级效率,stage efficiency
1)stage efficiency级效率
1.Based on the studies of the effects of main parameters on mass transfer stage efficiency,the optimal operating factors are given.在研究主要操作参数对萃取级效率影响的基础上 ,确定了最适宜的操作条件 ,得到了 97%以上萃取级效率
2.The relations between different operating factors and both of mass transfer stage efficiency and entrainment were studied in QH 1——phenol system with φ20mm annular centrifugal extractor.采用 φ20 m m 环隙式离心萃取器研究了不同操作条件对夹带量和传质级效率的影响。
3.Through the two different designed experiments of the leak-out flow of the balance holes,its influence to the stage efficiency is presented which gives reference for the design.关于叶轮平衡孔的存在对级性能的影响,通过两种方案的试验,概论了其漏气对级效率的影响。
英文短句/例句

1.Experimental Study of Improving Classification Efficiency of the Inclined Plate提高倾斜板沉降分级效率的实验研究
2.A Study about the Classification of Efficiency of Electret Filtrate Material's to the FPM by Experiments;驻极体滤料对微细颗粒物分级效率的试验研究
3.The Research of the Efficiency of Grinding Classification in Fankou Mine;提高凡口铅锌矿二段磨矿分级效率研究
4.grade separating rate of solid control equipment固控设备的级分离效率
5.Columbus Ministerial Declaration on Trade Efficiency关于贸易效率的哥伦布部长级宣言
6.Analysis of Transmission Efficiency for Metal Pushing V-Belt Type CVT金属带式无级变速器传动效率的分析
7.Performance Study on Resistance and Efficiency of the Two Stage Cyclone Separator;两级疏水旋风子阻力与效率性能研究
8.Game Action and Efficiency of Educational Finance in Multilevel Government;多级教育财政的博弈行为及效率研究
9.The Measurement of Provincial Governments Efficiency of China in 2002;2002年中国省级地方政府效率测度
10.Design HB LED Driver Through Primary Side Regn Lation通过初级端调节提高HB LED照明效率
11.A Study on the Efficiency of Star-rated Hotels--A Case Study on the Relative Efficiency of Beijing, Shanghai and Guangzhou Province;基于DEA的星级酒店效率研究——以北京、上海、广东相对效率分析为例
12.Research for Reducing the Losses of High Efficiency (IE2) Electric Motors and Premium Efficiency (IE3) Electric Motors符合IEC高效(IE2)、超高效(IE3)效率等级的电动机降低损耗措施的研究
13.The unit's performance depends largely on the number of stages or trays.这种装置的效率主要取决于级或盘的多少。
14.In order to strengthen teaching efficiency, small-class system is required for these two programs.为强化教学效率,这两种班级都是小班制。
15.Primary productivity and energy conversion efficiency in eel pond养鳗池塘的初级生产力和能量转换效率
16.Experimental Study of Transmission Efficiency for Metal Pushing V-Belt Type CVT金属带式无级变速器传动效率的实验研究
17.Class Size and Primary School English Learning Efficiency: A Correlation Analysis;班级规模与小学英语学习效率相关分析
18.Research on Efficiency of Areation and its Effecting Factors with Multi-Grade Drop-Aeration Process;多级重力跌水中充氧效率及其影响因素研究
相关短句/例句

