomer pipe, and (4) the working characteristics of the downcomer pipe.
            本文研究了液-固系多层流态化床(溢流管式)中两相流动的特性,其内容包括液相的纵向混合,液体通过多孔分布板的压降,颗粒物料通过溢流管孔口的自由流落,溢流管在流化床中工作的性能及多层床的操作特性。提出了可供设计参考的关联式。
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