classification efficiency分级效率
1.By the improvement,classification efficiency was improved,and grinding efficiency was raised 5%.通过对Φ660mm Krebs gMax水力旋流器应用研究,调整水力旋流器工艺参数,替代Krebs标准水力旋流器后基本解决了德兴铜矿大山选矿厂存在的溢流产品粒级组成不够合理、沉砂中细粒级含量偏高的问题,提高了分级效率,磨机台效提高5%。
2.The classification efficiency and resisting force expenses have been compaired with cyclone dust extractor by rltv empirical study.与普通旋风除尘器进行了对比实验研究,比较了分级效率和阻力损失情况,结果表明在相同风量下,无筒体旋风除尘器的分级效率高于有筒体旋风除尘器;在相同风量下,无筒体旋风除尘器的阻力损失较有筒体旋风除尘器的阻力损失有所增加。
3.The ex- periments showed that the classification efficiency was a linear function of the Stokes number in Rosin-Rammler coordinates.对4种微型旋风分离器在不同流速下的分级效率进行了实验研究,并采用无因次的Rosin-Rammler坐标对测试数据进行了整理。
3)grade efficiency分级效率
1.Grade Efficiency Model of the Revolution Passage of a Cyclone Inlet;旋风器进口回转通道分级效率模型
2.By analyzing the oil droplets' random nonlinear motion in hydrocyclones, a random model of the motion of oil droplets was founded, based on which Monte Carlo method was adopted to predict the grade efficiency of the hydrocyclone.对油滴在水力旋流器中非线性随机运动的特点进行了分析,运用随机过程理论,建立了油滴运动的随机模型,并采用Monte Carlo方法进行模拟,预测旋流器的分级效率
3.Particularly, for grain size <2?μm, the grade efficiency of CIESP and cyclone compared with conventional C.介绍了一种直筒式离心脉冲静电除尘器 ,研究了其除尘效率与入口风速、直流基础电压、入口粉尘浓度等操作因素的关系 ;测定了在不同入口风速、不同供电情况下除尘器的分级效率
4)fractional efficiency分级效率
1.On the air-flow of dust content and computation of fractional efficiency in the inertia settling space;惯性沉降空间含尘气流运动及其分级效率计算
2.Experimental study on fractional efficiency of cyclone dust collector without barrel;无筒体旋风除尘器分级效率的实验研究
3.The formulas for the fractional efficiency of wet scrubbers are given.对湿式除尘机理进行了理论分析,导出了湿式除尘器分级效率的计算公式。
5)grade efficiency粒级效率
1.The relationship between these criteria and grade efficiency as well as the formulae for calculating fractional efficiency of PV type cyclone were then deduced by regression analysis of experimental results.根据大量实验数据的回归分析,关联了这些相似准数与粒级效率的关系,从而给出了PV型高效旋风分离器的粒级效率的计算公式。
2.The separation behavior of the hydrocyclone model F has been studied comprehensively based on the concept of grade efficiency.在所研制的液-液旋流分离专用实验装置上,采用168通道的库尔特粒径分析仪,通过液滴粒径检测并基于粒级效率的概念,较为系统地研究了国外F型旋流管的分离特性,得出其临界分离粒径约为60μm,这一结论同国外有关研究结果相吻合。
6)energy level efficiency能级效率
延伸阅读

级效率  分级接触传质设备中,一个级的传质分离效果接近理论级的程度的度量。在分级接触传质设备的设计中,实际级数的确定是主要内容。板式塔的级效率,常称板效率。在设计计算中常用的级效率有单级效率和总级效率。    单级效率  又称莫弗里效率,可分别用x相(在吸收和蒸馏中为液相,萃取中为萃余液)或y相(在吸收和蒸馏中为气相或汽相,萃取中为萃取液)的浓度(以摩尔分率表示)来计算,即:          式中ηMx和ηMy分别为以x相浓度和y相浓度来表示的第n级的单级效率;yn和yn+1分别为离开第n 级和第n+1级的y相浓度;xn为xn+1分别为离开第n级和第n-1级的x相浓度;y为与xn平衡的y相浓度;x为与yn平衡的x相浓度。x相从第n-1级流向第n级,y相则从第n+1级流向第n级。    总级效率  又称全塔效率,是某分离操作所需的理论级数NT和实际级数NP之比,即:           η0=N T/NP式中η0为总级效率,它实质上是全塔各级级效率的某种平均值。级效率综合地反映了相互接触的两相在级内的传质情况,它与许多因素有关。在气(汽)液传质的板式塔中,影响板效率的因素有:①塔板的结构和尺寸;②气液两相的流动接触情况(包括泡沫层高度、速度分布、气液相的返混、雾沫夹带和塔板漏液等);③两相的有关物理性质(如分子扩散系数、密度、粘度、表面张力和相对挥发度等)。这些因素与级效率的复杂关系,至今尚未搞清。目前,有些针对特定塔板结构的总板效率的经验关系式,在设计中可用于估计;通常,可靠的级效率值仍须由实验测定。美国化学工程师协会提出过一个计算泡罩塔和筛板塔板效率的方法,但其中用到的一些基本数据仍须由实验求得。